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Right of use of assets - Summary of future minimum lease payments due to operating leases (Details)
Jun. 30, 2022
USD ($)
Leases [Abstract]  
2022 $ 2,222,000
2023 549,000
2024 218,000
2025 164,000
Total lease payments 3,153,000
Less: imputed interest (166,000)
Total $ 2,987,000