Note 13 - Segment Information (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

	2020		2019		2018
Revenue:
United States	$	130,305	$	124,369	$	115,451
Canada		2,972		3,613		4,235
Total	$	133,277	$	127,982	$	119,686
Long-lived assets:
United States	$	77,448	$	78,906	$	77,330
Canada		1,863		2,622		2,291
Total	$	79,311	$	81,528	$	79,621
Total assets:
United States	$	128,319	$	95,668	$	91,080
Canada		5,104		15,017		16,952
Total	$	133,423	$	110,685	$	108,032