Borrowings - Summary (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Borrowings
Senior Notes	$ 44,349	$ 44,270
Total borrowings	159,984	205,870
Securities Sold under Agreements to Repurchase [Member]
Borrowings
Total borrowings	59,268	48,693
Federal Home Loan Bank Advances [Member]
Borrowings
Total borrowings	6,125	48,500
Junior Subordinated Debt
Borrowings
Total borrowings	25,773	57,734
Senior Notes.
Borrowings
Senior Notes	44,349	44,270
Notes Payable to Banks [Member]
Borrowings
Total borrowings	$ 24,469	$ 6,673

Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16(a))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Name:	us-gaap_SeniorNotes
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant