Non Purchased Loans (Details 4) - Non-Purchased $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) loan	Dec. 31, 2015 USD ($) loan
Number of Loans
Beginning balance (loans) | loan	59	49
Additional loans with concessions (loans) | loan	16	39
Reclassified as nonperforming (loans) | loan	(4)	(6)
Paid in full (loans) | loan	(16)	(21)
Charge-offs (loans) | loan	(1)	(1)
Transfer to other real estate owned (loans) | loan	(1)	0
Principal paydowns (loans) | loan	0	0
Lapse of concession period (loans) | loan	0	0
TDR reclassified as performing loan (loans) | loan	0	(1)
Ending balance (loans) | loan	53	59
Recorded Investment
Beginning balance | $	$ 10,252	$ 13,879
Additional loans with concessions | $	2,075	10,077
Reclassified as nonperforming | $	(1,406)	(2,870)
Paid in full | $	(2,233)	(8,127)
Charge-offs | $	(275)	(56)
Transfer to other real estate owned | $	(51)	0
Principal paydowns | $	(915)	(428)
Lapse of concession period | $	0	0
TDR reclassified as performing loan | $	0	(2,223)
Ending balance | $	$ 7,447	$ 10,252