UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Operating activities
Net loss	$ (8,890)	$ (13,281)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	959	1,067
Amortization of intangible assets	754	813
Stock-based compensation	822	681
Amortization of debt issue costs	155	74
Loss on sale of property and equipment	91	84
Provision for inventory reserves	115	325
Provision for credit losses	65	170
Other	197	1
Changes in operating assets and liabilities:
Accounts receivable	1,723	(2,156)
Revenue earned but not billed	2,353	(372)
Inventories	4,462	(2,963)
Prepaid expenses and other assets	1,792	(1,189)
Accounts payable	(4,938)	5,506
Accrued expenses and other	1,668	1,337
Deferred revenue, current and long-term	(30)	(364)
Net cash provided by (used in) operating activities	1,298	(10,267)
Investing activities
Purchases of property and equipment	(48)	(868)
Proceeds from sale of property, plant and equipment	189	118
Additions to patents and licenses	(7)	0
Net cash provided by (used in) investing activities	134	(750)
Financing activities
Payment of long-term debt	(116)	(11)
Proceeds from long-term debt	3,525	0
Payments of revolving credit facility	(2,500)	0
Proceeds from employee equity exercises	1	3
Net cash provided by (used in) financing activities	910	(8)
Net increase (decrease) in cash and cash equivalents	2,342	(11,025)
Cash and cash equivalents at beginning of period	5,155	15,992
Cash and cash equivalents at end of period	7,497	4,967
Supplemental disclosure of non-cash investing and financing activities:
Operating lease assets obtained in exchange for new operating lease liabilities	$ 0	$ 363