Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
Cash flows from operating activities:
Net loss	$ (5,675)	$ (678)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation	2,092	2,005
Bad debt provision	27	60
Stock-based compensation expense	502	385
Deferred income taxes	104	159
Change in assets and liabilities:
Receivables	(2,199)	(2,318)
Inventories	(3,430)	(285)
Income tax receivable	316	(1,488)
Accounts payable and other accrued expenses	10,692	3,843
Deferred revenue	(19)	1,134
Other, net	(3,497)	290
Net cash (used in) provided by operating activities	(1,087)	3,107
Cash flows from investing activities:
Capital expenditures	(1,222)	(1,944)
Net cash used in investing activities	(1,222)	(1,944)
Cash flows from financing activities:
Dividends paid to non-controlling interest in subsidiaries	0	(108)
Proceeds from short-term borrowings	42,975	49,298
Repayments on short-term borrowings	(40,840)	(49,524)
Payments on long-term lease obligations	(16)	(14)
Net proceeds from exercise of stock options	0	(31)
Net cash provided by (used in) financing activities	2,119	(379)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(39)	104
(Decrease) increase in cash, cash equivalents and restricted cash	(229)	888
Cash, cash equivalents and restricted cash, beginning of period	5,731	5,215
Cash, cash equivalents and restricted cash, end of period	$ 5,502	$ 6,103