Loans Receivable, Net (Schedule of loans evaluated individually for impairment and collectively evaluated for impairment in the allowance for loan losses) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	$ 637,314		$ 738,662
Balance At Beginning of Period	9,171,717	$ 8,221,618
Provision for Loan Losses	100,000	0
Charge Offs	566,010	50,090
Recoveries	92,848	32,488
Balance At End of Period	8,798,555	8,204,016
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	8,161,241		8,433,055
Financing Receivable, Allowance for Credit Losses	8,798,555		9,171,717
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	4,972,698		5,188,081
Financing Receivable, Allowance for Credit Losses	5,537,698		5,853,081
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	991,982		923,600
Financing Receivable, Allowance for Credit Losses	991,982		923,600
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	72,314		73,662
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,048,891		1,129,931
Financing Receivable, Allowance for Credit Losses	1,121,205		1,203,593
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	1,147,670		1,191,443
Financing Receivable, Allowance for Credit Losses	1,147,670		$ 1,191,443
Residential Real Estate 1 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance At Beginning of Period	1,191,443	1,233,843
Provision for Loan Losses	(12,650)	(15,445)
Charge Offs	34,599	11,351
Recoveries	3,476	207
Balance At End of Period	1,147,670	1,207,254
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance At Beginning of Period	1,203,593	1,144,815
Provision for Loan Losses	4,806	(112,933)
Charge Offs	130,194	17,252
Recoveries	43,000	27,520
Balance At End of Period	1,121,205	1,042,150
Commercial Business [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance At Beginning of Period	923,600	1,011,227
Provision for Loan Losses	55,446	138,940
Charge Offs	1,132	21,487
Recoveries	14,068	0
Balance At End of Period	991,982	1,128,680
Commercial Real Estate 1 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance At Beginning of Period	5,853,081	4,831,733
Provision for Loan Losses	52,398	(10,562)
Charge Offs	400,085	0
Recoveries	32,304	4,761
Balance At End of Period	$ 5,537,698	$ 4,825,932