Note 14 - 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]

	Level 1		Level 2		Level 3		Total
December 31, 2019
Assets:
Fuel hedge	$	—	$	—	$	25	$	25
Marketable securities - restricted		2,296		—		—		2,296
	$	2,296	$	—	$	25	$	2,321
Liabilities:
Interest rate swaps	$	—	$	—	$	3,825	$	3,825
September 30, 2020
Liabilities:
Fuel hedge		—		—		750		750
Interest rate swaps		—		—		4,806		4,806
	$	—	$	—	$	5,556	$	5,556

Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

Ending balance, December 31, 2019*	$	(3,800	)
Change in estimated fair value		(1,756	)
Ending balance, September 30, 2020*	$	(5,556	)