Note 9 - Equity Method Investment - TEL's Summarized Financial Information - Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenue	$ 34,386	$ 23,242	$ 63,415	$ 40,889
Operating Expenses	30,850	20,956	56,403	36,493
Operating Income	3,536	2,286	7,012	4,396
Net Income	$ 2,750	$ 1,766	$ 5,527	$ 3,427