XML 15 R48.htm IDEA: XBRL DOCUMENT v2.4.0.8
STOCK OPTION PLAN AND WARRANTS, STOCK OPTIONS (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Stock option fair value assumptions [Abstract]    
Stock based compensation expense $ 2,318,355 $ 1,547,826
Stock Options [Member]
   
Number of shares [Roll Forward]    
Outstanding at beginning of period (in shares) 7,728,877 5,645,202
Granted (in shares) 2,176,535 2,354,275
Exercised (in shares) (293,650) (230,600)
Expired and Cancelled (in shares) (28,000) (40,000)
Outstanding at end of period (in shares) 9,583,762 7,728,877
Exercisable at the end of the period (in shares) 9,536,262 7,582,022
Weighted average exercise price [Roll Forward]    
Outstanding at the beginning of period (in dollars per share) $ 1.01 $ 1.10
Granted (in dollars per share) $ 1.67 $ 0.80
Exercised (in dollars per share) $ 0.98 $ 1.09
Expired and Cancelled (in dollars per share) $ 2.18 $ 0.86
Outstanding at end of period (in dollars per share) $ 1.16 $ 1.01
Exercisable at end of the period (in dollars per share) $ 1.17 $ 1.03
Additional Disclosures [Abstract]    
Aggregate intrinsic value 0  
Weighted average remaining contractual term 3 years 3 months 18 days  
Stock option fair value assumptions [Abstract]    
Weighted average fair value per option granted (in dollars per share) $ 1.04 $ 0.38
Risk free interest rate minimum (in hundredths) 0.65% 0.34%
Risk free interest rate maximum (in hundredths) 0.81% 0.42%
Expected dividend yield (in hundredths) 0.00% 0.00%
Expected lives 2 years 8 months 10 days 2 years 8 months 10 days
Expected volatility rate minimum (in hundredths) 99.79% 97.72%
Expected volatility rate maximum (in hundredths) 108.00% 103.00%
Expiration from date of grant P5Y P5Y
Shares available for issuance under the Plan (in shares) 8,416,238 10,271,123
Unrecognized stock based compensation to be recognized 22,103 77,595
Stock Options [Member] | Employees [Member]
   
Number of shares [Roll Forward]    
Granted (in shares) 2,176,535 2,324,275
Stock option fair value assumptions [Abstract]    
Stock based compensation expense $ 2,318,355 $ 96,599
Percentage of options that vested at grant date (in hundredths)   25.00%
Award vesting percentage on 90 days subsequent to the grant date (in hundredths)   25.00%
Award vesting percentage on 180 days subsequent to the grant date (in hundredths)   25.00%
Award vesting percentage on 270 days subsequent to the grant date (in hundredths)   25.00%