Loans and Allowance for Credit Losses (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Beginning balance	$ 59,848	$ 54,608	$ 59,074	$ 52,687
Loans charged-off	(973)	(1,999)	(1,673)	(3,405)
Recoveries of loans previously charged-off	606	39	683	323
Net loans (charged-off) recoveries	(367)	(1,960)	(990)	(3,082)
Provision for credit losses	1,566	3,888	2,963	6,931
Ending balance	61,047	56,536	61,047	56,536
Individually evaluated for impairment					$ 5,925	$ 5,219
Collectively evaluated for impairment					55,122	51,317
Balance	61,047	56,536	61,047	56,536	61,047	56,536
Commercial Portfolio Segment [Member]
Beginning balance	14,583	13,622	14,700	11,563
Loans charged-off		(1,888)	(137)	(2,693)
Recoveries of loans previously charged-off	255	14	268	86
Net loans (charged-off) recoveries	255	(1,874)	131	(2,607)
Provision for credit losses	(613)	1,638	(606)	4,430
Ending balance	14,225	13,386	14,225	13,386
Individually evaluated for impairment					3,070	2,634
Collectively evaluated for impairment					11,155	10,752
Balance	14,225	13,386	14,225	13,386	14,225	13,386
Income Producing Portfolio Segment [Member]
Beginning balance	21,384	15,794	21,105	14,122
Loans charged-off	(970)	(1)	(1,470)	(591)
Recoveries of loans previously charged-off			50	4
Net loans (charged-off) recoveries	(970)	(1)	(1,420)	(587)
Provision for credit losses	2,894	3,279	3,623	5,537
Ending balance	23,308	19,072	23,308	19,072
Individually evaluated for impairment					2,013	1,697
Collectively evaluated for impairment					21,295	17,375
Balance	23,308	19,072	23,308	19,072	23,308	19,072
Owner Occupied Portfolio Segment [Member]
Beginning balance	4,026	3,931	4,010	3,279
Loans charged-off
Recoveries of loans previously charged-off	1	1	2	2
Net loans (charged-off) recoveries	1	1	2	2
Provision for credit losses	162	270	177	921
Ending balance	4,189	4,202	4,189	4,202
Individually evaluated for impairment					350	450
Collectively evaluated for impairment					3,839	3,752
Balance	4,189	4,202	4,189	4,202	4,189	4,202
Residential Portfolio Segment [Member]
Beginning balance	1,106	1,051	1,284	1,268
Loans charged-off
Recoveries of loans previously charged-off	1	1	3	3
Net loans (charged-off) recoveries	1	1	3	3
Provision for credit losses	(26)	9	(206)	(210)
Ending balance	1,081	1,061	1,081	1,061
Collectively evaluated for impairment					1,081	1,061
Balance	1,081	1,061	1,081	1,061	1,081	1,061
Construction Portfolio Segment [Member]
Beginning balance	17,356	18,466	16,487	21,088
Loans charged-off
Recoveries of loans previously charged-off	342	8	345	204
Net loans (charged-off) recoveries	342	8	345	204
Provision for credit losses	(971)	(1,450)	(105)	(4,268)
Ending balance	16,727	17,024	16,727	17,024
Individually evaluated for impairment					350	350
Collectively evaluated for impairment					16,377	16,674
Balance	16,727	17,024	16,487	21,088	16,727	17,024
Home Equity Portfolio Segment [Member]
Beginning balance	1,088	1,483	1,328	1,292
Loans charged-off		(92)		(96)
Recoveries of loans previously charged-off	2	7	3	8
Net loans (charged-off) recoveries	2	(85)	3	(88)
Provision for credit losses	126	158	(115)	352
Ending balance	1,216	1,556	1,216	1,556
Individually evaluated for impairment					90	88
Collectively evaluated for impairment					1,126	1,468
Balance	1,216	1,556	1,216	1,556	1,216	1,556
Other Consumer Portfolio Segment [Member]
Beginning balance	305	261	160	75
Loans charged-off	(3)	(18)	(66)	(25)
Recoveries of loans previously charged-off	5	8	12	16
Net loans (charged-off) recoveries	2	(10)	(54)	(9)
Provision for credit losses	(6)	(16)	195	169
Ending balance	301	235	301	235
Individually evaluated for impairment					52
Collectively evaluated for impairment					249	235
Balance	$ 301	$ 235	$ 301	$ 235	$ 301	$ 235