Note E - Leases - Lease Cost (Details) - USD ($)	3 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Finance lease – amortization of ROU asset	$ 25,487	$ 25,000
Finance lease – interest on lease liability	1,736	2,223
Operating lease expense	14,634	12,384
Lease, Cost, Total	$ 41,857	$ 39,607