Note 4 - Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2022

Notes Tables

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

	Three Months Ended
	March 31,
	2022		2021
Cash paid for:
Interest	$	314	$	13
Income taxes, net of refunds		210		6
Non-cash investing and financing activities:
Capital additions accrued but not yet paid	$	185	$	200