Other Real Estate Owned - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013 Property SecurityLoan Family
Real Estate [Abstract]
Recorded investment in OREO	$ 913,000
Transfer of foreclosed property from loans to OREO, number of loans	10
Transfer of foreclosed property from loans to OREO	1,600,000
ALLL related to transferred foreclosed property	4,000
Sold properties	23
Cost of properties sold	3,700,000
Net loss from sale of property	130,000
OREO balance of property	3
Secured real estate properties	2
Minimum number of family	1
Maximum number of family	4
Residential real estate amount	163,000
Improved commercial land	$ 750,000