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FHLB Advances, Other Borrowings and Junior Subordinated Notes (Composition of Borrowed Funds) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 217,917,000	$ 69,680,000
Borrowed Funds, Average Balance	$ 140,083,000	$ 50,945,000
Borrowed funds, interest rate during period	3.14%	6.03%
Long-term borrowings
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 180,907,000	$ 49,092,000
Short-term borrowings
Composition of Borrowed Funds [Line Items]
Borrowed funds	37,010,000	20,588,000
Federal funds purchased
Composition of Borrowed Funds [Line Items]
Borrowed funds	0	0
Borrowed Funds, Average Balance	$ 66,000	$ 178,000
Borrowed funds, interest rate during period	1.22%	0.92%
FHLB advances
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 183,500,000	$ 33,578,000
Borrowed Funds, Average Balance	$ 105,276,000	$ 14,485,000
Borrowed funds, interest rate during period	1.40%	0.97%
Line of credit
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 10,000	$ 1,010,000
Borrowed Funds, Average Balance	$ 328,000	$ 2,079,000
Borrowed funds, interest rate during period	3.64%	3.26%
Other borrowings
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 675,000	$ 2,590,000
Borrowed Funds, Average Balance	$ 1,241,000	$ 1,739,000
Borrowed funds, interest rate during period	14.50%	7.64%
Subordinated notes payable
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 23,713,000	$ 22,498,000
Borrowed Funds, Average Balance	$ 23,161,000	$ 22,467,000
Borrowed funds, interest rate during period	6.93%	7.13%
Junior subordinated notes
Composition of Borrowed Funds [Line Items]
Borrowed funds	$ 10,019,000	$ 10,004,000
Borrowed Funds, Average Balance	$ 10,011,000	$ 9,997,000
Borrowed funds, interest rate during period	11.11%	11.07%

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13,16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
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The average effective interest rate during the reporting period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
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