Agreement To Maintain And Continue In Business, Next Twelve Months

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Contractual Minimum Number of Days Before Closing

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Joint Venture Agreement, Call Option, Exercise Price

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Variable Interest Entity, Additional Purchase of Ownership Interest, Percentage

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

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Portion of equity (net assets) in a variable interest entity (VIE) not attributable, directly or indirectly, to the parent entity. That is, this is the portion of equity in a VIE that is attributable to the noncontrolling interest (previously referred to as minority interest).

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The amount of financial or other support the reporting entity has provided (explicitly or implicitly) to the Variable Interest Entity (VIE) that it was not previously contractually required to provide or that the reporting entity intends to provide, including, for example, situations in which the reporting entity assisted the VIE in obtaining another type of support.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=118582676&loc=SL6759159-111685

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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.

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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 5A
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Investment in Aizu Fujitsu Semiconductor Wafer Solution Limited ("AFSW") - Narrative (Details) - USD ($)	12 Months Ended		15 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Jun. 30, 2021	Dec. 31, 2018
Variable Interest Entity [Line Items]
Agreement To Maintain And Continue AFSW, Term	1 year
Third Party
Variable Interest Entity [Line Items]
Equity Method Investment, Ownership Percentage	75.00%
Aizu Fajitsu Semiconductor Wafer Solution Limited
Variable Interest Entity [Line Items]
Ownership percentage in entity	49.00%
Additional financial support provided to investment	$ 7,348,000	$ 2,698,000
Unfunded commitment	$ (1,466,000)	$ (1,688,000)		$ (659,000)
Forecast
Variable Interest Entity [Line Items]
Expected exercise price under certain conditions			$ 1
Minimum number of days before closing			60 days
Fujitsu Semiconductor Limited \| Aizu Fajitsu Semiconductor Wafer Solution Limited
Variable Interest Entity [Line Items]
Ownership percentage in entity	51.00%
Fujitsu Semiconductor Limited \| Forecast
Variable Interest Entity [Line Items]
Purchase of additional interest			51.00%