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Capital Stock, Stock Plans, Warrants, and Stock Based Compensation - Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Allocated stock-based compensation | $ 179 | $ 198
Employee Stock Options [Member] |  |
Allocated stock-based compensation | 150 | 147
Director Stock Options [Member] |  |
Allocated stock-based compensation | $ 29 | $ 51

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