Note 10 - Industry Segments (Detail) - Industry Segments - Operating Information (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenue	$ 4,032	$ 4,157	$ 8,126	$ 7,701
Operating income (loss)	(238)	189	(491)	(170)
Depreciation and amortization	95	119	233	180
Capital expenditures	41	171	112	361
Corporate expenses	751	595	1,622	1,513
Information Technology [Member]
Revenue	705	991	1,411	1,541
Operating income (loss)	(583)	(291)	(1,223)	(844)
Depreciation and amortization	11	34	63	74
Capital expenditures	11	35	72	161
Industrial Products [Member]
Revenue	3,327	3,166	6,715	6,160
Operating income (loss)	685	687	1,519	1,269
Depreciation and amortization	81	82	164	100
Capital expenditures	30	136	40	199
Operating Segments [Member]
Operating income (loss)	102	396	296	425
Depreciation and amortization	92	116	227	174
Capital expenditures	41	171	112	360
Corporate [Member]
Depreciation and amortization	3	3	6	6
Capital expenditures				1
Corporate expenses	$ (340)	$ (207)	$ (787)	$ (595)