The amount of additional debt borrowed during the period

No definition available.

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- Definition

The amount of guarantee fee paid under the agreement.

+ References

No definition available.

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- Definition

The percentage of guarantee fee paid of the loan amount.

+ References

No definition available.

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- Definition

The period of renewal option under the debt instrument.

+ References

No definition available.

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- Definition

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

+ References

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
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-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

The effective interest rate at the end of the reporting period.

+ References

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ References

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Bank Loans and Line of Credit (Details) - USD ($) $ in Thousands				1 Months Ended								12 Months Ended
	Sep. 12, 2019	Aug. 09, 2019	Nov. 06, 2018	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Oct. 31, 2020	Sep. 30, 2020	Aug. 31, 2020	Mar. 31, 2020	Feb. 29, 2020	Dec. 31, 2019	Jan. 31, 2022	Nov. 30, 2021	Jun. 30, 2021	Feb. 05, 2020
Bank Of China \| Lines OF Credit, Current
Debt Instrument [Line Items]
Letters of credit outstanding				$ 2,800		$ 8,900
Combined loans renewed				2,800		8,900
Bank Of China \| Secured Debt \| Beijing Tongmei Xtal Technology
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 5,800						$ 3,100
Variable rate spread (as a percent)							4.70%	3.85%
Repayments of line of credit					$ 3,100		$ 5,600
Letters of credit outstanding					2,700										$ 5,800
Proceeds from credit facility	$ 2,800	$ 2,800
Combined loans renewed					$ 2,700										$ 5,800
Interest rate					3.85%										4.70%
Combined loan totals							5,600
Renewal period								6 months
Additional loan borrowed							$ 2,700
Repayments of loan									$ 5,900
Bank Of China \| Secured Debt \| Beijing Tongmei Xtal Technology \| Subsequent Event [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity													$ 4,400
Interest rate													4.55%
Bank Of China \| Secured Debt \| Beijing Tongmei Xtal Technology \| Prime Rate
Debt Instrument [Line Items]
Variable rate spread (as a percent)		0.40%										4.70%
ICBC \| Lines OF Credit, Current
Debt Instrument [Line Items]
Letters of credit outstanding				1,600		1,500
Combined loans renewed				1,600		$ 1,500
ICBC \| Secured Debt \| Lines OF Credit, Current
Debt Instrument [Line Items]
Letters of credit outstanding				0
Combined loans renewed				0
ICBC \| Secured Debt \| Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd Investment
Debt Instrument [Line Items]
Maximum borrowing capacity											$ 1,400
Annual interest rate at end						4.30%
Repayments of line of credit				1,600		$ 400
Letters of credit outstanding				1,600		1,500
Proceeds from lines of credit										$ 400
Combined loans renewed				$ 1,600		$ 1,500
Interest rate				3.92%
ICBC \| Secured Debt \| Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd Investment \| Prime Rate
Debt Instrument [Line Items]
Variable rate spread (as a percent)						0.07%					0.15%
Wells Fargo Bank \| Secured Debt
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 10,000													$ 7,000
Loans outstanding												$ 0
Letters of credit outstanding						$ 0
Combined loans renewed						$ 0
Wells Fargo Bank \| Secured Debt \| LIBOR
Debt Instrument [Line Items]
Variable rate spread (as a percent)			2.00%
Wells Fargo Bank \| Letter of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 1,000
Letters of credit outstanding												0
Combined loans renewed												$ 0
Bank of Communications \| Lines OF Credit, Current
Debt Instrument [Line Items]
Letters of credit outstanding				$ 4,700
Combined loans renewed				4,700
Bank of Communications \| Secured Debt \| Beijing Tongmei Xtal Technology
Debt Instrument [Line Items]
Maximum borrowing capacity					$ 3,100									$ 1,600
Letters of credit outstanding				4,700
Combined loans renewed				4,700
Interest rate					4.00%
Bank of Communications \| Secured Debt \| Beijing Tongmei Xtal Technology \| Subsequent Event [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity													$ 3,100
Interest rate													3.30%
China Merchants Bank \| Secured Debt \| Lines OF Credit, Current
Debt Instrument [Line Items]
Letters of credit outstanding				1,600
Combined loans renewed				1,600
China Merchants Bank \| Secured Debt \| Beijing Tongmei Xtal Technology
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 1,600
Interest rate				3.55%
Guarantee fee (as a percent)				1.50%
Amount of guarantee fee				$ 24
China Merchants Bank \| Unsecured Debt \| Lines OF Credit, Current
Debt Instrument [Line Items]
Letters of credit outstanding				1,600
Combined loans renewed				1,600
China Merchants Bank \| Unsecured Debt \| Beijing Tongmei Xtal Technology
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 1,600
Interest rate				4.22%