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Loans and Allowance for Loan Losses (Details 8) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	$ 11,450	$ 14,552	$ 11,581	$ 14,663	$ 11,556
Recognized interest income	146	128	264	291	536
Commercial [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	9,438	12,848	9,560	12,956	9,242
Recognized interest income	128	110	227	263	447
Commercial [Member] | Owner occupied RE [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	2,195	1,994	2,204	1,999	2,263
Recognized interest income	26	21	53	43	112
Commercial [Member] | Non-owner occupied RE [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	3,620	5,582	3,721	5,642	4,106
Recognized interest income	48	35	76	86	200
Commercial [Member] | Construction [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment
Recognized interest income
Commercial [Member] | Business [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	3,623	5,272	3,635	5,315	2,873
Recognized interest income	54	54	98	134	135
Consumer [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	2,012	1,704	2,021	1,707	2,314
Recognized interest income	18	18	37	28	89
Consumer [Member] | Real estate [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	1,635	1,153	1,642	1,155	1,854
Recognized interest income	16	12	33	21	81
Consumer [Member] | Home equity [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	197	257	198	257	257
Recognized interest income	1	1	2	1	2
Consumer [Member] | Construction [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment
Recognized interest income
Consumer [Member] | Other [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	180	294	181	295	203
Recognized interest income	$ 1	$ 5	$ 2	$ 6	$ 6

X

- Definition

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5258-111524

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- References

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- Definition

Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524

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