Consolidated Statements of Changes in Stockholders' Equity - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Dec. 31, 2020	77,195,704
Balance at Dec. 31, 2020	$ 7,720	$ 224,978,430	$ (95,192,881)	$ 0	$ 129,793,269
Net income			69,450,766		69,450,766
Repurchase of common stock (in shares)	(3,787,683)
Repurchase of common stock	$ (379)		(26,021,140)		(26,021,519)
Issuance of common stock upon vesting of RSUs (in shares)	162,876
Issuance of common stock upon vesting of RSUs	$ 16	(16)			0
Payment of common stock tendered for employee stock-based compensation tax obligations (in shares)	(27,295)
Payment of common stock tendered for employee stock-based compensation tax obligations	$ (3)	(173,915)			(173,918)
Stock-based compensation		1,265,809			1,265,809
Balance (in shares) at Dec. 31, 2021	73,543,602
Balance at Dec. 31, 2021	$ 7,354	226,070,308	(51,763,255)	0	174,314,407
Net income			33,904,806		33,904,806
Repurchase of common stock (in shares)	(1,823,738)
Repurchase of common stock	$ (182)		(13,006,149)		(13,006,331)
Issuance of common stock upon vesting of RSUs (in shares)	132,396
Issuance of common stock upon vesting of RSUs	$ 13	(13)			0
Payment of common stock tendered for employee stock-based compensation tax obligations (in shares)	(1,973)
Payment of common stock tendered for employee stock-based compensation tax obligations		(12,533)			(12,533)
Stock-based compensation		1,779,310			1,779,310
Issuance of common stock upon exercise of warrants (in shares)	824,903
Issuance of common stock upon exercise of warrants	$ 83	6,120,695			6,120,778
Cash dividend ($0.45 per share)			(32,940,395)		$ (32,940,395)
Issuance of common stock upon exercise of stock options (in shares)					0
Balance (in shares) at Dec. 31, 2022	72,675,190
Balance at Dec. 31, 2022	$ 7,268	233,957,767	(63,804,993)	0	$ 170,160,042
Net income			68,068,826		68,068,826
Repurchase of common stock (in shares)	(1,736,822)
Repurchase of common stock	$ (174)		(11,072,337)		(11,072,511)
Issuance of common stock upon vesting of RSUs (in shares)	144,576
Issuance of common stock upon vesting of RSUs	$ 15	(15)			0
Payment of common stock tendered for employee stock-based compensation tax obligations		(214,794)			(214,794)
Stock-based compensation		2,052,462			2,052,462
Cash dividend ($0.45 per share)			(32,135,118)		$ (32,135,118)
Issuance of common stock upon exercise of stock options (in shares)	8,672				100,000
Issuance of common stock upon exercise of stock options					$ 0
Balance (in shares) at Dec. 31, 2023	71,091,616
Balance at Dec. 31, 2023	$ 7,109	$ 235,795,420	$ (38,943,622)	$ 0	$ 196,858,907