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CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) - $ / shares
Sep. 30, 2019
Jun. 30, 2019
Shareholders' equity    
Common stock, par value (in dollars per share) $ 0 $ 0
Common stock, shares authorized (in shares) 50,000,000 50,000,000
Common stock, shares issued (in shares) 28,981,910 28,027,569
Common stock, shares outstanding (in shares) 28,981,910 28,027,569