Other Assets - Other Assets (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Deferred tax asset, net	$ 1,562	$ 1,626
Servicing asset, net	1,464	1,261
Deferred borrowing costs, net	1,374	1,218
Investment in a variable interest entity	827	820
Interest receivable	778	620
Retained interests in transferred assets	739	773
Prepaid expenses and deposits	371	330
Real estate owned		739
Other	316	99
Other Assets, Total	$ 7,431	$ 7,486