Note 13 - Discontinued Operations - Results of Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Major classes of line items constituting loss from discontinued operations before income taxes:
Service revenue		$ 11,875
Cost of service revenue		9,019
Gross profit		2,856
Research and development		1,378
Sales and marketing		2,254
General and administrative		1,364
Loss from discontinued operations before income taxes		(2,140)
Income tax expense
Loss from discontinued operations		$ (2,140)