CARES Act, Tax Benefit From Carryback Of Net Operating Loss.

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The number of customers that are reflected in the stated concentration of risk.

+ References

No definition available.

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- Definition

The number of principal operations of the entity that are located near geologic fault lines.

+ References

No definition available.

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- Definition

The number of subsidiaries owned by the entity.

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No definition available.

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- Definition

The percentage of increase in the cost of wafers.

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No definition available.

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- Definition

Amount of direct write-downs of accounts receivable charged against the allowance.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
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-Subparagraph (d)
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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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- Definition

Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

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No definition available.

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- References

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1. THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	12 Months Ended
	Mar. 31, 2022 USD ($) facility customer subsidiary item	Mar. 31, 2021 USD ($) customer	Mar. 31, 2020 USD ($) customer
Basis of consolidation and risks and uncertainties
Number of subsidiaries \| subsidiary	4
Number of principal operations near fault lines \| facility	2
Allowance for doubtful accounts receivable write offs \| $	$ 0	$ 0	$ 0
Tax benefit, CARES Act \| $		$ 378,000
Number of reporting units \| item	1
COVID-19
Basis of consolidation and risks and uncertainties
Percentage of increase in the cost of wafers	20.00%
Accounts Receivable [Member]
Basis of consolidation and risks and uncertainties
Number of customers \| customer	3	4
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Major Customer One Member
Basis of consolidation and risks and uncertainties
Percentage attributable to customers	34.00%	36.00%
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Major Customer Two Member
Basis of consolidation and risks and uncertainties
Percentage attributable to customers	28.00%	28.00%
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Major Customer Three Member
Basis of consolidation and risks and uncertainties
Percentage attributable to customers		15.00%
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Major Customer Four Member
Basis of consolidation and risks and uncertainties
Percentage attributable to customers	19.00%	12.00%
Sales Revenue, Net [Member]
Basis of consolidation and risks and uncertainties
Number of customers \| customer	4	4	4
Sales Revenue, Net [Member] \| Customer Concentration Risk [Member] \| Major Customer One Member
Basis of consolidation and risks and uncertainties
Percentage attributable to customers	38.00%	30.00%	34.00%
Sales Revenue, Net [Member] \| Customer Concentration Risk [Member] \| Major Customer Two Member
Basis of consolidation and risks and uncertainties
Percentage attributable to customers	17.00%	22.00%	17.00%
Sales Revenue, Net [Member] \| Customer Concentration Risk [Member] \| Major Customer Three Member
Basis of consolidation and risks and uncertainties
Percentage attributable to customers	16.00%	21.00%	15.00%
Sales Revenue, Net [Member] \| Customer Concentration Risk [Member] \| Major Customer Four Member
Basis of consolidation and risks and uncertainties
Percentage attributable to customers	11.00%	15.00%	15.00%