Note 5 - Senior Credit Facility and Other Long Term Debt - Debt Outstanding (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022
Total outstanding debt	$ 0	$ 101
Revolving Advances [Member]
Notes Payable	$ 0	$ 101
Revolving advances under Senior Credit Facility with PNC Bank, National Association		8.25%

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant