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Business Combinations - Unaudited Pro Forma Condensed Combined Financial Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Business Combinations [Abstract]
Net interest income	$ 45,496	$ 43,717	$ 131,713	$ 127,341
Provision for loan losses	1,103	4,211	12,879	17,379
Non-interest income	16,359	15,439	53,504	48,214
Non-interest expense	36,321	36,100	124,133	113,461
Income before taxes	24,431	18,845	48,205	44,715
Income tax expense (benefit)	6,105	4,753	11,052	10,865
Net income (loss)	$ 18,326	$ 14,092	$ 37,153	$ 33,850
Earnings per share
Basic	$ 1.01	$ 0.78	$ 2.08	$ 1.88
Diluted	$ 1.01	$ 0.78	$ 2.08	$ 1.88
Basic weighted average shares o/s	18,083,126	17,990,437	17,819,619	17,972,731
Diluted weighted average shares o/s	18,136,146	18,037,345	17,872,639	18,019,639

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Business acquisitions pro forma income tax expense benefit.

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Business Acquisitions Pro Forma Income before Income Taxes

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Business Acquisitions Pro Forma Provision For Loan Losses

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(3)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
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The pro forma diluted 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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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
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The weighted average number of shares or units and dilutive common stock or unit equivalents outstanding in the calculation of proforma diluted earnings per share (earnings per unit), which is commonly presented in initial public offerings based on the terms of the offering.

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The weighted average number of shares (units) outstanding in the calculation of pro forma basic earnings per share (earnings per unit), which is commonly presented in initial public offerings based on the terms of the offering.

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