Income Taxes (Income Tax Expense Benefit) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Current Income Tax Expense (Benefit) [Abstract]
Federal									$ 7,135,030	$ 22,262,110	$ 16,443,592
State and local									880,838	4,206,087	1,025,645
Current income tax expense									8,015,868	26,468,197	17,469,237
Deferred Income Tax Expense (Benefit) [Abstract]
Federal									(1,430,623)	(11,892,354)	4,077,609
State and local									(671,462)	(2,916,361)	1,573,753
Deferred income tax benefit									(2,102,085)	(14,808,715)	5,651,362
Income Tax Expense (Benefit) [Abstract]
Federal									5,704,407	10,369,756	20,521,201
State and local									209,376	1,289,726	2,599,398
Income tax expenses (benefit)	$ 8,990,000	$ 619,000	$ (246,000)	$ (3,449,000)	$ 4,857,000	$ 391,000	$ 1,641,000	$ 4,770,000	$ 5,913,783	$ 11,659,482	$ 23,120,599