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CONSOLIDATED BALANCE SHEETS (Parenthetical) - shares
Jun. 30, 2023
Jun. 30, 2022
CONSOLIDATED BALANCE SHEETS    
Common stock, shares authorized 50,000,000 50,000,000
Common stock, shares issued 14,485,000 14,485,000
Common stock, shares outstanding 12,498,900 12,498,900
Treasury stock, shares 1,986,100 1,986,100