FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) - USD ($)	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020
U.S. treasury securities	$ 5,692,831	$ 6,309,805
Corporate securities	41,620,142	45,249,973
Agency mortgage-backed securities	18,531,691	20,853,627
Certificates of deposits	300,000	300,000
Equity securities	4,030,888	4,131,153
Short-term investments	1,051,230	1,154,750
Total financial instruments at fair value	71,226,782	77,999,308
Short-term investments	1,051,230	1,154,750	$ 1,051,230	$ 1,154,750
Level 1
U.S. treasury securities	5,692,831	6,309,805
Corporate securities	0	0
Agency mortgage-backed securities	0	0
Equity securities	4,030,888	4,131,153
Total financial instruments at fair value	10,774,949	11,595,708
Short-term investments	1,051,230	1,154,750
Level 2
U.S. treasury securities	0	0
Corporate securities	41,620,142	45,249,973
Agency mortgage-backed securities	18,531,691	20,853,627
Certificates of deposits	300,000	300,000
Equity securities	0	0
Total financial instruments at fair value	60,451,833	66,403,600
Short-term investments	0	0
Level 3
U.S. treasury securities	0	0
Corporate securities	0	0
Agency mortgage-backed securities	0	0
Equity securities	0	0
Total financial instruments at fair value	0	0
Short-term investments	$ 0	$ 0