Summary of Significant Accounting Policies (Details) - USD ($)	12 Months Ended
Jun. 30, 2021	Jun. 30, 2020
Accounting Policies [Line Items]
Allowance for doubtful accounts	$ 1,000,000.0	$ 820,000
Dilutive securities outstanding	436,000	330,000
Advertising costs	$ 435,000	$ 377,000
Accumulated amortization, net	$ 343,000	$ 152,000
Leasehold improvements [Member]
Accounting Policies [Line Items]
Useful life of property and equipment	shorter of ten years or the remaining lease term
Revenue Benchmark [Member] \| Supplier Concentration Risk [Member] \| Manufacturers and suppliers [Member]
Accounting Policies [Line Items]
Concentration Risk, Percentage	62.00%	63.00%
2015 Equity Incentive Plan [Member]
Accounting Policies [Line Items]
Awards granted under 2015 Equity Incentive Plan	204,014	28,110
Computer Software [Member]
Accounting Policies [Line Items]
Accumulated amortization, net	$ 29,000
Restricted stock [Member]
Accounting Policies [Line Items]
Awards granted under 2015 Equity Incentive Plan	8,624	187,169
Dilutive securities outstanding	866,970	735,040
Stock Awards [Member]
Accounting Policies [Line Items]
Awards granted under 2015 Equity Incentive Plan	204,014	13,550
Common Stock [Member]
Accounting Policies [Line Items]
Awards granted under 2015 Equity Incentive Plan	5,262
Restricted Stock Awards [Member]
Accounting Policies [Line Items]
Antidilutive securities	306,202	307,790
Minimum [Member] \| Furniture and equipment [Member]
Accounting Policies [Line Items]
Useful life of property and equipment	5 years
Minimum [Member] \| Restricted stock [Member]
Accounting Policies [Line Items]
Percentage of retainage of contract billings	5.00%
Estimated future period of customer-related intangibles, non-compete, and other finite-lived intangible assets	5 years
Maximum [Member] \| Furniture and equipment [Member]
Accounting Policies [Line Items]
Useful life of property and equipment	7 years
Maximum [Member] \| Restricted stock [Member]
Accounting Policies [Line Items]
Percentage of retainage of contract billings	20.00%
Estimated future period of customer-related intangibles, non-compete, and other finite-lived intangible assets	10 years
At a point in time [Member] \| Commercial and vended laundry parts and equipment sales [Member]
Accounting Policies [Line Items]
Revenue, Remaining Performance Obligation, Percentage	82.00%	87.00%
Recognized over time [Member] \| Service contracts [Member]
Accounting Policies [Line Items]
Revenue, Remaining Performance Obligation, Percentage	18.00%	13.00%

Accounting Policies [Line Items]

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Percentage of retainage of contract billings.

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- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Amount of allowance for credit loss on accounts receivable.

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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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For each balance sheet presented, the amount of accumulated amortization for capitalized computer software costs.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment).

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Gross number of share options (or share units) granted during the period.

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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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