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Impact Of COVID-19 Pandemic And Liquidity (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2023 | Jun. 30, 2022 | Mar. 31, 2022 | Jul. 03, 2023 | Dec. 31, 2022
Impact Of Covid [Line Items] |  |  |  |  |
Revenue | $ 45,807 |  | $ 40,200 |  |
Debt, Current | 48,100 |  |  |  |
Cash and cash equivalents | 14,628 |  | $ 67,263 |  | $ 29,947
Working capital | 94,200 |  |  |  |
Impairment charges against sites |  | $ 1,500 |  |  |
Scenario, Forecast [Member] |  |  |  |  |
Impact Of Covid [Line Items] |  |  |  |  |
Debt Current, Due At Date |  |  |  | $ 22,300 |
Westpac Bank Corporate Credit Facility [Member] |  |  |  |  |
Impact Of Covid [Line Items] |  |  |  |  |
Debt, Current | 8,700 |  |  |  |
Santander Bank [Member] |  |  |  |  |
Impact Of Covid [Line Items] |  |  |  |  |
Debt, Current | $ 8,000 |  |  |  |

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