The following table reconciles the changes in assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three and six months ended June 30, 2021 and 2020: (Details) - Fair Value, Inputs, Level 3 [Member] - US States and Political Subdivisions Debt Securities [Member] - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	$ 1,968,876	$ 6,403,720	$ 5,683,930	$ 11,954,451
Total gains or (losses) (realized/unrealized)
Included in other comprehensive income	(8,761)	81,622	(86,815)	109,891
Purchases, issuances, and settlements net of maturities	5,000,000	(399,000)	1,363,000	(5,978,000)
Ending balance	$ 6,960,115	$ 6,086,342	$ 6,960,115	$ 6,086,342