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Note D - Property, Plant and Equipment (Details Textual)
$ in Thousands
12 Months Ended
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Finance Lease, Right-of-Use Asset, after Accumulated Amortization $ 5,210 $ 4,427
Depreciation $ 6,707 6,400
Permanently Idled, Number of Facilities 1  
Property, Plant and Equipment, Net $ 58,074 38,650
Tangible Asset Impairment Charges 0 $ 0
Permanently Idled [Member]    
Property, Plant and Equipment, Net $ 3,000