Note 3 - Equity Investment - Summary of Financial Information for Mission Providence (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Current assets	$ 299,872		$ 288,103
Current liabilities	258,523		227,796
Revenue	399,494	$ 382,036
Operating loss	6,788	8,304
Net loss	(4,325)	2,235
Mission Providence [Member]
Current assets	756		4,640
Long-term assets	10,867		10,473
Current liabilities	12,186		12,844
Long-term liabilities			$ 1,655
Revenue	9,388	7,418
Operating loss	(1,150)	(4,428)
Net loss	$ (1,203)	$ (2,974)