Effective Rate Reflected in Provision for Income Taxes and Amounts Determined by Applying Statutory Federal Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Statutory provision	$ (832)	$ (805)
Foreign subsidiary	(14)	(51)
State taxes	(184)	(267)
Permanent differences	31	17
Adjustment to prior year taxes	399	27
Valuation allowance	615	1,536
Provision for income tax expense	$ 15	$ 457

Income tax reconciliation, permanent differences.

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- Definition

Income tax reconciliation prior year income taxes refund.

+ References

No definition available.

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- Definition

Income tax reconciliation repatriation of foreign earnings losses.

+ References

No definition available.

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- Definition

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

+ References

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

+ References

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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- Definition

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