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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Preferred stock, par value | $ 0.01 | $ 0.01
Preferred stock, authorized | 100,000 | 100,000
Liquidation preference shares | $ 2,527 |
Common stock, par value | $ 0.01 | $ 0.01
Common stock, unlimited authorized | Unlimited | Unlimited
Common stock, issued | 11,820,057 | 6,134,506
Common stock, outstanding | 11,820,057 | 6,134,506
Series A Convertible Preferred Stock [Member] |  |
Preferred stock, authorized | 50,000 |

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