Condensed Balance Sheets (Unaudited) - USD ($)	Sep. 30, 2023	Mar. 31, 2023
Current assets:
Cash	$ 306,001	$ 188,966
Accounts receivable	1,024,350	920,721
Inventories, net of reserve for obsolescence of $115,000 at September 30, 2023 and $51,000 at March 31, 2023	1,642,123	1,899,202
Prepaid expenses	53,234	115,714
Total current assets	3,025,708	3,124,603
Equipment:
Furniture, fixtures and equipment, at cost	2,615,676	2,615,676
Accumulated depreciation	(2,343,640)	(2,312,400)
Equipment, net	272,036	303,276
Right of use asset	1,168,779	496,004
Patents, net of accumulated amortization of $313,419 at September 30, 2023 and $306,946 at March 31, 2023	167,448	163,133
Other assets	54,803	46,953
TOTAL ASSETS	4,688,774	4,133,969
Current liabilities:
Accounts payable	300,155	252,957
Line of credit	338,414	177,402
Secured notes	44,498	44,491
Accrued compensation	167,060	217,724
Other accrued liabilities	41,186	84,578
Accrued lease liability	272,639	353,674
Total current liabilities	1,163,952	1,130,826
Long-term liability:
Secured notes	255,704	268,512
Accrued lease liability	896,140	239,820
Total liabilities	2,315,796	1,639,158
Commitments and contingencies (Note 4)
Shareholders’ equity:
Preferred stock, no par value: 10,000,000 shares authorized; none issued and outstanding	0	0
Common stock and additional paid-in capital, no par value: 100,000,000 shares authorized; 11,769,543 issued and outstanding at September 30, 2023 and March 31, 2023	24,374,224	24,348,075
Accumulated (deficit)	(22,001,246)	(21,853,264)
Total shareholders’ equity	2,372,978	2,494,811
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 4,688,774	$ 4,133,969