STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($)	3 Months Ended						9 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2023	Dec. 31, 2022
STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)
Net income	$ 4,184,422	$ 4,723,566	$ 4,403,730	$ 4,231,324	$ 6,090,373	$ 4,140,116	$ 13,311,718	$ 14,461,814
Unrealized loss from marketable securities, net of tax	748,830	(53,588)	(234,701)	332,673	(1,127,362)	(338,553)	460,541	(1,133,242)
Comprehensive income	$ 4,933,252	$ 4,669,978	$ 4,169,029	$ 4,563,997	$ 4,963,011	$ 3,801,563	$ 13,772,259	$ 13,328,572