EARNINGS (LOSS) PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Numerator:
Net loss attributable to Apyx	$ (3,728)	$ (4,370)	$ (10,369)	$ (14,273)
Denominator:
Weighted average shares outstanding - basic and diluted (in shares)	34,216	34,078	34,193	34,039
Earnings (loss) per share:
Basic and diluted (in dollars per share)	$ (0.11)	$ (0.13)	$ (0.30)	$ (0.42)
Restricted stock
Anti-dilutive instruments excluded from diluted loss per common share:
Anti-dilutive instruments (in shares)	45	90	45	90
Options
Anti-dilutive instruments excluded from diluted loss per common share:
Anti-dilutive instruments (in shares)	5,028	4,060	5,028	4,060