Restrictions on Cash and Due From Bank Accounts - Additional Information (Detail) (USD $)	Mar. 31, 2013	Mar. 31, 2012
Cash and Cash Equivalents [Line Items]
Average reserve balance with federal reserve bank	$ 5,500,000	$ 18,200,000
Restricted account	4,500,000	4,500,000
Interest reserve escrow	$ 174,000	$ 228,000

- Definition

The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations.

+ References+ Details