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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 3 Months Ended
Jul. 31, 2025
Jul. 31, 2024
Operating activities:    
Net (loss) income $ (466) $ 1,313
Adjustments to reconcile net (loss) income to net cash provided by operating activities:    
Stock-based compensation 208 258
Depreciation and amortization expense 358 449
Loss on disposal of equipment 20 0
Operating lease right-of use assets 310 289
Allowance and estimated credit losses (29) (71)
Changes in operating assets and liabilities:    
Accounts receivable 1,759 565
Prepaid expenses and other current assets 154 241
Accounts payable 411 (565)
Accrued liabilities (755) (63)
Operating lease liabilities (356) (323)
Deferred revenue (1,014) (1,782)
Net cash provided by operating activities 600 311
Investing activities:    
Purchase of property and equipment (46) 0
Net cash used in investing activities (46) 0
Financing activities:    
Proceeds from exercise of options 24 0
Finance lease payments (38) (37)
Net cash used in financing activities (14) (37)
Increase in cash 540 274
Cash at beginning of period 9,785 2,618
Cash at end of period 10,325 2,892
Non-cash investing activities:    
Equipment purchased in accounts payable $ 286 $ 0