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Share Based Compensation - Schedule of Share-based Compensation Stock Options Plan (Details) - 6 months ended Jun. 30, 2015 - USD ($)
None in scaling factor is -9223372036854775296
Total
Restricted Stock Units (RSUs) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of Shares Subject to Issuance, Outstanding 31,807
Number of Shares Subject to Issuance, Granted 67,678
Number of Shares Subject to Issuance, Vested and Settled in Shares (44,205)
Number of Shares Subject to Issuance, Outstanding 55,280
Weighted-average Exercise Price, Outstanding $ 3.93
Weighted-average Exercise Price, Granted 1.46
Weighted-average Exercise Price, Vested and Settled in Shares $ 2.83
Weighted-average Exercise Price, Forfeited or expired  
Weighted-average Exercise Price, Outstanding $ 1.78
Outstanding-Aggregate Intrinsic Value  
Exercisable-Aggregate Intrinsic Value  
Stock Options [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of Shares Subject to Issuance, Outstanding 235,478
Number of Shares Subject to Issuance, Granted 146,757
Number of Shares Subject to Issuance, Forfeited or expired (10,874)
Number of Shares Subject to Issuance, Exercised (313)
Number of Shares Subject to Issuance, Outstanding 371,048
Number of Shares Subject to Issuance, Exercisable 139,485
Weighted-average Exercise Price, Outstanding $ 5.95
Weighted-average Exercise Price, Granted 1.46
Weighted-average Exercise Price, Forfeited or expired 20.77
Weighted-average Exercise Price, Exercised 3.12
Weighted-average Exercise Price, Outstanding 3.74
Weighted-average Exercise Price, Exercisable $ 4.70
Weighted-average Remaining Contractual Term, Outstanding Beginning 4 years 5 months 9 days
Weighted-average Remaining Contractual Term, Outstanding Ending 4 years 5 months 5 days
Weighted-average Remaining Contractual Term, Exercisable 4 years 4 months 17 days
Outstanding-Aggregate Intrinsic Value  
Exercisable-Aggregate Intrinsic Value