Note 13 - Income Taxes (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2019			2018			2019			2018
Income tax expense	$	18		$	15		$	21		$	21
Effective income tax rate		29	%		27	%		45	%		26	%