Note 7 - Industry Segments (Detail) - Industry Segments - Operating Information (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Revenue	$ 4,086	$ 4,094
Operating income (loss)	(85)	(254)
Depreciation and amortization	117	138
Capital expenditures	179	71
Corporate expenses	829	871
Information Technology [Member]
Revenue	837	706
Operating income (loss)	(510)	(640)
Depreciation and amortization	39	52
Capital expenditures	29	61
Industrial Products [Member]
Revenue	3,249	3,388
Operating income (loss)	888	833
Depreciation and amortization	75	82
Capital expenditures	150	10
Operating Segments [Member]
Operating income (loss)	378	193
Depreciation and amortization	114	134
Capital expenditures	179	71
Corporate [Member]
Depreciation and amortization	3	4
Corporate expenses	$ (463)	$ (447)