CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)	Total	Impact of ASC 326 adoption	Common Stock	Additional Paid-in Capital	Retained Earnings	Retained Earnings Impact of ASC 326 adoption
Beginning balance (shares) at Mar. 31, 2021			6,805,294
Beginning balance at Mar. 31, 2021	$ 404,927,441			$ 255,590,674	$ 149,336,767
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Proceeds from exercise of stock options, net of cancellations (in shares)			154,699
Proceeds from exercise of stock options, net of cancellations	12,805,646			12,805,646
Common stock repurchases (in shares)			(589,533)
Common stock repurchases	(111,139,261)				(111,139,261)
Stock-based compensation (reversal) related to restricted stock, net of cancellations (in shares)			(22,146)
Stock-based compensation (reversal) related to restricted stock, net of cancellations	9,036,852			9,036,852
Stock-based compensation (reversal) related to stock options	3,473,913			3,473,913
Net income	53,919,837				53,919,837
Ending balance (shares) at Mar. 31, 2022			6,348,314
Ending balance at Mar. 31, 2022	373,024,428	$ (1,880,346)		280,907,085	92,117,343	$ (1,880,346)
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Proceeds from exercise of stock options, net of cancellations (in shares)			7,569
Proceeds from exercise of stock options, net of cancellations	654,920			654,920
Common stock repurchases (in shares)			(73,643)
Common stock repurchases	(14,314,089)				(14,314,089)
Stock-based compensation (reversal) related to restricted stock, net of cancellations (in shares)			(51,158)
Stock-based compensation (reversal) related to restricted stock, net of cancellations	4,067,525			4,067,525
Stock-based compensation (reversal) related to stock options	2,442,309			2,442,309
Net income	$ 21,231,990				21,231,990
Ending balance (shares) at Mar. 31, 2023	6,231,082		6,231,082
Ending balance at Mar. 31, 2023	$ 385,226,737			288,071,839	97,154,898
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Proceeds from exercise of stock options, net of cancellations (in shares)			34,649
Proceeds from exercise of stock options, net of cancellations	2,867,974			2,867,974
Common stock repurchases (in shares)			(295,201)
Common stock repurchases	(36,505,861)				(36,505,861)
Stock-based compensation (reversal) related to restricted stock, net of cancellations (in shares)			(31,865)
Stock-based compensation (reversal) related to restricted stock, net of cancellations	(752,652)			(752,652)
Stock-based compensation (reversal) related to stock options	(3,754,209)			(3,754,209)
Net income	$ 77,345,227				77,345,227
Ending balance (shares) at Mar. 31, 2024	5,938,665		5,938,665
Ending balance at Mar. 31, 2024	$ 424,427,216			$ 286,432,952	$ 137,994,264