11. SEGMENT AND GEOGRAPHIC INFORMATION - Long-lived assets (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
Net revenues and long-lived assets by geographic area
Long-lived assets	$ 9,001	$ 8,172
United States
Net revenues and long-lived assets by geographic area
Long-lived assets	7,707	6,576
Taiwan
Net revenues and long-lived assets by geographic area
Long-lived assets	854	1,443
Israel
Net revenues and long-lived assets by geographic area
Long-lived assets	$ 440	$ 153