Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Oct. 31, 2016	Oct. 31, 2015
OPERATING ACTIVITIES:
Net income	$ 15,754,000	$ 2,916,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	11,526,000	13,201,000
Change in fair value of acquisition-related contingent consideration	(41,000)	(1,720,000)
Goodwill impairment loss	0	11,497,000
Long-lived asset impairment loss	87,000	3,813,000
Loss from equity investment	223,000	126,000
Deferred income taxes	(290,000)	(6,685,000)
Share-based compensation expense	2,291,000	1,826,000
Change in operating assets and liabilities:
Accounts receivable	(1,620,000)	16,144,000
Inventories	3,048,000	4,820,000
Other assets	(135,000)	228,000
Operating liabilities	7,834,000	(12,580,000)
Other operating activities, net	8,000	1,595,000
Net cash provided by operating activities	38,685,000	35,181,000
INVESTING ACTIVITIES:
Capital expenditures	(3,901,000)	(10,771,000)
Proceeds related to business acquisitions	0	351,000
Proceeds from Sale and Maturity of Investments	250,000	0
Purchase of investments	(750,000)	0
Proceeds from sale of assets	1,145,000	1,960,000
Other investing activities	(498,000)	(506,000)
Net cash used in investing activities	(3,754,000)	(8,966,000)
FINANCING ACTIVITIES:
Dividends paid	(14,148,000)	(14,648,000)
Payments for common shares repurchased	(7,702,000)	(29,338,000)
Payments of acquisition-related contingent liability	(318,000)	(773,000)
Debt issuance costs paid	0	(548,000)
Restricted stock units vested and issued	(256,000)	(458,000)
Employee stock options exercised net of shares surrendered for employee taxes	0	(85,000)
Other financing activities	0	(15,000)
Net cash used in financing activities	(22,424,000)	(45,865,000)
Effect of exchange rate changes on cash	24,000	(12,000)
Net increase (decrease) in cash and cash equivalents	12,531,000	(19,662,000)
Cash and cash equivalents at beginning of year	33,782,000	51,949,000
Cash and cash equivalents at end of period	$ 46,313,000	$ 32,287,000