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v3.21.2

DEBT (Details) $ in Thousands, ¥ in Millions | 9 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 01, 2021 USD ($) Tool | Oct. 31, 2020 USD ($) | Aug. 01, 2021 CNY (¥) | Feb. 28, 2021 USD ($) | Dec. 31, 2020 USD ($) | Nov. 30, 2018 CNY (¥)
Debt Instruments [Abstract] |  |  |  |  |  |  |
Short-term debt |  | $ 0 | $ 4,708 |  |  |  |
Weighted-average interest rate of short -term debt |  |  | 2.02% |  |  |  |
Long Term Debt Maturing In Year One [Abstract] |  |  |  |  |  |  |
Next 12 months |  | 25,163 | $ 8,970 |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |
Months 13 - 24 |  | 25,051 | 15,142 |  |  |  |
Months 25 - 36 |  | 21,392 | 13,406 |  |  |  |
Months 37 - 48 |  | 37,153 | 9,789 |  |  |  |
Months 49 - 60 |  | 9,144 | 9,432 |  |  |  |
Thereafter |  |  | 7,211 |  |  |  |
Long-term debt |  | 92,740 | 54,980 |  |  |  |
Finance lease amount |  | 39,814 | 0 |  |  |  |
Xiamen Project Loans [Member] |  |  |  |  |  |  |
Long Term Debt Maturing In Year One [Abstract] |  |  |  |  |  |  |
Next 12 months |  | 7,615 | 6,705 |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |
Months 13 - 24 |  | 9,961 | 7,334 |  |  |  |
Months 25 - 36 |  | 10,165 | 9,592 |  |  |  |
Months 37 - 48 |  | 9,794 | 9,789 |  |  |  |
Months 49 - 60 |  | 7,489 | 9,432 |  |  |  |
Thereafter |  |  | 7,211 |  |  |  |
Long-term debt |  | $ 37,409 | $ 43,358 |  |  |  |
Interest rate at balance sheet date |  | 4.65% | 4.90% |  |  |  |
Basis spread on interest rates |  | 0.00% | 0.25% |  |  |  |
Maturity date |  | Dec. 31, 2025 |  |  |  |  |
Periodic payment amount |  | Increases as loans mature |  |  |  |  |
Periodic payment frequency |  | Semiannual, on individual loans |  |  |  |  |
Loan collateral (carrying amount) |  | $ 91,277 | $ 94,459 |  |  |  |
Maximum borrowing capacity | ¥ |  |  |  |  |  |  | ¥ 345.0
Amount outstanding |  | 45,000 |  | ¥ 291.0 |  |  |
Xiamen Working Capital Loans [Member] |  |  |  |  |  |  |
Long Term Debt Maturing In Year One [Abstract] |  |  |  |  |  |  |
Next 12 months |  | 8,108 | 2,265 |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |
Months 13 - 24 |  | 3,961 | 7,808 |  |  |  |
Months 25 - 36 |  | 0 | 3,814 |  |  |  |
Months 37 - 48 |  | 0 | 0 |  |  |  |
Months 49 - 60 |  | 0 | 0 |  |  |  |
Thereafter |  |  | 0 |  |  |  |
Long-term debt |  | $ 3,961 | $ 11,622 |  |  |  |
Maturity date |  | Jul. 31, 2023 |  |  |  |  |
Periodic payment amount |  | Increases as loans mature |  |  |  |  |
Periodic payment frequency |  | Semiannual, on individual loans |  |  |  |  |
Maximum borrowing capacity |  | $ 25,000 |  |  |  |  |
Expiration date |  | Oct. 31, 2021 |  |  |  |  |
Amount outstanding |  | $ 12,100 |  | 78.0 |  |  |
Xiamen Working Capital Loans [Member] | Minimum [Member] |  |  |  |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |
Interest rate at balance sheet date |  | 4.53% | 4.53% |  |  |  |
Basis spread on interest rates |  | 0.6775% | 0.40% |  |  |  |
Xiamen Working Capital Loans [Member] | Maximum [Member] |  |  |  |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |
Interest rate at balance sheet date |  | 4.61% | 4.61% |  |  |  |
Basis spread on interest rates |  | 0.76% | 0.76% |  |  |  |
Hefei Equipment Loan [Member] |  |  |  |  |  |  |
Long Term Debt Maturing In Year One [Abstract] |  |  |  |  |  |  |
Next 12 months |  | $ 2,321 |  |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |
Months 13 - 24 |  | 4,642 |  |  |  |  |
Months 25 - 36 |  | 4,642 |  |  |  |  |
Months 37 - 48 |  | 7,736 |  |  |  |  |
Months 49 - 60 |  | 1,655 |  |  |  |  |
Long-term debt |  | $ 18,675 |  |  |  |  |
Interest rate at balance sheet date |  | 4.20% |  |  |  |  |
Basis spread on interest rates |  | (0.45%) |  |  |  |  |
Maturity date |  | Sep. 30, 2026 |  |  |  |  |
Periodic payment amount | [1] | Varies |  |  |  |  |
Periodic payment frequency | [2] | Semiannual |  |  |  |  |
Loan collateral (carrying amount) |  | $ 86,892 |  |  |  |  |
Percent of repayment on approved loan principal in each first five semiannual loan repayments |  | 7.50% |  |  |  |  |
Percent of repayment on original approved loan amount in each last five semiannual loan repayments |  | 12.50% |  |  |  |  |
Maximum borrowing capacity |  | $ 30,900 |  | 200.0 |  |  |
Expiration date |  | Aug. 31, 2022 |  |  |  |  |
Proceeds from line of credit |  | $ 21,000 |  | 135.7 |  |  |
Available borrowing capacity |  | $ 9,900 |  | ¥ 62.5 |  |  |
Number of lithography tools to be purchased | Tool |  | 2 |  |  |  |  |
Finance Leases [Member] |  |  |  |  |  |  |
Long Term Debt Maturing In Year One [Abstract] |  |  |  |  |  |  |
Next 12 months |  | $ 7,119 |  |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |
Months 13 - 24 |  | 6,487 |  |  |  |  |
Months 25 - 36 |  | 6,585 |  |  |  |  |
Months 37 - 48 |  | 19,623 |  |  |  |  |
Months 49 - 60 |  | 0 |  |  |  |  |
Long-term debt |  | $ 32,695 |  |  |  |  |
Interest rate at balance sheet date | [3] |  |  |  |  |  |
Maturity date | [3] |  |  |  |  |  |
Periodic payment amount | [3] |  |  |  |  |  |
Periodic payment frequency |  | Monthly |  |  |  |  |
Loan collateral (carrying amount) | [4] | $ 41,537 |  |  |  |  |
Finance lease contract term |  |  |  |  | 5 years |  |
Finance lease amount |  |  |  |  | $ 7,200 | $ 35,500 |
Short-term obligation |  |  |  |  |  | $ 3,500 |
Amended and Restated Credit Agreement [Member] |  |  |  |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |
Maximum borrowing capacity |  | 100,000 |  |  |  |  |
Amount outstanding |  | $ 0 |  |  |  |  |
Term of loan |  | 5 years |  |  |  |  |
Current borrowing capacity |  | $ 50,000 |  |  |  |  |
Cash limit for dividends, distributions and redemption on equity |  | $ 50,000 |  |  |  |  |
Effective interest rate |  | 1.09% |  | 1.09% |  |  |
[1] | First five loan repayments will each be for 7.5 percent of the approved 200 million RMB loan principal; last five installments will each be for 12.5 percent of the original approved loan amount.
[2] | Semiannual repayments commence in March 2022.
[3] | See Note 8 for interest rates on lease liabilities, maturity dates, and periodic payment amounts.
[4] | Represents the carrying amount at the balance sheet date of the related right-of-use assets, in which the lessors have secured interests.

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