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Acquisition of The Scottdale Bank and Trust Company (Pro Forma Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Net interest income after loan loss provision	$ 17,070	$ 17,202	$ 17,305	$ 17,181	$ 17,456	$ 15,811	$ 11,414	$ 10,753	$ 68,758	$ 55,434	$ 37,263
Noninterest income	4,695	3,003	2,874	2,049	2,091	2,165	1,559	1,647	12,621	7,462	5,707
Noninterest expense	$ 16,171	$ 14,683	$ 14,796	$ 14,303	$ 13,982	$ 15,264	$ 9,742	$ 11,183	$ 59,953	50,171	31,381
Scottdale Bank and Trust Company [Member]
Business Acquisition [Line Items]
Net interest income after loan loss provision										55,434	43,371
Noninterest income										7,462	6,094
Noninterest expense										48,867	38,403
Net income										$ 11,736	$ 8,075
Net income per common share										$ 1.64	$ 1.32

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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Amount of interest income or expense, including any amortization and accretion (as applicable) of discounts and premiums, including consideration of the provisions for loan, lease, credit, and other related losses.

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