Capital Stock, Stock Plans and Stock Based Compensation - Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
|
| Allocated stock-based compensation | $ 36 | $ 45 | $ 84 | $ 91 |
| Employee Stock Options [Member] | ||||
| Allocated stock-based compensation | 36 | 37 | 79 | 73 |
| Director Stock Options [Member] | ||||
| Allocated stock-based compensation | $ 8 | $ 5 | $ 18 | |
| 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
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|