Note 15 - Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

	Year Ended December 31,
	2018		2017		2016
Income taxes paid	$	1,088	$	7,173	$	5,076
Interest paid	$	2,724	$	727	$	694