Note 3 - Supplemental Cash Flow Information (Tables)

6 Months Ended

Jun. 30, 2018

Notes Tables

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

	Six Months Ended
	June 30,
	2018		2017
	(in thousands)
Cash paid for:
Interest	$	668	$	6
Income taxes, net of refunds		784		1,434
Non-cash investing and financing activities:
Capital additions accrued but not yet paid	$	331	$	495