FAIR VALUE OF FINANCIAL INSTRUMENTS - Cumulative unrealized gains and losses (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Cumulative unrealized gains and losses from Investments in debt and equity securities
Cost	$ 34,681,869		$ 24,800,998
Gross Unrealized Gains	6,348,327		4,856,316
Aggregate Fair Value	41,030,196		29,657,314
Unrealized gains on investments in debt and equity securities	1,500,000	$ 3,300,000
Equity securities
Cumulative unrealized gains and losses from Investments in debt and equity securities
Cost	22,954,756		22,913,739
Gross Unrealized Gains	6,239,990		4,778,720
Aggregate Fair Value	29,194,746		27,692,459
Mutual funds
Cumulative unrealized gains and losses from Investments in debt and equity securities
Cost	11,092,421		1,252,804
Gross Unrealized Gains	68,497		50,169
Aggregate Fair Value	11,160,918		1,302,973
Municipal bonds
Cumulative unrealized gains and losses from Investments in debt and equity securities
Cost	634,692		634,455
Gross Unrealized Gains	39,840		27,427
Aggregate Fair Value	$ 674,532		$ 661,882