Business Combinations (Textual) (Details) - USD ($) $ / shares in Units, $ in Thousands					2 Months Ended	9 Months Ended	12 Months Ended
	Mar. 01, 2020	Apr. 23, 2019	Nov. 01, 2018	May 01, 2018	Feb. 29, 2020	Sep. 30, 2019	Dec. 31, 2018
Foothills Bancorp [Member]
Business Acquisition [Line Items]
Cash to be paid upon conversion (in dollars per share)			$ 1.75
Common shares to be converted (in shares)			0.666
Number of shares issued (in shares)			1,183,232
Cash consideration paid			$ 6,069
Fair value adjustment						$ 473
Cash paid for merger			3,100
Additional consideration transferred			$ 3,000
Pro forma, revenue of acquiree since acquisition date, actual							$ 1,500
Pro forma information, earnings (loss) since acquisition date, actual							876
Pro forma revenue							11,000
Pro forma net income (loss)							1,600
Tennessee Bancshares [Member]
Business Acquisition [Line Items]
Common shares to be converted (in shares)				0.8065
Number of shares issued (in shares)				1,458,981
Cash consideration paid				$ 5
Fair value adjustment							54
Pro forma, revenue of acquiree since acquisition date, actual							8,400
Pro forma information, earnings (loss) since acquisition date, actual							3,500
Pro forma revenue							14,700
Pro forma net income (loss)							3,600
Entegra Financial Corp [Member]
Business Acquisition [Line Items]
Termination fee received		$ 6,400
Pro Forma [Member] | Foothills Bancorp [Member]
Business Acquisition [Line Items]
Operating expenses							2,300
Pro Forma [Member] | Tennessee Bancshares [Member]
Business Acquisition [Line Items]
Operating expenses							$ 2,000
Subsequent Event [Member] | Progressive Financial Group Inc. [Member]
Business Acquisition [Line Items]
Distribution paid					$ 4,800
Subsequent Event [Member] | Progressive Financial Group Inc. [Member]
Business Acquisition [Line Items]
Cash to be paid upon conversion (in dollars per share)	$ 474.82
Common shares to be converted (in shares)	62.3808
Number of shares issued (in shares)	1,292,592
Cash consideration paid	$ 9,800