Earnings Per Share (Details) - USD ($)	3 Months Ended								12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Income (Numerator)
Net income	$ 35,058,000	$ 16,665,000	$ 16,082,000	$ 9,539,000	$ 24,632,000	$ 5,806,000	$ (637,000)	$ (8,566,000)	$ 77,345,227	$ 21,231,990	$ 53,919,837
Shares (Denominator)
Income available to common shareholders (in shares)									5,748,554	5,749,492	6,072,170
Effect of dilutive securities options and restricted stock (in shares)									113,346	149,178	291,896
Income available to common shareholders, diluted (in shares)									5,861,900	5,898,670	6,364,066
Basic (in dollars per share)	$ 6.19	$ 2.89	$ 2.78	$ 1.65	$ 4.27	$ 1.01	$ (0.11)	$ (1.49)	$ 13.45	$ 3.69	$ 8.88
Diluted (in dollars per share)	$ 6.09	$ 2.84	$ 2.71	$ 1.62	$ 4.20	$ 0.99	$ (0.11)	$ (1.49)	$ 13.19	$ 3.60	$ 8.47
Antidilutive securities (in shares)									293,695	333,072	412,015