Note 3 - Discontinued Operations and Held-for-sale (Details Textual) - USD ($) $ in Thousands				3 Months Ended		6 Months Ended
	Jun. 30, 2022	Mar. 16, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Proceeds From the Sale of Discontinued Operations						$ 142,571	$ 0
Operating Lease, Right-of-Use Asset	$ 45,404		$ 47,181	$ 45,404	$ 47,181	45,404	47,181	$ 49,312
Gain (Loss) on Disposition of Assets, Total				385	1,052	717	3,297
Sale-leaseback Associated with Two Properties in California [Member]
Sale Leaseback Transaction, Net Book Value, Total			11,100		11,100		11,100
Operating Lease, Right-of-Use Asset			2,400		$ 2,400		$ 2,400
Gain (Loss) on Disposition of Assets, Total			$ 29,700
Sale-leaseback Associated Property in Arizona [Member]
Sale Leaseback Transaction, Net Book Value, Total	3,800			3,800		3,800
Operating Lease, Right-of-Use Asset	1,100			$ 1,100		$ 1,100
Gain (Loss) on Disposition of Assets, Total	$ 8,200
Inliner [Member]
Disposal Group, Including Discontinued Operation, Consideration		$ 159,700
Proceeds From the Sale of Discontinued Operations		142,600
Gain (Loss) on Sale of Discontinued Operations		$ 6,200