CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)	9 Months Ended
	Oct. 31, 2022	Oct. 31, 2021
Cash flows from operating activities:
Net income	$ 1,690	$ 10,866
Adjustments to reconcile net income to net cash (used in) provided by operating activities
Provision for doubtful accounts	92	(86)
Deferred income taxes	1,788	585
Depreciation and amortization	1,370	1,470
Stock based and restricted stock compensation	1,141	1,025
(Gain) loss on disposal of property and equipment	(4)	51
Equity in loss of equity investment	252	0
Non-cash operating lease expense	0	229
(Increase) decrease in operating assets
Accounts receivable	(2,197)	4,792
Inventories	(10,257)	(3,502)
Prepaid VAT and other taxes	(106)	(979)
Other assets	22	1,020
Increase (decrease) in operating liabilities
Accounts payable	613	(965)
Accrued expenses and other liabilities	499	(1,454)
Operating lease liabilities	(89)	(461)
Net cash (used in) provided by operating activities	(5,230)	12,591
Cash flows from investing activities:
Purchases of property and equipment	(1,273)	(581)
Investments	(3,061)	(2,783)
Net cash (used in) investing activities:	(4,334)	(3,364)
Cash flows from financing activities:
Purchase of treasury stock under stock repurchase program	(5,440)	(5,887)
Shares returned to pay employee taxes under restricted stock program	(805)	(622)
Net cash (used in) financing activities	(6,245)	(6,509)
Effect of exchange rate changes on cash and cash equivalents	(1,961)	219
Net increase (decrease) in cash and cash equivalents	(17,770)	2,937
Cash and cash equivalents at beginning of period	52,719	52,596
Cash and cash equivalents at end of period	34,949	55,533
Supplemental disclosure of cash flow information:
Cash paid for interest	25	7
Cash paid for taxes	2,614	4,217
Noncash investing and financing activities
Leased assets obtained in exchange for operating lease liabilities	$ 34	$ 3,238