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Note 4 - Balance Sheet Components - Other Current Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
RSU tax withholding proceeds receivable $ 5,331 $ 39
Prepaid expense 4,024 3,425
Assets for product returns 2,261 1,602
Interest receivable 1,869 1,441
Value-added tax receivable 628 423
Prepaid wafer refund receivable 0 4,297
Other 2,547 704
Total $ 16,660 $ 11,931