UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Jan. 31, 2024	Jan. 31, 2023
Operating activities:
Net loss	$ (7,167)	$ (2,774)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Stock-based compensation	855	656
Depreciation and amortization expense	1,410	1,663
Loss on disposal of equipment	81	0
Operating lease right-of use assets	782	817
Provision for doubtful accounts	314	83
Changes in operating assets and liabilities:
Accounts receivable	(197)	1,377
Prepaid expenses and other current assets	493	482
Other long term assets	(170)	0
Accounts payable	(578)	1,430
Accrued liabilities	160	(383)
Operating lease liabilities	(857)	(775)
Deferred revenue	553	2,088
Net cash provided by (used in) operating activities	(4,321)	4,664
Investing activities:
Purchase of property and equipment	(947)	(2,112)
Net cash used in investing activities	(947)	(2,112)
Financing activities:
Proceeds from exercise of options	252	86
Repurchases of common stock	(634)	0
Net cash provided by (used in) financing activities	(382)	86
Increase (decrease) in cash	(5,650)	2,638
Cash at beginning of period	10,118	9,007
Cash at end of period	$ 4,468	$ 11,645