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, 2019	Dec. 31, 2018
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	$ 636,301	$ 738,662
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	8,117,238	8,433,055
Financing Receivable, Allowance for Credit Losses	8,753,539	9,171,717
Financing Receivable, Individually Evaluated for Impairment	4,801,446	9,364,125
Financing Receivable, Collectively Evaluated for Impairment	450,110,055	435,555,970
Financing Receivable, Gross	$ 454,911,501	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	1,125,812	1,191,443
Financing Receivable, Allowance for Credit Losses	1,125,812	1,191,443
Financing Receivable, Individually Evaluated for Impairment	1,142,166	1,700,861
Financing Receivable, Collectively Evaluated for Impairment	85,200,295	82,264,555
Financing Receivable, Gross	86,342,461	83,965,416
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	71,301	73,662
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,021,026	1,129,931
Financing Receivable, Allowance for Credit Losses	1,092,327	1,203,593
Financing Receivable, Individually Evaluated for Impairment	206,117	1,060,043
Financing Receivable, Collectively Evaluated for Impairment	55,281,864	55,847,512
Financing Receivable, Gross	55,487,981	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	896,843	923,600
Financing Receivable, Allowance for Credit Losses	896,843	923,600
Financing Receivable, Individually Evaluated for Impairment	72,407	77,206
Financing Receivable, Collectively Evaluated for Impairment	28,572,204	28,009,480
Financing Receivable, Gross	28,644,611	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	5,073,557	5,188,081
Financing Receivable, Allowance for Credit Losses	5,638,557	5,853,081
Financing Receivable, Individually Evaluated for Impairment	3,380,756	6,526,015
Financing Receivable, Collectively Evaluated for Impairment	281,055,692	269,434,423
Financing Receivable, Gross	$ 284,436,448	$ 275,960,438