Summary Cash Flow classfications - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2019
Changes in operating assets and liabilities:
Accounts receivable	$ 12,045	$ (9,118)	$ 3,938
Inventories	(1,151)	891	1,092
Prepaid expenses and other assets	(340)	2,092	(2,440)
Accounts payable	3,408	5,493	(4,517)
Accrued and other liabilities	4,297	(1,894)	3,480
Change in operating assets and liabilities, net	18,259	(2,536)	1,553
Cash paid during the year for income taxes	4,771	4,377	8,225
Interest paid	281	267	227
Significant non-cash transactions:
Capital expenditures and other intangibles included in accounts payable and other liabilities	895	740	655
Assets acquired under capital leases	0	0	38
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	435	677	0
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	1,924	5,555	0
Noncash Fixed Assets Acquired, converted from inventory	2,930	0	0
Redeemed Noncontrolling Interest not paid-current liability
Other Significant Noncash Transactions [Line Items]
Redeemable noncontrolling interest in other liabilities	5,333	0	0
Redeemed Noncontrolling Interest not paid, Long Term Other LIability
Other Significant Noncash Transactions [Line Items]
Redeemable noncontrolling interest in other liabilities	$ 0	$ 2,224	$ 0