Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Schedule of Basic and Diluted Earnings Per Share) (Details)

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Summary of Significant Accounting Policies (Schedule of Basic and Diluted Earnings Per Share) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Accounting Policies [Abstract]    
Net income $ 3,167 $ 1,740
Less: distributed and undistributed income allocated to non-vested restricted common stock 248
Net income allocated to EnviroStar, Inc. shareholders $ 2,919 $ 1,740
Weighted average shares outstanding used in basic earnings per share 9,449 7,034
Dilutive common share equivalents 88
Weighted average shares outstanding used in dilutive earnings per share 9,537 7,034
Basic earnings per share $ 0.31 $ 0.25
Diluted earnings per share $ 0.31 $ 0.25