Note 22 - Holding Company Condensed Financial Information (Details) - Condensed Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Activities
Net income (loss)	$ 9,355	$ 27,731	$ (1,864)
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities
Deferred income tax expense (benefit)	4,666	(19,834)	2,721
Increase in other assets	(14)	1,207	1,502
Decrease in other liabilities	(1,249)	151	(1,031)
Net cash provided by (used for) operating activities	18,824	24,778	37,096
Investing Activities
Net cash used for investing activities	(37,529)	(10,045)	(30,300)
Financing Activities
Dividends paid on common stock	(1,279)
Taxes paid related to net share settlement of equity awards	(13)
Proceeds from exercise of stock options		124
Net cash provided by (used for) financing activities	17,414	(77,940)	(8,363)
Net change in cash and due from banks	(1,291)	(63,207)	(1,567)
Cash and due from banks, beginning of period	38,178	101,385	102,952
Cash and due from banks, end of period	36,887	38,178	101,385
Holding Company [Member]
Operating Activities
Net income (loss)	9,355	27,731	(1,864)
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities
Increase in equity in undistributed (income) loss of subsidiary	(8,208)	(27,509)	1,738
Deferred income tax expense (benefit)	214	(364)
Increase in other assets	(29)
Decrease in other liabilities		(23)	(55)
Net cash provided by (used for) operating activities	1,332	(165)	(181)
Investing Activities
Capital contribution in subsidiary			(650)
Net cash used for investing activities			(650)
Financing Activities
Dividends paid on common stock	(1,279)
Taxes paid related to net share settlement of equity awards	(13)
Proceeds from exercise of stock options		124
Net cash provided by (used for) financing activities	(1,292)	124
Net change in cash and due from banks	40	(41)	(831)
Cash and due from banks, beginning of period	87	128	959
Cash and due from banks, end of period	$ 127	$ 87	$ 128