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Note 9 - Segments and Geographic Information (Details) - Summary of Reportable Segment Data (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]    
Net sales $ 4,919 $ 4,458
Cost of sales 3,497 3,575
Gross profit 1,422 883
Research and development 191 37
Selling, genereal, and administrative 2,304 2,082
Total operating expenses 2,495 2,119
Other expense (2,978) (220)
Income (loss) before income taxes (4,051) (1,456)
Benefit for income taxes 1  
Net loss from continuing operations (4,050) (1,456)
Solutions Segment [Member]
   
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]    
Net sales 2,188 1,807
Cost of sales 1,565 1,523
Gross profit 623 284
Selling, genereal, and administrative 431 472
Income (loss) before income taxes 192 (188)
Products Segment [Member]
   
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]    
Net sales 2,731 2,651
Cost of sales 1,932 2,052
Gross profit 799 599
Research and development 63 37
Selling, genereal, and administrative 795 584
Total operating expenses 858 621
Income (loss) before income taxes (59) (22)
Segements Total [Member]
   
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]    
Income (loss) before income taxes 133 (210)
Overhead [Member]
   
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]    
Research and development 128  
Selling, genereal, and administrative 1,078 1,026
Total operating expenses $ 1,206 $ 1,026