Contractual Maturities of FHLB Borrowings, by Year (Detail) (USD $) In Thousands, unless otherwise specified	0 Months Ended
	Sep. 30, 2014	Sep. 30, 2014
Contractual maturities of wholesale repurchase agreements and FHLB borrowings
2014
2015
2016	25,000	25,000
2017	65,000	65,000
2018
2019 and thereafter	75,000	75,000
Total	165,000	165,000
Wholesale Repurchase Agreements
Contractual maturities of wholesale repurchase agreements and FHLB borrowings
2014
2015
2016		25,000
2018
2019 and thereafter		25,000
Total		50,000
Weighted average maturity (in years)	3 years 3 months 29 days
FHLB Borrowings
Contractual maturities of wholesale repurchase agreements and FHLB borrowings
2014
2015
2017		65,000
2018
2019 and thereafter		50,000
Total		$ 115,000
Weighted average maturity (in years)	4 years 2 months 9 days