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SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Property, Plant and Equipment [Line Items]    
Credit terms, billing term, lower limit 10 days  
Credit terms, billing term, upper limit 90 days  
Allowances for doubtful accounts $ 300 $ 273
Contract liabilities 600 400
Contract assets 200 100
Advertising expense $ 800 $ 1,500
Apyx SY Medical Devices (Ningbo) Co., Ltd    
Property, Plant and Equipment [Line Items]    
Ownership percentage 51.00%  
Building and improvements    
Property, Plant and Equipment [Line Items]    
Useful lives 39 years  
Machinery and equipment | Minimum    
Property, Plant and Equipment [Line Items]    
Useful lives 3 years  
Machinery and equipment | Maximum    
Property, Plant and Equipment [Line Items]    
Useful lives 10 years  
Furniture and fixtures | Minimum    
Property, Plant and Equipment [Line Items]    
Useful lives 5 years  
Furniture and fixtures | Maximum    
Property, Plant and Equipment [Line Items]    
Useful lives 10 years  
Computer equipment and software | Minimum    
Property, Plant and Equipment [Line Items]    
Useful lives 3 years  
Computer equipment and software | Maximum    
Property, Plant and Equipment [Line Items]    
Useful lives 5 years  
Molds | Minimum    
Property, Plant and Equipment [Line Items]    
Useful lives 7 years  
Molds | Maximum    
Property, Plant and Equipment [Line Items]    
Useful lives 15 years  
Renuvion/J-Plasma generators    
Property, Plant and Equipment [Line Items]    
Product warranty 4 years  
Mounting Fixtures    
Property, Plant and Equipment [Line Items]    
Product warranty 2 years  
Accessories    
Property, Plant and Equipment [Line Items]    
Product warranty 1 year