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, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	$ 0		$ 0		$ 0
Balance At Beginning of Period	11,946,873	$ 9,871,838	12,842,896	$ 9,225,574
Provision for Loan Losses	(735,000)	700,000	(1,605,000)	1,400,000
Charge Offs	19,415	55,886	64,391	138,041
Recoveries	231,302	160,319	250,255	188,738
Balance At End of Period	11,423,760	10,676,271	11,423,760	10,676,271
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	11,423,760		11,423,760		12,842,896
Financing Receivable, Allowance for Credit Loss	11,423,760		11,423,760		12,842,896
Commercial Real Estate 1 [Member]
Financing Receivable, Allowance for Credit Loss [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	7,601,130		7,601,130		8,850,260
Financing Receivable, Allowance for Credit Loss	7,601,130		7,601,130		8,850,260
Commercial Business [Member]
Financing Receivable, Allowance for Credit Loss [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	1,559,281		1,559,281		1,165,033
Financing Receivable, Allowance for Credit Loss	1,559,281		1,559,281		1,165,033
Consumer [Member]
Financing Receivable, Allowance for Credit Loss [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	1,165,357		1,165,357		1,298,655
Financing Receivable, Allowance for Credit Loss	1,165,357		1,165,357		1,298,655
Residential Real Estate 1 [Member]
Financing Receivable, Allowance for Credit Loss [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	1,097,992		1,097,992		1,528,948
Financing Receivable, Allowance for Credit Loss	1,097,992		1,097,992		$ 1,528,948
Residential Real Estate 1 [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Balance At Beginning of Period	1,228,610	1,470,338	1,528,948	1,390,594
Provision for Loan Losses	(154,894)	61,866	(455,302)	141,010
Charge Offs	0	0	0	0
Recoveries	24,276	600	24,346	1,200
Balance At End of Period	1,097,992	1,532,804	1,097,992	1,532,804
Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Balance At Beginning of Period	1,201,154	1,328,285	1,298,655	1,210,849
Provision for Loan Losses	(75,763)	26,726	(144,282)	168,670
Charge Offs	19,415	55,886	57,692	102,993
Recoveries	59,381	18,609	68,676	41,208
Balance At End of Period	1,165,357	1,317,734	1,165,357	1,317,734
Commercial Business [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Balance At Beginning of Period	1,131,285	612,718	1,165,033	544,764
Provision for Loan Losses	427,288	27,013	399,291	130,015
Charge Offs	0	0	6,699	35,048
Recoveries	708	0	1,656	0
Balance At End of Period	1,559,281	639,731	1,559,281	639,731
Commercial Real Estate 1 [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Balance At Beginning of Period	8,385,824	6,460,497	8,850,260	6,079,367
Provision for Loan Losses	(931,631)	584,395	(1,404,707)	960,305
Charge Offs	0	0	0	0
Recoveries	146,937	141,110	155,577	146,330
Balance At End of Period	$ 7,601,130	$ 7,186,002	$ 7,601,130	$ 7,186,002