Note 2 - Variable Interest Entities - Consolidated VIE's Financial Performance (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Loss from discontinued operations		$ (14)		$ (60)
Net loss	(757)	(1,157)	(1,826)	(2,568)
Revenues	10,417	8,264	17,662	13,276
Cost of revenues	8,800	5,939	14,792	9,395
Total operating expenses	2,122	3,485	4,443	6,497
VIEs [Member]
Loss from discontinued operations		(14)		(60)
Net loss	(163)	75	(516)	(260)
Revenues	10,469	8,348	17,733	13,387
Cost of revenues	(8,800)	(5,859)	(14,792)	(9,314)
Total operating expenses	$ (1,526)	$ (2,211)	$ (3,159)	$ (4,094)