Acquisitions and FDIC Indemnification Asset (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered					$ 2,009	$ 4,881	$ 5,503	$ 5,602
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion		$ 0	$ 0
Loans and Leases Receivable, Disposals	$ (26)	(135)	(2,898)	$ (234)
Total Covered Assets	1,983	5,368	1,983	5,368
Consumer Loan [Member]
Business Acquisition [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered					0	1,430	1,467	1,480
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion		0	0
Loans and Leases Receivable, Disposals	0	(11)	(1,430)	(24)
Total Covered Assets	0	1,456	0	1,456
Commercial Loan [Member]
Business Acquisition [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount, Covered					$ 2,009	$ 3,451	$ 4,036	$ 4,122
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion		0	0
Loans and Leases Receivable, Disposals	(26)	(124)	(1,468)	(210)
Total Covered Assets	$ 1,983	$ 3,912	$ 1,983	$ 3,912