BALANCE SHEETS (December 31, 2022 Unaudited) - USD ($)	Dec. 31, 2022	Mar. 31, 2022
Current assets
Cash and cash equivalents	$ 2,029,714	$ 10,449,510
Marketable securities, short-term	10,337,621	20,839,683
Accounts receivable, net of allowance for uncollectible accounts of $15,000	2,097,274	4,704,829
Inventories	6,459,227	5,088,635
Prepaid expenses and other assets	924,161	420,520
Total current assets	21,847,997	41,503,177
Fixed assets
Machinery and equipment	10,486,161	9,739,244
Leasehold improvements	1,926,334	1,810,872
Less accumulated depreciation and amortization	11,018,857	10,943,731
Net fixed assets	1,393,638	606,385
Deferred tax assets	862,424	483,469
Marketable securities, long-term	41,167,242	24,314,211
Right-of-use asset - operating lease	459,032	560,250
Total assets	65,730,333	67,467,492
Current liabilities
Accounts payable	470,929	943,535
Accrued payroll and other	1,245,390	1,356,689
Operating lease	161,271	156,121
Total current liabilities	1,877,590	2,456,345
Operating lease	397,303	446,018
Total liabilities	2,274,893	2,902,363
Shareholders' equity
Common Stock, Value	48,308	48,308
Additional paid-in capital	19,310,703	19,256,485
Accumulated other comprehensive loss	(1,451,362)	(318,120)
Retained earnings	45,547,791	45,578,456
Total shareholders' equity	63,455,440	64,565,129
Total liabilities and shareholders' equity	$ 65,730,333	$ 67,467,492