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Amounts Outstanding under CalCap Loan (Detail)	Mar. 31, 2021 USD ($)
Notes to Financial Statements
Long-term portion of CalCap loan	$ 500,000
Current-portion of CalCap loan	500,000
CalCap loan balance	$ 1,000,000

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Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.

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Carrying value as of the balance sheet date of current portion of long-term loans payable to bank due within one year or the operating cycle if longer.

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Carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the operating cycle if longer, excluding current portion.

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