Stockholders' Equity (Narrative) (Details) - USD ($)
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1 Months Ended |
3 Months Ended |
6 Months Ended |
9 Months Ended |
12 Months Ended |
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Nov. 20, 2015 |
Oct. 31, 2015 |
Sep. 30, 2015 |
Sep. 04, 2015 |
Aug. 31, 2015 |
Aug. 12, 2015 |
Jul. 31, 2015 |
Apr. 09, 2015 |
Apr. 08, 2015 |
Feb. 29, 2016 |
Jan. 31, 2016 |
Dec. 31, 2015 |
Nov. 20, 2015 |
May. 31, 2015 |
Apr. 30, 2015 |
Mar. 31, 2016 |
Mar. 31, 2015 |
Jun. 30, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
Sep. 30, 2015 |
Dec. 31, 2015 |
Jun. 11, 2015 |
Jul. 17, 2006 |
Common Stock, Shares Authorized |
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500,000,000
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500,000,000
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500,000,000
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Common Stock, Shares, Outstanding |
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18,628,957
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20,828,957
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18,628,957
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Class of Warrant or Right, Outstanding |
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4,886,764
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4,886,764
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4,886,764
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Number of options outstanding |
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5,236,909
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5,052,409
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2,026,564
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5,236,909
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Number of options vested and expected to vest outstanding |
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3,442,023
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3,257,523
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3,442,023
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Aggregate intrinsic value |
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$ 0
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$ 0
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Unrecognized compensation costs |
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$ 1,000,000
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Weighted average recognition period |
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1 year 11 months 16 days
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Restricted stock grants estimated forfeiture amount |
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1.50%
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Share based compensation |
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$ 185,456
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$ 81,680
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Equity Issuance, Per Share Amount |
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$ 0.92
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Common Stock issued |
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18,628,957
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20,828,957
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18,628,957
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Proceeds from Issuance of Common Stock |
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$ 1,396,339
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$ 0
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Stock options granted |
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55,500
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3,491,419
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Fair value of stock options granted |
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$ 4.06
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$ 10.61
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$ 4.06
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Stock options granted |
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55,500
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3,491,419
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Stock issued for compensation for commitment, shares |
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300,000
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Stock issued for compensation for commitment, amount |
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$ 276,000
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Approximations [Member] |
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Stock option expense |
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$ 0.2
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$ 100,000
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Chief Executive Officer [Member] |
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Non-qualified stock options |
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1,401,432
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Aspire Capital [Member] |
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Common Stock issued |
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2,200,000
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Proceeds from Issuance of Common Stock |
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$ 1,400,000
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Issuance of 4,284,312 non-qualified 5 - 10 year options [Member] |
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Non-qualified stock options |
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4,284,312
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Lower Limit |
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$ 0.56
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Upper Limit |
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$ 15.00
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Issuance of 512,895 non-qualified 3 - 10 year options [Member] |
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Non-qualified stock options |
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512,895
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Lower Limit |
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$ 0.92
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Upper Limit |
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$ 15.30
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Equity Purchase Agreement [Member] | Aspire Capital [Member] |
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Common stock reserved for issuance |
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3,600,000
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Nasdaq 20% Rule |
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Requires shareholder approval of a transaction other than a public offering involving the sale, issuance, or potential issuance by a company of common stock (or securities convertible into or exercisable for common stock) equal to 20% or more of the common stock, or 20% or more of the voting power outstanding before the issuance for less than the greater of book or market value of the stock.
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Common stock, purchase commitment amount |
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$ 10,000,000
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Common stock purchase amount, per business day |
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100,000
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Common stock purchase amount, per business day, value |
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$ 250,000
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Percentage of aggregate shares of the Company's common stock to be purchased |
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30.00%
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Percentage of purchase price per share, pursuant to VWAP |
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95.00%
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2006 Stock Plan [Member] |
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Non-qualified stock options |
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18,305
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14,805
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8,368
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22,390
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2015 Equity Incentive Plan [Member] | Directors [Member] |
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Contractural lives |
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10 years
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Expected term |
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5 years 6 months
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Expected dividends |
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$ 0
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2015 Short-Term Non-Qualified Option Grants [Member] |
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Non-qualified stock options |
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8,255
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1,803
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1,536
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1,812
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1,129,135
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9,752
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Lower Limit |
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0.10
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Upper Limit |
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0.86
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Strike Price |
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1.26
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$ 0.92
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Expected dividends |
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$ 0
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2015 Long-Term Incentive Option Grants [Member] | Employees and Consultants [Member] |
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Contractural lives |
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10 years
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Stock options granted |
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79,588
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Pre-vesting forfeiture rate |
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1.50%
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Expected dividends |
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$ 0
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Stock options granted |
661,222
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550,972
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2015 Long-Term Incentive Option Grants [Member] | Directors [Member] |
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Non-qualified stock options |
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23,024
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112,996
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97,988
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ATM Offering [Member] |
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Common Stock issued |
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246,083
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Proceeds from Issuance of Common Stock |
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$ 282,000
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Issuance of 255,202 non-qualified 10 year options [Member] |
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Non-qualified stock options |
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255,202
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Contractural lives |
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10 years
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Lower Limit |
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$ 4.50
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Upper Limit |
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$ 14.40
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Minimum [Member] | Chief Executive Officer [Member] |
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Contractural lives |
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1 year 8 months 12 days
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Minimum [Member] | Directors, Officers and Employees [Member] |
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Contractural lives |
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3 months 18 days
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Minimum [Member] | Issuance of 4,284,312 non-qualified 5 - 10 year options [Member] |
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Contractural lives |
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5 years
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Minimum [Member] | Issuance of 512,895 non-qualified 3 - 10 year options [Member] |
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Contractural lives |
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3 years
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Minimum [Member] | 2015 Equity Incentive Plan [Member] | Directors [Member] |
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Volitility rate |
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86.00%
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Risk-free interest rate |
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1.46%
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Fair value of stock options granted |
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$ 0.65
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Minimum [Member] | 2015 Short-Term Non-Qualified Option Grants [Member] |
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Contractural lives |
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3 years
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Risk-free interest rate |
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0.42%
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Dividend yield |
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76.00%
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Expected term |
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1 year 6 months
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Strike Price |
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$ 0.56
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$ 0.83
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Minimum [Member] | 2015 Long-Term Incentive Option Grants [Member] | Employees and Consultants [Member] |
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|
|
|
|
|
Volitility rate |
|
|
|
|
|
|
|
|
86.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Risk-free interest rate |
|
|
|
|
|
|
|
|
1.55%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Strike Price |
|
|
|
|
|
|
|
|
$ 0.92
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Fair value of stock options granted |
|
|
|
|
|
|
|
|
0.67
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Fair market value on measurement date |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 0.34
|
|
|
|
|
|
|
|
|
Minimum [Member] | 2015 Long-Term Incentive Option Grants [Member] | Directors [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Strike Price |
|
|
|
|
|
|
|
|
$ 0.92
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Maximum [Member] | Chief Executive Officer [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Contractural lives |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
9 years 7 months 6 days
|
|
|
|
|
|
|
|
|
Maximum [Member] | Directors, Officers and Employees [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Contractural lives |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10 years
|
|
|
|
|
|
|
|
|
Maximum [Member] | Issuance of 4,284,312 non-qualified 5 - 10 year options [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Contractural lives |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10 years
|
|
|
|
|
|
|
|
|
Maximum [Member] | Issuance of 512,895 non-qualified 3 - 10 year options [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Contractural lives |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10 years
|
|
|
|
|
|
|
|
|
Maximum [Member] | 2015 Equity Incentive Plan [Member] | Directors [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Volitility rate |
|
|
|
|
|
|
|
|
87.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Risk-free interest rate |
|
|
|
|
|
|
|
|
1.79%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Strike Price |
|
|
|
|
|
|
|
|
$ 1.26
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Fair value of stock options granted |
|
|
|
|
|
|
|
|
$ 0.88
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Maximum [Member] | 2015 Short-Term Non-Qualified Option Grants [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Contractural lives |
|
|
|
|
|
|
|
|
10 years
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Risk-free interest rate |
|
|
|
|
|
|
|
|
1.76%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dividend yield |
|
|
|
|
|
|
|
|
89.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Expected term |
|
|
|
|
|
|
|
|
5 years
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Strike Price |
|
|
|
|
|
|
|
|
$ 1.25
|
|
|
|
|
|
|
|
|
|
|
|
$ 1.25
|
|
|
|
Maximum [Member] | 2015 Long-Term Incentive Option Grants [Member] | Employees and Consultants [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Volitility rate |
|
|
|
|
|
|
|
|
87.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Risk-free interest rate |
|
|
|
|
|
|
|
|
1.87%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Strike Price |
|
|
|
|
|
|
|
|
$ 1.26
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Fair value of stock options granted |
|
|
|
|
|
|
|
|
$ 0.91
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Fair market value on measurement date |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 0.36
|
|
|
|
|
|
|
|
|
Maximum [Member] | ATM Offering [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total fundraising limit |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 5,800,000
|
|
Employee Stock Option [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Volitility rate |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
84.54%
|
|
|
|
|
|
86.66%
|
|
|
Risk-free interest rate |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.69%
|
|
|
|
|
|
1.64%
|
|
|
Dividend yield |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.00%
|
|
|
|
|
|
0.00%
|
|
|
Expected term |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 year 11 months 8 days
|
|
|
|
|
|
5 years 4 months 17 days
|
|
|
Stock and Stock Equivalents [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Common Stock, Shares, Outstanding |
|
|
|
|
|
|
|
|
|
|
|
28,752,630
|
|
|
|
30,768,130
|
|
|
|
|
|
28,752,630
|
|
|
Stock Compensation Plan [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Common Stock, Capital Shares Reserved for Future Issuance |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3,000,000
|
Maximum restricted shares granted [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Common Stock, Capital Shares Reserved for Future Issuance |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(1,500,000)
|
Stock-based compensation [Member] | Approximations [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Share based compensation |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 200,000
|
|
|
|
|
|
$ 100,000
|
|
|
2006 Stock Plan [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Non-qualified stock options |
|
|
|
|
|
|
|
|
|
|
|
|
|
1,775
|
2,981
|
|
|
1,310
|
|
|
|
|
|
|
2006 Stock Plan [Member] | 2015 Short-Term Non-Qualified Option Grants [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Non-qualified stock options |
|
|
|
|
|
|
|
47,017
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2006 Stock Plan [Member] | 2015 Short-Term Non-Qualified Option Grants [Member] | Employees and Consultants [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Non-qualified stock options |
|
|
|
|
|
|
|
|
463,192
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2015 Equity Incentive Plan [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Non-qualified stock options |
|
|
|
|
|
135,880
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Strike Price |
|
|
|
|
|
$ 1.26
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2015 Equity Incentive Plan [Member] | 2015 Short-Term Non-Qualified Option Grants [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Non-qualified stock options |
|
|
|
|
|
|
|
3,968
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2015 Equity Incentive Plan [Member] | 2015 Short-Term Non-Qualified Option Grants [Member] | Employees and Consultants [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Non-qualified stock options |
|
|
|
|
|
|
|
|
148,845
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|