Note 13 - Income Taxes (Details) - Deferred Tax Assets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Deferred tax assets:
Allowance for loan and lease losses	$ 6,343	$ 6,011
Discount on purchased loans	4,511
Real estate owned	2,649	3,511
Section 382 net operating loss carryforward	2,252	2,390
Net operating loss carryforward	11,239	10,410
Nonaccrual loan interest	920	806
Other	736	422
Total deferred tax assets	28,650	23,550
Valuation allowance	(1,017)	(22,873)
Deferred tax asset, net of allowance	27,633	677
Deferred tax liabilities:
Office properties	(3,240)	(430)
Core deposit intangible	(2,810)
Unrealized gain on securities available for sale	(426)
Pension plan contribution	(24)	(118)
Prepaid expenses and other	(436)	(129)
Total deferred tax liabilities	(6,936)	(677)
Net deferred tax asset (liability)	$ 20,697