Loans - Risk Category by Class of Loans (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Risk category by class of loans
Financing Receivable Risk Category	$ 1,258,510	$ 1,231,994
Owner Occupied [Member]
Risk category by class of loans
Financing Receivable Risk Category	168,371	181,541
Non Owner Occupied [Member]
Risk category by class of loans
Financing Receivable Risk Category	425,105	369,245
Commercial [Member]
Risk category by class of loans
Financing Receivable Risk Category	47,039	40,708
Residential [Member]
Risk category by class of loans
Financing Receivable Risk Category	41,272	34,019
Multifamily [Member]
Risk category by class of loans
Financing Receivable Risk Category	226,898	196,199
1-4 family [Member]
Risk category by class of loans
Financing Receivable Risk Category	61,440	89,246
Home Equity [Member]
Risk category by class of loans
Financing Receivable Risk Category	1,146	1,212
Commercial & Industrial [Member]
Risk category by class of loans
Financing Receivable Risk Category	258,578	288,809
Lease Financing & Other [Member]
Risk category by class of loans
Financing Receivable Risk Category	28,661	31,015
Pass [Member]
Risk category by class of loans
Financing Receivable Risk Category	1,164,176	1,099,147
Pass [Member] | Owner Occupied [Member]
Risk category by class of loans
Financing Receivable Risk Category	139,108	132,181
Pass [Member] | Non Owner Occupied [Member]
Risk category by class of loans
Financing Receivable Risk Category	399,009	356,960
Pass [Member] | Commercial [Member]
Risk category by class of loans
Financing Receivable Risk Category	46,160	29,303
Pass [Member] | Residential [Member]
Risk category by class of loans
Financing Receivable Risk Category	37,931	28,936
Pass [Member] | Multifamily [Member]
Risk category by class of loans
Financing Receivable Risk Category	222,147	193,083
Pass [Member] | 1-4 family [Member]
Risk category by class of loans
Financing Receivable Risk Category	42,158	58,480
Pass [Member] | Home Equity [Member]
Risk category by class of loans
Financing Receivable Risk Category	34
Pass [Member] | Commercial & Industrial [Member]
Risk category by class of loans
Financing Receivable Risk Category	249,238	270,362
Pass [Member] | Lease Financing & Other [Member]
Risk category by class of loans
Financing Receivable Risk Category	28,391	29,842
Special Mention [Member]
Risk category by class of loans
Financing Receivable Risk Category	33,472	41,778
Special Mention [Member] | Owner Occupied [Member]
Risk category by class of loans
Financing Receivable Risk Category	6,342	6,447
Special Mention [Member] | Non Owner Occupied [Member]
Risk category by class of loans
Financing Receivable Risk Category	14,024	4,438
Special Mention [Member] | Commercial [Member]
Risk category by class of loans
Financing Receivable Risk Category		5,349
Special Mention [Member] | Residential [Member]
Risk category by class of loans
Financing Receivable Risk Category	3,341	891
Special Mention [Member] | Multifamily [Member]
Risk category by class of loans
Financing Receivable Risk Category	2,550
Special Mention [Member] | 1-4 family [Member]
Risk category by class of loans
Financing Receivable Risk Category	2,008	20,439
Special Mention [Member] | Home Equity [Member]
Risk category by class of loans
Financing Receivable Risk Category
Special Mention [Member] | Commercial & Industrial [Member]
Risk category by class of loans
Financing Receivable Risk Category	5,207	3,368
Special Mention [Member] | Lease Financing & Other [Member]
Risk category by class of loans
Financing Receivable Risk Category		846
Substandard [Member]
Risk category by class of loans
Financing Receivable Risk Category	60,862	91,069
Substandard [Member] | Owner Occupied [Member]
Risk category by class of loans
Financing Receivable Risk Category	22,921	42,913
Substandard [Member] | Non Owner Occupied [Member]
Risk category by class of loans
Financing Receivable Risk Category	12,072	7,847
Substandard [Member] | Commercial [Member]
Risk category by class of loans
Financing Receivable Risk Category	879	6,056
Substandard [Member] | Residential [Member]
Risk category by class of loans
Financing Receivable Risk Category		4,192
Substandard [Member] | Multifamily [Member]
Risk category by class of loans
Financing Receivable Risk Category	2,201	3,116
Substandard [Member] | 1-4 family [Member]
Risk category by class of loans
Financing Receivable Risk Category	17,274	10,327
Substandard [Member] | Home Equity [Member]
Risk category by class of loans
Financing Receivable Risk Category	1,112	1,212
Substandard [Member] | Commercial & Industrial [Member]
Risk category by class of loans
Financing Receivable Risk Category	4,133	15,079
Substandard [Member] | Lease Financing & Other [Member]
Risk category by class of loans
Financing Receivable Risk Category	270	327
Doubtful [Member]
Risk category by class of loans
Financing Receivable Risk Category
Doubtful [Member] | Owner Occupied [Member]
Risk category by class of loans
Financing Receivable Risk Category
Doubtful [Member] | Non Owner Occupied [Member]
Risk category by class of loans
Financing Receivable Risk Category
Doubtful [Member] | Commercial [Member]
Risk category by class of loans
Financing Receivable Risk Category
Doubtful [Member] | Residential [Member]
Risk category by class of loans
Financing Receivable Risk Category
Doubtful [Member] | Multifamily [Member]
Risk category by class of loans
Financing Receivable Risk Category
Doubtful [Member] | 1-4 family [Member]
Risk category by class of loans
Financing Receivable Risk Category
Doubtful [Member] | Home Equity [Member]
Risk category by class of loans
Financing Receivable Risk Category
Doubtful [Member] | Commercial & Industrial [Member]
Risk category by class of loans
Financing Receivable Risk Category
Doubtful [Member] | Lease Financing & Other [Member]
Risk category by class of loans
Financing Receivable Risk Category