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Accrued Expenses Schedule of Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2011
Payables and Accruals [Abstract] |
Schedule of Accrued Liabilities [Table Text Block] | Accrued expenses at December 31, 2011 and 2010, consisted of the following (in thousands):
| 2011 |  | 2010
Payroll taxes | $ | 1,786 |  |  | $ | 1,234 |
Payroll | 2,075 |  |  | 3,708 |
Bonuses | 2,736 |  |  | 2,387 |
Commissions | 912 |  |  | 818 |
Vacation | 4,362 |  |  | 3,792 |
Royalties | 1,310 |  |  | 1,104 |
Value-added tax | 1,018 |  |  | 874 |
Other accrued expenses | 5,998 |  |  | 4,973 |
Total | $ | 20,197 |  |  | $ | 18,890 |

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- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
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