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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Apr. 30, 2013
Apr. 30, 2012
Operating activities    
Net income (loss) $ (4,447) $ (4,833)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:    
Depreciation and amortization 1,016 1,195
Provision for doubtful accounts 15 (35)
(Gain) loss on sale of property, plant and equipment (5) 0
Deferred income taxes (37) 5
Stock based compensation 142 260
Changes in operating assets and liabilities:    
Trade accounts receivable 853 3,670
Other receivables 32 325
Inventories (13,603) (12,120)
Income taxes (13) 16
Prepaid expenses and other current assets (275) (961)
Accounts payable and accrued liabilities 2,553 5,084
Net cash provided by (used in) operating activities (13,769) (7,394)
Investing activities    
Capital expenditures (800) (325)
Proceeds from sale of property, plant and equipment 11 0
Net cash provided by (used in) investing activities (789) (325)
Financing activities    
Proceeds from long-term debt 18,932 18,276
Repayment of long-term debt (4,053) (11,496)
Common stock issued 0 0
Cash dividend paid 0 0
Net cash provided by (used in) financing activities 14,879 6,780
Net increase (decrease) in cash 321 (939)
Cash at beginning of period 853 2,897
Cash at end of period $ 1,174 $ 1,958