Quarterly report pursuant to Section 13 or 15(d)

Equity (Details)

v3.4.0.3
Equity (Details)
 3 Months Ended
Mar. 31, 2016
USD ($)
$ / shares
shares
Warrants [Member]  
Summary of stock option/ warrant activities  
Number of Units,Outstanding, Beginning balance 8,954,031
Number of Units, Exercised (183,718)
Number of Units,Outstanding, Ending Balance 8,770,313
Number of Units, Exercisable 8,485,313
Weighted Average Exercise Price, Outstanding, Beginning balance | $ / shares $ 3.73
Weighted Average Exercise Price, Outstanding, Ending Balance | $ / shares 3.78
Weighted Average Exercise Price, Exercisable | $ / shares $ 3.65
Weighted Average Remaining Contractual Term (in years), Outstanding, Beginning balance 2 years 11 months 5 days
Weighted Average Remaining Contractual Term (in years), Outstanding, Ending balance 2 years 8 months 5 days
Weighted Average Remaining Contractual Term (in years), Exercisable 2 years 6 months
Aggregate Intrinsic Value, Outstanding, Beginning balance | $ $ 10,199,230
Aggregate Intrinsic Value, Outstanding, Ending Balance | $ 4,782,278
Aggregate Intrinsic Value, Exercisable | $ $ 4,782,278
Stock Options [Member]  
Summary of stock option/ warrant activities  
Number of Units,Outstanding, Beginning balance 3,971,583
Granted 244,500
Cancelled (100,000)
Number of Units,Outstanding, Ending Balance 4,116,083
Number of Units, Exercisable 2,006,628
Weighted Average Exercise Price, Outstanding, Beginning balance | $ / shares $ 4.34
Weighted Average Exercise Price, Granted | $ / shares 2.14
Weighted Average Exercise Price, Cancelled | $ / shares 1.91
Weighted Average Exercise Price, Outstanding, Ending Balance | $ / shares 4.27
Weighted Average Exercise Price, Exercisable | $ / shares $ 3.61
Weighted Average Remaining Contractual Term (in years), Outstanding, Beginning balance 8 years 4 days
Weighted Average Remaining Contractual Term (in years), Granted 9 years 10 months 17 days
Weighted Average Remaining Contractual Term (in years), Outstanding, Ending balance 7 years 10 months 6 days
Weighted Average Remaining Contractual Term (in years), Exercisable 6 years 4 months 13 days
Aggregate Intrinsic Value, Outstanding, Beginning balance | $ $ 2,964,146
Aggregate Intrinsic Value, Outstanding, Ending Balance | $ 937,786
Aggregate Intrinsic Value, Exercisable | $ $ 893,426