5. Loans, Allowance for Loan Losses and Credit Quality (Details 2)	Sep. 30, 2019 USD ($) integer	Dec. 31, 2018 USD ($) integer
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Residential mortgage loans in process of foreclosure, number of loans \| integer	13	12
Residential mortgage loans in process of foreclosure, current balance \| $	$ 864,019	$ 961,709

Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL49126937-111524

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