Note 7 - Deposits (Tables)

12 Months Ended

Dec. 31, 2012

Deposit Composition and Interest Rate [Table Text Block]

	2012					2011					2010
(dollars in thousands)			Average					Average					Average
	Balance		Rate			Balance		Rate			Balance		Rate
Noninterest bearing demand	$	881,390		-		$	688,506		-		$	400,291		-
Interest bearing transaction		113,813		0.34	%		80,105		0.38	%		61,771		0.46	%
Savings and money market		1,374,869		0.48	%		1,068,370		0.72	%		737,071		1.02	%
Time, $100,000 or more		232,875		1.12	%		332,470		1.08	%		344,747		1.54	%
Other time		294,275		0.71	%		222,644		1.72	%		182,918		1.48	%
Total	$	2,897,222				$	2,392,095				$	1,726,798

Investments Classified by Contractual Maturity Date [Table Text Block]

(dollars in thousands)	2012		2011		2010
Three months or less	$	102,022	$	132,387	$	135,309
More than three months through six months		88,156		112,167		111,476
More than six months through twelve months		104,122		89,486		157,209
Over twelve months		232,850		221,074		123,671
Total	$	527,150	$	555,114	$	527,665

Interest Expense on Deposits [Table Text Block]

(dollars in thousands)	2012		2011		2010
Interest bearing transaction	$	289	$	236	$	209
Savings and money market		5,946		8,488		7,847
Time, $100,000 or more		2,729		5,695		5,958
Other time		3,093		2,829		2,872
Total	$	12,057	$	17,248	$	16,886