Note 15 - Industry Segments (Details) - Industry Segments - Operating Information (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Information Technology
Revenue	$ 16,318,000	$ 16,530,000
Operating income	444,000	(164,000)
Depreciation and amortization	435,000	523,000
Capital expenditures	559,000	399,000
Identifiable assets	10,627,000	9,936,000
Corporate expenses	2,680,000	3,017,000
Information Technology [Member]
Information Technology
Revenue	4,202,000	3,721,000
Operating income	(1,290,000)	(1,725,000)
Depreciation and amortization	189,000	186,000
Capital expenditures	174,000	133,000
Identifiable assets	1,725,000	1,712,000
Industrial Products [Member]
Information Technology
Revenue	12,116,000	12,809,000
Operating income	3,074,000	2,945,000
Depreciation and amortization	240,000	324,000
Capital expenditures	380,000	261,000
Identifiable assets	6,716,000	6,250,000
Operating Segments [Member]
Information Technology
Operating income	1,784,000	1,220,000
Depreciation and amortization	429,000	510,000
Capital expenditures	554,000	394,000
Identifiable assets	8,441,000	7,962,000
Corporate Segment [Member]
Information Technology
Depreciation and amortization	6,000	13,000
Capital expenditures	5,000	5,000
Identifiable assets	2,186,000	1,974,000
Corporate expenses	$ (1,340,000)	$ (1,384,000)