XML 20 R31.htm IDEA: XBRL DOCUMENT v3.2.0.727
Stock-Based Compensation (Details 3) - 6 months ended Jun. 30, 2015 - Warrant [Member] - $ / shares
Total
Summary of all stock option plans  
Number of Options/Warrants Outstanding, Beginning Balance 3,335,073
Warrants, Granted  
Warrants, Expired/cancelled (80,000)
Warrants, Exercised  
Number of Options/Warrants Outstanding, Ending Balance 3,255,073
Weighted Average Exercise Price, Outstanding, Beginning Balance $ 4.45
Weighted Average Exercise Price, Granted  
Weighted Average Exercise Price, Expired/cancelled $ 0.50
Weighted Average Exercise Price, Exercised  
Weighted Average Exercise Price, Outstanding, Ending Balance $ 4.55
Weighted Average Remaining Contractual Life, Outstanding and exercisable, Beginning Balance 11 months 5 days
Weighted Average Remaining Contractual Life, Outstanding and exercisable, Ending Balance 5 months 1 day