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FHLB Advances, Other Borrowings and Junior Subordinated Notes (Composition of Borrowed Funds) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 308,977	$ 217,917
Borrowed Funds, Average Balance	$ 308,943	$ 140,083
Borrowed funds, interest rate during period	2.72%	3.14%
Long-term borrowings
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 172,477	$ 180,907
Short-term borrowings
Composition of Borrowed Funds [Line Items]
Borrowed funds	136,500	37,010
Federal funds purchased
Composition of Borrowed Funds [Line Items]
Borrowed funds	0	0
Borrowed Funds, Average Balance	$ 119	$ 66
Borrowed funds, interest rate during period	2.43%	1.22%
FHLB advances
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 274,500	$ 183,500
Borrowed Funds, Average Balance	$ 274,382	$ 105,276
Borrowed funds, interest rate during period	2.06%	1.40%
Line of credit
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 0	$ 10
Borrowed Funds, Average Balance	$ 3	$ 328
Borrowed funds, interest rate during period	4.47%	3.64%
Other borrowings
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 675	$ 675
Borrowed Funds, Average Balance	$ 675	$ 1,241
Borrowed funds, interest rate during period	7.94%	14.50%
Subordinated notes payable
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 23,769	$ 23,713
Borrowed Funds, Average Balance	$ 23,739	$ 23,161
Borrowed funds, interest rate during period	6.64%	6.93%
Junior subordinated notes
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 10,033	$ 10,019
Borrowed Funds, Average Balance	$ 10,025	$ 10,011
Borrowed funds, interest rate during period	11.10%	11.11%

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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