Loans Receivable, Net (Impaired Financing Receivables) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivables, Loans Defaulted	$ 570,000	$ 611,000	$ 570,000	$ 611,000
Impaired financing receivable, recorded investment	12,595,869		12,595,869		$ 8,442,306
Impaired Financing Receivable, Unpaid Principal Balance	14,944,280		14,944,280		11,077,416
Impaired Financing Receivable, Average Recorded Investment	12,929,703	10,330,441	14,034,311	10,896,410
Impaired Financing Receivable, Interest Income, Accrual Method	42,699	46,522	173,348	184,923
Residential Real Estate 1 [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,928,137		1,928,137		1,883,741
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	2,482,806		2,482,806		2,333,741
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,967,761	2,613,299	2,407,872	2,939,263
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	2,226	10,585	25,339
Impaired financing receivable, related allowance	0		0		0
Impaired financing receivable, recorded investment	1,928,137		1,928,137		1,883,741
Impaired Financing Receivable, Unpaid Principal Balance	2,482,806		2,482,806		2,333,741
Impaired Financing Receivable, Average Recorded Investment	1,967,761	2,613,299	2,407,872	2,939,263
Impaired Financing Receivable, Interest Income, Accrual Method	0	2,226	10,585	25,339
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	956,086		956,086		181,617
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	964,386		964,386		209,427
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	957,392	240,005	1,043,893	294,002
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0	0	0
Impaired financing receivable, related allowance	0		0		0
Impaired financing receivable, recorded investment	956,086		956,086		181,617
Impaired Financing Receivable, Unpaid Principal Balance	964,386		964,386		209,427
Impaired Financing Receivable, Average Recorded Investment	957,392	240,005	1,043,893	294,002
Impaired Financing Receivable, Interest Income, Accrual Method	0	0	0	0
Commercial Business [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	78,006		78,006		100,401
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	973,006		973,006		950,401
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	78,206	145,401	87,284	145,401
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0	0	0
Impaired financing receivable, related allowance	0		0		0
Impaired financing receivable, recorded investment	78,006		78,006		100,401
Impaired Financing Receivable, Unpaid Principal Balance	973,006		973,006		950,401
Impaired Financing Receivable, Average Recorded Investment	78,206	145,401	87,284	145,401
Impaired Financing Receivable, Interest Income, Accrual Method	0	0	0	0
Commercial Real Estate 1 [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	9,633,640		9,633,640		6,276,547
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	10,524,082		10,524,082		7,583,847
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	9,926,344	7,331,736	10,495,262	7,517,744
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	42,699	44,296	162,763	159,584
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0		0		0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0		0		0
Impaired financing receivable, related allowance	0		0		0
Impaired financing receivable, recorded investment	9,633,640		9,633,640		6,276,547
Impaired Financing Receivable, Unpaid Principal Balance	10,524,082		10,524,082		7,583,847
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0	0	0
Impaired Financing Receivable, Average Recorded Investment	9,926,344	7,331,736	10,495,262	7,517,744
Impaired Financing Receivable, Interest Income, Accrual Method	42,699	$ 44,296	162,763	$ 159,584
Fair Value, Measurements, Nonrecurring | Impaired Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired financing receivable, related allowance	$ 0		$ 0		$ 0