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v3.3.1.900

Stockholders' Equity (Details Textual) - USD ($) | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Apr. 29, 2015 | Dec. 31, 2015 | Dec. 31, 2014 | Nov. 13, 2015 | Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value |  | $ 658,000 | $ 87,000 |  |
Proceeds from Issuance of Common Stock |  | 32,439,313 | 0 |  |
Payments of Stock Issuance Costs |  | $ 0 | $ 271,183 |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  | $ 63.96 |
Class of Warrant or Right, Redemption Price of Warrants or Rights |  | $ 0.001 |  |  |
Class of Warrant or Right, Date from which Warrants or Rights Exercisable |  | Nov. 12, 2018 |  |  |
Common Stock [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |  | 98,574 | 20,205 |  |
Stock Issued During Period, Shares, New Issues | 5,347,500 | 5,347,500 |  |  |
Accredited Investors [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Proceeds from Issuance of Common Stock | $ 32,400,000 |  |  |  |
Payments of Stock Issuance Costs | $ 2,300,000 |  |  |  |
Warrant [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  |  | $ 12.21
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number |  |  |  |  | 20,467
2014 Equity Incentive Plans [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |  | 1,271,906 | 1,000,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant |  | 727,687 |  |  |
2011 Equity Incentive Plan [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant |  |  | 271,906 |  |

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