Other Real Estate Owned (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Purchased OREO
Beginning balance	$ 17,370	$ 22,416
Purchased OREO	1,203	0
Transfers of loans	4,970	7,935
Impairments	(1,199)	(1,631)
Dispositions	(10,438)	(11,071)
Other	(382)	(279)
Ending balance	11,524	17,370
Non Purchased OREO
Beginning balance	5,929	12,986
Purchased OREO	0	0
Transfers of loans	1,729	935
Impairments	(694)	(1,484)
Dispositions	(3,027)	(6,458)
Other	473	(50)
Ending balance	4,410	5,929
Total OREO
Beginning balance	23,299	35,402
Purchased OREO	1,203	0
Transfers of loans	6,699	8,870
Impairments	(1,893)	(3,115)
Dispositions	(13,465)	(17,529)
Other	91	(329)
Ending balance	$ 15,934	23,299
Other real estate covered impairments		3,115
Statements of Income
Total OREO
Other real estate covered impairments		3,018
FDIC Loss Share Indemnification Asset
Total OREO
Other real estate covered impairments		$ 97