Deferred tax asset valuation allowance percent.

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Federal tax liability payable duration.

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Number of installments for federal tax liability payable.

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Number of installments of federal tax liability paid.

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Percentage of federal tax liability payable in final installment.

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Percentage of federal tax liability payable in first five installments.

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Percentage of federal tax liability payable in seventh installment.

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Percentage of federal tax liability payable in sixth installment.

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- Definition

Percentage of net operation loss carry forwards utilization limit against taxable income.

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Schedule of income taxes.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

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Tax year being audited in the income tax examination, in CCYY format.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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A description of the limitations on the use of all operating loss carryforwards available to reduce future taxable income.

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Amount of tax liability from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act.

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Amount of tax liability from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act, classified as current.

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Amount of tax liability from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act, classified as noncurrent.

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Income Taxes - Additional Information (Detail)	3 Months Ended		6 Months Ended
Income Taxes - Additional Information (Detail)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) installment	Sep. 30, 2019 USD ($)	Mar. 31, 2020 USD ($)
Schedule Of Income Taxes [Line Items]
Income (loss) of foreign subsidiaries before taxes				$ 300,000
Deferred tax valuation allowance against assets, Percent			100.00%
Deferred tax valuation allowance against assets	$ 3,500,000		$ 3,500,000
(Benefit) provision for income tax expense	(1,000)	$ 10,000	5,000	$ 15,000
Federal tax liability	2,031,000		$ 2,031,000
Federal tax liability payable period			8 years
Federal tax liability, Current portion	195,000,000		$ 195,000,000		$ 195,000,000
Federal tax liability, Non-current portion	1,836,000,000		$ 1,836,000,000		$ 2,033,000,000
Percentage of federal tax liability payable in first five installments			8.00%
Percentage of federal tax liability payable in sixth installment			15.00%
Percentage of federal tax liability payable in seventh installment			20.00%
Percentage of federal tax liability payable in final installment			25.00%
Number of installments for federal tax liability payable \| installment			8
Number of installments of federal tax liability paid \| installment			3
U.S. federal
Schedule Of Income Taxes [Line Items]
Net operating loss carry forwards, amount	9,600,000		$ 9,600,000
Operating loss carryovers, limitations on use			At September 30, 2020, the Company had $9.6 million of U.S. federal net operating loss (“NOL”) carry forwards. These losses do not expire but are limited to utilization of 80% of taxable income in any one year.
Percentage of NOLs utilization limit against taxable income			80.00%
U.S. federal \| Earliest Tax Year
Schedule Of Income Taxes [Line Items]
Open tax years			2016
U.S. federal \| Latest Tax Year
Schedule Of Income Taxes [Line Items]
Open tax years			2019
States
Schedule Of Income Taxes [Line Items]
Net operating loss carry forwards, amount	$ 17,600,000		$ 17,600,000
States \| Earliest Tax Year
Schedule Of Income Taxes [Line Items]
Open tax years			2015
States \| Latest Tax Year
Schedule Of Income Taxes [Line Items]
Open tax years			2019