Note 1 - DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020
Balance at Beginning of Period		$ 41,859	$ 10,486
Charged to Expense		9,727	31,373
Balance at End of Period		51,586	41,859
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
Balance at Beginning of Period		963	213
Charged Against Revenue	[1]		800
Deductions/ Write-offs of Accounts Receivable		(73)	(50)
Balance at End of Period		$ 890	$ 963

[1] Additions to the accounts receivable reserve for doubtful accounts are charged to bad debt expense. Additions to the receivable reserve for billing adjustments are charged against revenue.