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Consolidated Statements of Changes in Stockholders' Equity (Deficiency) - USD ($) shares in Thousands, $ in Thousands | Common Stock [Member] | Additional Paid-in Capital [Member] | Treasury Stock [Member] | Retained Earnings [Member] | Total
--- | --- | --- | --- | --- | ---
Balance (in shares) at Dec. 31, 2015 | 16,366 |  | 724 |  |
Balance at Dec. 31, 2015 | $ 2 | $ 68,329 | $ (1,531) | $ (67,400) | $ (600)
Restricted stock issuance (in shares) | 84 |  |  |  |
Restricted stock issuance |  |  |  |  |
Cancellation of restricted stock (in shares) | (80) |  |  |  |
Cancellation of restricted stock |  |  |  |  |
Treasury stock repurchased (in shares) |  |  | 24 |  |
Treasury stock repurchased |  |  | $ (1) |  | (1)
Stock-based compensation (in shares) |  |  |  |  |
Stock-based compensation |  | 193 |  |  | 193
Net income (loss) |  |  |  | (1,023) | (1,023)
Balance (in shares) at Dec. 31, 2016 | 16,370 |  | 748 |  |
Balance at Dec. 31, 2016 | $ 2 | 68,522 | $ (1,532) | (68,423) | (1,431)
Cancellation of restricted stock (in shares) | (54) |  |  |  |
Cancellation of restricted stock |  |  |  |  |
Treasury stock repurchased (in shares) |  |  | 21 |  |
Treasury stock repurchased |  |  | $ (4) |  | (4)
Stock-based compensation (in shares) |  |  |  |  |
Stock-based compensation |  | 68 |  |  | 68
Net income (loss) |  |  |  | 766 | 766
Warrants issued for debt |  | 296 |  |  | 296
Balance (in shares) at Dec. 31, 2017 | 16,316 |  | 769 |  |
Balance at Dec. 31, 2017 | $ 2 | $ 68,886 | $ (1,536) | $ (67,657) | $ (305)

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