Lightbridge Corporation Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity and Stock-Based Compensation (Details Narrative)

Stockholders' Equity and Stock-Based Compensation (Details Narrative) - USD ($)			1 Months Ended							6 Months Ended	9 Months Ended	12 Months Ended
	Feb. 06, 2017	Aug. 02, 2016	Jul. 31, 2019	Apr. 16, 2019	Aug. 31, 2018	May 31, 2018	Apr. 30, 2018	Mar. 30, 2018	Jan. 30, 2018	Jun. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Apr. 30, 2019	Jul. 30, 2018	May 31, 2017	Mar. 25, 2015
Exercise price									0.25
Common stock, shares authorized										100,000,000		100,000,000
Common stock, shares, outstanding										37,605,914		32,862,090
Class of Warrant or Right, Outstanding										844,337		844,337
Stock options outstanding										5,224,720		5,604,154
Additional common shares												100,753
Total stock and stock equivalents outstanding										47,579,297		43,114,512
Proceeds from the issuance of the warrants and common shares										$ 4,000,000
Common stock, conversion basis										The Series B Preferred Stock was initially convertible into 2,666,667 shares of common stock.
Preferred stock par value										$ 0.001		$ 0.001
Common Stock, Shares Issued										37,605,914		32,862,090
Number of options vested and expected to vest outstanding										3,673,176		3,935,138
Unrecognized compensation costs										$ 300,000
Weighted average recognition period										4 months 28 days
Aggregate intrinsic value										$ 0		$ 0
Series B Preferred Stock conversion description										The Company has the option of forcing the conversion of all or part of the Series B Preferred Stock if at any time the average closing price of the Company’sCompany’s common stock for a thirty-trading day period is greater than $5.4902 prior to August 2, 2019 or greater than $8.2353 at any time. The Company can only exercise this option if it also requires the conversion of the Series A Preferred Stock in the same proportion as it is requiring of the Series B Preferred Stock.
Preferred stock convertible amount										$ 6,200,000
Warrants [Member]
Proceeds from the issuance of the warrants and common shares										300,000
Holders of Series A Preferred Shares [Member]
Common stock, shares issued, conversion of preferred stock							124,882				110,530
Convertible preferred stock, shares converted							111,260				95,116
Shares issued against dividend											729
B. Riley FBR, Inc. [Member] \| ATM Agreement [Member]
Net proceeds to Company										20,700,000
B. Riley FBR, Inc. [Member] \| On January 24, 2018, January 26, 2018, February 7, 2018, and March 2, 2018 [Member] \| ATM Agreement [Member]
Aggregate registration amount										22,600,000
BCF [Member]
Preferred stock convertible amount		$ 2,800,000								$ 2,600,000
Accrete dividend		$ 2.7451								$ 0.84
Additional deemed dividend		$ 0.5699
Long-Term Non-Qualified Options [Member] \| Director [Member]
Non-qualified stock options granted					212,528
Description of option vesting					The remaining approximately 212,528 stock options were service based options issued to the directors of the Company that vest over a one-year period on the anniversary date of the grant. All options granted have a 10-year contractual term
Long-Term Non-Qualified Options [Member] \| Employees and Consultants [Member]
Non-qualified stock options granted					1,540,263
Description of option vesting					The service condition vests one-third annually over a 3-year period with accelerated vesting of these options occurring upon applicable performance or market conditions being satisfied by certain milestone dates
Long-Term Non-Qualified Options [Member] \| Employees, Consultants and Directors [Member]
Non-qualified stock options granted					1,752,791
Description of option vesting					The service condition vests one-third annually over a 3-year period with accelerated vesting of these options occurring upon applicable performance or market conditions being satisfied by certain milestone dates
Strike price					$ 0.90
Description of Long-Term Non-Qualified Option Grants					In accordance with ASC 718, awards with service, market and performance conditions for the employees and consultants were assigned a fair value of $0.69 per share and the awards with service conditions for the directors of the Company were assigned a fair value of $0.70 per share (total value of $1.2 million). The value was determined using a Monte Carlo simulation Model
Description for accelerated vesting of options					The Company’s closing stock price is above $3 per share for 10 consecutive trading days by December 31, 2019, The Company secures at least $5 million of funding from the Department of Energy by June 30, 2019
Description for exercise of options					The weighted average years remaining of expected life was itself calculated based on a Monte Carlo simulation under which it was assumed that the options would be exercised, if vested, when the stock reached a price of $4.50, otherwise they would be exercised at expiration, if in the money
Long-Term Non-Qualified Options [Member] \| Advisory board members[Member] \| Minimum [Member] \| Consultants [Member]
Exercise price										0.9
Term of options										3 years
Long-Term Non-Qualified Options [Member] \| Advisory board members[Member] \| Maximum [Member] \| Consultants [Member]
Exercise price										43.25
Term of options										10 years
Long-Term Non-Qualified Options [Member] \| Advisory board members[Member] \| Chief Executive Officer [Member] \| Minimum [Member]
Contractual lives										3 years
Long-Term Non-Qualified Options [Member] \| Advisory board members[Member] \| Chief Executive Officer [Member] \| Maximum [Member]
Contractual lives										10 years
Long-Term Non-Qualified Options [Member] \| Advisory board members[Member] \| Directors, Officers and Employees [Member]
Non-qualified stock options granted										4,728,255
Long-Term Non-Qualified Options [Member] \| Advisory board members[Member] \| Directors, Officers and Employees [Member] \| Minimum [Member]
Exercise price										0.9
Contractual lives										1 month 6 days
Term of options										10 years
Long-Term Non-Qualified Options [Member] \| Advisory board members[Member] \| Directors, Officers and Employees [Member] \| Maximum [Member]
Exercise price										43.25
Contractual lives										9 years 4 months 24 days
Term of options										10 years
Convertible Series A Preferred Stock [Member]
Additional common shares										176,208		148,403
Preferred stock convertible amount		$ 600,000
Conversion price										$ 2.75
Common stock, shares issued, conversion of preferred stock				33,383			124,882
Preferred Stock, Shares Outstanding										785,877		813,624
Converted shares				$ 27,747
Accumulated dividend				785,877						500,000		$ 400,000
Common stock shares reserved for future issuance, Value										$ 785,877		$ 813,624
Preferred stock, shares issued										785,877		813,624
Preferred stock, liquidation preference				$ 2,600,000						$ 2,641,239		$ 2,640,862
Accrued dividend										$ 483,708		$ 407,382
Convertible Series A Preferred Stock [Member] \| General International Holdings, Inc [Member]
Common stock, shares, outstanding		255,000
Aggregate intrinsic value		$ 2,800,000
Preferred stock convertible amount		$ 3,400,000
Conversion price		$ 2.7451
Fair value per share		$ 3.315
Common stock shares reserved for future issuance, Value		$ 2,800,000
Preferred stock, shares issued		1,020,000
Rate of dividend payable in kind		7.00%
Price per share		$ 2.75
Number of shares reserved for future issuance		1,020,000
Average market price of common stock		$ 3.315
Preferred stock, liquidation preference per share		2.7451
Convertible Series B Preferred Stock [Member]
Class of Warrant or Right, Outstanding									666,664
Additional common shares										275,574		175,237
Proceeds from the issuance of the warrants and common shares										$ 3,700,000
Preferred stock convertible amount										$ 3,600,000
Conversion price									$ 1.50
Preferred Stock, Shares Outstanding										2,666,667		2,666,667
Common stock shares reserved for future issuance, Value										$ 2,666,667		$ 2,666,667
Preferred stock, shares issued										2,666,667		2,666,667
Preferred stock, liquidation preference										$ 4,413,361		$ 4,262,855
Accrued dividend										$ 413,362		$ 262,856
Rate of dividend payable in kind									7.00%
Price per share									$ 1.50	$ 2.34
Liquidation preference per share									1.50
Common stock exercise price									$ 1.875
Convertible Series B Preferred Stock [Member] \| Warrants [Member]
Exercise price									1.50
Number of shares reserved for future issuance														133,432
Maturity date									Jan. 30, 2021
Investment Bank [Member]
Monthly payments	$ 15,000
Introductory fee in percentage	7.00%
Warrants fees in percentage	5.00%
Offering price term	3 years
2015 Equity Incentive Plan [Member]
Common shares issued under incentive plan						6,300,000
New ATM agreement [Member] \| Subsequent Event [Member]
Proceeds from issuance of shares			$ 900,000							$ 7,200,000
Aggregate offering price										$ 13,500,000
Sale of stock, number of shares			1,400,000							6,400,000
2018 ATM agreement [Member] \| B. Riley FBR, Inc. [Member]
Proceeds from issuance of shares										$ 2,000,000
Sale of stock, number of shares										3,300,000
Common stock authorized to be issued under prospectus supplement, value								$ 50,000,000
2018 ATM agreement [Member] \| B. Riley FBR, Inc. [Member] \| March 28, 2019 and March 29, 2019 [Member]
Proceeds from issuance of shares										$ 200,000
Sale of stock, number of shares										300,000
Plan [Member] \| Stock Options and Restricted Stock [Member]
Common stock, shares authorized																600,000
Common stock, shares authorized increased															2,900,000	1,400,000
2006 Stock Plan and 2015 Equity Incentive Plan [Member]
Stock options outstanding										5,342,192		5,604,154
Options vested										3,673,176		3,935,138
PIK dividend [Member]
Conversion price		2.7451								$ 1.50
Fair value per share		$ 3.315								$ 2.34
Total cumulative deemed dividend										$ 200,000		$ 100,000
PIK dividend [Member] \| BCF [Member]
Total cumulative deemed dividend										$ 19,000		$ 41,000