Acquisitions & Divestitures - Narrative (Details)				3 Months Ended			6 Months Ended
	Apr. 24, 2020 USD ($) loan	Apr. 17, 2020 shares	Apr. 03, 2020 USD ($) loan bank	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Apr. 02, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Business Acquisition [Line Items]
Gain on sale of banking centers				$ 9,631,000		$ 0	$ 9,631,000	$ 0
Assets				2,215,157,000		$ 1,833,018,000	2,215,157,000	$ 1,833,018,000		$ 1,944,114,000	$ 1,750,969,000
Deposits				1,863,963,000			1,863,963,000			1,265,042,000
Purchased credit impaired loans
Business Acquisition [Line Items]
Cash Flows Expected to be Collected				86,823,000			86,823,000
The First State Bank
Business Acquisition [Line Items]
Net asset discount					$ 33,200,000
Branch locations acquired, number | bank			3
Consideration transferred					1,500,000
Other real estate owned, percent of book value			46.50%
Total deposits			$ 142,520,000		140,000,000.0				$ 139,960,000
Cash and securities acquired					37,000,000.0
Loans			60,653,000		83,500,000				$ 83,514,000
Transaction cash consideration received from the FDIC			$ 39,627,000		$ 39,600,000
Number of loans acquired | loan			934
Cash Flows Expected to be Collected			$ 74,217,000
Non-Accretable Credit Adjustments			27,403,000
Accretable FMV Adjustments			$ 13,563,000
Deal related costs							1,200,000
The First State Bank | Purchased credit impaired loans
Business Acquisition [Line Items]
Number of loans acquired | loan			663
Purchased credit impaired loans | The First State Bank
Business Acquisition [Line Items]
Cash Flows Expected to be Collected			$ 61,981,000
Non-Accretable Credit Adjustments			24,842,000
Accretable FMV Adjustments			11,746,000
Purchased performing loans
Business Acquisition [Line Items]
Cash Flows Expected to be Collected			$ 39,500,000
Purchased performing loans | The First State Bank
Business Acquisition [Line Items]
Number of loans acquired | loan			271
Number of loans evaluated | loan			718
Cash Flows Expected to be Collected			$ 10,257,000
Non-Accretable Credit Adjustments			2,561,000
Accretable FMV Adjustments			$ 1,817,000
Held-for-sale
Business Acquisition [Line Items]
Loans										$ 42,916,000
Held-for-sale | Eastern Panhandle, West Virginia Branches
Business Acquisition [Line Items]
Branch locations held for sale, number | loan	4
Deposits assumed	$ 188,100,000
Loans	36,800,000
Gain on sale of banking centers	$ 9,600,000
Assets				0			0
Deposits				$ 0			$ 0
Paladin
Business Acquisition [Line Items]
Number of shares issued | shares		19,278