Note 8 - Income Taxes

3 Months Ended

Mar. 31, 2019

Notes to Financial Statements

Income Tax Disclosure [Text Block]

NOTE

8

—

INCOME TAXES

Income tax provisions for interim quarterly periods are based on an estimated annual effective income tax rate calculated separately from the effect of significant, infrequent or unusual items related specifically to interim periods. Income tax expense for the

three

months ended

March 31, 2019

was

$1.4

 million, an effective tax rate of

16.5%.

Income tax expense for the

three

months ended

March 31, 2018

was

$0.7

million, an effective tax rate of

12.4%.