Deferred Tax Assets and Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Deferred tax assets:
Net operating loss carry-forward	$ 25,719	$ 25,460
Allowance for loan losses	8,895	9,843
Other real estate owned write-down	9,658	9,478
Alternative minimum tax credit carry-forward	692	692
Net assets from acquisitions	650	644
Other than temporary impairment on securities	46	89
Net unrealized loss on securities	597	1,067
New market tax credit carry-forward	208	208
Nonaccrual loan interest	879	911
Amortization of non-compete agreements	16	16
Other	1,643	1,640
Deferred Tax Assets, Gross, Total	49,003	50,048
Deferred tax liabilities:
FHLB stock dividends	928	1,276
Fixed assets	309	333
Originated mortgage servicing rights	69	75
Other	555	570
Deferred Tax Liabilities, Net, Total	1,861	2,254
Net deferred tax assets before valuation allowance	47,142	47,794
Valuation allowance	(47,142)	(47,794)
Net deferred tax asset