Note 1 - Organization and Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Schedule of Cash, Cash Equivalents and Restricted Cash [Table Text Block]

	As of March 31,
	2023		2022
	(in thousands)
Cash and cash equivalents	$	52,119	$	18,939
Restricted cash - current		76		4,230
Restricted cash - non-current		1,771		1,752
Abandonment funding		6,268		21,369
Total cash, cash equivalents and restricted cash	$	60,234	$	46,290

Accounts Receivable, Allowance for Credit Loss [Table Text Block]

	Three Months Ended March 31,
	2023			2022
	(in thousands)
Allowance for credit losses and other
Balance at beginning of period	$	(8,704	)	$	(5,741	)
Credit loss charges and other, net of receipts		(935	)		(492	)
Cumulative effect of adjustment upon adoption of ASU 2016-13 on January 1, 2023		(3,120	)		—
Foreign currency gain (loss)		(73	)		98
Balance at end of period	$	(12,832	)	$	(6,135	)

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

		As of March 31, 2023
	Balance Sheet Line	Level 1		Level 2		Level 3		Total
		(in thousands)
Assets
Derivative asset	Prepayments and other	$	—	$	124	$	—	$	124
		$	—	$	124	$	—	$	124
Liabilities
SARs liability	Accrued liabilities and other	$	—	$	297	$	—	$	297
		$	—	$	297	$	—	$	297

`		As of December 31, 2022
	Balance Sheet Line	Level 1		Level 2		Level 3		Total
		(in thousands)
Assets
Derivative asset	Prepayments and other	$	—	$	102	$	—	$	102
		$	—	$	102	$	—	$	102
Liabilities
SARs liability	Accrued liabilities and other	$	—	$	556	$	—	$	556
		$	—	$	556	$	—	$	556