XML 12 R33.htm IDEA: XBRL DOCUMENT v2.4.0.8
Share-based Compensation (Details 1) (USD $)
 3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Options outstanding beginning of period 843,442  
Number of Options, Granted 200,079  
Issuance of common stock upon exercise of stock options, for cash, shares     
Number of Options Forfeited, cancelled or expired (27)  
Options outstanding end of the period 1,043,494 843,442
Options exercisable, end of period, Number of Options 266,655  
Options vested and expected to vest, Number of Options 1,031,382  
Weighted Average exercise Price, Options Outstanding, Beginning of period $ 3.76  
Weighted average exercise price, Granted $ 1.91  
Weighted average exercise price, Exercised     
Weighted average exercise price, Forfeited, cancelled or expired $ 1,908.00  
Weighted Average exercise Price, Options Outstanding, end of period $ 3.35 $ 3.76
Weighted average exercise price, Options exercisable, end of period $ 8.42  
Weighted Average exercise Price, Options vested and expected to vest, end of period $ 3.37  
Weighted Average Remaining Contractual Term (in years) Options Outstanding 8 years 11 months 5 days 8 years 11 months 9 days
Options exercisable at March 31, 2014, Weighted Average Remaining Contractual Term (in years) 7 years 1 month 17 days  
Options vested and expected to vest, Weighted Average Remaining Contractual Term (in years) 8 years 11 months 1 day