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Loans (Details 3) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Allowance for loan losses
Beginning balance	$ 10,852	$ 8,978	$ 8,978
Provision for loan losses	1,050	780	0
Loans charged off	(943)	(578)
Recoveries	360	210
Ending balance	11,319	9,390	10,852
Commercial real estate
Allowance for loan losses
Beginning balance	3,577	3,127	3,127
Provision for loan losses	77	43
Loans charged off	(140)	0
Recoveries	124	11
Ending balance	3,638	3,181	3,577
Commercial
Allowance for loan losses
Beginning balance	1,874	1,373	1,373
Provision for loan losses	17	64
Loans charged off	(102)	0
Recoveries	57	15
Ending balance	1,846	1,452	1,874
Residential real estate
Allowance for loan losses
Beginning balance	2,205	1,845	1,845
Provision for loan losses	109	75
Loans charged off	(6)	(34)
Recoveries	13	28
Ending balance	2,321	1,914	2,205
Consumer
Allowance for loan losses
Beginning balance	2,766	2,160	2,160
Provision for loan losses	576	446
Loans charged off	(695)	(544)
Recoveries	166	156
Ending balance	2,813	2,218	2,766
Unallocated
Allowance for loan losses
Beginning balance	430	473	473
Provision for loan losses	271	152
Loans charged off	0	0
Recoveries	0	0
Ending balance	$ 701	$ 625	$ 430

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Provision (reversal) for loan losses expensed.

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
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Amount of direct write-downs of financing receivables charged against the allowance.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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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.

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-Publisher FASB
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