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, 2019	Dec. 31, 2018
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	$ 565,000	$ 738,662
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	8,193,638	8,433,055
Financing Receivable, Allowance for Credit Losses	8,758,638	9,171,717
Financing Receivable, Individually Evaluated for Impairment	4,323,060	9,364,125
Financing Receivable, Collectively Evaluated for Impairment	462,993,422	435,555,970
Financing Receivable, Gross	$ 467,316,482	444,920,095
Loans and Leases Receivable, Valuation Period for New Appraisal	24 months
Residential Real Estate 1 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	$ 0	0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,141,471	1,191,443
Financing Receivable, Allowance for Credit Losses	1,141,471	1,191,443
Financing Receivable, Individually Evaluated for Impairment	1,125,232	1,700,861
Financing Receivable, Collectively Evaluated for Impairment	84,645,598	82,264,555
Financing Receivable, Gross	85,770,830	83,965,416
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0	73,662
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,023,550	1,129,931
Financing Receivable, Allowance for Credit Losses	1,023,550	1,203,593
Financing Receivable, Individually Evaluated for Impairment	132,538	1,060,043
Financing Receivable, Collectively Evaluated for Impairment	55,133,023	55,847,512
Financing Receivable, Gross	55,265,561	56,907,555
Commercial Business [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0	0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	761,138	923,600
Financing Receivable, Allowance for Credit Losses	761,138	923,600
Financing Receivable, Individually Evaluated for Impairment	64,406	77,206
Financing Receivable, Collectively Evaluated for Impairment	26,861,034	28,009,480
Financing Receivable, Gross	26,925,440	28,086,686
Commercial Real Estate 1 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	565,000	665,000
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	5,267,479	5,188,081
Financing Receivable, Allowance for Credit Losses	5,832,479	5,853,081
Financing Receivable, Individually Evaluated for Impairment	3,000,884	6,526,015
Financing Receivable, Collectively Evaluated for Impairment	296,353,767	269,434,423
Financing Receivable, Gross	$ 299,354,651	$ 275,960,438