Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share [Abstract]
Net income	$ 563	$ 352
Less: distributed and undistributed income allocated to non-vested restricted common stock	44
Net income allocated to EnviroStar, Inc. shareholders	$ 519	$ 352
Weighted average shares outstanding used in basic earnings per share	10,468,000	7,034,000
Dilutive common share equivalents	381,000
Weighted average shares outstanding used in dilutive earnings per share	10,849,000	7,034,000
Basic earnings per share	$ 0.05	$ 0.05
Diluted earnings per share	$ 0.05	$ 0.05
Restricted common stock not included in calculation of dilutive earnings per share because their impact is anti-dilutive	509,373

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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