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Consolidated Balance Sheets (Parentheticals) - $ / shares
$ / shares in Thousands
Jun. 30, 2020
Jun. 30, 2019
Preferred Shares, Authorized (in shares) 200,000 200,000
Preferred Shares, Issued (in shares) 0 0
Preferred Shares, No Par Value (in dollars per share) $ 0 $ 0
Common shares, authorized (in shares) 30,000,000 30,000,000
Common shares, shares issued (in shares) 14,632,802 14,632,802
Common shares, no par value (in dollars per share) $ 0 $ 0
Treasury Stock, Shares (in shares) 1,226,809 1,392,524