Note 7 - Due From Affiliate (Details Textual) - USD ($)	12 Months Ended
Mar. 31, 2018	Dec. 31, 2023	Mar. 31, 2023
Engineering Services [Member] \| Qol [Member]
Related Party Transaction, Amounts of Transaction	$ 330,090
Accounts Receivable, Allowance for Credit Loss		$ 330,090	$ 250,000
Qol [Member]
Equity Method Investments		$ 75,000
Equity Method Investment, Ownership Percentage		23.20%

Amount of allowance for credit loss on accounts receivable.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Amount of transactions with related party during the financial reporting period.

+ References

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