Note 9 - Industry Segments (Details) - Industry Segments - Operating Information (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Information Technology
Revenue	$ 4,574	$ 4,075	$ 12,826	$ 12,201
Operating income (loss)	434	46	684	(445)
Corporate expenses	620	660	2,090	2,281
Depreciation and Amortization
Depreciation and amortization	123	141	343	373
Capital Expenditures
Capital expenditures	36	165	339	277
Information Technology [Member]
Information Technology
Revenue	1,088	1,001	3,106	2,412
Operating income (loss)	(182)	(352)	(885)	(1,576)
Depreciation and Amortization
Depreciation and amortization	70	60	152	123
Capital Expenditures
Capital expenditures	(1)	73	98	144
Industrial Products [Member]
Information Technology
Revenue	3,486	3,074	9,720	9,789
Operating income (loss)	882	696	2,622	2,215
Depreciation and Amortization
Depreciation and amortization	53	78	185	241
Capital Expenditures
Capital expenditures	36	88	237	129
Operating Segments [Member]
Information Technology
Revenue	4,574	4,075	12,826	12,201
Depreciation and Amortization
Depreciation and amortization	123	138	337	364
Capital Expenditures
Capital expenditures	35	161	335	273
Other Segments [Member]
Information Technology
Operating income (loss)	700	344	1,737	639
Corporate Segment [Member]
Information Technology
Corporate expenses	(266)	(298)	(1,053)	(1,084)
Depreciation and Amortization
Depreciation and amortization	0	3	6	9
Capital Expenditures
Capital expenditures	$ 1	$ 4	$ 4	$ 4