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Loans - TDR (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($) contract	Sep. 30, 2015 USD ($) contract	Sep. 30, 2016 USD ($) contract	Sep. 30, 2015 USD ($) contract	Dec. 31, 2015 USD ($)
Troubled debt restructurings - modified during the period
# of contracts | contract	1	4	8	10
Pre-modification recorded investment	$ 70	$ 423	$ 1,090	$ 960
Post-modification recorded investment	$ 70	$ 360	$ 949	$ 903
TDR's defaulted
# of contracts | contract	0	0	0	0
Other information
Total Past Due	$ 3,869		$ 3,869		$ 3,717
Other
Troubled debt restructurings - modified during the period
# of contracts | contract	1	3	1	3
Pre-modification recorded investment	$ 70	$ 378	$ 70	$ 378
Post-modification recorded investment	70	$ 349	$ 70	$ 349
HAMP
Troubled debt restructurings - modified during the period
# of contracts | contract		1		4
Pre-modification recorded investment		$ 45		$ 178
Post-modification recorded investment		$ 11		$ 142
Real estate - commercial | Other
Troubled debt restructurings - modified during the period
# of contracts | contract			2
Pre-modification recorded investment			$ 312
Post-modification recorded investment			211
Real estate - commercial | Owner occupied special purpose
Other information
Total Past Due					358
Real estate - commercial | Owner occupied general purpose
Other information
Total Past Due	96		96		771
Real estate - commercial | Non-owner occupied general purpose
Other information
Total Past Due	789		789
Real estate - residential | Investor
Other information
Total Past Due	1,005		1,005		101
Real estate - residential | Owner occupied
Other information
Total Past Due	70		$ 70		1,529
Real estate - residential | Owner occupied | Other
Troubled debt restructurings - modified during the period
# of contracts | contract				3
Pre-modification recorded investment				$ 404
Post-modification recorded investment				$ 412
Real estate - residential | Owner occupied | HAMP
Troubled debt restructurings - modified during the period
# of contracts | contract			1
Pre-modification recorded investment			$ 239
Post-modification recorded investment			235
Real estate - residential | Revolving and junior liens
Other information
Total Past Due	243		$ 243		412
Real estate - residential | Revolving and junior liens | HAMP
Troubled debt restructurings - modified during the period
# of contracts | contract			4
Pre-modification recorded investment			$ 469
Post-modification recorded investment			433
Commercial
Other information
Total Past Due	182		182		394
90 Days or Greater Past Due
Other information
Total Past Due	483		483		$ 65
90 Days or Greater Past Due | Real estate - residential | Investor
Other information
Total Past Due	454		454
90 Days or Greater Past Due | Real estate - residential | Revolving and junior liens
Other information
Total Past Due	$ 29		$ 29

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