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Note 6 - Accrued Liabilities (Current) (Tables) | 12 Months Ended
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Dec. 31, 2012
Schedule of Accrued Liabilities [Table Text Block] |
|  | December 31, |
|  | 2012 |  |  | 2011 |
Accrued sales commissions and incentives |  | $ | 514 |  |  | $ | 395 |
Accrued warranty expense |  |  | 159 |  |  |  | 100 |
Accrued professional fees |  |  | 153 |  |  |  | 161 |
Accrued employee benefits |  |  | 319 |  |  |  | 296 |
Accrued interest |  |  | 87 |  |  |  | 13 |
Accrued taxes |  |  | 162 |  |  |  | 202 |
Accrued performance-related contingent consideration |  |  | 728 |  |  |  | 351 |
Accrued subcontractor services |  |  | - |  |  |  | 286 |
Accrued other expenses |  |  | 143 |  |  |  | 191 |
Total accrued expenses |  | $ | 2,265 |  |  | $ | 1,995 |

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- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration