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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares
Mar. 31, 2018
Jun. 30, 2017
Statement of Financial Position [Abstract]    
Preferred stock, par value (USD per share) $ 0.0001 $ 0.001
Preferred stock, shares authorized (in shares) 5,000,000 50,000,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0
Common stock, par value (USD per share) $ 0.0001 $ 0.001
Common stock, shares authorized (in shares) 40,000,000 250,000,000
Common stock, shares issued (in shares) 14,307,000 14,232,000
Common stock, shares outstanding (in shares) 14,307,000 14,232,000