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Consolidated Statements of Stockholder's Equity - USD ($) $ in Thousands | Total | Common Stock [Member] | Additional Paid-in Capital [Member] | Accumulated Deficit [Member] | Treasury Stock [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2016 | $ 13,891 | $ 27 | $ 29,173 | $ (14,726) | $ (580) | $ (3)
Balance (in shares) at Dec. 31, 2016 |  | 2,675,465 |  |  |  |
Net income | 117 |  |  | 117 |  |
Other comprehensive income | 38 |  |  |  |  | 38
Stock-based compensation | 88 |  | 88 |  |  |
Stock-based compensation (in shares) |  | 10,830 |  |  |  |
Issuance of shares, net of issuance costs | 10,794 | $ 20 | 10,774 |  |  |
Issuance of shares, net of issuance costs (in shares) |  | 2,006,598 |  |  |  |
Balance at Dec. 31, 2017 | $ 24,928 | $ 47 | 40,035 | (14,609) | (580) | 35
Balance (in shares) at Dec. 31, 2017 | 4,692,893 | 4,692,893 |  |  |  |
Net income | $ 1,405 |  |  | 1,405 |  |
Cumulative effect adjustment from adoption of Accounting Standards Update | ASU 2016-01 [Member] |  |  |  | 35 |  | $ (35)
Exercise of stock options | $ 27 |  | 27 |  |  |
Exercise of stock options (in shares) | 9,376 | 9,376 |  |  |  |
Repurchase of shares exercised |  | (1,200) |  |  |  |
Stock-based compensation | $ 64 |  | 64 |  |  |
Stock-based compensation (in shares) | 6,516 | 6,516 |  |  |  |
Warrant dividend exercise | $ 927 | $ 2 | 925 |  |  |
Warrant dividend exercise (in shares) |  | 123,593 |  |  |  |
Issuance costs for rights offering | (28) |  | (28) |  |  |
Balance at Dec. 31, 2018 | $ 27,323 | $ 49 | $ 41,023 | $ (13,169) | $ (580) |
Balance (in shares) at Dec. 31, 2018 | 4,831,178 | 4,831,178 |  |  |  |

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