Loans (Details 3) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Allowance for loan losses
Beginning balance	$ 12,550	$ 11,319	$ 12,315	$ 10,852
Provision for loan losses	750	950	1,525	2,000
Loans charged off	(777)	(725)	(1,559)	(1,668)
Recoveries	241	202	483	562
Ending balance	12,764	11,746	12,764	11,746
Commercial real estate
Allowance for loan losses
Beginning balance	4,404	3,638	4,260	3,577
Provision for loan losses	(96)	365	46	442
Loans charged off	0	(67)	0	(207)
Recoveries	31	18	33	142
Ending balance	4,339	3,954	4,339	3,954
Commercial
Allowance for loan losses
Beginning balance	2,062	1,846	2,011	1,874
Provision for loan losses	(61)	198	86	215
Loans charged off	(65)	(113)	(162)	(215)
Recoveries	1	5	2	62
Ending balance	1,937	1,936	1,937	1,936
Residential real estate
Allowance for loan losses
Beginning balance	2,601	2,321	2,521	2,205
Provision for loan losses	93	5	168	114
Loans charged off	(68)	(36)	(124)	(42)
Recoveries	25	20	86	33
Ending balance	2,651	2,310	2,651	2,310
Consumer
Allowance for loan losses
Beginning balance	2,924	2,813	2,848	2,766
Provision for loan losses	586	464	1,113	1,040
Loans charged off	(644)	(509)	(1,273)	(1,204)
Recoveries	184	159	362	325
Ending balance	3,050	2,927	3,050	2,927
Unallocated
Allowance for loan losses
Beginning balance	559	701	675	430
Provision for loan losses	228	(82)	112	189
Loans charged off	0	0	0	0
Recoveries	0	0	0	0
Ending balance	$ 787	$ 619	$ 787	$ 619

Provision (reversal) for loan losses expensed.

No definition available.

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- Definition

Amount of recovery of financing receivables doubtful of collection that were previously charged off.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of direct write-downs of financing receivables charged against the allowance.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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