Note 16 - Income Taxes - Income Taxes Provision Breakdown (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Current:
Federal	$ 1,418	$ 201	$ 4,804
State	126	83	73
Foreign	3,436	5,066	3,087
Current Income Tax Expense (Benefit)	4,980	5,350	7,964
Deferred:
Federal	3,554	945	183
State	189	20	86
Foreign	25	375	(820)
Deferred Income Tax Expense (Benefit)	3,768	1,340	(551)
Total income tax provision	$ 8,748	$ 6,690	$ 7,413