CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)	9 Months Ended
	Oct. 31, 2020	Oct. 31, 2019
Cash flows from operating activities:
Net income	$ 27,237,000	$ 2,076,000
Adjustments to reconcile net income to net cash provided by (used in) operating activities
Provision for doubtful accounts	315,000	168,000
Deferred income taxes	3,194,000	667,000
Depreciation and amortization	1,425,000	1,267,000
Stock based and restricted stock compensation	1,245,000	(583,000)
Gain (loss) on disposal of property and equipment	5,000	(2,000)
Non-cash operating lease expense	267,000	797,000
(Increase) decrease in operating assets
Accounts receivable	(9,249,000)	(1,257,000)
Inventories	(808,000)	(5,584,000)
Prepaid VAT and other taxes	(10,000)	162,000
Other current assets	(484,000)	(355,000)
Accounts payable	810,000	67,000
Accrued expenses and other liabilities	4,365,000	517,000
Operating lease liabilities	(286,000)	(783,000)
Net cash provided by (used in) operating activities	28,026,000	(2,843,000)
Cash flows from investing activities:
Purchases of property and equipment	(1,325,000)	(689,000)
Cash flows from financing activities:
Loan repayments, short-term	(1,319,000)	(124,000)
Loan borrowings, short-term	158,000	0
UK borrowings under line of credit facility, net	0	491,000
Purchase of Treasury Stock under stock repurchase program	0	(97,000)
Shares returned to pay employee taxes under restricted stock program	(79,000)	(5,000)
Net cash (used in) provided by financing activities	(1,240,000)	265,000
Effect of exchange rate changes on cash and cash equivalents	119,000	(91,000)
Net increase (decrease) in cash and cash equivalents	25,580,000	(3,358,000)
Cash and cash equivalents at beginning of period	14,606,000	12,831,000
Cash and cash equivalents at end of period	40,186,000	9,473,000
Supplemental disclosure of cash flow information:
Cash paid for interest	22,000	98,000
Cash paid for taxes	2,376,000	1,202,000
Noncash investing and financing activities
Leased assets obtained in exchange for operating lease liabilities	$ 870,000	$ 3,218,000