Note 14 - Income Taxes - Components of Income Tax (Expense) Benefit (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
US	$ (2)		$ (5)
Foreign	37		148
Total benefit from provision for income taxes	$ 35	$ 233	$ 143	$ 213