Loans Receivable, Net (Impaired Financing Receivables) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivables, Loans Defaulted	$ 607,000	$ 599,000	$ 607,000	$ 599,000
Impaired financing receivable, recorded investment	11,846,523		11,846,523		$ 8,442,306
Impaired Financing Receivable, Unpaid Principal Balance	14,380,390		14,380,390		11,077,416
Impaired Financing Receivable, Average Recorded Investment	12,765,314	10,380,155	12,938,189	10,684,795
Impaired Financing Receivable, Interest Income, Accrual Method	59,155	91,078	121,142	138,401
Residential Real Estate 1 [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,648,511		1,648,511		1,883,741
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	2,175,691		2,175,691		2,333,741
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,963,932	2,639,699	2,089,364	2,816,097
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	22,563	1,078	23,113
Impaired financing receivable, related allowance	0		0		0
Impaired financing receivable, recorded investment	1,648,511		1,648,511		1,883,741
Impaired Financing Receivable, Unpaid Principal Balance	2,175,691		2,175,691		2,333,741
Impaired Financing Receivable, Average Recorded Investment	1,963,932	2,639,699	2,089,364	2,816,097
Impaired Financing Receivable, Interest Income, Accrual Method	0	22,563	1,078	23,113
Consumer [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	92,618		92,618		181,617
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	100,918		100,918		209,427
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	177,644	149,953	179,177	158,227
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	92,618		92,618		181,617
Impaired Financing Receivable, Unpaid Principal Balance	100,918		100,918		209,427
Impaired Financing Receivable, Average Recorded Investment	177,644	149,953	179,177	158,227
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	78,806		78,806		100,401
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	973,806		973,806		950,401
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	85,804	145,401	91,260	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	78,806		78,806		100,401
Impaired Financing Receivable, Unpaid Principal Balance	973,806		973,806		950,401
Impaired Financing Receivable, Average Recorded Investment	85,804	145,401	91,260	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	9,774,850		9,774,850		6,276,547
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	10,878,237		10,878,237		7,583,847
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	10,285,113	7,192,652	10,325,567	7,314,836
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	56,646	68,515	117,215	115,288
Impaired Financing Receivable, with Related Allowance, Recorded Investment	251,738		251,738		0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	251,738		251,738		0
Impaired financing receivable, related allowance	98,055		98,055		0
Impaired financing receivable, recorded investment	10,026,588		10,026,588		6,276,547
Impaired Financing Receivable, Unpaid Principal Balance	11,129,975		11,129,975		7,583,847
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	252,821	252,450	252,821	250,234
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	2,509	0	2,849	0
Impaired Financing Receivable, Average Recorded Investment	10,537,934	7,445,102	10,578,388	7,565,070
Impaired Financing Receivable, Interest Income, Accrual Method	59,155	$ 68,515	120,064	$ 115,288
Fair Value, Measurements, Nonrecurring | Impaired Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired financing receivable, related allowance	$ 98,055		$ 98,055		$ 0