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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 12 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Cash Flows from Operating Activities    
Net loss $ (6,003) $ (3,607)
Adjustments to reconcile net loss to net cash (used) provided by operating activities:    
Depreciation 2,769 2,687
Bad debt provision 92 53
Stock based compensation expense 729 634
Provision for deferred income taxes 120 1,662
Change in assets and liabilities:    
Receivables (8,464) (4,874)
Inventories (7,279) (1,188)
Income tax receivable 955 1,762
Accounts payable and other accrued expenses 11,886 4,567
Deferred revenue 406 615
Other, net (3,096) (1,399)
Net cash (used) provided by operating activities (7,885) 912
Cash Flows from Investing Activities    
Capital expenditures (1,908) (2,397)
Net cash used in investing activities (1,908) (2,397)
Cash Flows from Financing Activities    
Dividends paid to non-controlling interest in subsidiaries 0 (108)
Proceeds from short-term borrowings 59,359 62,205
Repayments on short-term borrowings (64,598) (60,096)
Proceeds from sale-leaseback transaction 15,893 0
Proceeds from long-term debt 377 0
Repayments on long-term debt 0 (19)
Net cash provided by financing activities 11,031 1,982
Effect of exchange rate changes on cash, net (75) 19
Increase in Cash, Cash Equivalents and Restricted Cash 1,163 516
Cash, Cash Equivalents and Restricted Cash at Beginning of Year 5,731 5,215
Cash, Cash Equivalents and Restricted Cash at End of Year 6,894 5,731
Supplemental Disclosure of Cash Flow Information    
Interest paid 480 65
Income taxes (refunded) paid $ 1,006 $ (1,800)