Note 2 - Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

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

September 30, 2020	Level 1		Level 2		Level 3		Total
Financial assets
Derivative asset - current	$	—	$	25,097	$	—	$	25,097
Derivative asset - noncurrent		—		4,727		—		4,727
Total financial assets	$	—	$	29,824	$	—	$	29,824
Financial liabilities
Derivative liability - current	$	—	$	1,040	$	—	$	1,040
Derivative liability - noncurrent		—		577		—		577
Total financial liabilities	$	—	$	1,617	$	—	$	1,617
December 31, 2019
Financial assets
Derivative asset - current	$	—	$	8,860	$	—	$	8,860
Derivative asset - noncurrent		—		770		—		770
Total financial assets	$	—	$	9,630	$	—	$	9,630
Financial liabilities
Derivative liability - current	$	—	$	6,889	$	—	$	6,889
Derivative liability - noncurrent		—		—		—		—
Total financial liabilities	$	—	$	6,889	$	—	$	6,889