Note 10 - Business Risk and Credit Risk Concentration Involving Cash	3 Months Ended
Sep. 30, 2022
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	(10) Business Risk and Credit Risk Concentration Involving Cash For the three months ended September 30, 2022, the Company had three customers that comprised all of the Company’s revenue. For the three months ended September 30, 2021, the Company had one customer that materially comprised all of the Company's revenue. The Company maintains funds in bank accounts that may exceed the limit insured by the Federal Deposit Insurance Corporation of $250 thousand per depositor. The risk of loss attributable to these uninsured balances is mitigated by depositing funds in what we believe to be high credit quality financial institutions. The Company has not experienced any losses in such accounts.

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-URI https://asc.fasb.org/topic&trid=2134479

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