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Stockholders' Equity (Details Textual) (USD $) | 2 Months Ended | 12 Months Ended | 47 Months Ended | 71 Months Ended
--- | --- | --- | --- | ---
May 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2011 | Dec. 31, 2013
Class of Stock [Line Items] |  |  |  |  |  |
Par value of shares issued in initial public offering |  | $ 4.00 | $ 4.00 |  |  |
Stock Issued During Period, Value, New Issues |  | $ 13,800,000 | $ 13,800,000 |  |  |
Net proceeds from Issuance of Common Stock |  | 11,200,000 |  |  |  |
Underwriter Fees |  | 1,200,000 | 1,200,000 | 300,000 |  |
Warrants Authorized For Issuance To Acquire Common Stock Shares Number | 345,000 |  | 345,000 | 136,364 |  |
Exercise Price Of Warrants | $ 5.00 | $ 5.00 | $ 5.00 | $ 2.20 |  |
Warrants Authorized For Issuance To Acquire Common Stock Value | 128,000 | 128,000 | 128,000 |  |  |
Stock Issued During Period, Value, Issued for Noncash Considerations | 110,000 |  |  | 125,000 |  |
Common Stock, Shares Authorized |  | 62,500,000 |  |  |  | 62,500,000
Issuance costs of initial public offering |  | 2,700,000 |  |  |  |
Preferred Stock, Shares Authorized |  | 2,000,000 |  |  |  | 2,000,000
Share Based Compensation Arrangement By Share Based Payment Award Purchase Price Share Minimum |  | 85.00% |  |  |  |
Common Stock, Capital Shares Reserved for Future Issuance |  | 991,300 |  |  |  | 991,300
Increase Decrease Of Share Based Compensation Arrangement By Share Based Payment Award Percentage |  | 10.00% |  |  |  |
Declining Repurchase Rights Per Share |  |  |  | $ 0.0001 | $ 0.0001 |
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized |  | 290,000 |  |  |  | 290,000
Declining Repurchase Rights Value |  |  |  | 0.0001 | 0.0001 |
Stock Issued During Period, Value, Exercise Of Warrant |  | 39,000 |  |  |  |
Stock Issued During Period Par Value New Issues Three |  |  |  | $ 2.20 | $ 2.20 |
Share Based Compensation Arrangement By Share Based Payment Award Grant Date Fair Value |  |  |  | 275,000 |  |
Excess Stock, Shares Authorized |  |  | 62,500 | 62,500 | 62,500 |
Share Based Compensation Arrangement By Share Based Payment Award Stock Grants Vested |  |  |  | 2,500 |  |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Subject To Repurchase Rights Decline |  |  |  | 60,000 |  |
General And Administrative Expense Related To Stock Grant |  | 31,000 | 96,000 |  |  | 202,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price |  | $ 4.88 |  |  |  | $ 4.88
Stock Issued During Period Shares For Services Seven |  | 30,000 |  |  |  |
Stock Issued During Period Shares For Services Six |  |  | 20,799 |  |  |
Common Stock For Services Per Share Issue Seven |  | $ 9.12 |  |  |  |
Common Stock For Services Per Share Issue Six |  | $ 5.00 | $ 4.94 |  |  |
Stock Issued During Period Value For Services Seven |  | 150,000 |  |  |  |
Stock Issued During Period Value For Services Six |  |  | 103,000 |  |  |
Stock Issued During Period, Value, Issued For Services |  |  |  |  | 4,000 |
Subsequent Event [Member] |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Warrants Authorized For Issuance To Acquire Common Stock Shares Number |  | 136,368 |  |  |  |
Exercise Price Of Warrants |  | $ 2.20 |  |  |  |
Warrants Authorized For Issuance To Acquire Common Stock Value |  | 64,000 |  |  |  |
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized |  | 659,000 |  |  |  | 659,000
Subsequent Event [Member] | Registered Direct Offering [Member] |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues |  | 812,500 |  |  |  |
Gross Proceeds From Public Stock Offering Of Common Stock |  | 6,500,000 |  |  |  |
Employee Stock Option [Member] |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Share-based Compensation Outstanding - Reserved but unissued shares under the Plan |  | 565,765 | 359,375 | 359,375 | 359,375 | 565,765
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grant One in the Period |  | 203,990 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grant Two in the Period |  | 2,400 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price |  | $ 2.44 | $ 2.20 |  |  | $ 2.44
Stock Options Granted Estimated Fair Value On Date Of Grant |  | 307,000 |  |  |  |
Allocated Share-based Compensation Expense |  | 76,000 |  |  |  |
Consultant Plan [Member] |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Share-based Compensation Outstanding - Reserved but unissued shares under the Plan |  | 75,000 |  |  |  | 75,000
Stock Issued During Period Shares Issued For Services |  | 11,250 |  |  |  |
Stock Issued During Period, Value, Issued For Services |  | 102,000 |  |  |  |
Equity Incentive Plan [Member] |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Share-based Compensation Outstanding - Reserved but unissued shares under the Plan |  | 249,736 | 480,260 | 140,625 | 140,625 | 249,736
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price |  | $ 7.33 |  |  |  | $ 7.33
Equity Incentive Plan [Member] | Subsequent Event [Member] |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Share-based Compensation Outstanding - Reserved but unissued shares under the Plan |  | 114,049 | 249,736 |  |  | 114,049
Qualified Independent Underwriter Fees [Member] |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Stock Issued During Period, Value, Issued for Noncash Considerations | 110,000 |  |  |  |  |
Underwriter Legal Fees [Member] |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Stock Issued During Period, Value, Issued for Noncash Considerations | 125,000 |  |  |  |  |
Underwriter Expenses [Member] |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Stock Issued During Period, Value, Issued for Noncash Considerations | 35,000 |  |  |  |  |
Legal Fees [Member] |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Stock Issued During Period, Value, Issued for Noncash Considerations | $ 822,000 |  |  |  |  |

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