Note 8 - Industry Segments (Details) - Industry Segments – Operating Information (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]
Revenue	$ 3,670	$ 4,086
Operating income (loss)	(766)	(85)
Corporate expenses	919	730
Depreciation and amortization	91	117
Capital expenditures	86	179
Information Technology [Member]
Segment Reporting Information [Line Items]
Revenue	1,106	837
Operating income (loss)	(368)	(510)
Depreciation and amortization	29	39
Capital expenditures	62	29
Industrial Products [Member]
Segment Reporting Information [Line Items]
Revenue	2,564	3,249
Operating income (loss)	47	888
Depreciation and amortization	59	75
Capital expenditures	24	150
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income (loss)	(321)	378
Depreciation and amortization	88	114
Capital expenditures	86	179
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Corporate expenses	(445)	(463)
Depreciation and amortization	$ 3	$ 3