Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Schedule of Impact of Adoption of Topic 606 (Details)

Summary of Significant Accounting Policies - Schedule of Impact of Adoption of Topic 606 (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jan. 02, 2018	Dec. 31, 2017
Disposal/transportation accrual	$ 1,449,000		$ 1,449,000		$ 1,616,000	$ 2,071,000
Deferred revenue	4,472,000		4,472,000		5,083,000	4,311,000
Accumulated deficit	(77,465,000)		(77,465,000)		$ (78,210,000)	$ (77,893,000)
Revenues	13,160,000	$ 12,715,000	25,817,000	$ 25,422,000
Cost of goods sold	11,117,000	10,361,000	20,454,000	20,349,000
Income from continuing operations, net of taxes	788,000	(1,226,000)	1,040,000	(1,901,000)
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders	$ 610,000	$ (1,169,000)	$ 745,000	$ (1,896,000)
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Continuing operations	$ 0.07	$ (0.09)	$ 0.09	$ (.14)
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Net income (loss) per common share	$ 0.05	$ (0.10)	$ 0.06	$ (0.16)
Net income	$ 582,000	$ (1,386,000)	$ 677,000	$ (2,192,000)
Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders	561,000	$ (1,154,000)	688,000	$ (1,869,000)
Effect of Change Higher/(Lower) [Member]
Disposal/transportation accrual	(323,000)		(323,000)
Deferred revenue	738,000		738,000
Accumulated deficit	57,000		57,000
Revenues	145,000		29,000
Cost of goods sold	92,000		22,000
Income from continuing operations, net of taxes	53,000		7,000
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders	$ 53,000		$ 7,000
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Continuing operations
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Net income (loss) per common share
Net income	$ 53,000		$ 7,000
Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders	53,000		7,000
Balances Before Adoption of Topic 606 [Member]
Disposal/transportation accrual	1,772,000		1,772,000
Deferred revenue	3,734,000		3,734,000
Accumulated deficit	(77,522,000)		(77,522,000)
Revenues	13,015,000		25,788,000
Cost of goods sold	11,025,000		20,432,000
Income from continuing operations, net of taxes	735,000		1,033,000
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders	$ 557,000		$ 738,000
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Continuing operations	$ 0.07		$ 0.09
Net income attributable to Perma-Fix Environmental Services, Inc. common stockholders - basic and diluted: Net income (loss) per common share	$ 0.05		$ 0.06
Net income	$ 529,000		$ 670,000
Comprehensive income attributable to Perma-Fix Environmental Services, Inc. stockholders	$ 508,000		$ 681,000