Note 11 - Segments and Geographic Information (Details) - Summary of Reportable Segment Data (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	$ 7,890	$ 4,827	$ 19,508	$ 14,938
Cost of sales	5,332	3,897	13,354	11,887
Gross profit	2,558	930	6,154	3,051
Operating expenses:
Research and development	232	57	626	266
Selling, genereal, and administrative	2,648	2,472	7,485	7,025
Change in estimate of contingent liabilities				12
Restructuring		79		79
Loss on impairment				325
Total operating expenses	2,880	2,608	8,111	7,707
Other (expense) income	(81)	(192)	(3,120)	168
Income (loss) before income taxes	(403)	(1,870)	(5,077)	(4,488)
Benefit for income taxes			2
Net loss from continuing operations	(403)	(1,870)	(5,075)	(4,488)
Solutions Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	224	2,104	3,545	5,894
Cost of sales	309	1,888	2,822	5,186
Gross profit	(85)	216	723	708
Operating expenses:
Selling, genereal, and administrative	295	512	1,078	1,460
Loss on impairment				325
Total operating expenses	295	512	1,078	1,785
Income (loss) before income taxes	(380)	(296)	(355)	(1,077)
Products Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	7,666	2,723	15,963	9,044
Cost of sales	5,023	2,009	10,532	6,701
Gross profit	2,643	714	5,431	2,343
Operating expenses:
Research and development	63	57	181	266
Selling, genereal, and administrative	1,182	464	3,200	2,073
Restructuring		79		79
Total operating expenses	1,245	600	3,381	2,418
Income (loss) before income taxes	1,398	114	2,050	(75)
Segements Total [Member]
Operating expenses:
Income (loss) before income taxes	1,018	(182)	1,695	(1,152)
Overhead [Member]
Operating expenses:
Research and development	169		445
Selling, genereal, and administrative	1,171	1,496	3,207	3,492
Change in estimate of contingent liabilities				12
Total operating expenses	$ 1,340	$ 1,496	$ 3,652	$ 3,504