Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net income	$ 10,264,680	$ 4,588,348	$ 17,257,534	$ 7,570,105
Unrealized gain (loss) on bond purchase commitments	81,606
Comprehensive income	12,279,458	25,559,997	2,852,545	20,447,383
Accumulated Other Comprehensive Income (Loss) [Member]
Reversal of net unrealized gains on sale of securities				(1,408,804)
Reversal of net unrealized loss on securities to provision for credit loss				372,169
Unrealized gain (loss) on securities	1,933,172	$ 20,971,649	(14,365,625)	$ 13,913,913
Unrealized gain (loss) on bond purchase commitments	81,606
Commitments [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
Unrealized gain (loss) on bond purchase commitments	$ 81,606		$ (39,364)