Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 01, 2011	Sep. 30, 2010
Common Stock, Value, Issued	$ 215	$ 215	$ 215	$ 38,000
Deferred Tax Liabilities, Other	1,132	1,097	671		883
First Southeat [Member]
Deferred Tax Liabilities, Other		$ 4,500