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		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	$ 98,055		$ 98,055		$ 0
Balance At Beginning of Period	8,204,016	$ 8,377,899	8,221,618	$ 8,356,231
Provision for Loan Losses	0	0	0	0
Charge Offs	97,274	219,229	147,364	255,247
Recoveries	504,434	43,962	536,922	101,648
Balance At End of Period	8,611,176	8,202,632	8,611,176	8,202,632
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	8,513,121		8,513,121		8,221,618
Financing Receivable, Allowance for Credit Losses	8,611,176		8,611,176		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	98,055		98,055		0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	4,912,845		4,912,845		4,831,733
Financing Receivable, Allowance for Credit Losses	5,010,900		5,010,900		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		0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,077,433		1,077,433		1,011,227
Financing Receivable, Allowance for Credit Losses	1,077,433		1,077,433		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		0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,213,774		1,213,774		1,144,815
Financing Receivable, Allowance for Credit Losses	1,213,774		1,213,774		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		0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,309,069		1,309,069		1,233,843
Financing Receivable, Allowance for Credit Losses	1,309,069		1,309,069		$ 1,233,843
Residential Real Estate 1 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance At Beginning of Period	1,207,254	1,464,917	1,233,843	1,360,346
Provision for Loan Losses	104,394	50,008	88,949	160,346
Charge Offs	2,579	64,986	13,930	71,503
Recoveries	0	237	207	987
Balance At End of Period	1,309,069	1,450,176	1,309,069	1,450,176
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance At Beginning of Period	1,042,150	1,100,704	1,144,815	996,620
Provision for Loan Losses	185,314	23,765	72,381	124,319
Charge Offs	73,774	18,244	91,026	41,855
Recoveries	60,084	16,248	87,604	43,389
Balance At End of Period	1,213,774	1,122,473	1,213,774	1,122,473
Commercial Business [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance At Beginning of Period	1,128,680	964,488	1,011,227	882,999
Provision for Loan Losses	(40,216)	(83,847)	98,724	3,532
Charge Offs	11,031	(1)	32,518	5,889
Recoveries	0	0	0	0
Balance At End of Period	1,077,433	880,642	1,077,433	880,642
Commercial Real Estate 1 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance At Beginning of Period	4,825,932	4,847,790	4,831,733	5,116,266
Provision for Loan Losses	(249,492)	10,074	(260,054)	(288,197)
Charge Offs	9,890	136,000	9,890	136,000
Recoveries	444,350	27,477	449,111	57,272
Balance At End of Period	$ 5,010,900	$ 4,749,341	$ 5,010,900	$ 4,749,341