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INTEREST IN JOINT VENTURE INVESTMENT - Changes in Ownership Interest (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Stockholders' Equity Attributable to Noncontrolling Interest [Abstract]    
Beginning interest in China JV $ 138  
Contributions 195 $ 148
Net loss attributable to Apyx (28) (10)
Ending interest in China JV 305 138
China joint venture    
Stockholders' Equity Attributable to Noncontrolling Interest [Abstract]    
Beginning interest in China JV 144 0
Contributions 203 154
Net loss attributable to Apyx (30) (10)
Ending interest in China JV $ 317 $ 144