Note 8 - Income Taxes (Details) - Tax Effects of Temporary Differences Related to Deferred Taxes Included in Other Liabilities: - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Deferred tax assets:
Loans acquired	$ 28,982	$ 16,925
FDIC true-up liability	0	2,792
Allowance for loan losses	12,373	11,749
Valuation of foreclosed assets	14,529	14,167
Tax NOLs from acquisition	11,819	11,819
Deferred compensation payable	2,722	1,536
Vacation compensation	2,036	1,456
Accumulated depreciation		1,937
Loan interest	2,304	1,693
Accrued pension and profit sharing	1,809	1,793
Accrued equity and other compensation	4,805	3,356
Acquired securities	2,065	2,568
Accrued merger related costs	2,482	2,464
Basis difference in partnership investments	800	617
Unrealized loss on available-for-sale securities	0	862
Other	4,704	1,666
Gross deferred tax assets	91,430	77,400
Deferred tax liabilities:
Goodwill and other intangible amortization	(25,686)	(16,953)
FDIC acquired assets	(696)	(4,377)
Deferred loan fee income and expenses, net	(970)	(1,515)
FHLB stock dividends	(2,240)	(1,160)
Limitations under IRC Sec 382	(8,087)	(11,169)
Prepayment liabilities	(1,993)	(1,141)
Accumulated depreciation	(1,084)	0
Other	(1,050)	(337)
Gross deferred tax liabilities	(41,806)	(36,652)
Net deferred tax asset, included in other assets	$ 49,624	$ 40,748