Note 13 - Additional Cash Flow Information (Detail) - In connection with the Truman, Excel, SWCB and SSB acquisitions, accounted for by using the purchase method, the Company acquired assets and assumed liabilities as follows: (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2010
Assets acquired	$ 433,710	$ 559,629
Liabilities assumed	430,299	538,315
Bargain purchase gains	$ 3,411	$ 21,314