Note 2. Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Allowance for doubtful accounts, beginning	$ 700	$ 534
Bad debt expense	304	753
Write-offs	(347)	(587)
Allowance for doubtful accounts, ending	$ 657	$ 700