Condensed Balance Sheets (Unaudited) (Parenthetical) - USD ($)	Sep. 30, 2023	Mar. 31, 2023
Statement of Financial Position [Abstract]
Inventories, reserve for obsolescence	$ 115,000	$ 51,000
Accumulated amortization	$ 313,419	$ 306,946
Preferred stock, par value	$ 0	$ 0
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0	$ 0
Common stock and additional paid-in capital, shares authorized	100,000,000	100,000,000
Common stock and additional paid-in capital, shares issued	11,769,543	11,769,543
Common stock and additional paid-in capital, shares outstanding	11,769,543	11,769,543