Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash Flows from Operating Activities:
Net (loss)	$ (1,360)	$ (3,626)
Adjustments to reconcile net loss to net cash (used) by operating activities:
Loan forgiveness from Paycheck Protection Program	0	(204)
Amortization of right-of-use assets	204	214
Depreciation and amortization	1	0
Asset valuation allowances	36	6
Changes in assets and liabilities:
Accounts receivable	93	(609)
Licensing receivable	(245)	0
Inventory	(1,701)	(151)
Prepaid purchases	(106)	220
Prepaid expenses and other current assets	33	(101)
Other assets	16	4
Accounts payable and other current liabilities	(117)	(30)
Right of use assets-operating	0	(403)
Short term lease liabilities	(72)	59
Long term lease liabilities	(141)	118
Due to affiliate	1	(1)
Income taxes payable	(205)	(223)
Advanced deposits	3,316	0
Deferred revenue	(61)	15
Net cash (used) by operating activities	(308)	(4,712)
Cash Flows From Investing Activities:
Proceeds from sale of short-term investments	0	25,045
Additions to property and equipment	0	(2)
Purchases of short-term investments	0	0
Net cash provided by investing activities	0	25,043
Cash Flows from Financing Activities:
Net cash provided by financing activities	0	0
Net (decrease) increase in cash and cash equivalents	(308)	20,331
Cash and cash equivalents at beginning of the year	25,576	5,245
Cash and cash equivalents at end of the year	25,268	25,576
Cash paid for:
Interest	10	11
Income taxes	$ 205	$ 222