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Stock Purchase Warrants (Details 3)
9 Months Ended
Sep. 30, 2015
USD ($)
$ / shares
shares
Exercise Price 1.60 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise Price | $ / shares $ 1.60
Warrants Outstanding 311,834
Warrants Exercisable 311,834
Weighted Average Remaining Contractual Life 2 years 25 days
Aggregate Intrinsic value | $ $ 212,000
Exercise Price 1.75 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise Price | $ / shares $ 1.75
Warrants Outstanding 7,029.808
Warrants Exercisable 7,029,808
Weighted Average Remaining Contractual Life 4 years 14 days
Aggregate Intrinsic value | $ $ 3,656,000
Exercise Price 2.22 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise Price | $ / shares $ 2.22
Warrants Outstanding 517,257
Warrants Exercisable 517,257
Weighted Average Remaining Contractual Life 1 year 1 month 28 days
Aggregate Intrinsic value | $ $ 26,000
Exercise Price 3.75 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise Price | $ / shares $ 3.75
Warrants Outstanding 50,000
Warrants Exercisable 50,000
Weighted Average Remaining Contractual Life 4 months 17 days
Aggregate Intrinsic value | $ $ 0
Exercise Price 1.79 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise Price | $ / shares $ 1.79
Warrants Outstanding 7,908,899
Warrants Exercisable 7,908,899
Weighted Average Remaining Contractual Life 3 years 8 months 26 days
Aggregate Intrinsic value | $ $ 3,894,000