8. SEGMENT AND GEOGRAPHIC INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 segment	Sep. 30, 2013
Net revenues by geographic area
Number of reportable business segments			1
Net revenues	$ 13,263	$ 15,542	$ 26,208	$ 31,954
UNITED STATES
Net revenues by geographic area
Net revenues	4,777	4,414	8,394	10,385
CHINA
Net revenues by geographic area
Net revenues	3,708	2,794	7,239	6,271
MALAYSIA
Net revenues by geographic area
Net revenues	1,098	3,208	2,700	5,555
SINGAPORE
Net revenues by geographic area
Net revenues	1,833	1,613	3,500	3,065
NETHERLANDS
Net revenues by geographic area
Net revenues	456	1,879	1,471	3,412
Rest of World [Member]
Net revenues by geographic area
Net revenues	$ 1,391	$ 1,634	$ 2,904	$ 3,266