3. BALANCE SHEET DETAIL - Prepaid expenses and other current assets (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Mar. 31, 2016
Prepaid expenses and other current assets:
Prepaid tooling and masks	$ 580	$ 1,224
Prepaid income taxes	43
Escrow deposit	484
Other receivables	273	230
Other prepaid expenses and other current assets	837	744
Total prepaid expenses and other current assets	$ 2,217	$ 2,198