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Note 12 - Segments and Geographic Information (Tables) | 12 Months Ended
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Dec. 31, 2012
Schedule of Segment Reporting Information, by Segment [Table Text Block] |
|  | Years ended December 31, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Solutions: |  |  |  |  |  |  |  |  |
Net sales |  | $ | 10,569 |  |  | $ | 9,563 |  |  | $ | 19,763 |
Cost of sales |  |  | 9,150 |  |  |  | 8,041 |  |  |  | 16,332 |
Gross profit |  |  | 1,419 |  |  |  | 1,522 |  |  |  | 3,431 |
Operating expenses: |  |  |  |  |  |  |  |  |  |  |  |
Sales and marketing |  |  | 1,312 |  |  |  | 1,332 |  |  |  | 1,407 |
General and administrative |  |  | 769 |  |  |  | 939 |  |  |  | 1,377 |
Loss on impairment |  |  | 672 |  |  |  | - |  |  |  | - |
Total operating expenses |  |  | 2,753 |  |  |  | 2,271 |  |  |  | 2,784 |
Segment (loss) income |  | $ | (1,334 | ) |  | $ | (749 | ) |  | $ | 647 |
Products: |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 19,268 |  |  | $ | 16,189 |  |  | $ | 15,366 |
Cost of sales |  |  | 14,450 |  |  |  | 12,540 |  |  |  | 12,394 |
Gross profit |  |  | 4,818 |  |  |  | 3,649 |  |  |  | 2,972 |
Operating expenses (income): |  |  |  |  |  |  |  |  |  |  |  |
Research and development |  |  | 368 |  |  |  | (515 | ) |  |  | (202 | )
Sales and marketing |  |  | 3,641 |  |  |  | 4,629 |  |  |  | 4,796 |
General and administrative |  |  | 261 |  |  |  | 318 |  |  |  | 293 |
Loss on impairment |  |  | - |  |  |  | - |  |  |  | 156 |
Restructuring |  |  | - |  |  |  | - |  |  |  | 26 |
Total operating expenses |  |  | 4,270 |  |  |  | 4,432 |  |  |  | 5,069 |
Segment income (loss) |  | $ | 548 |  |  | $ | (783 | ) |  | $ | (2,097 | )
Reconciliation of segment (loss) income to net loss: |  |  |  |  |  |  |  |  |  |  |  |
Segment (loss) income: |  |  |  |  |  |  |  |  |  |  |  |
Solutions |  | $ | (1,334 | ) |  | $ | (749 | ) |  | $ | 647 |
Products |  |  | 548 |  |  |  | (783 | ) |  |  | (2,097 | )
Total segment loss |  |  | (786 | ) |  |  | (1,532 | ) |  |  | (1,450 | )
Operating expenses: |  |  |  |  |  |  |  |  |  |  |  |
Sales and marketing |  |  | 743 |  |  |  | 239 |  |  |  | 212 |
General and administrative |  |  | 3,616 |  |  |  | 3,805 |  |  |  | 4,445 |
Valuation of equity instruments |  |  | - |  |  |  | 56 |  |  |  | 1,812 |
Change in estimate of contingent liabilities |  |  | (102 | ) |  |  | (411 | ) |  |  | - |
Total operating expenses |  |  | 4,257 |  |  |  | 3,689 |  |  |  | 6,469 |
Other expense |  |  | (666 | ) |  |  | (836 | ) |  |  | (592 | )
Loss before income taxes |  |  | (5,709 | ) |  |  | (6,057 | ) |  |  | (8,511 | )
Benefit from (Provision for) income taxes |  |  | - |  |  |  | 2 |  |  |  | (6 | )
Net loss |  | $ | (5,709 | ) |  | $ | (6,055 | ) |  | $ | (8,517 | )
Products-Based Business Segment Profitability [Table Text Block] |
|  | Years ended December 31, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Products segment net sales: |  |  |  |  |  |  |  |  |
Pool and commercial products |  | $ | 14,948 |  |  | $ | 11,911 |  |  | $ | 12,265 |
Government products/R&D services |  |  | 4,320 |  |  |  | 4,278 |  |  |  | 3,101 |
Total products segment net sales |  |  | 19,268 |  |  |  | 16,189 |  |  |  | 15,366 |
Products segment cost of sales: |  |  |  |  |  |  |  |  |  |  |  |
Pool and commercial products |  |  | 10,367 |  |  |  | 8,560 |  |  |  | 7,988 |
Government products/R&D services |  |  | 4,083 |  |  |  | 3,980 |  |  |  | 3,104 |
Unallocated manufacturing overhead 1 |  |  | - |  |  |  | - |  |  |  | 1,302 |
Total products segment cost of sales |  |  | 14,450 |  |  |  | 12,540 |  |  |  | 12,394 |
Products segment gross profit: |  |  |  |  |  |  |  |  |  |  |  |
Pool and commercial products |  |  | 4,581 |  |  |  | 3,351 |  |  |  | 4,277 |
Government products/R&D services |  |  | 237 |  |  |  | 298 |  |  |  | (3 | )
Unallocated manufacturing overhead 1 |  |  | - |  |  |  | - |  |  |  | (1,302 | )
Total products segment gross profit |  | $ | 4,818 |  |  | $ | 3,649 |  |  | $ | 2,972 |
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block] |
|  | Years ended December 31, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
United States Domestic |  | $ | 26,798 |  |  | $ | 21,730 |  |  | $ | 31,314 |
International |  |  | 3,039 |  |  |  | 4,022 |  |  |  | 3,815 |
Net sales |  | $ | 29,837 |  |  | $ | 25,752 |  |  | $ | 35,129 |
Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block] |
|  | December 31, |  |  |  |
|  | 2012 |  |  | 2011 |
United States |  | $ | 2,350 |  |  | $ | 3,747 |
International |  |  | 58 |  |  |  | 57 |
Long-lived assets, net |  | $ | 2,408 |  |  | $ | 3,804 |

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