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 |
3 Months Ended | |
|---|---|---|
Mar. 31, 2019 |
Mar. 31, 2018 |
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| Allocated stock-based compensation | $ 48 | $ 46 |
| Employee Stock Options [Member] | ||
| Allocated stock-based compensation | 43 | 10 |
| Director Stock Options [Member] | ||
| Allocated stock-based compensation | $ 5 | $ 36 |
| X | ||||||||||
- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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