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Note 6 - Accrued Liabilities (Current) (Detail) - Accrued Liabilities (USD $) In Thousands, unless otherwise specified | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2011 | Dec. 31, 2012 | Dec. 31, 2010
Accrued sales commissions and incentives | $ 395 | $ 514 |
Accrued warranty expense | 100 | 159 | 126
Accrued professional fees | 161 | 153 |
Accrued employee benefits | 296 | 319 |
Accrued interest | 13 | 87 |
Accrued taxes | 202 | 162 |
Accrued performance-related contingent consideration | 351 | 728 |
Accrued subcontractor services | 286 |  |
Accrued other expenses | 191 | 143 |
Total accrued expenses | $ 1,995 | $ 2,265 |

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