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Note 10 - Industry Segments (Detail) - Industry Segments - Operating Information (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Revenue $ 4,075 $ 4,930 $ 12,201 $ 12,631
Operating income (loss) 46 752 (445) 582
Depreciation and amortization 141 99 373 278
Capital expenditures 165 21 277 382
Corporate expenses 660 731 2,281 2,244
Information Technology [Member]
        
Revenue 1,001 2,131 2,412 3,673
Operating income (loss) (352) 484 (1,576) (361)
Depreciation and amortization 60 13 123 87
Capital expenditures 73 (23) 144 139
Industrial Products [Member]
        
Revenue 3,074 2,799 9,789 8,958
Operating income (loss) 696 482 2,215 1,752
Depreciation and amortization 78 83 241 181
Capital expenditures 88 44 129 243
Operating Segments [Member]
        
Operating income (loss) 344 966 639 1,391
Depreciation and amortization 138 96 364 268
Capital expenditures 161 21 273 381
Corporate [Member]
        
Depreciation and amortization 3 3 9 10
Capital expenditures 4   4 1
Corporate expenses $ (298) $ (214) $ (1,084) $ (809)