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Stock Purchase Warrants (Details 1) (Warrant [Member], USD $)
6 Months Ended
Jun. 30, 2014
Exercise Price 1.60 [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise Price $ 1.60
Warrants Outstanding 316,522
Warrants Exercisable 316,522
Weighted Average Remaining Contractual Life 3 years 3 months 25 days
Aggregate Intrinsic value $ 38,000
Exercise Price 2.22 [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise Price $ 2.22
Warrants Outstanding 517,257
Warrants Exercisable 517,257
Weighted Average Remaining Contractual Life 2 years 4 months 28 days
Aggregate Intrinsic value 0
Exercise Price 3.30 [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise Price $ 3.30
Warrants Outstanding 61,207
Warrants Exercisable 61,207
Weighted Average Remaining Contractual Life 11 months 1 day
Aggregate Intrinsic value 0
Exercise Price 3.75 [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise Price $ 3.75
Warrants Outstanding 50,000
Warrants Exercisable 50,000
Weighted Average Remaining Contractual Life 1 year 7 months 17 days
Aggregate Intrinsic value 0
Exercise Price 2.58 [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise Price $ 2.58
Warrants Outstanding 944,986
Warrants Exercisable 944,986
Weighted Average Remaining Contractual Life 2 years 6 months 29 days
Aggregate Intrinsic value $ 38,000