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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jul. 31, 2012
Jul. 31, 2011
Operating activities    
Net income (loss) $ 2,220 $ (2,668)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 2,278 2,583
Provision for doubtful accounts (20) 30
(Gain) loss on sale of property, plant and equipment (1)  
Deferred income taxes 195 49
Stock based compensation 415 381
Changes in operating assets and liabilities:    
Trade accounts receivable (19,807) (24,349)
Other receivables 360 135
Inventories (9,894) (8,139)
Income taxes 43 16
Prepaid expenses and other current assets (245) (210)
Accounts payable and accrued liabilities 10,456 12,423
Net cash used in operating activities (14,000) (19,749)
Investing activities    
Capital expenditures (902) (1,340)
Proceeds from sale of property, plant and equipment 2 1
Net cash used in investing activities (900) (1,339)
Financing activities    
Proceeds from long-term debt 28,423 29,245
Repayment of long-term debt (13,075) (7,455)
Common stock issued 2  
Cash dividend paid   (710)
Net cash provided by financing activities 15,350 21,080
Net increase (decrease) in cash 450 (8)
Cash at beginning of period 2,897 1,529
Cash at end of period $ 3,347 $ 1,521