Securities - Additional Information (Details)	3 Months Ended	9 Months Ended	12 Months Ended
Sep. 30, 2020 USD ($) item	Sep. 30, 2019 item	Sep. 30, 2020 USD ($) item	Sep. 30, 2019 item	Dec. 31, 2019 USD ($)
Amortized Cost and Fair Value Debt Securities
Number of sales of investment securities \| item	0	0	0	0
Total fair value \| $	$ 197,178		$ 197,178		$ 5,814,388
Percentage of total investment portfolio fair value			3.60%		86.40%

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant