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Loans - Aging Analysis (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Aged analysis of past due loans
Total Past Due	$ 8,687	$ 5,139
Current	1,467,681	1,458,387
Nonaccrual	11,653	15,283
Total Loans	1,488,021	1,478,809	$ 1,138,838
Recorded Investment 90 days or Greater Past Due and Accruing	57
30 to 59 Days Past Due
Aged analysis of past due loans
Total Past Due	3,464	3,959
60 to 89 Days Past Due
Aged analysis of past due loans
Total Past Due	5,166	1,180
90 Days or Greater Past Due
Aged analysis of past due loans
Total Past Due	57
Multifamily
Aged analysis of past due loans
Total Past Due	5,004
Current	87,136	96,502
Total Loans	92,140	96,502
Multifamily | 60 to 89 Days Past Due
Aged analysis of past due loans
Total Past Due	5,004
Commercial
Aged analysis of past due loans
Total Past Due		131
Current	233,697	227,742
Nonaccrual	225	240
Total Loans	233,922	228,113	120,460
Commercial | 30 to 59 Days Past Due
Aged analysis of past due loans
Total Past Due		57
Commercial | 60 to 89 Days Past Due
Aged analysis of past due loans
Total Past Due		74
Lease financing receivables
Aged analysis of past due loans
Total Past Due	939	286
Current	63,184	54,799
Nonaccrual	484	366
Total Loans	64,607	55,451	30,647
Lease financing receivables | 30 to 59 Days Past Due
Aged analysis of past due loans
Total Past Due	939
Lease financing receivables | 60 to 89 Days Past Due
Aged analysis of past due loans
Total Past Due		286
Real estate - commercial
Aged analysis of past due loans
Total Loans	713,358		598,943
Real estate - commercial | Owner occupied general purpose
Aged analysis of past due loans
Total Past Due	175	758
Current	135,289	135,599
Nonaccrual	659	879
Total Loans	136,123	137,236
Real estate - commercial | Owner occupied general purpose | 30 to 59 Days Past Due
Aged analysis of past due loans
Total Past Due	175	758
Real estate - commercial | Owner occupied special purpose
Aged analysis of past due loans
Current	172,647	177,755
Nonaccrual	375	385
Total Loans	173,022	178,140
Real estate - commercial | Non-owner occupied general purpose
Aged analysis of past due loans
Total Past Due		1,046
Current	220,541	229,315
Nonaccrual	1,088	1,930
Total Loans	221,629	232,291
Real estate - commercial | Non-owner occupied general purpose | 30 to 59 Days Past Due
Aged analysis of past due loans
Total Past Due		667
Real estate - commercial | Non-owner occupied general purpose | 60 to 89 Days Past Due
Aged analysis of past due loans
Total Past Due		379
Real estate - commercial | Non-owner occupied special purpose
Aged analysis of past due loans
Current	121,661	118,052
Nonaccrual		1,013
Total Loans	121,661	119,065
Real estate - commercial | Retail properties
Aged analysis of past due loans
Current	45,184	53,474
Nonaccrual	1,161	1,179
Total Loans	46,345	54,653
Real estate - commercial | Farm
Aged analysis of past due loans
Total Past Due	18	1,353
Current	14,560	13,509
Total Loans	14,578	14,862
Real estate - commercial | Farm | 30 to 59 Days Past Due
Aged analysis of past due loans
Total Past Due	18	1,353
Real estate - residential
Aged analysis of past due loans
Total Loans	373,477		351,849
Real estate - residential | Investor
Aged analysis of past due loans
Total Past Due	312	237
Current	59,785	54,924
Nonaccrual	749	936
Total Loans	60,846	56,097
Real estate - residential | Investor | 30 to 59 Days Past Due
Aged analysis of past due loans
Total Past Due	312	237
Real estate - residential | Owner occupied
Aged analysis of past due loans
Total Past Due	1,403	274
Current	112,972	116,900
Nonaccrual	5,249	6,452
Total Loans	119,624	123,626
Real estate - residential | Owner occupied | 30 to 59 Days Past Due
Aged analysis of past due loans
Total Past Due	1,403	274
Real estate - residential | Revolving and junior liens
Aged analysis of past due loans
Total Past Due	754	630
Current	98,734	99,374
Nonaccrual	1,379	1,622
Total Loans	100,867	101,626
Recorded Investment 90 days or Greater Past Due and Accruing	57
Real estate - residential | Revolving and junior liens | 30 to 59 Days Past Due
Aged analysis of past due loans
Total Past Due	535	225
Real estate - residential | Revolving and junior liens | 60 to 89 Days Past Due
Aged analysis of past due loans
Total Past Due	162	405
Real estate - residential | Revolving and junior liens | 90 Days or Greater Past Due
Aged analysis of past due loans
Total Past Due	57
Consumer
Aged analysis of past due loans
Total Past Due	6	46
Current	2,897	3,191
Nonaccrual	10
Total Loans	2,913	3,237	2,663
Consumer | 30 to 59 Days Past Due
Aged analysis of past due loans
Total Past Due	6	10
Consumer | 60 to 89 Days Past Due
Aged analysis of past due loans
Total Past Due		36
All other
Aged analysis of past due loans
Total Past Due		14
Current	12,695	13,176
Total Loans	12,695	13,190	13,945
All other | 30 to 59 Days Past Due
Aged analysis of past due loans
Total Past Due		14
Construction Loans | Real estate - commercial
Aged analysis of past due loans
Total Loans	87,049		$ 20,331
Construction Loans | Real estate - commercial | Homebuilder
Aged analysis of past due loans
Current	3,226	3,883
Total Loans	3,226	3,883
Construction Loans | Real estate - commercial | Land
Aged analysis of past due loans
Current	2,900	3,029
Total Loans	2,900	3,029
Construction Loans | Real estate - commercial | Commercial speculative
Aged analysis of past due loans
Current	27,061	22,654
Nonaccrual	70	74
Total Loans	27,131	22,728
Construction Loans | Real estate - commercial | All other
Aged analysis of past due loans
Total Past Due	76	364
Current	53,512	34,509
Nonaccrual	204	207
Total Loans	53,792	35,080
Construction Loans | Real estate - commercial | All other | 30 to 59 Days Past Due
Aged analysis of past due loans
Total Past Due	$ 76	$ 364

X

- Definition

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
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+ References

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-URI http://asc.fasb.org/extlink&oid=65880944

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-URI http://asc.fasb.org/extlink&oid=65880944

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+ References

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-Publisher FASB
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