Loans Receivable, Net (Past Due Financing Receivables) (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	$ 10,299,308	$ 6,996,614
Financing Receivable, Recorded Investment, Current	418,630,893	395,612,769
Financing Receivable, Gross	428,930,201	402,609,383
Residential Real Estate 1 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,761,938	1,344,638
Financing Receivable, Recorded Investment, Current	81,827,973	79,910,529
Financing Receivable, Gross	83,589,911	81,255,167
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,160,890	872,744
Financing Receivable, Recorded Investment, Current	55,827,040	55,888,951
Financing Receivable, Gross	56,987,930	56,761,695
Commercial Business [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	402,620	287,770
Financing Receivable, Recorded Investment, Current	27,015,620	26,490,123
Financing Receivable, Gross	27,418,240	26,777,893
Commercial Real Estate 1 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	6,973,860	4,491,462
Financing Receivable, Recorded Investment, Current	253,960,260	233,323,166
Financing Receivable, Gross	260,934,120	237,814,628
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	4,761,565	3,393,753
Financing Receivables, 30 to 59 Days Past Due [Member] | Residential Real Estate 1 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	779,645	395,763
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	976,440	604,809
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Business [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	287,093	185,526
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Real Estate 1 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	2,718,387	2,207,655
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	2,392,424	551,937
Financing Receivables, 60 to 89 Days Past Due [Member] | Residential Real Estate 1 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	56,511	85,178
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Business [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	110,527	102,244
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Real Estate 1 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	2,225,386	364,515
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	3,145,319	3,050,924
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Residential Real Estate 1 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	982,293	948,875
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	127,939	182,757
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial Business [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	5,000	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial Real Estate 1 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	$ 2,030,087	$ 1,919,292