Share-Based Compensation Arrangement By Share-Based Payment Award, Additional Shares Authorized

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Annual Number of Additional Shares Authorized

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- Definition

Share-based Compensation Arrangement By Share-based Payment Award, Annual Shares Authorized, Percent Of Outstanding Shares

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Authorized Amount

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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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.

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- Definition

Number of additional shares authorized for issuance under share-based payment arrangement.

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No definition available.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Number of options outstanding, including both vested and non-vested options.

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- Definition

The excess of the fair value of the modified award over the fair value of the award immediately before the modification.

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- Definition

Percentage of vesting of award under share-based payment arrangement.

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Stock-Based Compensation - Narrative (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2022	Jan. 01, 2023	Dec. 16, 2022	Apr. 01, 2022	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued under company plans (in shares)	2,929,485	3,045,662	2,506,531	2,929,485				2,879,008	2,957,904	2,543,125
Incremental compensation cost	$ 0.3
RSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted (in shares)	75,250	164,440	35,000
Amount approved for grant						$ 0.5
RSU \| Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)					93,895
RSU \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage			25.00%
Award vesting period	3 years		1 year
The 2020 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	5,050,000			5,050,000
Percentage of outstanding shares (in percent)	5.00%			5.00%
Additional shares authorized (in shares)							2,668,965
Shares issued under company plans (in shares)	2,929,485			2,929,485
Number of shares available for grant (in shares)	5,144,788			5,144,788
The 2020 Equity Incentive Plan \| RSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity awards outstanding under The 2020 Plan (in shares)	1,018,478			1,018,478
The 2020 Equity Incentive Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options authorized (in shares)				2,461,923
Annual increase in shares available for issue (in shares)				5,000,000
Transphorm Technology 2007 Stock Plan and 2015 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	2,588,077			2,588,077