Shareholders' Equity (Details) - USD ($) $ in Millions	81 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Mar. 31, 2017
Subsidiary, Sale of Stock [Line Items]
Deferred compensation paid to participants	$ 6.8
Carolina Bank
Subsidiary, Sale of Stock [Line Items]
Deferred compensation plan	$ 1.4	$ 1.6	$ 7.7

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(17))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

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