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, 2018	Mar. 31, 2017	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	$ 102,756		$ 0
Balance At Beginning of Period	8,221,618	$ 8,356,231
Provision for Loan Losses	0	0
Charge Offs	50,090	36,018
Recoveries	32,488	57,686
Balance At End of Period	8,204,016	8,377,899
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	8,101,260		8,221,618
Financing Receivable, Allowance for Credit Losses	8,204,016		8,221,618
Commercial Real Estate 1 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	102,756		0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	4,723,176		4,831,733
Financing Receivable, Allowance for Credit Losses	4,825,932		4,831,733
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	1,128,680		1,011,227
Financing Receivable, Allowance for Credit Losses	1,128,680		1,011,227
Consumer [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	1,042,150		1,144,815
Financing Receivable, Allowance for Credit Losses	1,042,150		1,144,815
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	1,207,254		1,233,843
Financing Receivable, Allowance for Credit Losses	1,207,254		$ 1,233,843
Residential Real Estate 1 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance At Beginning of Period	1,233,843	1,360,346
Provision for Loan Losses	(15,445)	110,338
Charge Offs	11,351	6,517
Recoveries	207	750
Balance At End of Period	1,207,254	1,464,917
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance At Beginning of Period	1,144,815	996,620
Provision for Loan Losses	(112,933)	100,554
Charge Offs	17,252	23,611
Recoveries	27,520	27,141
Balance At End of Period	1,042,150	1,100,704
Commercial Business [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance At Beginning of Period	1,011,227	882,999
Provision for Loan Losses	138,940	87,379
Charge Offs	21,487	5,890
Recoveries	0	0
Balance At End of Period	1,128,680	964,488
Commercial Real Estate 1 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance At Beginning of Period	4,831,733	5,116,266
Provision for Loan Losses	(10,562)	(298,271)
Charge Offs	0	0
Recoveries	4,761	29,795
Balance At End of Period	$ 4,825,932	$ 4,847,790