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
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	$ 0		$ 0
Balance At Beginning of Period	9,225,574	$ 9,171,717
Provision for Loan Losses	700,000	100,000
Charge Offs	82,155	566,010
Recoveries	28,419	92,848
Balance At End of Period	9,871,838	8,798,555
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	9,871,838		9,225,574
Financing Receivable, Allowance for Credit Loss	9,871,838		9,225,574
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
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	6,460,497		6,079,367
Financing Receivable, Allowance for Credit Loss	6,460,497		6,079,367
Commercial Business [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0		0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	612,718		544,764
Financing Receivable, Allowance for Credit Loss	612,718		544,764
Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0		0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,328,285		1,210,849
Financing Receivable, Allowance for Credit Loss	1,328,285		1,210,849
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
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,470,338		1,390,594
Financing Receivable, Allowance for Credit Loss	1,470,338		$ 1,390,594
Residential Real Estate 1 [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Balance At Beginning of Period	1,390,594	1,191,443
Provision for Loan Losses	79,144	(12,650)
Charge Offs	0	34,599
Recoveries	600	3,476
Balance At End of Period	1,470,338	1,147,670
Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Balance At Beginning of Period	1,210,849	1,203,593
Provision for Loan Losses	141,944	4,806
Charge Offs	47,107	130,194
Recoveries	22,599	43,000
Balance At End of Period	1,328,285	1,121,205
Commercial Business [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Balance At Beginning of Period	544,764	923,600
Provision for Loan Losses	103,002	55,446
Charge Offs	35,048	1,132
Recoveries	0	14,068
Balance At End of Period	612,718	991,982
Commercial Real Estate 1 [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Balance At Beginning of Period	6,079,367	5,853,081
Provision for Loan Losses	375,910	52,398
Charge Offs	0	400,085
Recoveries	5,220	32,304
Balance At End of Period	$ 6,460,497	$ 5,537,698

Amount of allowance for credit loss on accounts receivable.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5074-111524

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
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-Section 50
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-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
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-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118955202&loc=SL82895884-210446

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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 310
-SubTopic 10
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-Topic 326
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-Section 45
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-URI http://asc.fasb.org/extlink&oid=118955202&loc=SL82895884-210446

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-Topic 326
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 326
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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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