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Consolidated Statements of Stockholders’ Equity (USD $) In Thousands, except Share data | Common Stock [Member] | Additional Paid-in Capital [Member] | Accumulated Deficit [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Nil Coupon Perpetual Loan Notes [Member] | Treasury Stock [Member] | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2009 | $ 242 | $ 125,458 | $ (47,828) | $ 269 | $ 81 |  | $ 78,222
Balance (in Shares) at Dec. 31, 2009 | 24,212,000 |  |  |  |  |  |
Net Income (Loss) |  |  | 1,753 |  |  |  | 1,753
Foreign currency translation adjustments |  |  |  | (26) |  |  | (26)
Exercise of stock options |  | 10 |  |  |  |  | 10
Exercise of stock options (in Shares) | 1,000 |  |  |  |  |  |
Repurchase of nil coupon perpetual loan notes |  |  |  |  | (5) |  | (5)
Tax benefit from stock compensation expense |  |  |  |  |  |  | 0
Stock compensation expense |  | 4,274 |  |  |  |  | 4,274
Tax effect of expired vested options |  | (318) |  |  |  |  | (318)
Balance at Dec. 31, 2010 | 242 | 129,424 | (46,075) | 243 | 76 |  | 83,910
Balance (in Shares) at Dec. 31, 2010 | 24,213,000 |  |  |  |  |  |
Net Income (Loss) |  |  | 6,148 |  |  |  | 6,148
Foreign currency translation adjustments |  |  |  | 103 |  |  | 103
Unrealized gain (loss) on marketable securities, net of tax |  |  |  | 35 |  |  | 35
Exercise of stock options | 1 | 375 |  |  |  |  | 376
Exercise of stock options (in Shares) | 81,000 |  |  |  |  |  |
Tax benefit from stock compensation expense |  | 77 |  |  |  |  | 77
Stock compensation expense |  | 2,810 |  |  |  |  | 2,810
Issuance of deferred shares of stock | 1 | (1) |  |  |  |  |
Issuance of deferred shares of stock (in Shares) | 51,000 |  |  |  |  |  |
Tax effect of expired vested options |  | (335) |  |  |  |  | (335)
Repurchases and retirement of common shares | (7) |  | (4,104) |  |  |  | (4,111)
Repurchases and retirement of common shares (in Shares) | (701,000) |  |  |  |  |  | 2,306,590
Balance at Dec. 31, 2011 | 237 | 132,350 | (44,031) | 381 | 76 |  | 89,013
Balance (in Shares) at Dec. 31, 2011 | 23,644,000 |  |  |  |  |  |
Net Income (Loss) |  |  | 2,776 |  |  |  | 2,776
Foreign currency translation adjustments |  |  |  | (765) |  |  | (765)
Unrealized gain (loss) on marketable securities, net of tax |  |  |  | (8) |  |  | (8)
Tax benefit from stock compensation expense |  |  |  |  |  |  | 0
Stock compensation expense |  | 1,248 |  |  |  |  | 1,248
Issuance of deferred shares of stock |  | 58 |  |  |  |  | 58
Tax effect of expired vested options |  | (57) |  |  |  |  | (57)
Repurchases and retirement of common shares | (16) |  | (7,873) |  |  |  | (7,889)
Repurchases and retirement of common shares (in Shares) | (1,605,000) |  |  |  |  |  |
Common shares issued upon vesting of restricted stock units |  | (101) |  |  |  |  | (101)
Common shares issued upon vesting of restricted stock units (in Shares) | 72,000 |  |  |  |  |  |
Treasury shares withheld |  |  |  |  |  | (39) | (39)
Treasury shares withheld (in Shares) | (9,000) |  |  |  |  |  |
Balance at Dec. 31, 2012 | $ 221 | $ 133,498 | $ (49,128) | $ (392) | $ 76 | $ (39) | $ 84,236
Balance (in Shares) at Dec. 31, 2012 | 22,102,000 |  |  |  |  |  |

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