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SUBSEQUENT EVENTS (Details) - shares | Jan. 28, 2022 | Jan. 01, 2022
--- | --- | ---
Subsequent Event [Line Items] |  |
Shares available for future grant (in shares) |  | 63,750
Subsequent Event | Stock Option 2022 Plan |  |
Subsequent Event [Line Items] |  |
Shares available for future grant (in shares) | 500,000 |

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- Definition Number of shares authorized for issuance under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PlanNameAxis=arkr_StockOption2022PlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |