Income Taxes - Additional Information (Detail)	3 Months Ended
	Jun. 30, 2022 USD ($) installment	Jun. 30, 2021 USD ($)	Mar. 31, 2022 USD ($)
Schedule Of Income Taxes [Line Items]
Income of foreign subsidiaries before taxes	$ 83,000	$ 18,000
Deferred tax valuation allowance against assets, Percent	100.00%
Deferred tax valuation allowance against assets	$ 4,658,000
Provision for income tax expense
Federal tax liability	$ 1,808,000		$ 1,808,000
Federal tax liability payable period	8 years
Federal tax liability, Current portion	$ 205,000
Federal tax liability, Non-current portion	$ 1,603,000
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	4
Selling, General and Administrative Expenses
Schedule Of Income Taxes [Line Items]
Provision for income tax expense	$ 11,000	$ 11,000
U.S. federal
Schedule Of Income Taxes [Line Items]
Net operating loss carry forwards, amount	$ 15,300,000
Operating loss carryovers, limitations on use	At June 30, 2022, the Company had $15.3 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	2021
States
Schedule Of Income Taxes [Line Items]
Net operating loss carry forwards, amount	$ 18,100,000
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	2021