Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2021	Jul. 31, 2020
OPERATING ACTIVITIES:
Net income	$ 16,473	$ 9,768
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	9,100	8,478
Change in fair value of acquisition-related contingent consideration	0	(212)
Deferred income taxes	(2,521)	(2,392)
Share-based compensation expense	4,378	3,609
Other operating activities, net	266	(237)
Change in operating assets and liabilities:
Accounts receivable	(22,053)	8,669
Inventories	(22,959)	(204)
Other assets	(3,023)	(420)
Operating liabilities	15,226	3,525
Net cash provided by (used in) operating activities	(5,113)	30,584
INVESTING ACTIVITIES:
Capital expenditures	(10,044)	(7,783)
Proceeds from sale or maturity of Investments	83	336
Purchases of investments	(733)	(146)
Proceeds from sale of assets	263	251
Purchases of other intangible assets	(1,964)	0
Other investing activities	(1,820)	24
Net cash used in investing activities	(14,215)	(7,318)
FINANCING ACTIVITIES:
Dividends paid	0	(9,318)
Proceeds from debt	10,815	50,150
Repayments of debt	(10,000)	(50,000)
Payments for redeemable noncontrolling interest	0	(17,853)
Tax withholding on vesting of restricted stock	(1,047)	(638)
Employee stock options exercises	(41)	(113)
Other financing activities	(212)	(208)
Net cash used in financing activities	(485)	(27,980)
Effect of Exchange Rate on Cash and Cash Equivalents	(48)	(180)
Net Increase in Cash and Cash Equivalents	(19,861)	(4,894)
Cash and Cash Equivalents, Beginning Balance	32,938	20,707
Cash and Cash Equivalents, Ending Balance	13,077	15,813
Other Noncash Income (Expense) [Abstract]
Capital expenditures converted from inventories	$ 0	$ 2,774