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v3.24.2.u1

Debt (Details 2) | 6 Months Ended
--- | ---
Jun. 30, 2024
December 30, 2022 to December 29, 2023 [Member] |
Accrued and unpaid interest | 102.00%
December 30, 2023 to September 29, 2024 [Member] |
Accrued and unpaid interest | 101.00%
September 30, 2024 to December 29, 2024 [Member] |
Accrued and unpaid interest | 100.00%

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- Definition Incremental percentage increase (decrease) in the stated rate on a debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentInterestRateIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_DebtInstrumentAxis=king_DecemberThirtyTwentyTwentyTwoToTwentyNineDecemberTwentyTwentyThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_DebtInstrumentAxis=king_DecemberThirtyTwentyTwentyThreeToTwentyNineSepTwentyTwentyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=king_SepThirtyTwentyTwentyFourToTwentyNineDecTwentyTwentyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |