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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 3 Months Ended
Jul. 31, 2024
Jul. 31, 2023
Cash flows from operating activities:    
Net income $ 2,430 $ 2,042
Non-cash charges to earnings 1,266 1,462
Net changes in operating assets and liabilities (5,216) (6,305)
Net cash used in operating activities (1,520) (2,801)
Cash flows from investing activities:    
Purchase of fixed assets (327) (187)
Net cash used in investing activities (327) (187)
Cash flows from financing activities:    
Net cash used in financing activities 0 0
Net decrease in cash and cash equivalents and restricted cash (1,847) (2,988)
Cash and cash equivalents and restricted cash at beginning of period 19,265 12,049
Cash and cash equivalents and restricted cash at end of period 17,418 9,061
Cash paid during the period for:    
Interest 27 30
Income Taxes $ 7 $ 4