Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis (USD $)	Dec. 31, 2014		Dec. 31, 2013
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	$ 432,912,000	[1]	$ 131,178,000	[1]
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	0
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities			0
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	193,468,000
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities			98,477,000
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	0
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities			0
US Government Agencies Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	193,468,000
US Government Agencies Debt Securities [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	193,468,000		98,477,000
Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	0
Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities			0
Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	93,561,000
Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities			13,558,000
Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	0
Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities			0
Collateralized Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	93,561,000
Collateralized Mortgage Backed Securities [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	93,561,000		13,558,000
Municipal General Obligation Bonds [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	0
Municipal General Obligation Bonds [Member] | Fair Value, Inputs, Level 1 [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities			0
Municipal General Obligation Bonds [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	122,801,000
Municipal General Obligation Bonds [Member] | Fair Value, Inputs, Level 2 [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities			16,872,000
Municipal General Obligation Bonds [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	10,281,000
Municipal General Obligation Bonds [Member] | Fair Value, Inputs, Level 3 [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities			0
Municipal General Obligation Bonds [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	133,082,000
Municipal General Obligation Bonds [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	133,082,000		16,872,000
Municipal Revenue Bonds [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	0
Municipal Revenue Bonds [Member] | Fair Value, Inputs, Level 1 [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities			0
Municipal Revenue Bonds [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	10,873,000
Municipal Revenue Bonds [Member] | Fair Value, Inputs, Level 2 [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities			916,000
Municipal Revenue Bonds [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	0
Municipal Revenue Bonds [Member] | Fair Value, Inputs, Level 3 [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities			0
Municipal Revenue Bonds [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	10,873,000
Municipal Revenue Bonds [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	10,873,000		916,000
Other Debt Obligations [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	0
Other Debt Obligations [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	1,928,000
Other Debt Obligations [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	0
Other Debt Obligations [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	1,928,000
Other Debt Obligations [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities	1,928,000
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities			0
Mutual Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities			1,355,000
Mutual Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities			0
Mutual Funds [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Available for sale securities			1,355,000
Fair Value, Inputs, Level 1 [Member] | Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Derivative	0		0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Assets and Liabilities measured at fair value on recurring basis	0		0
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Derivative	(253,000)		(264,000)
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Assets and Liabilities measured at fair value on recurring basis	422,378,000		130,914,000
Fair Value, Inputs, Level 3 [Member] | Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Derivative	0		0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Assets and Liabilities measured at fair value on recurring basis	10,281,000		0
Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Derivative	(253,000)		(264,000)
Fair Value, Measurements, Recurring [Member]
Note 18 - Fair Values Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis [Line Items]
Assets and Liabilities measured at fair value on recurring basis	$ 432,659,000		$ 130,914,000

[1] See Note 18 for a description of the fair value hierarchy as well as a disclosure of levels for classes of financial assets and liabilities.