Consolidated Condensed Statements of Cash Flows $ in Thousands	3 Months Ended	9 Months Ended
	Oct. 31, 2020 USD ($)	Oct. 31, 2021 USD ($)	Oct. 31, 2020 USD ($)
Statement of Cash Flows [Abstract]
Net income including noncontrolling interests	$ 11,059	$ 35,153	$ 596
Net income from discontinued operations, net of tax	(253)	4,263	729
Net income (loss) from continuing operations	11,312	30,890	(133)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation		13,505	13,604
Amortization of operating lease right-of-use assets		4,128	3,982
Income from equity method investments	(1,152)	(2,763)	(168)
Dividends received from equity method investee		1,504	2,506
Interest income from investments		(36)	(200)
Deferred income tax		5,840	(356)
Stock based compensation expense	42	1,100	122
Gain on sale of property and equipment – net		(1)	(58)
Changes in assets and liabilities:
Accounts receivable		(20,313)	473
Inventories		7,673	14,000
Refundable income taxes		(332)	(130)
Other assets		1,912	(611)
Accounts payable, trade		10,916	(4,361)
Other liabilities		2,776	(4,966)
Net cash provided by operating activities from continuing operations		56,799	23,704
Net cash used in operating activities from discontinued operations		(6,368)	(2,205)
Net cash provided by operating activities		50,431	21,499
Cash flows from investing activities:
Capital expenditures		(4,245)	(6,610)
Purchase of short-term investments		(67,412)	(68,225)
Sale of short-term investments		82,022	65,282
Other		40	(474)
Net cash provided by (used in) investing activities		10,405	(10,027)
Cash flows from financing activities:
Treasury stock acquired		(6,627)	(18,089)
Payments to noncontrolling interests holders		(1,515)	(283)
Net cash used in financing activities from continuing operations		(8,142)	(18,372)
Net cash provided by financing activities from discontinued operations		280	88
Net cash used in financing activities		(7,862)	(18,284)
Net increase (decrease) in cash, cash equivalents and restricted cash		52,974	(6,812)
Cash, cash equivalents and restricted cash, beginning of period		146,158	180,771
Cash, cash equivalents and restricted cash, end of period	173,959	199,132	173,959
Non cash investing activities – Accrued capital expenditures		34	198
Non cash financing activities – Stock awards accrued		972
Non cash financing activities – Stock awards issued		100	240
Right-of-use assets acquired and liabilities incurred upon lease execution		3,267	1,863
Cash and cash equivalents	173,075	197,395	173,075
Restricted cash	884	1,737	884
Total cash, cash equivalents and restricted cash	$ 173,959	$ 199,132	$ 173,959