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CONSOLIDATED BALANCE SHEETS [Parenthetical] - $ / shares
Jun. 30, 2018
Jun. 30, 2017
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized 100,000 100,000
Preferred stock , shares issued 0 0
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized 4,000,000 4,000,000
Common stock, shares issued 3,395,616 3,395,616
Common stock, shares outstanding 2,334,197 2,359,724
Treasury stock, shares 1,061,419 1,035,892