Note 9 - Business Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Revenue from External Customers by Geographic Areas [Table Text Block]

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2021		2020		2021		2020
Consolidated Revenue:
United States	$	6,338	$	4,977	$	17,340	$	14,441
Brazil		180		62		639		1,207
Other		155		135		494		377
Total Revenue	$	6,673	$	5,174	$	18,473	$	16,025