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Condensed Consolidated Statements of Operations Unaudited - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended
Apr. 30, 2016
Apr. 30, 2015
Income Statement [Abstract]    
Net sales $ 20,827 $ 23,048
Costs of goods sold 12,764 14,854
Gross profit 8,063 8,194
Selling, general and administrative expenses 10,909 11,043
Gain on sale of property, plant & equipment (1) (8)
Operating loss (2,845) (2,841)
Interest expense, net 264 298
Loss before income taxes (3,109) (3,139)
Income tax expense 29 39
Net loss $ (3,138) $ (3,178)
Net income (loss) per common share:    
Basic (usd per share) [1] $ (0.21) $ (0.21)
Diluted (usd per share) [1] $ (0.21) $ (0.21)
Weighted average shares outstanding:    
Basic (shares) [1] 14,971 14,824
Diluted (shares) [1] 14,971 14,824
[1] Net loss per share was calculated based on basic shares outstanding due to the anti-dilutive effect on the inclusion of common stock equivalent shares.