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3. BALANCE SHEET DETAIL - Prepaid expenses and other current assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Mar. 31, 2015
Prepaid expenses and other current assets:    
Prepaid tooling and masks $ 1,767 $ 1,208
Prepaid income taxes   139
Other receivables 306 350
Other prepaid expenses 641 600
Total prepaid expenses and other current assets $ 2,714 $ 2,297