Note E - Leases - Lease Cost (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Finance lease – amortization of ROU asset	$ 25,610	$ 25,121	$ 51,097	$ 50,121
Finance lease – interest on lease liability	1,613	2,102	3,349	4,325
Operating lease expense	14,634	14,634	29,268	27,018
Lease, Cost, Total	$ 41,857	$ 41,857	$ 83,714	$ 81,464