Note 8 - Leases - Future Payments of Leases (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
2017	$ 7,135,000
2017	3,062,000
2018	6,047,000
2018	3,062,000
2019	3,844,000
2019	3,062,000
2020	430,000
2020	5,284,000
2021
2021	6,508,000
Thereafter
Thereafter	3,548,000
Total minimum lease payments	17,456,000
Total minimum lease payments	24,526,000
Less: amount representing interest	(2,324,000)
Present value of minimum lease payments	22,202,000
Less: current portion	(2,441,000)	$ (4,031,000)
Capital lease obligations, long-term	$ 19,761,000	$ 10,547,000