Discontinued Operations - Summary of Financial Information for Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Interest on fees and loans									$ 29,918	$ 33,148	$ 35,084
Net interest income	8,494	8,496	8,287	8,506	8,754	9,115	8,714	8,525	33,783	35,108	34,155
Total noninterest income	719	974	1,025	824	2,713	1,419	1,182	1,279	3,542	6,593	3,891
Salaries and related benefits									12,035	11,030	9,957
Occupancy and equipment expense									2,205	2,058	2,009
Professional service fees									1,241	1,078	1,016
Other expenses									5,309	5,206	4,147
Total noninterest expense	5,693	5,937	5,149	5,462	5,007	5,484	5,316	5,825	22,241	21,632	19,927
Loss on disposal of Mortgage Subsidiary									(746)
Income from discontinued operations					0	(746)	622	659	0	535	1,512
Income tax expense associated with income from discontinued operations					0	(239)	271	299	0	331	392
Net income from discontinued operations					0	(507)	351	360	0	204	1,120
Less: Net income from discontinued operations attributable to noncontrolling interest									0	348	549
Net (Loss) income from discontinued operations attributable to controlling interest					0	(507)	179	184	0	(144)	571
Discontinued operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Interest on fees and loans										969	1,054
Interest on other borrowings										1,032	1,122
Net interest income										(63)	(68)
Mortgage banking revenue, net										10,614	13,879
Total noninterest income										10,614	13,879
Salaries and related benefits										6,807	8,832
Occupancy and equipment expense										672	962
Professional service fees										695	1,252
Other expenses										1,096	1,253
Total noninterest expense										9,270	12,299
Income from operations										1,281	1,512
Loss on disposal of Mortgage Subsidiary										(746)	0
Income from discontinued operations										535	1,512
Income tax expense associated with income from discontinued operations										331	392
Net income from discontinued operations										204	1,120
Less: Net income from discontinued operations attributable to noncontrolling interest										348	549
Net (Loss) income from discontinued operations attributable to controlling interest										$ (144)	$ 571