Note 12 - Derivative Financial Instruments (Details) - USD ($) $ in Thousands		Jun. 30, 2016	Dec. 31, 2015
Interest Rate Swaps1 [Member] | Designated as Hedging Instrument [Member]
Derivative Asset, Notional Amount			$ 28,588
Interest rate swaps (hedge)	[1]		48
Interest Rate Swaps2 [Member] | Designated as Hedging Instrument [Member]
Derivative Asset, Notional Amount		159,166	99,955
Interest rate swaps (hedge)	[1]	(9,981)	(1,515)
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member]
Derivative Asset, Notional Amount		36,321	36,321
Interest rate swaps (hedge)	[1]	(6,220)	(2,799)
Interest Rate Swap [Member]
Derivative Asset, Notional Amount		177,500	146,900
Designated as Hedging Instrument [Member]
Derivative Asset, Notional Amount		159,200	128,500
Not Designated as Hedging Instrument [Member]
Derivative Asset, Notional Amount		36,300	36,300
Derivative Asset, Notional Amount		195,487	164,864
Interest rate swaps (hedge)	[1]	$ (16,201)	$ (4,266)

[1] Derivatives in a net positive position are recorded as "Other assets" and derivatives in a net negative position are recorded as "Other liabilities" in the Consolidated Statements of Financial Condition. There were no unrealized losses at June 30, 2016 and December 31, 2015.