Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Oct. 31, 2012	Oct. 31, 2011
Operating activities
Net income (loss)	$ 5,128	$ (5,967)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	3,337	3,823
Provision for doubtful accounts	(75)	45
(Gain) loss on sale of property, plant and equipment	(37)	1
Deferred income taxes	25	246
Stock based compensation	557	569
Changes in operating assets and liabilities:
Trade accounts receivable	(1,604)	(3,238)
Other receivables	264	55
Inventories	2,247	5,259
Income taxes	62	(10)
Prepaid expenses and other current assets	(224)	356
Accounts payable and accrued liabilities	(109)	2,282
Net cash provided by (used in) operating activities	9,571	3,421
Investing activities
Capital expenditures	(1,486)	(1,689)
Proceeds from sale of property, plant and equipment	53	0
Net cash provided by (used in) investing activities	(1,433)	(1,689)
Financing activities
Proceeds from long-term debt	28,422	29,245
Repayment of long-term debt	(38,117)	(30,347)
Common stock issued	2	0
Cash dividend paid	0	(710)
Net cash provided by (used in) financing activities	(9,693)	(1,812)
Net increase (decrease) in cash	(1,555)	(80)
Cash at beginning of period	2,897	1,529
Cash at end of period	$ 1,342	$ 1,449