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Consolidated Statements of Stockholders' Equity (Deficiency) - USD ($) shares in Thousands, $ in Thousands | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | AOCI Attributable to Parent [Member] | Total
--- | --- | --- | --- | --- | ---
Balance (in shares) at Dec. 31, 2015 | 18,868 |  |  |  |
Balance at Dec. 31, 2015 | $ 77,628 | $ 9,246 | $ (69,146) | $ (28,667) | $ (10,939)
Share-based compensation expense |  | 315 |  |  | 315
Issuance of shares for incentive plan (in shares) | 99 |  |  |  |
Issuance of shares for incentive plan | $ 504 |  |  |  | 504
Vested restricted stock issued (in shares) | 50 |  |  |  |
Vested restricted stock issued | $ 315 | (315) |  |  |
Shares cancelled to pay tax liability (in shares) | (59) |  |  |  |
Shares cancelled to pay tax liability | $ (324) |  |  |  | (324)
Other comprehensive gain-pension (Note 6) |  |  |  | 6,372 | 6,372
Net income |  |  | 21,814 |  | 21,814
Balance (in shares) at Dec. 31, 2016 | 18,958 |  |  |  |
Balance at Dec. 31, 2016 | $ 78,123 | 9,246 | (47,332) | (22,295) | 17,742
Share-based compensation expense |  | 448 |  |  | 448
Issuance of shares for incentive plan (in shares) | 94 |  |  |  |
Issuance of shares for incentive plan | $ 767 |  |  |  | 767
Vested restricted stock issued (in shares) | 59 |  |  |  |
Vested restricted stock issued | $ 448 | (448) |  |  |
Shares cancelled to pay tax liability (in shares) | (71) |  |  |  |
Shares cancelled to pay tax liability | $ (754) |  |  |  | (754)
Other comprehensive gain-pension (Note 6) |  |  |  | 2,041 | 2,041
Net income |  |  | 10,900 |  | 10,900
Balance (in shares) at Dec. 31, 2017 | 19,040 |  |  |  |
Balance at Dec. 31, 2017 | $ 78,584 | $ 9,246 | $ (36,432) | $ (20,254) | $ 31,144

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