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EXPENSES BY NATURE AND OTHER INCOME AND EXPENSES ITEMS - Other operating expenses (Q2) (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
EXPENSES BY NATURE AND OTHER INCOME AND EXPENSES ITEMS          
Net (losses) / gain on disposal of cryptocurrencies $ 471 $ (2,230) $ (3,131) $ 18,725 $ 2,716
(Recognition) / reversal of impairment loss of cryptocurrencies 1 (561)      
Net losses on disposal of mining machines (572)   (497) (36) (2,984)
Total $ (100) $ (2,791) $ (3,628) $ 14,625 $ (2,045)