Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Narrative) (Details)

v2.4.0.8
Stockholders' Equity (Narrative) (Details) (USD $)
 12 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 30, 2012
Dec. 31, 2011
Dec. 31, 2013
Approximations [Member]
Dec. 31, 2012
Approximations [Member]
Dec. 31, 2013
Chief Executive Officer [Member]
Dec. 31, 2013
Issuance of 271,869 Non-Qualified 10 year options [Member]
Dec. 31, 2013
Issuance of 1,129,498 8-10 year options [Member]
Dec. 31, 2013
Issuance of 162,890 10 year options [Member]
Oct. 21, 2013
Registered Direct Offering and Outstanding Warrants [Member]
Oct. 31, 2013
Registered Direct Offering and Outstanding Warrants [Member]
Jul. 22, 2010
Registered Direct Offering and Outstanding Warrants [Member]
Dec. 31, 2013
Registered Direct Offering and Outstanding Warrants [Member]
Oct. 21, 2013
Registered Direct Offering and Outstanding Warrants [Member]
Approximations [Member]
Jul. 22, 2010
Registered Direct Offering and Outstanding Warrants [Member]
Approximations [Member]
Dec. 31, 2013
Minimum [Member]
Dec. 31, 2013
Minimum [Member]
Chief Executive Officer [Member]
Dec. 31, 2013
Minimum [Member]
Directors, Officers and Employees [Member]
Dec. 31, 2013
Minimum [Member]
Issuance of 1,129,498 8-10 year options [Member]
Oct. 21, 2013
Minimum [Member]
Registered Direct Offering and Outstanding Warrants [Member]
Jul. 22, 2010
Minimum [Member]
Registered Direct Offering and Outstanding Warrants [Member]
Dec. 31, 2013
Maximum [Member]
Dec. 31, 2013
Maximum [Member]
Chief Executive Officer [Member]
Dec. 31, 2013
Maximum [Member]
Directors, Officers and Employees [Member]
Dec. 31, 2013
Maximum [Member]
Issuance of 1,129,498 8-10 year options [Member]
Oct. 21, 2013
Maximum [Member]
Registered Direct Offering and Outstanding Warrants [Member]
Jul. 22, 2010
Maximum [Member]
Registered Direct Offering and Outstanding Warrants [Member]
Dec. 31, 2013
Stock Compensation Plan [Member]
Dec. 31, 2013
Maximum restricted shares granted [Member]
Dec. 31, 2012
Maximum restricted shares granted to one person [Member]
Dec. 31, 2013
Restricted Stock [Member]
Dec. 31, 2012
Restricted Stock [Member]
Dec. 31, 2011
Restricted Stock [Member]
Dec. 31, 2013
Warrants [Member]
Dec. 31, 2013
Maximum number of shares in respect to stock options [Member]
Dec. 31, 2011
Employee Stock Option [Member]
Common Stock, Shares Authorized 500,000,000 500,000,000                                                                      
Common Stock, Shares, Outstanding 15,057,243 12,526,240                                                                      
Common stock reserved for issuance 0 2,264                                                                      
Class of Warrant or Right, Outstanding 2,284,996 1,034,996                                                                      
Number of options outstanding 1,564,257 1,639,842   1,674,065                                                                  
Unvested Shares                                                               14,293 43,032 120,021      
Issued but unvested restricted stock                                                                 14,446        
Total stock and stock equivalents outstanding 18,920,789 15,246,374                                                                      
Common Stock, Capital Shares Reserved for Future Issuance                                                         2,500,000 1,250,000 166,667         266,667  
Number of options vested and expected to vest outstanding 1,530,200 1,523,536                                                                      
Stock option expense         $ 200,000 $ 700,000                                                              
Non-qualified stock options             665,088 271,869 1,129,498 162,890                                                      
Contractural lives               10 years   10 years               1 year 10 months 24 days 2 years 7 months 6 days 8 years       7 years 2 months 12 days 7 years 3 months 18 days 10 years                      
Lower Limit               $ 4.50 $ 5.42 $ 5.70                                                      
Upper Limit               $ 14.40 $ 23.85 $ 15.30                                                      
Aggregate intrinsic value 0                                                                        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Intrinsic Value $ 1.45 $ 1.41                                                                      
Unrecognized compensation costs 19,000 123,000                                                                      
Expected compensation cost         19,000                                                                
Weighted average recognition period 0 years 3 months 18 days                                                                        
Restricted stock grants estimated forfeiture amount                                 1.40%           1.60%                            
Share based compensation 329,499 975,421     300,000 1,000,000                                                              
Common Stock issued 15,057,243 12,526,240 855                                                                    
Proceeds from Issuance of Common Stock 3,958,040 1,733                         4,400,000 13,700,000                                          
Common stock and warrants sold                     2,500,000   2,069,992                                                
Common stock to be purchased in the Offering                     1,250,000   1,034,996                                                
Exercisable term                           7 years 6 months                                              
Shares of common stock to be purchased by fixed combination                     0.5   0.5                                                
Purchase price of fixed combination                     1.75   6.60                                                
Warrant exercise price                       $ 2.30 $ 9.00                                                
Maximum common stock ownership to be eligible for exercise of warrants                                         4.99% 4.99%         9.99% 9.99%                  
Net proceeds from the Offering received after payments of fees and expenses                             4,000,000                                            
Amount allocated from the Offering to common stock                             2,800,000                                            
Amount allocated from the Offering to warrants                             $ 1,200,000                                            
Volitility rate                                                                     104.00%   94.32%
Risk-free interest rate                                                                     2.01%   3.35%
Dividend yield                                                                     0.00%   0.00%
Expected term                                                                     7 years 6 months   10 years