Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Fair value of financial and nonfinancial obligations.

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Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

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Fair Value Measurements - Recurring (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Assets:
Securities available-for-sale	$ 715,188		$ 496,178
Mortgage servicing rights	5,320		4,224
US Treasury Securities [Member]
Assets:
Securities available-for-sale	4,070		4,117
Mortgage Backed Securities, Issued by US Government Agencies [Member]
Assets:
Securities available-for-sale	17,818
US States and Political Subdivisions Debt Securities [Member]
Assets and liabilities measured at fair value on a recurring basis
Purchases	748	$ 12,900
Assets:
Securities available-for-sale	238,952		249,259
Corporate Bond Securities [Member]
Assets:
Securities available-for-sale	4,992
Collateralized Mortgage Obligations [Member]
Assets:
Securities available-for-sale	165,414		56,585
Asset-backed Securities [Member]
Assets:
Securities available-for-sale	189,338		131,818
Collateralized loan obligations
Assets:
Securities available-for-sale	61,029		30,533
Fair Value, Inputs, Level 1 [Member]
Assets:
Securities available-for-sale	4,070		4,117
Fair Value, Inputs, Level 2 [Member]
Assets:
Securities available-for-sale	705,558		487,742
Loans held-for-sale	3,009		12,611
Other assets	5,292		9,388
Liabilities:
Other liabilities	7,767		13,071
Fair Value, Inputs, Level 3 [Member]
Assets:
Securities available-for-sale	5,560		4,319
Mortgage servicing rights	5,320		4,224
Fair Value, Inputs, Level 3 [Member] \| US States and Political Subdivisions Debt Securities [Member]
Assets:
Securities available-for-sale	5,600	$ 4,800
Recurring
Assets:
Loans held-for-sale	3,009		12,611
Mortgage servicing rights	5,320		4,224
Total financial assets	729,684		523,241
Liabilities:
Total	7,798		13,159
Recurring \| Interest Rate Swap [Member]
Assets:
Other assets	5,292		9,388
Liabilities:
Other liabilities	7,798		13,159
Recurring \| Forward Contracts [Member]
Assets:
Other assets	875		840
Recurring \| US Treasury Securities [Member]
Assets:
Securities available-for-sale	4,070		4,117
Recurring \| US Government Corporations and Agencies Securities [Member]
Assets:
Securities available-for-sale	33,575		6,657
Recurring \| Mortgage Backed Securities, Issued by US Government Agencies [Member]
Assets:
Securities available-for-sale	17,818		17,209
Recurring \| US States and Political Subdivisions Debt Securities [Member]
Assets:
Securities available-for-sale	238,952		249,259
Recurring \| Corporate Bond Securities [Member]
Assets:
Securities available-for-sale	4,992
Recurring \| Collateralized Mortgage Obligations [Member]
Assets:
Securities available-for-sale	165,414		56,585
Recurring \| Asset-backed Securities [Member]
Assets:
Securities available-for-sale	189,338		131,818
Recurring \| Collateralized loan obligations
Assets:
Securities available-for-sale	61,029		30,533
Recurring \| Fair Value, Inputs, Level 1 [Member]
Assets:
Total financial assets	4,070		4,117
Recurring \| Fair Value, Inputs, Level 1 [Member] \| US Treasury Securities [Member]
Assets:
Securities available-for-sale	4,070		4,117
Recurring \| Fair Value, Inputs, Level 2 [Member]
Assets:
Loans held-for-sale	3,009		12,611
Total financial assets	714,734		510,581
Liabilities:
Total	7,798		13,159
Recurring \| Fair Value, Inputs, Level 2 [Member] \| Interest Rate Swap [Member]
Assets:
Other assets	5,292		9,388
Liabilities:
Other liabilities	7,798		13,159
Recurring \| Fair Value, Inputs, Level 2 [Member] \| Forward Contracts [Member]
Assets:
Other assets	875		840
Recurring \| Fair Value, Inputs, Level 2 [Member] \| US Government Corporations and Agencies Securities [Member]
Assets:
Securities available-for-sale	33,575		6,657
Recurring \| Fair Value, Inputs, Level 2 [Member] \| Mortgage Backed Securities, Issued by US Government Agencies [Member]
Assets:
Securities available-for-sale	17,818		17,209
Recurring \| Fair Value, Inputs, Level 2 [Member] \| US States and Political Subdivisions Debt Securities [Member]
Assets:
Securities available-for-sale	233,392		244,940
Recurring \| Fair Value, Inputs, Level 2 [Member] \| Corporate Bond Securities [Member]
Assets:
Securities available-for-sale	4,992
Recurring \| Fair Value, Inputs, Level 2 [Member] \| Collateralized Mortgage Obligations [Member]
Assets:
Securities available-for-sale	165,414		56,585
Recurring \| Fair Value, Inputs, Level 2 [Member] \| Asset-backed Securities [Member]
Assets:
Securities available-for-sale	189,338		131,818
Recurring \| Fair Value, Inputs, Level 2 [Member] \| Collateralized loan obligations
Assets:
Securities available-for-sale	61,029		30,533
Recurring \| Fair Value, Inputs, Level 3 [Member]
Assets:
Mortgage servicing rights	5,320		4,224
Total financial assets	10,880		8,543
Recurring \| Fair Value, Inputs, Level 3 [Member] \| US States and Political Subdivisions Debt Securities [Member]
Assets:
Securities available-for-sale	$ 5,560		$ 4,319