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Note 12 - Tax Rate Reconciliation (Details)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
U.S. federal statutory rate 35.00% 35.00% 35.00%
State and local taxes, net of federal benefit 1.40% (1.60%) 3.00%
Goodwill impairment (17.10%) (52.00%)
Change in unrecognized tax benefits 0.10% (0.10%) (0.20%)
All other, net 0.90% 0.40% 3.00%
Effective income tax rate 20.30% (18.30%) 40.80%