Note 5 - Long-term Leases (Details) - Future Minimum Lease Payments - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Future Minimum Lease Payments [Abstract]
2016	$ 34,200
2016	5,200
2017	34,200
2017	5,200
2018	34,200
2018	5,200
2019	34,200
2019	5,200
2020	34,200
2020	5,200
Thereafter	228,050
Thereafter	19,067
Total minimum lease payments	399,050
Total minimum lease payments	45,067
Less: Amounts representing interest	(9,992)
Present value of minimum lease payments	35,075
Less: Current portion	(3,182)	$ (3,088)
Long-term capital lease obligations	$ 31,893	$ 33,508