Note 5 - Loans (Detail) - Loans to Related Parties (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Balance at beginning of year	$ 160,069	$ 134,161
Additional loans made	92,249	89,985
Payment received	(79,734)	(64,077)
Balance at end of year	$ 172,584	$ 160,069