Note 9 - Income Taxes - Tax Effects of Temporary Differences Related to Deferred Taxes Included in Other Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Loans acquired	$ 5,900	$ 7,986
Allowance for loan losses	16,841	14,754
Valuation of foreclosed assets	4,020	3,958
Tax NOLs from acquisition	12,642	13,077
Deferred compensation payable	2,983	2,785
Vacation compensation	1,828	1,740
Accrued equity and other compensation	5,138	6,367
Acquired securities	1,201	1,098
Other accrued liabilities	2,301	1,834
Unrealized loss on available-for-sale securities	6,708	9,559
Other	4,610	5,267
Gross deferred tax assets	64,172	68,425
Deferred tax liabilities:
Goodwill and other intangible amortization	(32,189)	(29,601)
Accumulated depreciation	(6,403)	(5,370)
Other	(7,369)	(5,877)
Gross deferred tax liabilities	(45,961)	(40,848)
Net deferred tax asset, included in other assets	$ 18,211	$ 27,577