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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 |

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