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Note 10 - Segments and Geographic Information (Details) - Summary of Reportable Segment Data (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Net sales | $ 6,699 | $ 5,653 | $ 11,618 | $ 10,111
Cost of sales | 4,525 | 4,415 | 8,022 | 7,990
Gross profit | 2,174 | 1,238 | 3,596 | 2,121
Operating expenses: |  |  |  |
Research and development | 203 | 172 | 394 | 209
Selling, genereal, and administrative | 2,533 | 2,471 | 4,837 | 4,553
Loss on impairment |  | 325 |  | 325
Total operating expenses | 2,736 | 2,980 | 5,231 | 5,099
Reconciliation of segment income (loss) to net loss: |  |  |  |
Change in estimate of contingent liabilities |  | 12 |  | 12
Other (expense) income | (61) | 580 | (3,039) | 360
Income (loss) before income taxes | (623) | (1,162) | (4,674) | (2,618)
Benefit (provision) for income taxes | 1 |  | 2 |
Net loss from continuing operations | (622) | (1,162) | (4,672) | (2,618)
Solutions Segment [Member] |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Net sales | 1,133 | 1,983 | 3,321 | 3,790
Cost of sales | 948 | 1,775 | 2,513 | 3,298
Gross profit | 185 | 208 | 808 | 492
Operating expenses: |  |  |  |
Selling, genereal, and administrative | 352 | 476 | 783 | 948
Loss on impairment |  | 325 |  | 325
Total operating expenses | 352 | 801 | 783 | 1,273
Reconciliation of segment income (loss) to net loss: |  |  |  |
Income (loss) before income taxes | (167) | (593) | 25 | (781)
Products Segment [Member] |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Net sales | 5,566 | 3,670 | 8,297 | 6,321
Cost of sales | 3,577 | 2,640 | 5,509 | 4,692
Gross profit | 1,989 | 1,030 | 2,788 | 1,629
Operating expenses: |  |  |  |
Research and development | 55 | 172 | 118 | 209
Selling, genereal, and administrative | 1,223 | 1,025 | 2,018 | 1,609
Total operating expenses | 1,278 | 1,197 | 2,136 | 1,818
Reconciliation of segment income (loss) to net loss: |  |  |  |
Income (loss) before income taxes | 711 | (167) | 652 | (189)
Segements Total [Member] |  |  |  |
Reconciliation of segment income (loss) to net loss: |  |  |  |
Income (loss) before income taxes | 544 | (760) | 677 | (970)
Overhead [Member] |  |  |  |
Operating expenses: |  |  |  |
Research and development | 148 |  | 276 |
Selling, genereal, and administrative | 958 | 970 | 2,036 | 1,996
Total operating expenses | 1,106 | 982 | 2,312 | 2,008
Reconciliation of segment income (loss) to net loss: |  |  |  |
Change in estimate of contingent liabilities |  | $ 12 |  | $ 12

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