UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating activities
Net (loss) income	$ (29,225)	$ 7,271
Adjustments to reconcile net (loss) income to net cash used in operating activities:
Depreciation	974	936
Amortization of intangible assets	373	158
Stock-based compensation	1,435	591
Amortization of debt issue costs	47	46
Deferred income tax	17,804	2,340
Gain (loss) on sale of property and equipment	10	(77)
Provision for inventory reserves	407	426
Provision for bad debts	25	8
Other	150	30
Changes in operating assets and liabilities:
Accounts receivable	(431)	1,276
Revenue earned but not billed	(321)	(930)
Inventories	1,001	383
Prepaid expenses and other assets	609	(1,292)
Accounts payable	2,418	(5,231)
Accrued expenses and other	(566)	(3,651)
Deferred revenue, current and long-term	42	31
Net cash (used in) provided by operating activities	(5,248)	(2,315)
Investing activities
Cash to fund acquisition, net of cash received	(5,508)	(3,697)
Cash paid for investment	0	(500)
Purchases of property and equipment	(573)	(465)
Additions to patents and licenses	(9)	(8)
Proceeds from sale of property, plant and equipment	0	122
Net cash used in investing activities	(6,090)	(4,548)
Financing activities
Payment of long-term debt	(12)	(11)
Proceeds from revolving credit facility	5,000	0
Payments of revolving credit facility	0	0
Payments to settle employee tax withholdings on stock-based compensation	(2)	(7)
Deferred financing costs	(29)	(4)
Proceeds from employee equity exercises	57	126
Net cash provided by financing activities	5,014	104
Net decrease in cash and cash equivalents	(6,324)	(2,129)
Cash and cash equivalents at beginning of period	14,466	19,393
Cash and cash equivalents at end of period	8,142	17,264
Supplemental disclosure of non-cash investing and financing activities:
Issuance of common stock in connection with acquisition	$ 770	$ 0