Loans Receivable, Net (Schedule of loans evaluated individually for impairment and collectively evaluated for impairment in loans receivable) (Details) - USD ($)	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	$ 0	$ 0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	11,423,760	12,842,896
Financing Receivable, Allowance for Credit Loss	11,423,760	12,842,896
Financing Receivable, Individually Evaluated for Impairment	2,435,375	2,219,330
Financing Receivable, Collectively Evaluated for Impairment	533,182,517	498,133,381
Financing Receivable, before Allowance for Credit Loss	$ 535,617,892	500,352,711
Loans and Leases Receivable, Valuation Period for New Appraisal	24 months
Residential Real Estate 1 [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	$ 0	0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,097,992	1,528,948
Financing Receivable, Allowance for Credit Loss	1,097,992	1,528,948
Financing Receivable, Individually Evaluated for Impairment	1,122,369	1,284,303
Financing Receivable, Collectively Evaluated for Impairment	78,949,625	77,622,856
Financing Receivable, before Allowance for Credit Loss	80,071,994	78,907,159
Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0	0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,165,357	1,298,655
Financing Receivable, Allowance for Credit Loss	1,165,357	1,298,655
Financing Receivable, Individually Evaluated for Impairment	154,465	161,869
Financing Receivable, Collectively Evaluated for Impairment	56,399,507	55,173,556
Financing Receivable, before Allowance for Credit Loss	56,553,972	55,335,425
Commercial Business [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0	0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,559,281	1,165,033
Financing Receivable, Allowance for Credit Loss	1,559,281	1,165,033
Financing Receivable, Individually Evaluated for Impairment	53,046	53,047
Financing Receivable, Collectively Evaluated for Impairment	30,203,766	19,651,815
Financing Receivable, before Allowance for Credit Loss	30,256,812	19,704,862
Commercial Real Estate 1 [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0	0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	7,601,130	8,850,260
Financing Receivable, Allowance for Credit Loss	7,601,130	8,850,260
Financing Receivable, Individually Evaluated for Impairment	1,105,495	720,111
Financing Receivable, Collectively Evaluated for Impairment	308,770,732	298,579,536
Financing Receivable, before Allowance for Credit Loss	$ 309,876,227	$ 299,299,647