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