Condensed Consolidated Statements of Cash Flows Unaudited - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2017	Oct. 31, 2016
Operating activities
Net income (loss)	$ 5,341	$ 27,745
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	4,041	3,794
Provision for doubtful accounts	60	68
Increase in inventory reserve	720	93
Gain on sale of property, plant and equipment	(16)	(2)
Deferred income taxes	3,387	(17,680)
Stock-based compensation	602	443
Amortization of net actuarial loss for pension plans, net of tax	444	990
Changes in operating assets and liabilities:
Trade accounts receivable	(11,265)	(9,053)
Other receivables	152	(431)
Inventories, net	(1,408)	2,948
Income taxes	73	49
Prepaid expenses and other current assets	152	(289)
Accounts payable and accrued liabilities	1,721	(1,708)
Net cash provided by (used in) operating activities	4,004	6,967
Investing activities
Capital expenditures	(12,521)	(3,239)
Proceeds from sale of property, plant and equipment	28	2
Net cash provided by (used in) investing activities	(12,493)	(3,237)
Financing activities
Proceeds from long-term debt	36,742	37,004
Repayment of long-term debt	(27,166)	(38,976)
Common stock repurchased	(339)	(264)
Net cash provided by (used in) financing activities	9,237	(2,236)
Net increase in cash	748	1,494
Cash at beginning of year	788	815
Cash at end of year	$ 1,536	$ 2,309