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Stockholders' Equity (Details Textual) |  |  |  |  |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 13, 2015 USD ($) $ / shares shares | Sep. 16, 2013 USD ($) shares | Apr. 04, 2013 USD ($) $ / shares shares | Mar. 21, 2013 shares | Feb. 27, 2013 shares | Feb. 26, 2013 shares | Dec. 31, 2011 USD ($) shares | Dec. 31, 2015 USD ($) $ / shares shares | Dec. 31, 2014 USD ($) $ / shares shares | Dec. 31, 2013 USD ($) $ / shares shares | Aug. 12, 2013 shares | Jun. 30, 2014 shares
Stockholders Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock | $ |  | $ 7,700,000 |  |  |  |  |  |  | $ 10,000,000 |  |  |
Issuance of common stock, shares |  | 1,168,939 |  |  |  |  |  |  | 2,500,000 |  |  |
Shares price per share | $ / shares |  |  |  |  |  |  |  |  | $ 4.00 |  |  |
Proceeds from sale of stock after expenses and fees | $ |  | $ 6,900,000 |  |  |  |  |  |  | $ 9,300,000 |  |  |
Placement agent fee | $ |  |  |  |  |  |  |  |  | $ 600,000 |  |  |
Warrants issued to purchase shares of common stock |  |  |  |  |  |  |  |  | 2,500,000 |  |  |
Direct offering cost | $ | $ 700,000 |  |  |  |  |  |  |  |  |  |  |
Cash | $ | $ 5,400,000 |  |  |  |  |  |  |  |  |  |  |
Common Stock, Capital Shares Reserved for Future Issuance |  |  |  |  |  |  |  |  |  |  |  | 5,000,000
Price per share | $ / shares | $ 1.90 |  |  |  |  |  |  |  |  |  |  |
Stock issued for cash | $ | $ 6,100,000 |  |  |  |  |  |  |  |  |  |  |
Exercise price | $ / shares |  |  | $ 1.00 |  |  |  |  |  | $ 5.09 |  |  |
Warrants issued to placement agent |  |  |  |  |  |  |  |  | 75,000 |  |  |
Stock purchase warrant |  |  | 40,000 |  |  |  |  |  |  |  |  |
Estimated fair value of the warrants | $ |  |  | $ 166,000 |  |  |  |  |  |  |  |  |
Proceeds from issuance of warrants | $ |  |  | $ 40,000 |  |  |  |  |  |  |  |  |
Issuance costs | $ |  | $ 800,000 |  |  |  |  |  |  | $ 700,000 |  |  |
Series B Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock conversion ratio per share of common stock |  |  |  |  |  |  |  | 132.07 |  |  |  |
Preferred stock, liquidation preference | $ / shares |  |  |  |  |  |  |  | $ 0.001 | $ 0.001 |  |  |
Conversion of shares |  |  |  | 8 | 4 |  |  | 10,962 |  |  |  |
Conversion of stock, shares issued |  |  |  | 929 | 528 |  |  |  |  |  |  |
Preferred stock voting rights description |  |  |  |  |  |  |  |  | The holders of shares of Series B Preferred stock have one vote for each share of Series B Preferred stock held by them. |  |  |
Preferred stock conversion description |  |  |  |  |  |  |  |  | Each share of Series B Preferred stock was convertible into one share of our common stock. |  |  |
Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Conversion of shares |  |  |  | 83 |  |  |  |  |  |  |  |
Conversion of stock, shares issued |  |  |  | 39,790 |  |  |  |  |  |  |  |
Thomas Eriksson [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Aggregate shares of common stock, shares | 157,893 |  |  |  |  |  |  | 157,893 |  |  |  |
Aggregate purchase price of common stock, value | $ | $ 300,000 |  |  |  |  |  |  | $ 300,000 |  |  |  |
Per Bystedt [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Aggregate shares of common stock, shares | 157,893 |  |  |  |  |  |  | 157,893 |  |  |  |
Aggregate purchase price of common stock, value | $ | $ 300,000 |  |  |  |  |  |  | $ 300,000 |  |  |  |
Mats Dahlin [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Aggregate shares of common stock, shares |  |  |  |  |  |  |  | 157,893 |  |  |  |
Aggregate purchase price of common stock, value | $ |  |  |  |  |  |  |  | $ 300,000 |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Exercise price | $ / shares |  |  |  |  |  |  |  |  |  | $ 3.13 |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Exercise price | $ / shares |  |  |  |  |  |  |  |  |  | $ 1.00 |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock, shares |  |  |  |  |  |  |  | 3,200,000 |  |  |  |
Warrants issued to purchase shares of common stock |  |  |  |  |  |  |  | 280,000 |  |  |  |
Cash | $ |  |  |  |  |  |  |  | $ 5,400,000 |  |  |  |
Common Stock, Capital Shares Reserved for Future Issuance |  |  |  |  |  |  |  |  | 5,000,000 |  |  |
Price per share | $ / shares |  |  |  |  |  |  |  | $ 1.90 |  |  |  |
Stock issued for cash | $ |  |  |  |  |  |  |  | $ 6,100,000 |  |  |  |
Common stock purchased by exercise of warrants |  |  |  |  |  |  |  | 150,234 |  |  |  |
Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase shares of common stock |  |  |  |  |  |  |  |  | 17,000 | 1,815,368 |  |
Additional warrants issued to purchase shares of common stock |  |  |  |  |  |  |  |  | 11,500 | 429,536 |  |
Exercise price | $ / shares |  |  |  |  |  |  |  |  | $ 3.13 |  |  |
Common stock purchased by exercise of warrants |  |  |  |  |  |  | 20,000 |  | 10,053 | 1,384,719 |  |
Estimated fair value of the warrants | $ |  |  |  |  |  |  | $ 75,000 |  |  |  |  |
Proceeds from issuance of warrants | $ |  |  |  |  |  |  |  |  | $ 36,000 | $ 714,000 |  |
Warrant [Member] | Phenning Holdings Ltd [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase shares of common stock |  |  |  |  |  |  |  |  |  |  | 227,661 |
Common stock purchased by exercise of warrants |  |  |  |  |  |  |  |  |  |  | 185,890 |
Warrant [Member] | David Brunton [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase shares of common stock |  |  |  |  |  | 320,000 |  |  |  |  |  |
Common stock purchased by exercise of warrants |  |  |  |  |  | 266,228 |  |  |  |  |  |
Warrant [Member] | Thomas Eriksson [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase shares of common stock |  |  |  |  |  |  |  |  |  |  | 400,000 |
Common stock purchased by exercise of warrants |  |  |  |  |  |  |  |  |  |  | 326,608 |
Warrant [Member] | Per Bystedt [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase shares of common stock |  |  |  |  |  |  |  |  |  |  | 387,773 |
Common stock purchased by exercise of warrants |  |  |  |  |  |  |  |  |  |  | 316,624 |
Warrant [Member] | Mats Dahlin [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase shares of common stock |  |  |  |  |  |  |  |  |  |  | 215,724 |
Common stock purchased by exercise of warrants |  |  |  |  |  |  |  |  |  |  | 176,143 |
Warrant [Member] | John Reardon [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase shares of common stock |  |  |  |  |  |  |  |  |  |  | 80,000 |
Common stock purchased by exercise of warrants |  |  |  |  |  |  |  |  |  |  | 65,322 |

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