Note 12 - Deferred Tax Assets (Details) - USD ($)	Jun. 30, 2016	Dec. 31, 2015
Allowance for loan and lease losses	$ 7,818,000	$ 7,580,000
Discount on purchased loans	2,298,000	2,584,000
Real estate owned	1,557,000	1,743,000
Section 382 net operating loss carryforward	2,045,000	2,114,000
Net operating loss carryforward	4,801,000	7,710,000
Nonaccrual loan interest	1,356,000	1,266,000
Other	1,663,000	1,365,000
Total deferred tax assets	21,538,000	24,362,000
Valuation allowance	0	(897,000)
Deferred tax asset, net of allowance	21,538,000	23,465,000
Office properties	(2,871,000)	(2,990,000)
Core deposit intangible	(2,428,000)	(2,562,000)
Unrealized gain on securities available for sale	(1,123,000)	(239,000)
Other	(1,287,000)	(961,000)
Total deferred tax liabilities	(7,709,000)	(6,752,000)
Net deferred tax asset	$ 13,829,000	$ 16,713,000