Loan carried out from the Investment Margin Account with the marketable securities pledged as collateral.

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Area of land held.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Amount of the required periodic payments including both interest and principal payments.

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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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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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Note 10 - Debt and Commitments (Details Textual)	1 Months Ended		3 Months Ended	12 Months Ended
Note 10 - Debt and Commitments (Details Textual)	Apr. 30, 2022 USD ($) ft²	Nov. 30, 2015 USD ($) ft² a	Dec. 31, 2022 USD ($)	Sep. 30, 2013 USD ($)	Sep. 30, 2022 USD ($)
Investment Margin Account			$ 81,011,000		$ 75,000,000
Payments to Acquire Property, Plant, and Equipment, Total			36,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Area of Real Estate Property \| ft²	17,564
Proceeds from Sale of Land Held-for-use	$ 381,000
UTAH \| Building [Member]
Area of Real Estate Property \| ft²		30,700
UTAH \| Land [Member]
Area of Land \| a		3.6
Payments to Acquire Property, Plant, and Equipment, Total		$ 1,240,000
Margin Account [Member]
Proceeds from Issuance of Debt			51,500,000	$ 29,500,000
Investment Margin Account			$ 81,000,000.0
Debt Instrument, Interest Rate, Effective Percentage			5.00%
Margin Account [Member] \| Fed Funds Rate [Member]
Debt Instrument, Basis Spread on Variable Rate			0.50%
Real Estate Bank Loan Secured by Logan Office [Member]
Loans Payable to Bank, Total		$ 2,260,000	$ 1,390,000
Long-Term Debt, Percentage Bearing Fixed Interest, Percentage Rate		3.33%
Debt Instrument, Periodic Payment, Total			$ 16,600