UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Operating activities
Net loss	$ (1,244)	$ (3,758)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	244	348
Amortization of intangible assets	240	248
Stock-based compensation	166	294
Amortization of debt issue costs	51	58
Gain on sale of property and equipment	0	(6)
Provision for inventory reserves	26	33
Provision for credit losses	10	40
Other	(1)	196
Changes in operating assets and liabilities:
Accounts receivable	(692)	1,507
Revenue earned but not billed	(127)	(301)
Inventories	1,065	2,156
Prepaid expenses and other assets	271	(304)
Accounts payable	(682)	(3,929)
Accrued expenses and other	227	490
Deferred revenue, current and long-term	(69)	(34)
Net cash used in operating activities	(515)	(2,962)
Investing activities
Purchases of property and equipment	(55)	(24)
Net cash used in investing activities	(55)	(24)
Financing activities
Payment of long-term debt	(88)	(3)
Proceeds from long-term debt	0	3,525
Payments of revolving credit facility	(1,750)	0
Proceeds from employee equity exercises	0	1
Net cash (used in) provided by financing activities	(1,838)	3,523
Net (decrease) increase in cash and cash equivalents	(2,408)	537
Cash and cash equivalents at beginning of period	5,972	5,155
Cash and cash equivalents at end of period	$ 3,564	$ 5,692