Loans Receivable, Net (Schedule of loans evaluated individually for impairment and collectively evaluated for impairment in loans receivable) (Details) - USD ($)	9 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
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	12,845,662	9,225,574
Financing Receivable, Allowance for Credit Loss	12,845,662	9,225,574
Financing Receivable, Individually Evaluated for Impairment	3,217,465	3,229,883
Financing Receivable, Collectively Evaluated for Impairment	543,903,043	465,290,528
Financing Receivable, before Allowance for Credit Loss	$ 547,120,508	468,520,411
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	1,588,891	1,390,594
Financing Receivable, Allowance for Credit Loss	1,588,891	1,390,594
Financing Receivable, Individually Evaluated for Impairment	1,772,454	1,086,433
Financing Receivable, Collectively Evaluated for Impairment	81,290,553	85,317,871
Financing Receivable, before Allowance for Credit Loss	83,063,007	86,404,304
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	1,285,090	1,210,849
Financing Receivable, Allowance for Credit Loss	1,285,090	1,210,849
Financing Receivable, Individually Evaluated for Impairment	171,845	184,402
Financing Receivable, Collectively Evaluated for Impairment	56,471,847	56,146,611
Financing Receivable, before Allowance for Credit Loss	56,643,692	56,331,013
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	1,082,461	544,764
Financing Receivable, Allowance for Credit Loss	1,082,461	544,764
Financing Receivable, Individually Evaluated for Impairment	53,046	64,406
Financing Receivable, Collectively Evaluated for Impairment	19,171,688	22,169,783
Financing Receivable, before Allowance for Credit Loss	19,224,734	22,234,189
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	8,889,220	6,079,367
Financing Receivable, Allowance for Credit Loss	8,889,220	6,079,367
Financing Receivable, Individually Evaluated for Impairment	1,220,120	1,894,642
Financing Receivable, Collectively Evaluated for Impairment	311,705,173	301,656,263
Financing Receivable, before Allowance for Credit Loss	$ 312,925,293	$ 303,550,905