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UNAUDITED QUARTERLY RESULTS OF OPERATIONS (Details) (USD $)
 3 Months Ended 12 Months Ended
Jan. 31, 2014
Oct. 31, 2013
Jul. 31, 2013
Apr. 30, 2013
Jan. 31, 2013
Oct. 31, 2012
Jul. 31, 2012
Apr. 30, 2012
Jan. 31, 2014
Jan. 31, 2013
Quarterly Financial Data [Line Items]                    
Net sales from continuing operations $ 22,222,000 $ 22,787,000 $ 24,639,000 $ 21,737,000 $ 23,399,000 $ 24,239,000 $ 23,499,000 $ 23,981,000 $ 91,384,695 $ 95,117,539
Gross profit from continuing operations 6,249,000 5,042,000 7,462,000 6,080,000 5,598,000 7,287,000 7,131,000 7,311,000 24,833,341 27,327,433
(Loss) earnings from continuing operations (1,611,000) (1,835,000) 4,171,000 (844,000) (17,572,000) 283,000 1,644,000 (10,121,000) (119,501) (25,766,962)
(Loss) earnings from discontinued operations 0 0 0 0 (522,000) 0 0 0 0 (521,707)
Net income (loss) $ (1,611,000) $ (1,835,000) $ 4,171,000 $ (844,000) $ (18,094,000) $ 283,000 $ 1,644,000 $ (10,121,000) $ (119,501) $ (26,288,669)
Basic net earnings (loss) per share:                    
Continuing operations (in dollars per share) $ (0.27) $ (0.31) $ 0.75 $ (0.16) $ (3.30) $ 0.05 $ 0.31 $ (1.94) $ (0.02) $ (4.87)
Discontinued operations (in dollars per share) $ 0 $ 0 $ 0 $ 0 $ (0.10) $ 0 $ 0 $ 0 $ 0 $ (0.10)
Total (in dollars per share) $ (0.27) $ (0.31) $ 0.75 $ (0.16) $ (3.40) $ 0.05 $ 0.31 $ (1.94) $ (0.02) $ (4.97)
Diluted net earnings (loss) per share:                    
Continuing operations (in dollars per share) $ (0.27) $ (0.31) $ 0.74 $ (0.16) $ (3.30) $ 0.05 $ 0.30 $ (1.94) $ (0.02) $ (4.87)
Discontinued operations (in dollars per share) $ 0 $ 0 $ 0 $ 0 $ (0.10) $ 0 $ 0 $ 0 $ 0 $ (0.10)
Total (in dollars per share) $ (0.27) $ (0.31) $ 0.74 $ (0.16) $ (3.40) $ 0.05 $ 0.30 $ (1.94) $ (0.02) $ (4.97)