Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2021

Supplemental Cash Flow Elements [Abstract]

Components of supplemental cash flow information

Supplemental cash flow information is as follows (in thousands):

        

	Three months ended March 31,
	2021		2020
Supplemental cash payment information:
Interest paid	$	6	$	4
Income taxes (received, net of payments) paid	(351)		(32)