UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Operating activities
Net loss	$ (11,025)	$ (5,166)
Adjustments to reconcile net (loss) income to net cash used in operating activities:
Depreciation	707	663
Amortization of intangible assets	540	104
Stock-based compensation	414	987
Amortization of debt issue costs	49	31
Deferred income tax	0	(1,620)
Loss on sale of property and equipment	45	10
Provision for inventory reserves	283	175
Provision for credit losses	190	20
Other	(1)	117
Changes in operating assets and liabilities:
Accounts receivable	(2,579)	233
Revenue earned but not billed	(507)	1,075
Inventories	(2,238)	2,808
Prepaid expenses and other assets	(2,058)	448
Accounts payable	2,154	(3,954)
Accrued expenses and other	1,365	(2,486)
Deferred revenue, current and long-term	1,346	(40)
Net cash used in operating activities	(11,315)	(6,595)
Investing activities
Cash to fund acquisition, net of cash received	0	55
Purchases of property and equipment	(747)	(442)
Additions to patents and licenses	0	(10)
Proceeds from sale of property, plant and equipment	100	0
Net cash used in investing activities	(647)	(397)
Financing activities
Payment of long-term debt	(7)	(8)
Proceeds from revolving credit facility	0	5,000
Payments of revolving credit facility	0	0
Payments to settle employee tax withholdings on stock-based compensation	0	(2)
Proceeds from employee equity exercises	2	56
Net cash (used in) provided by financing activities	(5)	5,046
Net decrease in cash and cash equivalents	(11,967)	(1,946)
Cash and cash equivalents at beginning of period	15,992	14,466
Cash and cash equivalents at end of period	4,025	12,520
Supplemental disclosure of non-cash investing and financing activities:
Operating lease assets obtained in exchange for new operating lease liabilities	$ 363	$ 0