Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net loss	$ (24,577)	$ (21,808)
Adjustments to reconcile net loss to net cash used in operating activities:
Provision for inventory	332	2,810
Depreciation and amortization	913	719
Reduction in the carrying amount of right-of-use assets	396	425
Provision for doubtful accounts	263	0
Impairment of long-lived assets	208	0
Stock-based compensation	4,425	2,342
Interest cost	0	4
Gain on sale of equipment	(48)	(110)
Loss in joint venture	2,559	2,065
Changes in fair value of derivative instruments	169	75
Changes in operating assets and liabilities:
Accounts receivable	2,404	(1,221)
Inventory	(2,047)	(3,956)
Prepaid expenses and other current assets	613	401
Other assets	146	(504)
Accounts payable, accrued expenses, and other liabilities	300	428
Deferred revenue	10	(346)
Accrued payroll and benefits	(20)	486
Operating lease liabilities	(406)	(392)
Net cash used in operating activities	(14,360)	(18,582)
Cash flows from investing activities:
Purchases of property and equipment	(623)	(5,633)
Proceeds from sale of equipment	48	110
Investment in joint venture	(807)	(2,569)
Net cash used in investing activities	(1,382)	(8,092)
Cash flows from financing activities:
Proceeds from stock option exercise	0	709
Proceeds from issuance of common stock	9,936	16,000
Cost associated with issuance of common stock and warrants	(123)	(280)
Payment for taxes related to net share settlement of restricted stock units	(374)	(6)
Proceeds from exercise of stock warrants	10,257	0
Loan repayment	(12,000)	0
Net cash provided by financing activities	7,696	16,423
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash	(30)	(35)
Net decrease in cash, cash equivalents and restricted cash	(8,076)	(10,286)
Cash, cash equivalents and restricted cash at beginning of period	16,027	33,935
Cash, cash equivalents and restricted cash at end of period	7,951	23,649
Reconciliation of cash, cash equivalents, and restricted cash to the condensed consolidated balance sheets
Cash and cash equivalents	7,951	23,149
Restricted cash	0	500
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Total	7,951	23,649
Supplemental disclosures of cash flow information:
Interest expense paid	188	546
Supplemental non-cash investing activity:
Property and equipment in accounts payable and accrued expenses	185	0
Supplemental non-cash financing activity:
Stock warrant exercise and deemed dividend related to warrant modification	1,590	0
Deemed dividend related to issuance of Inducement Warrants	6,743	0
Rights offering and warrant repricing costs in accounts payable and accrued liabilities	409	0
Operating lease right-of-use asset obtained in exchange for operating lease liabilities	0	3,598
Remeasurement of operating lease right-of-use assets and liabilities for lease modification	$ (300)	$ 0