Consolidated Statements of Comprehensive (Loss) Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (702)	$ 96
Other comprehensive income (loss):
Foreign currency translation gain (loss)	12	(8)
Total other comprehensive income (loss)	12	(8)
Comprehensive (loss) income	(690)	88
Comprehensive loss attributable to non-controlling interest	(30)	(40)
Comprehensive (loss) income attributable to Perma-Fix Environmental Services, Inc. stockholders	$ (660)	$ 128