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Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Amortized intangible assets [Abstract]
Gross carrying value	[1]	$ 3,699		$ 3,699		$ 3,636
Accumulated amortization	[1]	(2,239)		(2,239)		(2,013)
Net carrying value	[1]	1,460		1,460		1,623
Unamortized intangible assets [Abstract]
Goodwill		23,296		23,296		23,296
Actual and Estimated Future Amortization Expense [Abstract]
Amortization expense		112	$ 122	226	$ 247
Estimated Amortization Expense [Abstract]
Remaining 2019		219		219
2020		353		353
2021		287		287
2022		225		225
2023		167		167
MSRs [Member]
Amortized intangible assets [Abstract]
Gross carrying value	[1]	1,788		1,788		1,725
Accumulated amortization	[1]	(1,160)		(1,160)		(1,066)
Net carrying value	[1]	628		628		659
Actual and Estimated Future Amortization Expense [Abstract]
Amortization expense		46	48	94	97
Estimated Amortization Expense [Abstract]
Remaining 2019		92		92
2020		156		156
2021		122		122
2022		92		92
2023		67		67
Core Deposit Intangibles [Member]
Amortized intangible assets [Abstract]
Gross carrying value	[1]	1,786		1,786		1,786
Accumulated amortization	[1]	(967)		(967)		(851)
Net carrying value	[1]	819		819		935
Actual and Estimated Future Amortization Expense [Abstract]
Amortization expense		58	66	116	134
Estimated Amortization Expense [Abstract]
Remaining 2019		114		114
2020		197		197
2021		165		165
2022		133		133
2023		100		100
Covenant not to Compete [Member]
Amortized intangible assets [Abstract]
Gross carrying value	[1]	125		125		125
Accumulated amortization	[1]	(112)		(112)		(96)
Net carrying value	[1]	13		13		$ 29
Actual and Estimated Future Amortization Expense [Abstract]
Amortization expense		8	$ 8	16	$ 16
Estimated Amortization Expense [Abstract]
Remaining 2019		13		13
2020		0		0
2021		0		0
2022		0		0
2023		$ 0		$ 0
[1] Excludes fully amortized intangible assets.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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