Deferred Tax Assets and Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Deferred tax assets:
Allowance for loan losses	$ 3,235	$ 5,633
Accrued liabilities	191	181
State income taxes	40	39
Deferred compensation	404	339
Stock compensation	251	218
Real estate owned	623	0
Unrealized gain/loss on loans held for sale	131	183
Net operating loss carryforward	5,767	4,847
Non-accrual loan interest	501	637
Basis difference on fixed assets	117	101
Partnership investment	0	10
General business credit	470	332
Alternative minimum tax credit	113	119
Other	29	2
Total deferred tax assets	11,872	12,641
Deferred tax liabilities:
Deferred loan fees/costs	(1,754)	(1,878)
Real estate owned	0	(465)
Net unrealized appreciation on available-for-sale securities	(295)	(400)
FHLB stock dividends	(644)	(644)
Mortgage servicing rights	(58)	(149)
Partnership investment	(5)	0
Prepaid expenses	(82)	(27)
Total deferred tax liabilities	(2,838)	(3,563)
Valuation allowance	(9,034)	(8,228)
Net deferred tax assets	$ 0	$ 850