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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 | 9 Months Ended
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Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Stock-based compensation | $ 69 | $ 45 | $ 161 | $ 129
Employee Stock Options [Member] |  |  |  |
Stock-based compensation | 34 | 35 | 99 | 114
Director Stock Options [Member] |  |  |  |
Stock-based compensation | $ 35 | $ 10 | $ 62 | $ 15

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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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