Perma-Fix Environmental Services (PESI) 10-K 24 Mar 17 2016 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Mar. 17, 2017	Jun. 30, 2016
Document Information [Line Items]
Entity Registrant Name	PERMA FIX ENVIRONMENTAL SERVICES INC
Entity Central Index Key	891,532
Trading Symbol	pesi
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding (in shares)		11,681,349
Entity Public Float			$ 54,307
Document Type	10-K
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash		$ 163	$ 1,435
Restricted cash			99
Accounts receivable, net of allowance for doubtful accounts of $272 and $1,474, respectively		8,705	9,673
Unbilled receivables - current		2,926	4,569
Inventories		370	377
Prepaid and other assets		2,358	3,929
Current assets related to discontinued operations		85	34
Total current assets		14,607	20,116
Property and equipment:
Buildings and land		22,544	20,209
Equipment		33,454	35,191
Vehicles		409	422
Leasehold improvements		11,626	11,626
Office furniture and equipment		1,738	1,755
Construction-in-progress		667	497
		70,438	69,700
Less accumulated depreciation		(53,323)	(49,707)
Net property and equipment		17,115	19,993
Property and equipment related to discontinued operations		81	531
Intangibles and other long term assets:
Permits		8,474	16,761
Other intangible assets - net		1,721	2,066
Accounts receivable - non-current		212
Unbilled receivables – non-current		216	707
Finite risk sinking fund		21,487	21,380
Other assets		1,154	1,359
Other assets related to discontinued operations		268
Total assets	[1]	65,335	82,913
Current liabilities:
Accounts payable		4,244	6,109
Accrued expenses		4,094	4,341
Disposal/transportation accrual		1,390	1,107
Deferred revenue		2,691	2,631
Accrued closure costs - current		2,177
Current portion of long-term debt		1,184	1,481
Current portion of long-term debt - related party			950
Current liabilities related to discontinued operations		958	531
Total current liabilities		16,738	17,150
Accrued closure costs		5,138	5,301
Other long-term liabilities		931	867
Deferred tax liabilities		2,362	5,424
Long-term debt, less current portion		7,649	7,405
Long-term liabilities related to discontinued operations		361	1,064
Total long-term liabilities		16,441	20,061
Total liabilities		33,179	37,211
Commitments and Contingencies (Note 14)
Series B Preferred Stock of subsidiary, $1.00 par value; 1,467,396 shares authorized, 1,284,730 shares issued and outstanding, liquidation value $1.00 per share plus accrued and unpaid dividends of $931 and $867, respectively (Note 8)		1,285	1,285
Stockholders' Equity:
Preferred Stock, $.001 par value; 2,000,000 shares authorized, no shares issued and outstanding
Common Stock, $.001 par value; 30,000,000 shares authorized; 11,677,025 and 11,551,232 shares issued, respectively; 11,669,383 and 11,543,590 shares outstanding, respectively		11	11
Additional paid-in capital		106,048	105,556
Accumulated deficit		(74,213)	(60,808)
Accumulated other comprehensive loss		(162)	(117)
Less Common Stock in treasury, at cost; 7,642 shares		(88)	(88)
Total Perma-Fix Environmental Services, Inc. stockholders' equity		31,596	44,554
Non-controlling interest		(725)	(137)
Total stockholders' equity		30,871	44,417
Total liabilities and stockholders' equity		$ 65,335	$ 82,913
[1]	Segment assets have been adjusted for intercompany accounts to reflect actual assets for each segment.

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accounts receivable, allowance for doubtful accounts	$ 272	$ 1,474
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	30,000,000	30,000,000
Common stock, shares issued (in shares)	11,677,025	11,551,232
Common stock, shares outstanding (in shares)	11,669,383	11,543,590
Treasury stock, shares (in shares)	7,642	7,642
Series B Preferred Stock [Member]
Preferred stock of subsidiary, par value (in dollars per share)	$ 1	$ 1
Preferred stock of subsidiary, shares authorized (in shares)	1,467,396	1,467,396
Preferred stock of subsidiary, shares issued (in shares)	1,284,730	1,284,730
Preferred stock of subsidiary, shares outstanding (in shares)	1,284,730	1,284,730
Preferred stock of subsidiary, liquidation value (in dollars per share)	$ 1	$ 1
Preferred stock of subsidiary, accrued and unpaid dividends	$ 931	$ 867

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Net revenues	$ 51,219	$ 62,383
Cost of goods sold	44,135	48,032
Gross profit	7,084	14,351
Selling, general and administrative expenses	10,724	10,996
Research and development	2,046	2,302
Loss (gain) on disposal of property and equipment	2	(80)
Impairment loss on tangible assets	1,816
Impairment loss on intangible assets	8,288
(Loss) income from operations	(15,792)	1,133
Other income (expense):
Interest income	110	53
Interest expense	(489)	(489)
Interest expense-financing fees	(108)	(228)
Other	22	11
(Loss) income from continuing operations before taxes	(16,257)	480
Income tax (benefit) expense	(2,994)	543
Loss from continuing operations, net of taxes	(13,263)	(63)
Loss from discontinued operations, net of taxes (Note 9)	(730)	(1,864)
Net loss	(13,993)	(1,927)
Net loss attributable to non-controlling interest	(588)	(877)
Net loss attributable to Perma-Fix Environmental Services, Inc. common stockholders	$ (13,405)	$ (1,050)
Net (loss) income per common share attributable to Perma-Fix Environmental Services, Inc. stockholders - basic and diluted:
Continuing operations (in dollars per share)	$ (1.09)	$ 0.07
Discontinued operations (in dollars per share)	(0.06)	(0.16)
Net loss per common share (in dollars per share)	$ (1.15)	$ (0.09)
Number of common shares used in computing net income (loss) per share:
Basic (in shares)	11,608	11,516
Diluted (in shares)	11,608	11,552

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Net loss	$ (13,993)	$ (1,927)
Foreign currency translation adjustments	(45)	(128)
Total other comprehensive loss	(45)	(128)
Comprehensive loss	(14,038)	(2,055)
Comprehensive loss attributable to non-controlling interest	(588)	(877)
Comprehensive loss attributable to Perma-Fix Environmental Services, Inc. common stockholders	$ (13,450)	$ (1,178)

Consolidated Statement of Stock

Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2014	11,476,485
Balance at Dec. 31, 2014	$ 11	$ 104,541	$ (88)	$ 11	$ 333	$ (59,758)	$ 45,050
Net loss					(877)	(1,050)	(1,927)
Foreign currency translation				(128)			(128)
Issuance of stock - Perma-Fix Medical S.A., net of expenses of $29		631			407		$ 1,038
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	3,423						3,423
Issuance of Common Stock upon exercise of options		10					$ 10
Issuance of Common Stock for services (in shares)	71,324
Issuance of Common Stock for services		282					282
Stock-Based Compensation		92					92
Balance (in shares) at Dec. 31, 2015	11,551,232
Balance at Dec. 31, 2015	$ 11	105,556	(88)	(117)	(137)	(60,808)	44,417
Net loss					(588)	(13,405)	(13,993)
Foreign currency translation				(45)			(45)
Issuance of Common Stock for services (in shares)	55,793
Issuance of Common Stock for services		238					238
Stock-Based Compensation		98					98
Balance (in shares) at Dec. 31, 2016	11,677,025
Balance at Dec. 31, 2016	$ 11	106,048	$ (88)	$ (162)	$ (725)	$ (74,213)	30,871
Issuance of Common Stock upon exercise of Warrants (in shares)	70,000
Issuance of Common Stock upon exercise of Warrants		$ 156					$ 156

Consolidated Statement of Stoc7

Consolidated Statement of Stockholders' Equity (Parentheticals)	12 Months Ended
	Dec. 31, 2015USD ($)
Additional Paid-in Capital [Member]
Issuance of stock - Perma-Fix Medical S.A., expenses	$ 29

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities:
Net loss	$ (13,993)	$ (1,927)
Less: loss on discontinued operations, net of taxes (Note 9)	(730)	(1,864)
Loss from continuing operations	(13,263)	(63)
Depreciation and amortization	4,165	3,717
Amortization of debt issuance costs	173	221
Deferred tax (benefit) expense	(3,062)	418
Recovery of bad debt reserves	(314)	(433)
Loss (gain) on disposal of plant, property and equipment	2	(80)
Tangible Asset Impairment Charges	1,816
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	8,288
Issuance of common stock for services	238	282
Stock-based compensation	98	92
Changes in operating assets and liabilities of continuing operations:
Restricted cash	35
Accounts receivable	1,070	(968)
Unbilled receivables	2,134	2,174
Prepaid expenses, inventories and other assets	2,870	41
Accounts payable, accrued expenses and unearned revenue	(3,187)	(3,657)
Cash provided by continuing operations	1,063	1,744
Cash used in discontinued operations	(959)	(2,862)
Cash provided by (used in) operating activities	104	(1,118)
Cash flows from investing activities:
Purchases of property and equipment	(436)	(623)
Proceeds from sale of property and equipment	44	127
Release of proceeds previously held in escrow from sale of SYA subsidiary in 2014		50
Payments to finite risk sinking fund	(107)	(46)
Cash used in investing activities of continuing operations	(499)	(492)
Proceeds from sale of property of discontinued operations	84
Cash used in investing activities	(415)	(492)
Cash flows from financing activities:
Borrowing on revolving credit	57,976	67,614
Repayments of revolving credit	(56,522)	(65,265)
Principal repayments of long term debt	(1,508)	(2,320)
Principal repayments of long term debt - related party	(1,000)	(1,500)
Payment of debt issuance costs	(122)	(40)
Proceeds from issuance of common stock upon exercise of warrants/options	156	10
Proceeds from stock subscription - Perma-Fix Medical S.A.	64	971
Cash used in financing activities of continuing operations	(956)	(530)
Effect of exchange rate changes on cash	(5)	(105)
Decrease in cash	(1,272)	(2,245)
Cash at beginning of period	1,435	3,680
Cash at end of period	163	1,435
Supplemental disclosure:
Interest paid	424	903
Income taxes paid	41	116
Proceeds from stock subscription for Perma-Fix Medical S.A. held in escrow		$ 67

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	NOTE 1 DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION Perma-Fix Environmental Services, Inc. (the Company, which may three TREATMENT SEGMENT, which includes: - nuclear, low-level radioactive, mixed waste (containing both hazardous and low-level radioactive constituents), hazardous and non-hazardous waste treatment, processing and disposal services primarily through four - research and development (“R&D”) activities to identify, develop and implement innovative waste processing techniques for problematic waste streams. SERVICES SEGMENT, which includes: - On-site waste management services to commercial and governmental customers; - Technical services, which include: o professional radiological measurement and site survey of large government and commercial installations using advanced methods, technology and engineering; o integrated Occupational Safety and Health services including industrial hygiene (“IH”) assessments; hazardous materials surveys, e.g., exposure monitoring; lead and asbestos management/abatement oversight; indoor air quality evaluations; health risk and exposure assessments; health & safety plan/program development, compliance auditing and training services; and Occupational Safety and Health Administration (“OSHA”) citation assistance; o global technical services providing consulting, engineering, project management, waste management, environmental, and decontamination and decommissioning field, technical, and management personnel and services to commercial and government customers; - Nuclear services, which include: o technology-based services including engineering, decontamination and decommissioning (“D&D”), specialty services and construction, logistics, transportation, processing and disposal; o remediation of nuclear licensed and federal facilities and the remediation cleanup of nuclear legacy sites. Such services capability includes: project investigation; radiological engineering; partial and total plant D&D; facility decontamination, dismantling, demolition, and planning; site restoration; site construction; logistics; transportation; and emergency response; and - A company owned equipment calibration and maintenance laboratory that services, maintains, calibrates, and sources (i.e., rental) of health physics, IH and customized nuclear, environmental, and occupational safety and health (“NEOSH”) instrumentation. MEDICAL SEGMENT, which includes: R&D of a new medical isotope production technology by our majority-owned Polish subsidiary, Perma-Fix Medical S.A. and its wholly-owned subsidiary Perma-Fix Medical Corporation (“PFM Corporation”) (together known as “PF Medical”). The Company’s Medical Segment has not generated any revenue as it has been primarily in the R&D stage . All costs incurred by the Medical Segment are reflected within R&D in the accompanying consolidated financial statements (see “Financial Position and Liquidity” below for further discussion of Medical Segment’s significant curtailment of its R&D activities during the latter part of 2016). The Company’s continuing operations consist of Diversified Scientific Services, Inc. (“DSSI”), East Tennessee Materials & Energy Corporation (“M&EC”) (see “Note 3 January 2018), The Company’s discontinued operations (see Note 9) 2011 Financial Position and Liquidity The Company’s 2016 fourth 2016, first nine 2017. 2016 second 2016 one January 2018 3 The Company’s cash flow requirements during 2016 During 2016, 2016, 4 The Company’s cash flow requirements for 2017 first 2018 second 2017 14

Note 2 - Summary of Significant

Note 2 - Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Significant Accounting Policies [Text Block]	NOTE 2 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Principles of Consolidation Our consolidated financial statements include our accounts, those of our wholly-owned subsidiaries, and our majority-owned Polish subsidiary, PF Medical, after elimination of all significant intercompany accounts and transactions. Reclassifications Certain prior year amounts have been reclassified to conform with the current year presentation. Use of Estimates When the Company prepares financial statements in conformity with accounting standards generally accepted in the United States of America (“US GAAP”), the Company makes estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements, as well as, the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. See Notes 9, 12, 13 14 Restricted Cash During the first 2016, December 31, 2015 $35,000 2014. Accounts Receivable Accounts receivable are customer obligations due under normal trade terms requiring payment within 30 60 60 100% 60 The following table set forth the activity in the allowance for doubtful accounts for the years ended December 31, 2016 2015 Year Ended December 31, 2016 2015 Allowance for doubtful accounts-beginning of year $ 1,474 $ 2,170 Net recovery of bad debt reserve (314 ) (433 ) Write-off (888 ) (263 ) Allowance for doubtful accounts-end of year $ 272 $ 1,474 Retainage receivables represent amounts that are billed or billable to our customers, but are retained by the customer until completion of the project or as otherwise specified in the contract. Our retainage receivable balances are all current. Retainage receivables of approximately $0 $229,000 December 31, 2016 2015, Unbilled Receivables Unbilled receivables are generated by differences between invoicing timing and our proportional performance based methodology used for revenue recognition purposes. As major processing and contract completion phases are completed and the costs are incurred, the Company recognizes the corresponding percentage of revenue. Within our Treatment Segment, the facilities experience delays in processing invoices due to the complexity of the documentation that is required for invoicing, as well as the difference between completion of revenue recognition milestones and agreed upon invoicing terms, which results in unbilled receivables. The timing differences occur for several reasons: partially from delays in the final processing of all wastes associated with certain work orders and partially from delays for analytical testing that is required after the facilities have processed waste but prior to our release of waste for disposal. The tasks relating to these delays usually take several months to complete. As the Company now has historical data to review the timing of these delays, the Company realizes that certain issues, including, but not limited to, delays at our third twelve Unbilled receivables within our Services Segment can result from: (1) (2) Inventories Inventories consist of treatment chemicals, saleable used oils, and certain supplies. Additionally, the Company has replacement parts in inventory, which are deemed critical to the operating equipment and may first first Property and Equipment Property and equipment expenditures are capitalized and depreciated using the straight-line method over the estimated useful lives of the assets for financial statement purposes, while accelerated depreciation methods are principally used for income tax purposes. Generally, asset lives range from ten forty three seven In accordance with Accounting Standards Codification (“ASC”) 360, may During the second 2016, $1,816,000 January 2018 3 Our depreciation expense totaled approximately $3,717,000 $3,246,000 2016 2015, Intangible Assets Intangible assets consist primarily of the recognized value of the permits required to operate our business. We continually monitor the propriety of the carrying amount of our permits to determine whether current events and circumstances warrant adjustments to the carrying value. Indefinite-lived intangible assets are not amortized but are reviewed for impairment annually as of October 1, may forecasted revenue, gross margin, growth rate, operating income, timing of expected future cash flows, and the determination of appropriate long term discount rates. During the second 2016, 3 October 1, 2016 no October 1, 2015 no December 31, 2015. Intangible assets that have definite useful lives are amortized using the straight-line method over the estimated useful lives (with the exception of customer relationships which are amortized using an accelerated method) and are excluded from our annual intangible asset valuation review as of October 1. one Research and Development (“R&D”) Operational innovation and technical know-how is very important to the success of our business. Our goal is to discover, develop, and bring to market innovative ways to process waste that address unmet environmental needs and to develop new company service offerings. The Company conducts research internally and also through collaborations with other third third 730, $1,489,000 $2,114,000 December 31, 2016 2015, Accrued Closure Costs and Asset Retirement Obligations (“ARO”) Accrued closure costs represent our estimated environmental liability to clean up our facilities, as required by our permits, in the event of closure. ASC 410, Income Taxes Income taxes are accounted for in accordance with ASC 740, 740, ASC 740 13 ASC 740 740 two 50% 740 The Company reassesses the validity of our conclusions regarding uncertain income tax positions on a quarterly basis to determine if facts or circumstances have arisen that might cause us to change our judgment regarding the likelihood of a tax position’s sustainability under audit. Foreign Currency The Company’s foreign subsidiaries include PF UK Limited, PF Canada and PF Medical. Assets and liabilities are translated to U.S. dollars at the exchange rate in effect at the balance sheet date and revenue and expenses at the average exchange rate for the period. Foreign currency translation adjustments for these subsidiaries are accumulated as a separate component of accumulated other comprehensive income (loss) in stockholders’ equity. Gains and losses resulting from foreign currency transactions are recognized in the Consolidated Statements of Operations. Concentration Risk The Company performed services relating to waste generated by the federal government, either directly as a prime contractor or indirectly for others as a subcontractor to the federal government, representing approximately $27,354,000 53.4% 2016, $36,105,000 57.9% 2015. Revenue generated by one $9,763,000 19.1% twelve December 31, 2016. March 2016 December 2016. custome $10,686,000 17.1% twelve December 31, 2015. December 2015. As our revenues are project/event based where the completion of one may one one Financial instruments that potentially subject the Company to significant concentrations of credit risk consist principally of cash and accounts receivable. The Company maintains cash with high quality financial institutions, which may The Company has two 10.1% 20.8% December 31, 2016. one 16.2% December 31, 2015. Gross Receipts Taxes and Other Charges ASC 605 45, Revenue Recognition Treatment Segment r evenues. may three may Services Segment revenues Under cost reimbursement contracts, the Services Segment is reimbursed for costs incurred plus a certain percentage markup for indirect costs, in accordance with contract provisions. Costs incurred in excess of contract funding may Contract costs include all direct labor, material and other non-labor costs and those indirect costs related to contract support, such as depreciation, fringe benefits, overhead labor, supplies, tools, repairs and equipment rental. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. Changes in job performance, job conditions and estimated profitability, including those arising from contract penalty provisions and final contract settlements, may Stock-Based Compensation The Company accounts for stock-based compensation in accordance with ASC 718, ASC 718 The Company recognizes stock-based compensation expense using a straight-line amortization method over the requisite service period, which is the vesting period of the stock option grant. As ASC 718 Comprehensive Income (Loss) The components of comprehensive income (loss) are net income (loss) and the effects of foreign currency translation adjustments. Income (Loss) Per Share Basic income (loss) per share is calculated based on the weighted-average number of outstanding common shares during the applicable period. Diluted income (loss) per share is based on the weighted-average number of outstanding common shares plus the weighted-average number of potential outstanding common shares. In periods where they are anti-dilutive, such amounts are excluded from the calculations of dilutive earnings per share. Income (loss) per share is computed separately for each period presented. Fair Value of Financial Instruments Certain assets and liabilities are required to be recorded at fair value on a recurring basis, while other assets and liabilities are recorded at fair value on a nonrecurring basis. Fair value is determined based on the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants. The three Level 1 — Level 2 — 1, Level 3 — Financial instruments include cash and restricted cash (Level 1), 3). December 31, 2016 December 31, 2015, Recently Adopted Accounting Standards In April 2015, 2015 03, 2015 03 charge asset. It is effective for annual reporting periods beginning after December 15, 2015 The Company adopted ASU 2015 03 first 2016. 2015 03 2015 03 $152,000, $27,000, $125,000 December 31, 2015 In August 2014, 2014 15, 2014 15 first December 15, 2016. 2014 15 fourth 2016 1 In July 2015, 2015 11, 330): 2015 11 first first first December 15, 2016. 2015 11 fourth 2016 In March 2016, 2016 09, 718): 2016 09 2016 09 effective for interim and annual periods beginning after December 15, 2016. 2015 11 Recently Issued Accounting Standards – Not Yet Adopted In May 2014, 2014 09, 606)," 2014 09 2014 09 2014 09 2014 09, December 15, 2016 2014 09 may In February 2016, 2016 02, 842).” 2016 02, 2016 02 2016 02 December 15, 2018, In August 2016, 2016 15, 230): 230, November 2016, 2016 18, 230), 2016 15 2016 18 December 15, 2017. In October 2016, 2016 16 , 740): 2016 16, 2016 16 December 15, 2017,

Note 3 - M&EC Facility

Note 3 - M&EC Facility	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Property, Plant, and Equipment and Intangible Assets [Text Block]	NOTE 3 M&EC FACILITY During the second 2016, January 21, 2018. Simultaneously, the Company has begun required clean-up/maintenance procedures at M&EC’s Oak Ridge, Tennessee facility in accordance with M&EC’s Resource Conservation and Recovery Act (“RCRA”) permit requirements. As a result of the Company’s decision to close its M&EC facility, the Company’s financial results were impacted by certain non-cash impairment losses, write-offs and accruals recorded during the second 2016 The Company performs its annual intangible test as of October 1 350, may June 30, 2016 $8,288,000. M&EC is required to complete certain clean-up/maintenance activities at its Oak Ridge, Tennessee facility pursuant to its RCRA permit. The extent and cost of these activities are determined by federal/state mandate requirements. The Company performed an analysis and related estimate of the cost to complete the RCRA portion of these activities and based on this analysis, the Company recorded an additional $1,626,000 In accordance with ASC 360, $1,816,000 second 2016. 2 28 June 30, 2016 1.6 $4,728,000 June 30, 2016 1.6 In the second 2016, $587,000 During the year ended December 31, 2016 2015, $4,419,000 $6,591,000,

Note 4 - PF Medical

Note 4 - PF Medical	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Perma-Fix Medical S.A. [Text Block]	NOTE4 PF MEDICAL On July 24, 2015, 99m Digirad purchased, in a private placement, 71,429 $1,000,000, July 24, 2015. $29,000. 71,429 5.4% 64.0% 60.5%. Tc99m 99m 99m On October 11, 2016, $10,000,000 $8.00 $5,000,000 $5,000,000 second 120 one second 48.6% 48 468,750 $9.00 48 183,606 $14.00 $500,000 30 $1,962,000 December 31, 2016) 120

Note 5 - Permit and Other Intan

Note 5 - Permit and Other Intangible Assets	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Intangible Assets Disclosure [Text Block]	NOTE 5 PERMIT AND OTHER INTANGIBLE ASSETS The following table summarizes changes in the carrying amount of permits. No Permit (amount in thousands) Treatment Balance as of December 31, 2014 $ 16,709 PCB permit amortized (1) (55 ) Permit in progress 107 Balance as of December 31, 2015 16,761 PCB permit amortized (1) (55 ) Permit in progress 56 Permit impairment for M&EC subsidiary (8,288 ) Balance as of December 31, 2016 $ 8,474 (1) one 2009. ten $117,000 $172,000 December 31, 2016 2015, The following table summarizes information relating to the Company’s definite-lived intangible assets: December 31, 2016 December 31, 2015 Useful Lives (Years) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Intangibles (amount in thousands) Patent 3 - 17 $ 577 $ (274 ) $ 303 $ 539 $ (203 ) $ 336 Software 3 405 (383 ) 22 395 (364 ) 31 Customer relationships 12 3,370 (1,974 ) 1,396 3,370 (1,671 ) 1,699 Permit 10 545 (428 ) 117 545 (373 ) 172 Total $ 4,897 $ (3,059 ) $ 1,838 $ 4,849 $ (2,611 ) $ 2,238 The intangible assets are amortized on a straight-line basis over their useful lives with the exception of customer relationships which are being amortized using an accelerated method. The following table summarizes the expected amortization over the next five Year Amount (In thousands) 2017 $ 372 2018 337 2019 254 2020 218 2021 198 $ 1,379 Amortization expense recorded for definite-lived intangible assets was approximately $448,000 $471,000, December 31, 2016 2015,

Note 6 - Capital Stock, Stock P

Note 6 - Capital Stock, Stock Plans, Warrants, and Stock Based Compensation	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	NOTE 6 CAPITAL STOCK, STOCK PLANS, WARRANTS, AND STOCK BASED COMPENSATION Stock Option Plans The Company adopted the 2003 “2003 July 29, 2003. 2003 six 10 2003 65% 100% 75% 2003 6,000 2,400 2003 800,000, 2003 On April 28, 2010, 2010 (“2010 September 29, 2010. 2010 200,000 200,000 ten 10% five 2010 10% 10% 110% No 2016 2015. 2015, 3,423 3,423 2003 $2.79 $10,000. The summary of the Company’s total plans as of December 31, 2016 2015, Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (years) Aggregate Intrinsic Value (2) Options outstanding January 1, 2016 218,200 $ 7.65 Granted 62,000 4.09 Exercised ─ ─ Forfeited/expired (33,000 ) 8.14 Options outstanding end of period (1) 247,200 $ 6.69 4.3 $ 20,940 Options exercisable at December 31, 2016 (1) 181,867 $ 7.61 3.7 $ 20,940 Options vested and expected to be vested at December 31, 2016 239,750 $ 6.78 4.3 $ 20,940 Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (years) Aggregate Intrinsic Value (2) Options outstanding January 1, 2015 239,023 $ 7.81 Granted 12,000 4.19 Exercised (3,423 ) 2.79 $ 4,298 Forfeited/expired (29,400 ) 8.13 Options outstanding end of period (1) 218,200 $ 7.65 4.8 $ 14,676 Options exercisable at December 31, 2015 (1) 169,533 $ 8.47 4.5 $ 14,676 Options vested and expected to be vested at December 31, 2015 212,333 $ 7.72 4.8 $ 14,676 (1) $2.79 $14.75 (2) price of the option. The summary of the Company’s nonvested options as of December 31, 2016 Shares Weighted Average Grant-Date Fair Value Non-vested options January 1, 2016 48,667 $ 2.87 Granted 62,000 2.19 Vested (30,334 ) 2.87 Forfeited (15,000 ) 2.88 Non-vested options at December 31, 2016 65,333 $ 2.23 Capital Stock Issued for Services The Company issued a total of 55,793 71,324 2016 2015, 2003 65% 100% 75% $233,000 $269,000 twelve December 31, 2016 2015, Preferred Share Rights Plan In May 2008, tender In general, under the terms of the Rights Plan, subject to certain limited exceptions, if a person or group acquires 20% tender 20% may one one $.001 two 50% two $13.00, The Rights will cause substantial dilution to a person or group that attempts to acquire us on terms not approved by our board of directors. The Rights may $0.001 20% May 2, 2018. Warrants and Capital Stock Issuance for Debt As of December 31, 2016, no August 2, 2016, 70,000 two $2.23, two $3,000,000 August 2, 2013 10 Shares Reserved At December 31, 2016, 247,200 Stock Based Compensation As discussed above, the Company has certain stock option plans which it awards NQSOs and ISOs to employees, officers, and outside directors. Stock options granted to employees generally have a six one third three ten six On May 15, 2016, 50,000 2010 six one third three $3.97 On July 28, 2016, 12,000 2003 five seven July 28, 2016. 2003 ten six $4.60 2003 The Company estimates fair value of stock options using the Black-Scholes valuation model. Assumptions used to estimate the fair value of stock options granted include the exercise price of the award, the expected term, the expected volatility of the Company’s stock over the option’s expected term, the risk-free interest rate over the option’s expected term, and the expected annual dividend yield. The fair value of the options granted during 2016 2015 2015): Employee Stock Option Granted May 15, 2016 Weighted-average fair value per share $ 2.00 Risk -free interest rate (1) 1.27% Expected volatility of stock (2) 53.12% Dividend yield None Expected option life (3) 6.0 Outside Director Stock Options Granted July 28, 2016 September 17, 2015 Weighted-average fair value per share $ 3.0 $ 2.84 Risk -free interest rate (1) 1.52% 2.21% Expected volatility of stock (2) 55.99% 57.98% Dividend yield None None Expected option life (3) 10.0 10.0 (1) The risk-free interest rate is based on the U.S. Treasury yield in effect at the grant date over the expected term of the option. (2) The expected volatility is based on historical volatility from our traded Common Stock over the expected term of the option. (3 ) The following table summarizes stock-based compensation recognized for fiscal years 2016 2015. Year Ended 2016 2015 Employee Stock Options $ 53,000 $ 53,000 Director Stock Options 45,000 39,000 Total $ 98,000 $ 92,000 As of December 31, 2016, $74,000 $43,000 2017, $30,000 2018, $1,000 2019.

Note 7 - Income (Loss) Per Shar

Note 7 - Income (Loss) Per Share	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Earnings Per Share [Text Block]	NOTE 7 INCOME (LOSS) PER SHARE The following table reconciles the income (loss) and average share amounts used to compute both basic and diluted income (loss) per share: Twelve Months Ended December 31, (Amounts in Thousands, Except for Per Share Amounts) 2016 2015 Net income (loss) attributable to Perma-Fix Environmental Services, Inc., common stockholders: (Loss) income from continuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders $ (12,675 ) $ 814 Loss from discontinuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders (730 ) (1,864 ) Net loss attributable to Perma-Fix Environmental Services, Inc. common stockholders $ (13,405 ) $ (1,050 ) Basic loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders $ (1.15 ) $ (.09 ) Diluted loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders $ (1.15 ) $ (.09 ) Weighted average shares outstanding: Basic weighted average shares outstanding 11,608 11,516 Add: dilutive effect of stock options ─ 6 Add: dilutive effect of warrants ─ 30 Diluted weighted average shares outstanding 11,608 11,552 Potential shares excluded from above weighted average share calcualtions due to their anti-dilutive effect include: Stock options 150 183

Note 8 - Preferred Stock Issuan

Note 8 - Preferred Stock Issuance and Conversion	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Preferred Stock [Text Block]	NOTE 8 PREFERRED STOCK ISSUANCE AND CONVERSION Series B Preferred Stock The Series B Preferred Stock of the Company’s subsidiary, M&EC, is non-voting and non-convertible, has a $1.00 may $1.00. 5% $1.00 July 2002, $931,000 July 2002, $ 64,000 December 31, 2003 2016

Note 9 - Discontinued Operation

Note 9 - Discontinued Operations	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	NOTE 9 DISCONTINUED OPERATIONS The Company’s discontinued operations consist of all our subsidiaries included in our Industrial Segment: (1) 2011 (2) two (3) The following table presents the major class of assets of discontinued operations as of December 31, 2016 2015. May 2, 2016, December 31, 2015) $450,000. $75,000. $46,000. $375,000 60 $7,250, first June 15, 2016. December 31, 2016, $337,000, $69,000 $268,000 December 31, 2016. (Amounts in Thousands) December 31, 2016 December 31, 2015 Current assets Other assets $ 85 $ 34 Total current assets 85 34 Long-term assets Property, plant and equipment, net (1) 81 531 Other assets 268 — Total long-term assets 349 531 Total assets $ 434 $ 565 Current liabilities Accounts payable $ 13 $ 85 Accrued expenses and other liabilities 268 437 Environmental liabilities 677 9 Total current liabilities 958 531 Long-term liabilities Closure liabilities 113 173 Environmental liabilities 248 891 Total long-term liabilities 361 1,064 Total liabilities $ 1,319 $ 1,595 (1) $10,000 The following table summarizes the results of discontinued operations for the years ended December 31, 2016 2015. For The Year Ended December 31, Amount in Thousands 2016 2015 Interest expense $ — $ (401 ) Operating loss from discontinued operations (730 ) (1,915 ) Income tax benefit — (51 ) Loss from discontinued operations (730 ) (1,864 ) Our loss for the twelve December 31, 2015 $201,000 $150,000 twelve December 31, 2015 $407,000 $400,000 fourth 2015 2013. Environmental Liabilities The Company has three 2008; At December 31, 2016, $925,000, $677,000 $25,000 December 31, 2015 $900,000. $25,000 $66,000 The current and long-term accrued environmental liability at December 31, 2016 Current Accrual Long-term Accrual Total PFD $ 75 $ 60 $ 135 PFM — 15 15 PFSG 602 173 775 Total liability $ 677 $ 248 $ 925

Note 10 - Long-term Debt

Note 10 - Long-term Debt	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Long-term Debt [Text Block]	NOTE 10 LONG-TERM DEBT Long-term debt consists of the following at December 31, 2016 December 31, 2015: (Amounts in Thousands) December 31, 2016 December 31, 2015 Revolving Credit eligible accounts receivable, subject to monthly borrowing base calculation, balance due March 24, 2021. Effective interest rate for 2016 and 2015 was 3.9% and 4.0%, respectively. (1) (2) $ 3,803 $ 2,349 Term Loan principal of $102, balance due on March 24, 2021. Effective interest rate for 2016 and 2015 was 3.8% and 3.7%, respectively. (1) (2) 5,030 (5) 6,514 (5) Promissory Note only, starting September 1, 2013 followed with twenty-four monthly installments of $125 in principal plus accrued interest (at annual rate of 2.99%). Note paid in full in August 2016. (3) (4) ─ 950 (4) Capital lease ( ─ 23 Total debt 8,833 9,836 Less current portion of long-term debt 1,184 2,431 Long-term debt $ 7,649 $ 7,405 (1) (2) April 1, 2016, $190,000. (3) (4) ($50,000) December 31, 2015. (5) ($151,000) ($152,000) December 31, 2016 December 31, 2015, Revolving Credit and Term Loan Agreement The Company is subject to an Amended and Restated Revolving Credit, Term Loan and Security Agreement (“Loan Agreement”) with PNC National Association (“PNC”), acting as agent and lender. The Loan Agreement, as subsequently amended prior to the March 24, 2016 $12,000,000 $16,000,000, $190,000 seven Under the Amended Loan Agreement, the Company had the option of paying an annual rate of interest due on the revolving credit at prime plus 2% 3% 2.5% 3.5%. On March 24, 2016, ● extended the due date of our credit facility from October 31, 2016 March 24, 2021 ● amended the term loan to approximately $6,100,000, $101,600 five $12,000,000 ● released $1,000,000 $1,500,000 2014 $1,500,000; ● revised the interest payment options to paying an annual rate of interest due on the revolving credit at prime plus 1.75% 2.75% (3.75% December 31, 2016) 2.25% 3.25%; ● revised our annual capital spending maximum limit from $6,000,000 $3,000,000. In connection with the March 24, 2016 $72,000. March 24, 2016 $68,000 470 50, Pursuant to the Revised Loan Agreement, the Company may 90 1.0% March 23, 2017, .50% March 23, 2017 March 23, 2018, .25% March 23, 2018 March 23, 2019. No March 23, 2019. The Company’s credit facility with PNC contains certain financial covenants, along with customary representations and warranties. A breach of any of these financial covenants, unless waived by PNC, could result in a default under our credit facility allowing our lender to immediately require the repayment of all outstanding debt under our credit facility and terminate all commitments to extend further credit. The Company failed to meet its minimum quarterly fixed charge coverage ratio (“FCCR”) requirement of 1.15:1 first 2016. May 23, 2016, $5,000 second 2016 August 22, 2016, second 2016. third 2016, fourth 2016 first 2017. $30,000,000 $26,000,000. $25,000, third 2016. November 17, 2016, ● waived the Company’s non-compliance with its minimum quarterly FCCR for the third 2016; ● further revised the methodology to be used in calculating the FCCR as follows (with continued requirement to maintain a minimum 1:15:1 fourth 2016 three December 31, 2016; first 2017 six March 31, 2017; second 2017 nine June 30, 2017; third 2017 twelve ● placed an immediate additional restriction on the Company’s borrowing availability of $750,000, $500,000 ● revised the interest payment options to paying an annual rate of interest due on the revolving credit at prime plus 2% 3% 2.5% 3.5%. March 24, 2016 March 24, 2016 1:15:1, twelve third 2016. As of December 31, 2016, $1,748,000, $1,250,000 Pursuant to the amendment dated November 17, 2016 $750,000 $2,000,000 14 All other terms of the Revised Loan Agreement remain principally unchanged. In connection with this amendment, the Company paid its lender a fee of $25,000, Promissory Note The Company entered into a $3,000,000 August 2, 2013 35,000 $2.23 August 2, 2016, 35,000 $156,000. 45,000 August 2016. The following table details the amount of the maturities of long-term debt maturing in future years as of December 31, 2016 Year ending December 31: (In thousands) 2017 $ 1,219 2018 1,219 2019 1,219 2020 1,219 2021 4,108 Total $ 8,984

Note 11 - Accrued Expenses

Note 11 - Accrued Expenses	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Accounts Payable and Accrued Liabilities Disclosure [Text Block]	NOT E 1 1 ACCRUED EXPENSES Accrued expenses at December 31, 2016 2015 Salaries and employee benefits $ 2,695 $ 2,822 Accrued sales, property and other tax 265 202 Interest payable 6 9 Insurance payable 675 833 Other 453 475 Total accrued expenses $ 4,094 $ 4,341 The Company had an individual Management Incentive Plan (“MIP”) for each of our Chief Executive Officer (“CEO”), Chief Financial Officer (“CFO”) and Chief Operating Officer (“COO”) (who retired from the position of COO effective September 30, 2016 December 31, 2016, 2015. $ 214,000 three 2015 third 2016. 2016.

Note 12 - Accrued Closure Costs

Note 12 - Accrued Closure Costs and ARO	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Asset Retirement Obligation Disclosure [Text Block]	NOTE 12 ACCRUED CLOSURE COSTS AND ARO Accrued closure costs represent our estimated environmental liability to clean up our fixed-based regulated facilities as required by our permits, in the event of closure. Changes to reported closure liabilities for the years ended December 31, 2016 2015, Amounts in thousands Balance as of December 31, 2014 $ 5,508 Accretion expense 299 Payments (331 ) Adjustment to closure liability (175 ) Balance as of December 31, 2015 5,301 Accretion expense 374 Payments (693 ) Adjustment to closure liability 2,333 Balance as of December 31, 2016 $ 7,315 As a result of the Company’s decision to close the M&EC subsidiary by January 2018, $1,626,000 second 2016 3 $707,000 2016, $283,000 $410,000 As of December 31, 2016, $3,058,000 $2,177,000 The decreases in closure liabilities in 2015 $331,000 $175,000 The reported closure asset or ARO, is reported as a component of “Net Property and equipment” in the Consolidated Balance Sheet for the years ended December 31, 2016 2015 Amounts in thousands Balance as of December 31, 2014 $ 2,870 Amortization of closure and post-closure asset (152 ) Adjustment to closure and post-closure asset (143 ) Balance as of December 31, 2015 2,575 Amortization of closure and post-closure asset (760 ) Adjustment to closure and post-closure asset 2,333 Balance as of December 31, 2016 $ 4,148 The adjustment to the ARO for 2016

Note 13 - Income Taxes

Note 13 - Income Taxes	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Income Tax Disclosure [Text Block]	NOTE 1 3 INCOME TAXES The components of current and deferred federal and state income tax (benefit) expense for continuing operations for the years ended December 31, 2016 2015 Federal income tax expense - current $ 9 $ 116 Federal income tax (benefit) expense - deferred (2,657 ) 142 State income tax expense - current 59 9 State income tax (benefit) expense - deferred (405 ) 276 Total income tax (benefit) expense $ (2,994 ) $ 543 We had temporary differences and net operating loss carry forwards from both our continuing and discontinued operations, which gave rise to deferred tax assets and liabilities at December 31, 2016 2015 2016 2015 Deferred tax assets: Net operating losses $ 7,288 $ 4,566 Environmental and closure reserves 3,189 2,497 Other 2,285 2,800 Deferred tax liabilities: Depreciation and amortization (162 ) (1,130 ) Goodwill and indefinite lived intangible assets (2,362 ) (5,443 ) Prepaid expenses (72 ) (122 ) 10,166 3,168 Valuation allowance (12,528 ) (8,592 ) Net deferred income tax liabilities (2,362 ) (5,424 ) An overall reconciliation between the expected tax (benefit) expense using the federal statutory rate of 34% 2016 2015 Tax (benefit) expense at statutory rate $ (5,527 ) $ 166 State tax benefit, net of federal benefit (785 ) (93 ) Change in deferred tax rates (82 ) 208 Permanent items 119 84 Difference in foreign rate 98 40 Change in deferred tax liabilities (260 ) 206 Other (241 ) (124 ) Increase in valuation allowance 3,684 56 Income tax (benefit) expense $ (2,994 ) $ 543 The provision for income taxes is determined in accordance with ASC 740, The Company regularly assesses the likelihood that the deferred tax asset will be recovered from future taxable income. The Company considers projected future taxable income and ongoing tax planning strategies, then records a valuation allowance to reduce the carrying value of the net deferred income taxes to an amount that is more likely than not to be realized. In 2016 2015, $12,528,000 $8,592,000, $3,684,000 $56,000 December 31, 2016 2015, We have estimated net operating loss carryforwards (“NOLs”) for federal and state income tax purposes of approximately $10,372,000 $65,658,000, December 31, 2016. $3,259,000 $4,179,000, 2021. 382 1986, may 1.1502 21 The tax years 2013 2015 No uncertain tax positions were identified by the Company for the years currently open under statute of limitations, including 2015 2016. As of December 31, 2016 2015, $0 $32,000

Note 14 - Commitments and Conti

Note 14 - Commitments and Contingencies	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	NOTE 14 COMMITMENTS AND CONTINGENCIES Hazardous Waste In connection with our waste management services, we process both hazardous and non-hazardous waste, which we transport to our own, or other, facilities for destruction or disposal. As a result of disposing of hazardous substances, in the event any cleanup is required, we could be a potentially responsible party for the costs of the cleanup notwithstanding any absence of fault on our part. Legal Matters In the normal course of conducting our business, we are involved in various litigation. We are not a party to any litigation or governmental proceeding which our management believes could result in any judgments or fines against us that would have a material adverse effect on our financial position, liquidity or results of future operations. Insurance The Company has a 25 June 2003 $39,000,000 2012. fourth 2016, $9,711,000. December 31, 2016, $29,163,000. $15,546,000 $15,460,000 December 31, 2016 2015, $1,075,000 $989,000 December 31, 2016 2015, twelve December 31, 2016 2015 $86,000 $31,000, 100% In August 2007, second $7,800,000 1.5%, four $8,200,000. December 31, 2016, $7,973,000. $5,941,000 $5,920,000 December 31, 2016 2015, $241,000 $220,000 December 31, 2016 2015, twelve December 31, 2016 2015 $21,000 $15,000, four 2011 2016 $41,000 $46,000 During the latter part of 2016, $5,941,000 $7,000,000 $2,500,000 $5,941,000 second 2017. $5,941,000 $3,441,000 Letter of Credits and Bonding Requirements From time to time, we are required to post standby letters of credit and various bonds to support contractual obligations to customers and other obligations, including facility closures. As of December 31, 2016, $1,514,000, Operating Leases The Company leases certain facilities and equipment under operating leases. The following table lists future minimum rental payments as of December 31, 2016 Year ending December 31: 2017 700 2018 178 beyond 2018 ― Total $ 878 Total rent expense was $1,027,000 $976,000 2016 2015, $735,000 $659,000 2016 2015,

Note 15 - Profit Sharing Plan

Note 15 - Profit Sharing Plan	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Pension and Other Postretirement Benefits Disclosure [Text Block]	NOTE 15 PROFIT SHARING PLAN The Company adopted a 401(k) 1992, 401 1974. 18 401(k) four January 1, April 1, July 1, October 1. may 100% may 25% five 2016 2015, $307,000 $303,000 401(k)

Note 16 - Related Party Transac

Note 16 - Related Party Transactions	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Related Party Transactions Disclosure [Text Block]	NOTE 16 RELATED PARTY TRANSACTIONS Related Party Transactions Mr. David Centofanti Mr. David Centofanti serves as our Vice President of Information Systems. For such position, he received annual compensation of $ 168,000 2016 2015. Mr. Robert L. Ferguson Mr. Robert L. Ferguson serves as an advisor to the Company’s Board and is also a member of the Supervisory Board of PF Medical, a majority-owned Polish subsidiary of the Company. Mr. Ferguson previously served as a Board member of the Company from June 2007 February 2010 August 2011 September 2012. $4,000 $59,000 $58,000 December 31, 2016 2015, August 2, 2013, $3,000,000 August 2016) 10 Mr. John Climaco On June 2, 2015, $150,000 Mr. Climaco previously had a consulting agreement with the Company effective September 2014 June 2, 2015 $22,000 $117,000 2015 Mr. Climaco is also a Director of Digirad Corporation. On July 24, 2015, 99m 4 Employment Agreements The Company has employment agreements (each dated July 10, 2014 three one September 30, 2016 December 31, 2016, July 10, 2014 September 30, 2016, 18

Note 17 - Segment Reporting

Note 17 - Segment Reporting	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	NOTE 17 SEGMENT REPORTING In accordance with ASC 280, ● from which we may ● whose operating results are regularly reviewed by the chief operating decision maker (“CODM”) to make decisions about resources to be allocated to the segment and assess its performance; and ● for which discrete financial information is available. We currently have three 9 The table below shows certain financial information of our reporting segments for 2016 2015 Segment Reporting as of and for the year ended December 31, 2016 Treatment Services Medical Segments Total Corporate (2) Consolidated Total Revenue from external customers $ 32,253 $ 18,966 — $ 51,219 (3) $ — $ 51,219 Intercompany revenues 40 28 — 68 — — Gross profit 4,015 3,069 — 7,084 — 7,084 Research and development 504 38 1,489 2,031 15 2,046 Interest income 3 — — 3 107 110 Interest expense (29 ) (2 ) — (31 ) (458 ) (489 ) Interest expense-financing fees — — — — (108 ) (108 ) Depreciation and amortization 3,451 632 — 4,083 82 4,165 Segment (loss) income before income taxes (10,119 ) (6) 744 (1,489 ) (10,864 ) (5,393 ) (16,257 ) Income tax (benefit) expense (3,013 ) (6) — — (3,013 ) 19 (2,994 ) Segment (loss) income (7,106 ) 744 (1,489 ) (7,851 ) (5,412 ) (13,263 ) Segment assets (1) 32,482 8,105 382 40,969 24,366 (4) 65,335 Expenditures for segment assets 418 17 1 436 — 436 Total debt — — — — 8,833 (5) 8,833 Segment Reporting as of and for the year ended December 31, 2015 Treatment Services Medical Segments Total Corporate (2) Consolidated Total Revenue from external customers $ 41,318 $ 21,065 — $ 62,383 (3) $ — $ 62,383 Intercompany revenues 113 25 — 138 — — Gross profit 10,910 3,441 — 14,351 — 14,351 Research and development 179 — 2,114 2,293 9 2,302 Interest income 6 — — 6 47 53 Interest expense (38 ) — — (38 ) (451 ) (489 ) Interest expense-financing fees (2 ) — — (2 ) (226 ) (228 ) Depreciation and amortization 2,949 725 — 3,674 43 3,717 Segment income (loss) before income taxes 7,101 1,178 (2,114 ) 6,165 (5,685 ) 480 Income tax expense 538 — — 538 5 543 Segment income (loss) 6,563 1,178 (2,114 ) 5,627 (5,690 ) (63 ) Segment assets (1) 46,307 9,481 1,793 57,581 25,332 (4) 82,913 Expenditures for segment assets 579 33 — 612 11 623 Total debt 23 — — 23 9,813 (5) 9,836 (1) (2) ( 3) $27,354,000 53.4% 2016 $36,105,000 57.9% 2015. two 2016 2015 Treatment $ 21,434,000 $ 30,130,000 Services 5,920,000 5,975,000 Total $ 27,354,000 $ 36,105,000 (4) Amount includes assets from our discontinued operations of $434,000 $565,000, December 31, 2016 2015, (5) Net of debt discount of ($0) ($50,000) 2016 2015, ($151,000) ($152,000) 2016 2015, 10 (6) Amounts include tangible and intangible asset impairment losses of $1,816,000 $8,288,000, second 2016 3 $3,203,000

Note 18 - Subsequent Events

Note 18 - Subsequent Events	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Subsequent Events [Text Block]	NOTE 18 SUBSEQUENT EVENTS Employment Agreement and MIPs On January 19, 2017, September 30, 2016, June 11, 2016 three $267,000. 16 On January 19, 2017, January 1, 2017. 5% 100% 2017 ($13,962 $279,248), 5% 100% 2017 ($13,350 $267,000), 5% 100% 2017 ($11,033 $220,667).

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	Principles of Consolidation Our consolidated financial statements include our accounts, those of our wholly-owned subsidiaries, and our majority-owned Polish subsidiary, PF Medical, after elimination of all significant intercompany accounts and transactions.
Reclassification, Policy [Policy Text Block]	Reclassifications Certain prior year amounts have been reclassified to conform with the current year presentation.
Use of Estimates, Policy [Policy Text Block]	Use of Estimates When the Company prepares financial statements in conformity with accounting standards generally accepted in the United States of America (“US GAAP”), the Company makes estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements, as well as, the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. See Notes 9, 12, 13 14
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]	Restricted Cash During the first 2016, December 31, 2015 $35,000 2014.
Trade and Other Accounts Receivable, Policy [Policy Text Block]	Accounts Receivable Accounts receivable are customer obligations due under normal trade terms requiring payment within 30 60 60 100% 60 The following table set forth the activity in the allowance for doubtful accounts for the years ended December 31, 2016 2015 Year Ended December 31, 2016 2015 Allowance for doubtful accounts-beginning of year $ 1,474 $ 2,170 Net recovery of bad debt reserve (314 ) (433 ) Write-off (888 ) (263 ) Allowance for doubtful accounts-end of year $ 272 $ 1,474 Retainage receivables represent amounts that are billed or billable to our customers, but are retained by the customer until completion of the project or as otherwise specified in the contract. Our retainage receivable balances are all current. Retainage receivables of approximately $0 $229,000 December 31, 2016 2015,
Trade and Other Accounts Receivable, Unbilled Receivables, Policy [Policy Text Block]	Unbilled Receivables Unbilled receivables are generated by differences between invoicing timing and our proportional performance based methodology used for revenue recognition purposes. As major processing and contract completion phases are completed and the costs are incurred, the Company recognizes the corresponding percentage of revenue. Within our Treatment Segment, the facilities experience delays in processing invoices due to the complexity of the documentation that is required for invoicing, as well as the difference between completion of revenue recognition milestones and agreed upon invoicing terms, which results in unbilled receivables. The timing differences occur for several reasons: partially from delays in the final processing of all wastes associated with certain work orders and partially from delays for analytical testing that is required after the facilities have processed waste but prior to our release of waste for disposal. The tasks relating to these delays usually take several months to complete. As the Company now has historical data to review the timing of these delays, the Company realizes that certain issues, including, but not limited to, delays at our third twelve Unbilled receivables within our Services Segment can result from: (1) (2)
Inventory, Policy [Policy Text Block]	Inventories Inventories consist of treatment chemicals, saleable used oils, and certain supplies. Additionally, the Company has replacement parts in inventory, which are deemed critical to the operating equipment and may first first
Property, Plant and Equipment, Policy [Policy Text Block]	Property and Equipment Property and equipment expenditures are capitalized and depreciated using the straight-line method over the estimated useful lives of the assets for financial statement purposes, while accelerated depreciation methods are principally used for income tax purposes. Generally, asset lives range from ten forty three seven In accordance with Accounting Standards Codification (“ASC”) 360, may During the second 2016, $1,816,000 January 2018 3 Our depreciation expense totaled approximately $3,717,000 $3,246,000 2016 2015,
Goodwill and Intangible Assets, Policy [Policy Text Block]	Intangible Assets Intangible assets consist primarily of the recognized value of the permits required to operate our business. We continually monitor the propriety of the carrying amount of our permits to determine whether current events and circumstances warrant adjustments to the carrying value. Indefinite-lived intangible assets are not amortized but are reviewed for impairment annually as of October 1, may forecasted revenue, gross margin, growth rate, operating income, timing of expected future cash flows, and the determination of appropriate long term discount rates. During the second 2016, 3 October 1, 2016 no October 1, 2015 no December 31, 2015. Intangible assets that have definite useful lives are amortized using the straight-line method over the estimated useful lives (with the exception of customer relationships which are amortized using an accelerated method) and are excluded from our annual intangible asset valuation review as of October 1. one
Research and Development Expense, Policy [Policy Text Block]	Research and Development (“R&D”) Operational innovation and technical know-how is very important to the success of our business. Our goal is to discover, develop, and bring to market innovative ways to process waste that address unmet environmental needs and to develop new company service offerings. The Company conducts research internally and also through collaborations with other third third 730, $1,489,000 $2,114,000 December 31, 2016 2015,
Asset Retirement Obligations, Policy [Policy Text Block]	Accrued Closure Costs and Asset Retirement Obligations (“ARO”) Accrued closure costs represent our estimated environmental liability to clean up our facilities, as required by our permits, in the event of closure. ASC 410,
Income Tax, Policy [Policy Text Block]	Income Taxes Income taxes are accounted for in accordance with ASC 740, 740, ASC 740 13 ASC 740 740 two 50% 740 The Company reassesses the validity of our conclusions regarding uncertain income tax positions on a quarterly basis to determine if facts or circumstances have arisen that might cause us to change our judgment regarding the likelihood of a tax position’s sustainability under audit.
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign Currency The Company’s foreign subsidiaries include PF UK Limited, PF Canada and PF Medical. Assets and liabilities are translated to U.S. dollars at the exchange rate in effect at the balance sheet date and revenue and expenses at the average exchange rate for the period. Foreign currency translation adjustments for these subsidiaries are accumulated as a separate component of accumulated other comprehensive income (loss) in stockholders’ equity. Gains and losses resulting from foreign currency transactions are recognized in the Consolidated Statements of Operations.
Concentration Risk, Credit Risk, Policy [Policy Text Block]	Concentration Risk The Company performed services relating to waste generated by the federal government, either directly as a prime contractor or indirectly for others as a subcontractor to the federal government, representing approximately $27,354,000 53.4% 2016, $36,105,000 57.9% 2015. Revenue generated by one $9,763,000 19.1% twelve December 31, 2016. March 2016 December 2016. custome $10,686,000 17.1% twelve December 31, 2015. December 2015. As our revenues are project/event based where the completion of one may one one Financial instruments that potentially subject the Company to significant concentrations of credit risk consist principally of cash and accounts receivable. The Company maintains cash with high quality financial institutions, which may The Company has two 10.1% 20.8% December 31, 2016. one 16.2% December 31, 2015.
Gross Receipts Taxes and Other Charges [Policy Text Block]	Gross Receipts Taxes and Other Charges ASC 605 45,
Revenue Recognition, Policy [Policy Text Block]	Revenue Recognition Treatment Segment r evenues. may three may Services Segment revenues Under cost reimbursement contracts, the Services Segment is reimbursed for costs incurred plus a certain percentage markup for indirect costs, in accordance with contract provisions. Costs incurred in excess of contract funding may Contract costs include all direct labor, material and other non-labor costs and those indirect costs related to contract support, such as depreciation, fringe benefits, overhead labor, supplies, tools, repairs and equipment rental. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. Changes in job performance, job conditions and estimated profitability, including those arising from contract penalty provisions and final contract settlements, may
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	Stock-Based Compensation The Company accounts for stock-based compensation in accordance with ASC 718, ASC 718 The Company recognizes stock-based compensation expense using a straight-line amortization method over the requisite service period, which is the vesting period of the stock option grant. As ASC 718
Comprehensive Income, Policy [Policy Text Block]	Comprehensive Income (Loss) The components of comprehensive income (loss) are net income (loss) and the effects of foreign currency translation adjustments.
Earnings Per Share, Policy [Policy Text Block]	Income (Loss) Per Share Basic income (loss) per share is calculated based on the weighted-average number of outstanding common shares during the applicable period. Diluted income (loss) per share is based on the weighted-average number of outstanding common shares plus the weighted-average number of potential outstanding common shares. In periods where they are anti-dilutive, such amounts are excluded from the calculations of dilutive earnings per share. Income (loss) per share is computed separately for each period presented.
Fair Value Measurement, Policy [Policy Text Block]	Fair Value of Financial Instruments Certain assets and liabilities are required to be recorded at fair value on a recurring basis, while other assets and liabilities are recorded at fair value on a nonrecurring basis. Fair value is determined based on the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants. The three Level 1 — Level 2 — 1, Level 3 — Financial instruments include cash and restricted cash (Level 1), 3). December 31, 2016 December 31, 2015,
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Adopted Accounting Standards In April 2015, 2015 03, 2015 03 charge asset. It is effective for annual reporting periods beginning after December 15, 2015 The Company adopted ASU 2015 03 first 2016. 2015 03 2015 03 $152,000, $27,000, $125,000 December 31, 2015 In August 2014, 2014 15, 2014 15 first December 15, 2016. 2014 15 fourth 2016 1 In July 2015, 2015 11, 330): 2015 11 first first first December 15, 2016. 2015 11 fourth 2016 In March 2016, 2016 09, 718): 2016 09 2016 09 effective for interim and annual periods beginning after December 15, 2016. 2015 11
New Accounting Pronouncements not yet Adopted, Policy [Policy Text Block]	Recently Issued Accounting Standards – Not Yet Adopted In May 2014, 2014 09, 606)," 2014 09 2014 09 2014 09 2014 09, December 15, 2016 2014 09 may In February 2016, 2016 02, 842).” 2016 02, 2016 02 2016 02 December 15, 2018, In August 2016, 2016 15, 230): 230, November 2016, 2016 18, 230), 2016 15 2016 18 December 15, 2017. In October 2016, 2016 16 , 740): 2016 16, 2016 16 December 15, 2017,

Note 2 - Summary of Significa28

Note 2 - Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Credit Losses for Financing Receivables, Current [Table Text Block]	Year Ended December 31, 2016 2015 Allowance for doubtful accounts-beginning of year $ 1,474 $ 2,170 Net recovery of bad debt reserve (314 ) (433 ) Write-off (888 ) (263 ) Allowance for doubtful accounts-end of year $ 272 $ 1,474

Note 5 - Permit and Other Int29

Note 5 - Permit and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Intangible Assets [Table Text Block]	Permit (amount in thousands) Treatment Balance as of December 31, 2014 $ 16,709 PCB permit amortized (1) (55 ) Permit in progress 107 Balance as of December 31, 2015 16,761 PCB permit amortized (1) (55 ) Permit in progress 56 Permit impairment for M&EC subsidiary (8,288 ) Balance as of December 31, 2016 $ 8,474
Schedule of Finite-Lived Intangible Assets [Table Text Block]	December 31, 2016 December 31, 2015 Useful Lives (Years) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Intangibles (amount in thousands) Patent 3 - 17 $ 577 $ (274 ) $ 303 $ 539 $ (203 ) $ 336 Software 3 405 (383 ) 22 395 (364 ) 31 Customer relationships 12 3,370 (1,974 ) 1,396 3,370 (1,671 ) 1,699 Permit 10 545 (428 ) 117 545 (373 ) 172 Total $ 4,897 $ (3,059 ) $ 1,838 $ 4,849 $ (2,611 ) $ 2,238
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Year Amount (In thousands) 2017 $ 372 2018 337 2019 254 2020 218 2021 198 $ 1,379

Note 6 - Capital Stock, Stock30

Note 6 - Capital Stock, Stock Plans, Warrants, and Stock Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Stock Options Roll Forward [Table Text Block]	Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (years) Aggregate Intrinsic Value (2) Options outstanding January 1, 2016 218,200 $ 7.65 Granted 62,000 4.09 Exercised ─ ─ Forfeited/expired (33,000 ) 8.14 Options outstanding end of period (1) 247,200 $ 6.69 4.3 $ 20,940 Options exercisable at December 31, 2016 (1) 181,867 $ 7.61 3.7 $ 20,940 Options vested and expected to be vested at December 31, 2016 239,750 $ 6.78 4.3 $ 20,940 Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (years) Aggregate Intrinsic Value (2) Options outstanding January 1, 2015 239,023 $ 7.81 Granted 12,000 4.19 Exercised (3,423 ) 2.79 $ 4,298 Forfeited/expired (29,400 ) 8.13 Options outstanding end of period (1) 218,200 $ 7.65 4.8 $ 14,676 Options exercisable at December 31, 2015 (1) 169,533 $ 8.47 4.5 $ 14,676 Options vested and expected to be vested at December 31, 2015 212,333 $ 7.72 4.8 $ 14,676
Schedule of Nonvested Share Activity [Table Text Block]	Shares Weighted Average Grant-Date Fair Value Non-vested options January 1, 2016 48,667 $ 2.87 Granted 62,000 2.19 Vested (30,334 ) 2.87 Forfeited (15,000 ) 2.88 Non-vested options at December 31, 2016 65,333 $ 2.23
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	Employee Stock Option Granted May 15, 2016 Weighted-average fair value per share $ 2.00 Risk -free interest rate (1) 1.27% Expected volatility of stock (2) 53.12% Dividend yield None Expected option life (3) 6.0 Outside Director Stock Options Granted July 28, 2016 September 17, 2015 Weighted-average fair value per share $ 3.0 $ 2.84 Risk -free interest rate (1) 1.52% 2.21% Expected volatility of stock (2) 55.99% 57.98% Dividend yield None None Expected option life (3) 10.0 10.0
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]	Year Ended 2016 2015 Employee Stock Options $ 53,000 $ 53,000 Director Stock Options 45,000 39,000 Total $ 98,000 $ 92,000

Note 7 - Income (Loss) Per Sh31

Note 7 - Income (Loss) Per Share (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Twelve Months Ended December 31, (Amounts in Thousands, Except for Per Share Amounts) 2016 2015 Net income (loss) attributable to Perma-Fix Environmental Services, Inc., common stockholders: (Loss) income from continuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders $ (12,675 ) $ 814 Loss from discontinuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders (730 ) (1,864 ) Net loss attributable to Perma-Fix Environmental Services, Inc. common stockholders $ (13,405 ) $ (1,050 ) Basic loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders $ (1.15 ) $ (.09 ) Diluted loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders $ (1.15 ) $ (.09 ) Weighted average shares outstanding: Basic weighted average shares outstanding 11,608 11,516 Add: dilutive effect of stock options ─ 6 Add: dilutive effect of warrants ─ 30 Diluted weighted average shares outstanding 11,608 11,552 Potential shares excluded from above weighted average share calcualtions due to their anti-dilutive effect include: Stock options 150 183

Note 9 - Discontinued Operati32

Note 9 - Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Disposal Groups, Including Discontinued Operation Balance Sheet [Table Text Block]	(Amounts in Thousands) December 31, 2016 December 31, 2015 Current assets Other assets $ 85 $ 34 Total current assets 85 34 Long-term assets Property, plant and equipment, net (1) 81 531 Other assets 268 — Total long-term assets 349 531 Total assets $ 434 $ 565 Current liabilities Accounts payable $ 13 $ 85 Accrued expenses and other liabilities 268 437 Environmental liabilities 677 9 Total current liabilities 958 531 Long-term liabilities Closure liabilities 113 173 Environmental liabilities 248 891 Total long-term liabilities 361 1,064 Total liabilities $ 1,319 $ 1,595
Disposal Group, Including Discontinued Operation Income Statement [Table Text Block]	For The Year Ended December 31, Amount in Thousands 2016 2015 Interest expense $ — $ (401 ) Operating loss from discontinued operations (730 ) (1,915 ) Income tax benefit — (51 ) Loss from discontinued operations (730 ) (1,864 )
Disposal Groups, Including Discontinued Operations [Table Text Block]	Current Accrual Long-term Accrual Total PFD $ 75 $ 60 $ 135 PFM — 15 15 PFSG 602 173 775 Total liability $ 677 $ 248 $ 925

Note 10 - Long-term Debt (Table

Note 10 - Long-term Debt (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Long-term Debt Instruments [Table Text Block]	(Amounts in Thousands) December 31, 2016 December 31, 2015 Revolving Credit eligible accounts receivable, subject to monthly borrowing base calculation, balance due March 24, 2021. Effective interest rate for 2016 and 2015 was 3.9% and 4.0%, respectively. (1) (2) $ 3,803 $ 2,349 Term Loan principal of $102, balance due on March 24, 2021. Effective interest rate for 2016 and 2015 was 3.8% and 3.7%, respectively. (1) (2) 5,030 (5) 6,514 (5) Promissory Note only, starting September 1, 2013 followed with twenty-four monthly installments of $125 in principal plus accrued interest (at annual rate of 2.99%). Note paid in full in August 2016. (3) (4) ─ 950 (4) Capital lease ( ─ 23 Total debt 8,833 9,836 Less current portion of long-term debt 1,184 2,431 Long-term debt $ 7,649 $ 7,405
Schedule of Maturities of Long-term Debt [Table Text Block]	Year ending December 31: (In thousands) 2017 $ 1,219 2018 1,219 2019 1,219 2020 1,219 2021 4,108 Total $ 8,984

Note 11 - Accrued Expenses (Tab

Note 11 - Accrued Expenses (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Accrued Liabilities [Table Text Block]	2016 2015 Salaries and employee benefits $ 2,695 $ 2,822 Accrued sales, property and other tax 265 202 Interest payable 6 9 Insurance payable 675 833 Other 453 475 Total accrued expenses $ 4,094 $ 4,341

Note 12 - Accrued Closure Cos35

Note 12 - Accrued Closure Costs and ARO (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Change in Asset Retirement Obligation [Table Text Block]	Amounts in thousands Balance as of December 31, 2014 $ 5,508 Accretion expense 299 Payments (331 ) Adjustment to closure liability (175 ) Balance as of December 31, 2015 5,301 Accretion expense 374 Payments (693 ) Adjustment to closure liability 2,333 Balance as of December 31, 2016 $ 7,315
Schedule of Asset Retirement Obligations [Table Text Block]	Amounts in thousands Balance as of December 31, 2014 $ 2,870 Amortization of closure and post-closure asset (152 ) Adjustment to closure and post-closure asset (143 ) Balance as of December 31, 2015 2,575 Amortization of closure and post-closure asset (760 ) Adjustment to closure and post-closure asset 2,333 Balance as of December 31, 2016 $ 4,148

Note 13 - Income Taxes (Tables)

Note 13 - Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	2016 2015 Federal income tax expense - current $ 9 $ 116 Federal income tax (benefit) expense - deferred (2,657 ) 142 State income tax expense - current 59 9 State income tax (benefit) expense - deferred (405 ) 276 Total income tax (benefit) expense $ (2,994 ) $ 543
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	2016 2015 Deferred tax assets: Net operating losses $ 7,288 $ 4,566 Environmental and closure reserves 3,189 2,497 Other 2,285 2,800 Deferred tax liabilities: Depreciation and amortization (162 ) (1,130 ) Goodwill and indefinite lived intangible assets (2,362 ) (5,443 ) Prepaid expenses (72 ) (122 ) 10,166 3,168 Valuation allowance (12,528 ) (8,592 ) Net deferred income tax liabilities (2,362 ) (5,424 )
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	2016 2015 Tax (benefit) expense at statutory rate $ (5,527 ) $ 166 State tax benefit, net of federal benefit (785 ) (93 ) Change in deferred tax rates (82 ) 208 Permanent items 119 84 Difference in foreign rate 98 40 Change in deferred tax liabilities (260 ) 206 Other (241 ) (124 ) Increase in valuation allowance 3,684 56 Income tax (benefit) expense $ (2,994 ) $ 543

Note 14 - Commitments and Con37

Note 14 - Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	Year ending December 31: 2017 700 2018 178 beyond 2018 ― Total $ 878

Note 17 - Segment Reporting (Ta

Note 17 - Segment Reporting (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Treatment Services Medical Segments Total Corporate (2) Consolidated Total Revenue from external customers $ 32,253 $ 18,966 — $ 51,219 (3) $ — $ 51,219 Intercompany revenues 40 28 — 68 — — Gross profit 4,015 3,069 — 7,084 — 7,084 Research and development 504 38 1,489 2,031 15 2,046 Interest income 3 — — 3 107 110 Interest expense (29 ) (2 ) — (31 ) (458 ) (489 ) Interest expense-financing fees — — — — (108 ) (108 ) Depreciation and amortization 3,451 632 — 4,083 82 4,165 Segment (loss) income before income taxes (10,119 ) (6) 744 (1,489 ) (10,864 ) (5,393 ) (16,257 ) Income tax (benefit) expense (3,013 ) (6) — — (3,013 ) 19 (2,994 ) Segment (loss) income (7,106 ) 744 (1,489 ) (7,851 ) (5,412 ) (13,263 ) Segment assets (1) 32,482 8,105 382 40,969 24,366 (4) 65,335 Expenditures for segment assets 418 17 1 436 — 436 Total debt — — — — 8,833 (5) 8,833 Treatment Services Medical Segments Total Corporate (2) Consolidated Total Revenue from external customers $ 41,318 $ 21,065 — $ 62,383 (3) $ — $ 62,383 Intercompany revenues 113 25 — 138 — — Gross profit 10,910 3,441 — 14,351 — 14,351 Research and development 179 — 2,114 2,293 9 2,302 Interest income 6 — — 6 47 53 Interest expense (38 ) — — (38 ) (451 ) (489 ) Interest expense-financing fees (2 ) — — (2 ) (226 ) (228 ) Depreciation and amortization 2,949 725 — 3,674 43 3,717 Segment income (loss) before income taxes 7,101 1,178 (2,114 ) 6,165 (5,685 ) 480 Income tax expense 538 — — 538 5 543 Segment income (loss) 6,563 1,178 (2,114 ) 5,627 (5,690 ) (63 ) Segment assets (1) 46,307 9,481 1,793 57,581 25,332 (4) 82,913 Expenditures for segment assets 579 33 — 612 11 623 Total debt 23 — — 23 9,813 (5) 9,836
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]	2016 2015 Treatment $ 21,434,000 $ 30,130,000 Services 5,920,000 5,975,000 Total $ 27,354,000 $ 36,105,000

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation (Details Textual)	12 Months Ended
	Dec. 31, 2016
Number of Reportable Segments	3

Note 2 - Summary of Significa40

Note 2 - Summary of Significant Accounting Policies (Details Textual)	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2016USD ($)	Jun. 30, 2016USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Percentage of Reserves for Doubtful Accounts Receivable			100.00%
Contract Receivable Retainage			$ 0	$ 229,000
Tangible Asset Impairment Charges			1,816,000
Depreciation			3,717,000	3,246,000
Research and Development Expense			2,046,000	$ 2,302,000
Decrease in Prepaid and Other Assets [Member] | December 31, 2015 [Member]
Prior Period Reclassification Adjustment			(152,000)
Decrease in Current Portion of Long-term Debt [Member] | December 31, 2015 [Member]
Prior Period Reclassification Adjustment			(27,000)
Decrease in Long-term Debt, Less Current Portion [Member] | December 31, 2015 [Member]
Prior Period Reclassification Adjustment			$ (125,000)
Accounts Receivable [Member] | Customer Concentration Risk [Member]
Number of Major Customers			2	1
Federal Government [Member]
Revenues			$ 27,354,000	$ 36,105,000
Federal Government [Member] | Sales Revenue, Services, Net [Member] | Customer Concentration Risk [Member]
Revenues			$ 27,354,000	$ 36,105,000
Concentration Risk, Percentage			53.40%	57.90%
PSC Metal, Inc. [Member] | Sales Revenue, Services, Net [Member] | Customer Concentration Risk [Member]
Revenues			$ 9,763,000
Concentration Risk, Percentage			19.10%
Number of Major Customers			1
Prologis Teterboro, LLC [Member] | Sales Revenue, Services, Net [Member] | Customer Concentration Risk [Member]
Revenues				$ 10,686,000
Concentration Risk, Percentage				17.10%
Number of Major Customers				1
Customer A [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]
Concentration Risk, Percentage			10.10%	16.20%
Customer B [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]
Concentration Risk, Percentage			20.80%
Medical [Member]
Research and Development Expense			$ 1,489,000	$ 2,114,000
Treatment [Member]
Research and Development Expense			504,000	179,000
Goodwill, Impairment Loss			0	0
Treatment [Member] | Federal Government [Member]
Revenues			$ 21,434,000	30,130,000
PCB Permit [Member]
Number of Definite-lived Permits			1
M&EC [Member]
Property, Plant and Equipment, Useful Life		1 year 219 days
Tangible Asset Impairment Charges	$ 1,816,000	$ 1,816,000
Minimum [Member] | M&EC [Member]
Property, Plant and Equipment, Useful Life		2 years
Maximum [Member] | M&EC [Member]
Property, Plant and Equipment, Useful Life		28 years
Building and Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life			10 years
Building and Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life			40 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life			3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life			7 years
Workers Compensation [Member]
Escrow Deposit				$ 35,000

Note 2 - Summary of Significa41

Note 2 - Summary of Significant Accounting Policies - Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Allowance for doubtful accounts-beginning of year	$ 1,474	$ 2,170
Recovery of bad debt reserves	(314)	(433)
Write-off	(888)	(263)
Allowance for doubtful accounts-end of year	$ 272	$ 1,474

Note 3 - M&EC Facility (Details

Note 3 - M&EC Facility (Details Textual) - USD ($)	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2015
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)			$ 8,288,000
Asset Retirement Obligation, Revision of Estimate			2,333,000	(175,000)
Tangible Asset Impairment Charges			1,816,000
Property, Plant and Equipment, Net			17,115,000	19,993,000
Revenue, Net			51,219,000	62,383,000
Net Property and Equipment [Member]
Asset Retirement Obligation, Revision of Estimate		$ 1,626,000
M&EC [Member]
Tangible Asset Impairment Charges	$ 1,816,000	$ 1,816,000
Property, Plant and Equipment, Useful Life		1 year 219 days
Property, Plant and Equipment, Net	4,728,000	$ 4,728,000
Revenue, Net			$ 4,419,000	$ 6,591,000
M&EC [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life		2 years
M&EC [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life		28 years
M&EC [Member] | Permit [Member]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 8,288,000	$ 8,288,000
Write-off of Fees, Incurred Related to Emission Performance Testing Certification Requirement		$ 587,000

Note 4 - PF Medical (Details Te

Note 4 - PF Medical (Details Textual) - USD ($)	Oct. 11, 2016	Jul. 24, 2015	Dec. 31, 2016
Professional Fees		$ 29,000
Share Purchase Agreement, Company Ownership Percentage Prior to Share Issuance		64.00%
Share Purchase Agreement, Company Ownership Percentage Post Share Issuance		60.50%
Private Investor [Member]
Letter of Intent Agreement, Purchase of Preferred Stock, Amount	$ 10,000,000
Letter of Intent Agreement, Purchase of Preferred Stock, Per Share	$ 8
Letter of Intent Agreement, Percentage of Voting Rights to be Owned Upon Closing	48.60%
PF Medical [Member]
Letter of Intent Agreement, Due from Affiliate After Closing, Amount	$ 500,000
Letter of Intent Agreement, Due from Affiliate After Closing, Payback Period	30 days
Letter of Intent Agreement, Remaining Balance			$ 1,962,000
Letter of Intent Agreement, Affiliate Balance After Closing, Payback Period	120 days
Preferred Stock Issued Upon Initial Closing [Member] | Private Investor [Member]
Letter of Intent Agreement, Purchase of Preferred Stock, Amount	$ 5,000,000
Preferred Stock Issued Upon Second Closing [Member] | Private Investor [Member]
Letter of Intent Agreement, Purchase of Preferred Stock, Amount	$ 5,000,000
PF Medical SA [Member] | Restricted Series F Stock [Member] | Digirad Agreements [Member]
Share Purchase Agreement, Number of Shares		71,429
Share Purchase Agreement, Aggregate Purchase Price		$ 1,000,000
Share Purchase Agreement, Shares Issued Percentage of Outstanding Shares		5.40%
PFM Corportation [Member] | Private Investor [Member] | Warrants Issued with Letter of Intent Agreement [Member]
Warrant Term	4 years
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right	468,750
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 9
PFM Corportation [Member] | Perma-Fix Environmental Services, Inc. [Member] | Warrants Issued with Letter of Intent Agreement [Member]
Warrant Term	4 years
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right	183,606
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 14

Note 5 - Permit and Other Int44

Note 5 - Permit and Other Intangible Assets (Details Textual)	12 Months Ended
	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Finite-Lived Intangible Assets, Net	$ 1,838,000	$ 2,238,000
Amortization of Intangible Assets	$ 448,000	471,000
Medical [Member]
Number of Permits	0
Services [Member]
Number of Permits	0
PCB Permit [Member]
Number of Definite-lived Permits	1
Finite-Lived Intangible Asset, Useful Life	10 years
Finite-Lived Intangible Assets, Net	$ 117,000	$ 172,000

Note 5 - Permit and Other Int45

Note 5 - Permit and Other Intangible Assets - Changes in the Carrying Amount of Permits (Details) - USD ($)		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015
Intangible assets amortized		$ (448,000)	$ (471,000)
Permit impairment for M&EC subsidiary		(8,288,000)
Permits [Member]
Balance		16,761,000	16,709,000
Intangible assets amortized	[1]	(55,000)	(55,000)
Permit in progress		56,000	107,000
Balance		8,474,000	$ 16,761,000
Permit impairment for M&EC subsidiary		$ (8,288,000)
[1]	Amortization for the one definite-lived permit capitalized in 2009. This limit is being amortized over a ten year period in accordance with its estimated useful life. Net carrying value of this permit was approximately $117,000 and $172,000 as of December 31, 2016 and 2015, respectively.

Note 5 - Permit and Other Int46

Note 5 - Permit and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Gross Carrying Amount	$ 4,897	$ 4,849
Accumulated Amortization	(3,059)	(2,611)
Finite-Lived Intangible Assets, Net	$ 1,838	2,238
Patents [Member]
Finite-Lived Intangible Asset, Useful Life	17 years
Gross Carrying Amount	$ 577	539
Accumulated Amortization	(274)	(203)
Finite-Lived Intangible Assets, Net	$ 303	336
Patents [Member] | Minimum [Member]
Finite-Lived Intangible Asset, Useful Life	3 years
Computer Software, Intangible Asset [Member]
Finite-Lived Intangible Asset, Useful Life	3 years
Gross Carrying Amount	$ 405	395
Accumulated Amortization	(383)	(364)
Finite-Lived Intangible Assets, Net	$ 22	31
Customer Relationships [Member]
Finite-Lived Intangible Asset, Useful Life	12 years
Gross Carrying Amount	$ 3,370	3,370
Accumulated Amortization	(1,974)	(1,671)
Finite-Lived Intangible Assets, Net	$ 1,396	1,699
Permits [Member]
Finite-Lived Intangible Asset, Useful Life	10 years
Gross Carrying Amount	$ 545	545
Accumulated Amortization	(428)	(373)
Finite-Lived Intangible Assets, Net	$ 117	$ 172

Note 5 - Permit and Other Int47

Note 5 - Permit and Other Intangible Assets - Summary of Expected Amortization Over the Next Five Years (Details) $ in Thousands	Dec. 31, 2016USD ($)
2,017	$ 372
2,018	337
2,019	254
2,020	218
2,021	198
	$ 1,379

Note 6 - Capital Stock, Stock48

Note 6 - Capital Stock, Stock Plans, Warrants, and Stock Based Compensation (Details Textual) - USD ($)		Aug. 02, 2016	Jul. 28, 2016	May 15, 2016	Sep. 17, 2015	Apr. 28, 2010	Jul. 29, 2003	Dec. 31, 2016	Dec. 31, 2015	Aug. 02, 2013	May 31, 2008
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	[1]							3 years 255 days	4 years 182 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period									3,423
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price								$ 4.09	$ 4.19
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit								2.79
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit								$ 14.75
Allocated Share-based Compensation Expense								$ 98,000	$ 92,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant								247,200
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures								62,000	12,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross								62,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized								$ 74,000
Employee Service Share-based Compensation Nonvested Awards, Total Compensation Cost not yet Recognized in Year Two								43,000
Employee Service Share-based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized in Year Three								30,000
Employee Service Share-based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized In Year Four								$ 1,000
Warrant [Member]
Class of Warrant or Right, Outstanding								0
Robert Freguson and William Lampson Lenders [Member] | Warrant [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		70,000
Class of Warrant or Right, Exercised During Period		2
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 2.23
Due to Related Parties										$ 3,000,000
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	[2]			6 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period								0	0
Allocated Share-based Compensation Expense								$ 53,000	$ 53,000
Employee Stock Option [Member] | Contractual Term with One-third Yearly Vesting [Member]
Share-based Compensation Maximum Contractual Term								6 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period								3 years
Director Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	[2]		10 years		10 years
Allocated Share-based Compensation Expense								$ 45,000	$ 39,000
Share-based Compensation Maximum Contractual Term								10 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period								180 days
The 2003 Outside Directors Stock Plan [Member]
Percentage of Fair Market Value of Common Stock to Determine Number of Shares to Directors							75.00%	75.00%
Stock Issued During Period, Shares, Share-based Compensation, Gross								55,793	71,324
The 2003 Outside Directors Stock Plan [Member] | Portion of Director Fees Earned in Common Stock [Member]
Allocated Share-based Compensation Expense								$ 233,000	$ 269,000
The 2003 Outside Directors Stock Plan [Member] | Minimum [Member]
Share-base Compensation Arrangement by Share-based Payment Award Percentage of Stock in Lieu of Fee Payable							65.00%	65.00%
The 2003 Outside Directors Stock Plan [Member] | Maximum [Member]
Share-base Compensation Arrangement by Share-based Payment Award Percentage of Stock in Lieu of Fee Payable							100.00%	100.00%
The 2003 Outside Directors Stock Plan [Member] | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term							180 days
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period							10 years
The 2003 Outside Directors Stock Plan [Member] | Non-qualified Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period			10 years
Stock Issued During Period, Shares, Share-based Compensation, Gross									3,423
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period									3,423
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price			$ 4.60						$ 2.79
Proceeds from Stock Options Exercised									$ 10,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			180 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			12,000
Third Amendment to 2003 Outside Directors Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized							800,000
Third Amendment to 2003 Outside Directors Stock Plan [Member] | Reduced to [Member]
Share-based Compensation Arrangement by Share-based Payment Award Number of Options Granted Upon Initial Election to Board							6,000
Share-based Compensation Arrangement by Share-based Payment Award Number of Options Granted Upon Re-electionto Board							2,400
The 2010 Stock Option Plan [Member]
Percentage of Fair Market Value of Common Stock to Determine Number of Shares to Directors						110.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized						200,000
The 2010 Stock Option Plan [Member] | Incentive Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term				6 years
Share-based Compensation Arrangement by Share-based Payment Award Stockholder Percentage						10.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term						5 years
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price				$ 3.97
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period				3 years
The 2010 Stock Option Plan [Member] | Incentive Stock Options [Member] | Executive Vice President [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures				50,000
Rights Plan [Member]
Common Stock Ownership Percentage Trigger for Share Rights											20.00%
Share Multiplier for Common Stockholders not Part of Non-board Approved Shareholders											2
Acquired Percentage of the Company that Triggers Share Rights											50.00%
Purchase Price Multiplier for Common Stockholder When Acquired Percentage is Triggered											2
Purchase Price of Rights											$ 13
Purchase Price for Repurchase of Rights											$ 0.001
[1]	Options with exercise prices ranging from $2.79 to $14.75
[2]	The expected option life is based on historical exercises and post-vesting data.

Note 6 - Capital Stock, Stock49

Note 6 - Capital Stock, Stock Plans, Warrants, and Stock Based Compensation - Company's Stock Option Plans (Details) - USD ($)		12 Months Ended
		Dec. 31, 2016		Dec. 31, 2015
Options outstanding, shares (in shares)		218,200	[1]	239,023
Options outstanding, weighted average exercise price (in dollars per share)		$ 7.65	[1]	$ 7.81
Options granted, shares (in shares)		62,000		12,000
Options granted, weighted average exercise price (in dollars per share)		$ 4.09		$ 4.19
Forfeited/expired, shares (in shares)		(33,000)		(29,400)
Forfeited/expired (in dollars per share)		$ 8.14		$ 8.13
Options outstanding, shares (in shares)	[1]	247,200		218,200
Options outstanding, weighted average exercise price (in dollars per share)	[1]	$ 6.69		$ 7.65
Options outstanding, weighted average remaining contractual term (Year)	[1]	4 years 109 days		4 years 292 days
Options outstanding, aggregate intrinsic value	[1],[2]	$ 20,940		$ 14,676
Options exercisable, shares (in shares)	[1]	181,867		169,533
Options exercisable, weighted average exercise price (in dollars per share)	[1]	$ 7.61		$ 8.47
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	[1]	3 years 255 days		4 years 182 days
Options exercisable, aggregate intrinsic value	[1],[2]	$ 20,940		$ 14,676
Options exercisable and expected to be vested, shares (in shares)		239,750		212,333
Options exercisable and expected to be vested, weighted average exercise price (in dollars per share)		$ 6.78		$ 7.72
Options exercisable and expected to be vested, weighted average remaining contractual term (Year)		4 years 109 days		4 years 292 days
Options exercisable and expected to be vested, aggregate intrinsic value		$ 20,940		$ 14,676
Exercised, shares (in shares)				(3,423)
Exercised, weighted average exercise price (in dollars per share)				$ 2.79
Exercised, aggregate intrinsic value	[2]			$ 4,298
Forfeited/expired, shares (in shares)		(33,000)		(29,400)
Forfeited/expired, weighted average exercise price (in dollars per share)		$ 8.14		$ 8.13
[1]	Options with exercise prices ranging from $2.79 to $14.75
[2]	The intrinsic value of a stock option is the amount by which the market value of the underlying stock exceeds the exercise price of the option.

Note 6 - Capital Stock, Stock50

Note 6 - Capital Stock, Stock Plans, Warrants, and Stock Based Compensation - Nonvested Shares (Details)	12 Months Ended
	Dec. 31, 2016$ / sharesshares
Non-vested options January 1, 2016 (in shares) | shares	48,667
Non-vested options January 1, 2016 (in dollars per share) | $ / shares	$ 2.87
Granted (in shares) | shares	62,000
Granted (in dollars per share) | $ / shares	$ 2.19
Vested (in shares) | shares	(30,334)
Vested (in dollars per share) | $ / shares	$ 2.87
Forfeited (in shares) | shares	(15,000)
Forfeited (in dollars per share) | $ / shares	$ 2.88
Non-vested options at December 31, 2016 (in shares) | shares	65,333
Non-vested options at December 31, 2016 (in dollars per share) | $ / shares	$ 2.23

Note 6 - Capital Stock, Stock51

Note 6 - Capital Stock, Stock Plans, Warrants, and Stock Based Compensation - Black-Scholes Valuation Model Assumptions (Details) - $ / shares		Jul. 28, 2016	May 15, 2016	Sep. 17, 2015
Employee Stock Option [Member]
Weighted-average fair value per share (in dollars per share)			$ 2
Risk -free interest rate (1)	[1]		1.27%
Expected volatility of stock (2)	[2]		53.12%
Dividend yield			0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	[3]		6 years
Director Stock Options [Member]
Weighted-average fair value per share (in dollars per share)		$ 3		$ 2.84
Risk -free interest rate (1)	[1]	1.52%		2.21%
Expected volatility of stock (2)	[2]	55.99%		57.98%
Dividend yield		0.00%		0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	[3]	10 years		10 years
[1]	The risk-free interest rate is based on the U.S. Treasury yield in effect at the grant date over the expected term of the option.
[2]	The expected volatility is based on historical volatility from our traded Common Stock over the expected term of the option.
[3]	The expected option life is based on historical exercises and post-vesting data.

Note 6 - Capital Stock, Stock52

Note 6 - Capital Stock, Stock Plans, Warrants, and Stock Based Compensation - Stock-based Compensation Recognized (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Allocated stock-based compensation	$ 98,000	$ 92,000
Employee Stock Option [Member]
Allocated stock-based compensation	53,000	53,000
Director Stock Options [Member]
Allocated stock-based compensation	$ 45,000	$ 39,000

Note 7 - Income (Loss) Per Sh53

Note 7 - Income (Loss) Per Share - Basic and Diluted Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
(Loss) income from continuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders	$ (12,675)	$ 814
Loss from discontinuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders	(730)	(1,864)
Net loss attributable to Perma-Fix Environmental Services, Inc. common stockholders	$ (13,405)	$ (1,050)
Basic loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders (in dollars per share)	$ (1.15)	$ (0.09)
Diluted loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders (in dollars per share)	$ (1.15)	$ (0.09)
Basic weighted average shares outstanding (in shares)	11,608	11,516
Add: dilutive effect of stock options (in shares)		6
Add: dilutive effect of warrants (in shares)		30
Diluted weighted average shares outstanding (in shares)	11,608	11,552
Stock options (in shares)	150	183

Note 8 - Preferred Stock Issu54

Note 8 - Preferred Stock Issuance and Conversion (Details Textual) - Series B Preferred Stock [Member] - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008	Dec. 31, 2007	Dec. 31, 2006	Dec. 31, 2005	Dec. 31, 2004	Dec. 31, 2003
Preferred Stock, Liquidation Preference Per Share	$ 1
Preferred Stock of Subsidiary Redeemable Price per Share	$ 1
Preferred Stock, Dividend Rate, Percentage	5.00%
Preferred Stock of Subsidiary per Share Amount on Which Dividend Rate Applied	$ 1
Dividends Payable	$ 931,000
Other Noncurrent Liabilities [Member]
Preferred Stock of Subsidiary Accrued Dividends	$ 64,000	$ 64,000	$ 64,000	$ 64,000	$ 64,000	$ 64,000	$ 64,000	$ 64,000	$ 64,000	$ 64,000	$ 64,000	$ 64,000	$ 64,000	$ 64,000

Note 9 - Discontinued Operati55

Note 9 - Discontinued Operations (Details Textual)	May 02, 2016USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Number of Previously Shut Down Locations		2
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment		$ 53,323,000	$ 49,707,000
Number of Remediation Projects		3
Accrual for Environmental Loss Contingencies		$ 925,000	900,000
Accrued Environmental Loss Contingencies, Current		677,000
Accrual for Environmental Loss Contingencies, Period Increase (Decrease)		25,000
Not Held for Sale [Member]
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment			10,000
PFMI [Member]
Disposal Group, Including Discontinued Operation, Consideration	$ 450,000
Disposal Group, Including Discontinued Operation, Consideration, At Closing, Gross	75,000
Disposal Group, Including Discontinued Operation, Consideration, At Closing, Net	46,000
Disposal Group, Including Discontinued Operation, Consideration, After Closing	$ 375,000
Disposal Group, Including Discontinued Operation, Consideration, Number of Monthly Installment Payments	60
Disposal Group, Including Discontinued Operation, Consideration, Installment Payment	$ 7,250
Disposal Group, Including Discontinued Operation, Consideration, Remaining Balance		337,000
PFMI [Member] | Loss Income from Discontinued Operations, Net of Taxes [Member]
Asset Impairment Charges			150,000
PFMI [Member] | Current Assets Related to Discontinued Operations [Member]
Disposal Group, Including Discontinued Operation, Consideration, Remaining Balance		69,000
PFMI [Member] | Other Assets Related to Discontinued Operations [Member]
Disposal Group, Including Discontinued Operation, Consideration, Remaining Balance		268,000
PFSG [Member]
Payment Resulting from Consent Order			201,000
PFSG [Member] | Arbitration with Contractor [Member]
Loss Contingency, Loss in Period			407,000
PFSG [Member] | Interest Expense [Member] | Arbitration with Contractor [Member]
Loss Contingency, Loss in Period			$ 400,000
PFSG and PFM [Member]
Accrual for Environmental Loss Contingencies, Period Increase (Decrease)		$ 66,000

Note 9 - Discontinued Operati56

Note 9 - Discontinued Operations - Discontinued Operations Balance Sheet (Details) - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Other assets		$ 85	$ 34
Total current assets		85	34
Property, plant and equipment, net	[1]	81	531
Other assets		268
Total long-term assets		349	531
Total assets		434	565
Accounts payable		13	85
Accrued expenses and other liabilities		268	437
Environmental liabilities		677	9
Total current liabilities		958	531
Closure liabilities		113	173
Environmental liabilities		248	891
Total long-term liabilities		361	1,064
Total liabilities		$ 1,319	$ 1,595
[1]	net of accumulated depreciation of $10,000 for each period presented.

Note 9 - Discontinued Operati57

Note 9 - Discontinued Operations - Discontinued Operations Income Statement (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Interest expense		$ (401)
Operating loss from discontinued operations	(730)	(1,915)
Income tax benefit		(51)
Less: loss on discontinued operations, net of taxes (Note 9)	$ (730)	$ (1,864)

Note 9 - Discontinued Operati58

Note 9 - Discontinued Operations - Current and Long-term Accrued Environmental Liabilities (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Current Accual	$ 677,000
Long-term Accrual	248,000
Total	925,000	$ 900,000
PFD [Member]
Current Accual	75,000
Long-term Accrual	60,000
Total	135,000
PFM [Member]
Current Accual
Long-term Accrual	15,000
Total	15,000
PFSG [Member]
Current Accual	602,000
Long-term Accrual	173,000
Total	$ 775,000

Note 10 - Long-term Debt (Detai

Note 10 - Long-term Debt (Details Textual)

Nov. 17, 2016USD ($)

Aug. 02, 2016USD ($)shares

Mar. 24, 2016USD ($)

Aug. 02, 2013USD ($)$ / sharesshares

Oct. 31, 2011USD ($)

Dec. 31, 2016USD ($)

Mar. 31, 2016USD ($)

Dec. 31, 2016USD ($)

Dec. 31, 2015USD ($)

Nov. 16, 2016USD ($)

Aug. 22, 2016USD ($)

Aug. 21, 2016USD ($)

May 23, 2016USD ($)

Jul. 28, 2014USD ($)

Debt Instrument, Annual Spending Limit for Capital Spending

$ 3,000,000

$ 6,000,000

Payments of Debt Issuance Costs

$ 122,000

$ 40,000

Lenders [Member]

Class of Warrant or Right, Exercised During Period | shares

35,000

Proceeds from Warrant Exercises

$ 156,000

Term Loan [Member]

Debt Instrument, Periodic Payment, Principal

102,000

102,000

Long-term Debt

[1],[2],[3]

$ 5,030,000

5,030,000

6,514,000

Promissory Note Dated August 2, 2013 [Member]

Debt Instrument, Periodic Payment, Principal

125,000

125,000

Long-term Debt

[4],[5]

950,000

Promissory Note Dated August 2, 2013 [Member] | Lenders [Member]

Proceeds from Issuance of Long-term Debt

$ 3,000,000

Number of Shares Issued to Each Lender on Warrant | shares

35,000

Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares

$ 2.23

Number of Shares Received by each Lender | shares

45,000

PNC Bank [Member] | Revolving Credit Facility [Member]

Line of Credit Facility Reduction

1,250,000

1,250,000

Line of Credit Facility, Current Borrowing Capacity

1,748,000

1,748,000

Revised Loan Agreement [Member] | PNC Bank [Member]

Payments of Debt Issuance Costs

$ 72,000

Debt Instrument, Termination Notice

90 days

Debt Instrument, Covenant, Fixed Charge Coverage Ratio

1.15

Debt Instrument, Fee Amount

$ 25,000

Debt Instrument, Covenant Compliance, Minimum Tangible Adjusted Net Worth

$ 26,000,000

$ 30,000,000

Revised Loan Agreement [Member] | PNC Bank [Member] | On or Before March 23, 2017 [Member]

Debt Instrument Percentage of Total Finacing to be Paid Upon Early Retirement of Debt Obligations

1.00%

Revised Loan Agreement [Member] | PNC Bank [Member] | After March 23, 2017 But Prior to or on March 23, 2018 [Member]

Debt Instrument Percentage of Total Finacing to be Paid Upon Early Retirement of Debt Obligations

0.50%

Revised Loan Agreement [Member] | PNC Bank [Member] | After March 23, 2018 But Prior to or on March 23, 2019 [Member]

Debt Instrument Percentage of Total Finacing to be Paid Upon Early Retirement of Debt Obligations

0.25%

Revised Loan Agreement [Member] | PNC Bank [Member] | After March 23, 2019 [Member]

Debt Instrument Percentage of Total Finacing to be Paid Upon Early Retirement of Debt Obligations

0.00%

Revised Loan Agreement [Member] | PNC Bank [Member] | Interest Expense [Member]

Gain (Loss) on Extinguishment of Debt

$ (68,000)

Revised Loan Agreement [Member] | PNC Bank [Member] | Selling, General and Administrative Expenses [Member]

Debt Instrument, Fee Amount

$ 5,000

Revised Loan Agreement [Member] | PNC Bank [Member] | Revolving Credit Facility [Member]

Line of Credit Facility, Maximum Borrowing Capacity

$ 12,000,000

Release of Borrowing Reduction on Line of Credit

$ 1,000,000

Revised Loan Agreement [Member] | PNC Bank [Member] | Revolving Credit Facility [Member] | Prime Rate [Member]

Debt Instrument, Basis Spread on Variable Rate

1.75%

Revised Loan Agreement [Member] | PNC Bank [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]

Debt Instrument, Basis Spread on Variable Rate

2.75%

Revised Loan Agreement [Member] | PNC Bank [Member] | Term Loan [Member]

Debt Instrument, Periodic Payment, Principal

$ 101,600

$ 190,000

Long-term Debt

$ 6,100,000

Debt Instrument, Term

5 years

Revised Loan Agreement [Member] | PNC Bank [Member] | Term Loan [Member] | Prime Rate [Member]

Debt Instrument, Basis Spread on Variable Rate

2.25%

3.75%

Revised Loan Agreement [Member] | PNC Bank [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]

Debt Instrument, Basis Spread on Variable Rate

3.25%

Promissory Note Dated August 2, 2013 [Member]

Debt Instrument, Unamortized Discount

0

$ 0

50,000

Term Loan [Member]

Debt Issuance Costs, Net

151,000

$ 151,000

$ 152,000

Amended Loan Agreement [Member] | PNC Bank [Member] | Revolving Credit Facility [Member]

Line of Credit Facility, Maximum Borrowing Capacity

$ 12,000,000

Amended Loan Agreement [Member] | PNC Bank [Member] | Revolving Credit Facility [Member] | Prime Rate [Member]

Debt Instrument, Basis Spread on Variable Rate

2.00%

Amended Loan Agreement [Member] | PNC Bank [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]

Debt Instrument, Basis Spread on Variable Rate

3.00%

Amended Loan Agreement [Member] | PNC Bank [Member] | Term Loan [Member] | Prime Rate [Member]

Debt Instrument, Basis Spread on Variable Rate

2.50%

Amended Loan Agreement [Member] | PNC Bank [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]

Debt Instrument, Basis Spread on Variable Rate

3.50%

Amendment 4 [Member] | PNC Bank [Member] | Term Loan [Member]

Debt Instrument, Periodic Payment, Principal

$ 190,000

Long-term Debt

$ 16,000,000

Debt Instrument, Term

7 years

Amendment 6 [Member] | PNC Bank [Member] | Revolving Credit Facility [Member]

Line of Credit Facility Reduction

$ 1,500,000

Amendment to the Revised Loan Agreement [Member] | PNC Bank [Member]

Line of Credit Facility Reduction

$ 2,000,000

$ 500,000

Debt Instrument, Covenant, Fixed Charge Coverage Ratio

1.15

Debt Instrument, Fee Amount

25,000

Line of Credit Facility Reduction, Additional Reduction

$ 750,000

$ 750,000

Amendment to the Revised Loan Agreement [Member] | PNC Bank [Member] | Revolving Credit Facility [Member] | Prime Rate [Member]

Debt Instrument, Basis Spread on Variable Rate

2.00%

Amendment to the Revised Loan Agreement [Member] | PNC Bank [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]

Debt Instrument, Basis Spread on Variable Rate

3.00%

Amendment to the Revised Loan Agreement [Member] | PNC Bank [Member] | Term Loan [Member] | Prime Rate [Member]

Debt Instrument, Basis Spread on Variable Rate

2.50%

Amendment to the Revised Loan Agreement [Member] | PNC Bank [Member] | Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]

Debt Instrument, Basis Spread on Variable Rate

3.50%

[1]

Net of debt issuance costs of ($151,000) and ($152,000) at December 31, 2016 and December 31, 2015, respectively.

[2]

Our revolving credit facility is collateralized by our accounts receivable and our term loan is collateralized by our property, plant, and equipment.

[3]

See below "Revolving Credit and Term Loan Agreement" for monthly payment interest options. Prior to April 1, 2016, the monthly installment payment under the term loan was approximately $190,000.

[4]

Net of debt discount of ($50,000) at December 31, 2015. See "Promissory Notes" below for additional information.

[5]

Uncollateralized note.

Note 10 - Long-term Debt - Long

Note 10 - Long-term Debt - Long-term Debt Instruments (Details) - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Long-term debt		$ 8,833	$ 9,836
Less current portion of long-term debt		1,184	2,431
Long-term debt		7,649	7,405
Revolving Credit [Member]
Long-term Debt	[1],[2]	3,803	2,349
Term Loan [Member]
Long-term Debt	[1],[2],[3]	5,030	6,514
Promissory Note Dated August 2, 2013 [Member]
Long-term Debt	[4],[5]		950
Capital Lease Obligations [Member]
Capital lease			$ 23
[1]	Our revolving credit facility is collateralized by our accounts receivable and our term loan is collateralized by our property, plant, and equipment.
[2]	See below "Revolving Credit and Term Loan Agreement" for monthly payment interest options. Prior to April 1, 2016, the monthly installment payment under the term loan was approximately $190,000.
[3]	Net of debt issuance costs of ($151,000) and ($152,000) at December 31, 2016 and December 31, 2015, respectively.
[4]	Net of debt discount of ($50,000) at December 31, 2015. See "Promissory Notes" below for additional information.
[5]	Uncollateralized note.

Note 10 - Long-term Debt - Lo61

Note 10 - Long-term Debt - Long-term Debt Instruments (Details) (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Revolving Credit [Member]
Effective interest rate	3.90%	4.00%
Term Loan [Member]
Effective interest rate	3.80%	3.70%
Debt instrument, periodic payment, principal	$ 102	$ 102
Promissory Note Dated August 2, 2013 [Member]
Effective interest rate	2.99%	2.99%
Debt instrument, periodic payment, principal	$ 125	$ 125
Capital Lease Obligations [Member]
Effective interest rate	6.00%	6.00%

Note 10 - Long-term Debt - Matu

Note 10 - Long-term Debt - Maturities of Long-term Debt Maturing in Future Years (Details) $ in Thousands	Dec. 31, 2016USD ($)
2,017	$ 1,219
2,018	1,219
2,019	1,219
2,020	1,219
2,021	4,108
Total	$ 8,984

Note 11 - Accrued Expenses (Det

Note 11 - Accrued Expenses (Details Textual) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Management Incentive Plans [Member]
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount	$ 214,000	$ 214,000

Note 11 - Accrued Expenses - Su

Note 11 - Accrued Expenses - Summary of Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Salaries and employee benefits	$ 2,695	$ 2,822
Accrued sales, property and other tax	265	202
Interest payable	6	9
Insurance payable	675	833
Other	453	475
Total accrued expenses	$ 4,094	$ 4,341

Note 12 - Accrued Closure Cos65

Note 12 - Accrued Closure Costs and ARO (Details Textual) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Asset Retirement Obligation, Revision of Estimate		$ 2,333,000	$ (175,000)
Asset Retirement Obligation, Liabilities Settled		693,000	331,000
Asset Retirement Obligation		7,315,000	5,301,000	$ 5,508,000
Perma-Fix Northwest Richland, Inc [Member]
Asset Retirement Obligation, Revision of Estimate		707,000	175,000
Asset Retirement Obligation, Liabilities Settled		410,000	$ 331,000
M&EC [Member]
Asset Retirement Obligation, Liabilities Settled		283,000
Asset Retirement Obligation		3,058,000
Asset Retirement Obligation, Current		$ 2,177,000
Net Property and Equipment [Member]
Asset Retirement Obligation, Revision of Estimate	$ 1,626,000

Note 12 - Accrued Closure Cos66

Note 12 - Accrued Closure Costs and ARO - Reported Closure Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Balance	$ 5,301	$ 5,508
Accretion expense	374	299
Payments	(693)	(331)
Asset Retirement Obligation, Revision of Estimate	2,333	(175)
Balance	$ 7,315	$ 5,301

Note 12 - Accrued Closure Cos67

Note 12 - Accrued Closure Costs and ARO - Reported Closure Asset (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Balance	$ 2,575	$ 2,870
Amortization of closure and post-closure asset	(760)	(152)
Adjustment to closure and post-closure asset	2,333	(143)
Balance	$ 4,148	$ 2,575

Note 13 - Income Taxes (Details

Note 13 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Effective Income Tax Rate Reconciliation, Percent	34.00%
Deferred Tax Assets, Valuation Allowance	$ 12,528,000	$ 8,592,000
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	3,684,000	56,000
Accrued Income Taxes	0	$ 32,000
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards	10,372,000
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member] | PF Medical [Member]
Operating Loss Carryforwards	3,259,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	65,658,000
State and Local Jurisdiction [Member] | PF Medical [Member]
Operating Loss Carryforwards	$ 4,179,000

Note 13 - Income Taxes - Compon

Note 13 - Income Taxes - Components of Current and Deferred Federal and State Income Tax (Benefit) Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Federal income tax expense - current	$ 9	$ 116
Federal income tax (benefit) expense - deferred	(2,657)	142
State income tax expense - current	59	9
State income tax (benefit) expense - deferred	(405)	276
Income Tax Expense (Benefit)	$ (2,994)	$ 543

Note 13 - Income Taxes - Deferr

Note 13 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Net operating losses	$ 7,288,000	$ 4,566,000
Environmental and closure reserves	3,189,000	2,497,000
Other	2,285,000	2,800,000
Depreciation and amortization	(162,000)	(1,130,000)
Goodwill and indefinite lived intangible assets	(2,362,000)	(5,443,000)
Prepaid expenses	(72,000)	(122,000)
	10,166,000	3,168,000
Valuation allowance	(12,528,000)	(8,592,000)
Net deferred income tax liabilities	$ (2,362,000)	$ (5,424,000)

Note 13 - Income Taxes - Income

Note 13 - Income Taxes - Income Tax Expense (Benefit) Reconciliation (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Tax (benefit) expense at statutory rate	$ (5,527,000)	$ 166,000
State tax benefit, net of federal benefit	(785,000)	(93,000)
Change in deferred tax rates	(82,000)	208,000
Permanent items	119,000	84,000
Difference in foreign rate	98,000	40,000
Change in deferred tax liabilities	(260,000)	206,000
Other	(241,000)	(124,000)
Increase in valuation allowance	3,684,000	56,000
Income tax (benefit) expense	$ (2,994,000)	$ 543,000

Note 14 - Commitments and Con72

Note 14 - Commitments and Contingencies (Details Textual) - USD ($)	Aug. 31, 2007	Jun. 30, 2003	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016
Bonds and Letters of Credit Outstanding Amount			$ 1,514,000
Operating Leases, Rent Expense, Net			1,027,000	$ 976,000
Non-Cancelable Operating Leases [Member]
Operating Leases, Rent Expense			735,000	659,000
American International Group, Inc [Member]
Period of Finite Risk Insurance Policy		25 years
Maximum Allowable Coverage of Insurance Policy			39,000,000		$ 39,000,000
Financial Assurance Coverage, Amount of Reduction During Period			9,711,000
Financial Assurance Coverage Amount under Insurance Policy			29,163,000		29,163,000
Sinking Fund Related to Insurance Policy			15,546,000	15,460,000	15,546,000
Interest Earned on Sinking Fund			1,075,000	989,000	$ 1,075,000
Interest Income, Other			$ 86,000	31,000
Insurers Obligation to Entity on Termination of Contract			100.00%		100.00%
American International Group, Inc [Member] | Perma-Fix Northwest Richland, Inc [Member]
Financial Assurance Coverage Amount under Insurance Policy			$ 7,973,000		$ 7,973,000
Interest Income, Other			21,000	15,000
Financial Assurance Coverage Amount under Second Insurance Policy	$ 7,800,000
Annual Growth Rate of Financial Assurance Coverage Amount Under Second Insurance Policy	1.50%
Maximum Financial Assurance Coverage Amount Under Second Insurance Policy	$ 8,200,000
Sinking Fund Related to Second Insurance Policy			5,941,000	5,920,000	5,941,000
Interest Earned on Sinking Fund under Second Insurance Policy			$ 241,000	$ 220,000	241,000
Period of Finite Second Insurance Policy			4 years
Release of the Sinking Fund Related to Second the Insurance Policy			$ 5,941,000
Net Proceeds from the Release of the Sinking Fund Related to the Second Insurance Policy			3,441,000
American International Group, Inc [Member] | Perma-Fix Northwest Richland, Inc [Member] | Credit Facility Secured by a Bond [Member]
Financial Assurance Coverage Amount Under a Bond			7,000,000		7,000,000
Debt Instrument, Collateral Amount			$ 2,500,000		2,500,000
American International Group, Inc [Member] | Perma-Fix Northwest Richland, Inc [Member] | Minimum [Member]
Renewal Fee for Additional Year under Second Insurance Policy					41,000
American International Group, Inc [Member] | Perma-Fix Northwest Richland, Inc [Member] | Maximum [Member]
Renewal Fee for Additional Year under Second Insurance Policy					$ 46,000

Note 14 - Commitments and Con73

Note 14 - Commitments and Contingencies - Operating Leases (Details) $ in Thousands	Dec. 31, 2016USD ($)
2,017	$ 700
2,018	178
beyond 2,018
Total	$ 878

Note 15 - Profit Sharing Plan (

Note 15 - Profit Sharing Plan (Details Textual)	12 Months Ended
	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Minimum Age for Full Time Employees to Participate In Plan	18
Number of Quarterly Open Periods for Enrollment	4
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	100.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	25.00%
Defined Contribution Plan Employers Contribution Vesting Period	5 years
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 307,000	$ 303,000

Note 16 - Related Party Trans75

Note 16 - Related Party Transactions (Details Textual) - USD ($)	Jun. 02, 2015	Jul. 10, 2014	Sep. 30, 2014	Dec. 31, 2016	Dec. 31, 2015	Aug. 02, 2013
Mr David Centofanti [Member] | Director of Information Services [Member]
Compensation				$ 168,000	$ 168,000
Mr Robert L Ferguson [Member] | Advisory Services [Member]
Monthly Consulting Fees				4,000
Related Party Transaction, Amounts of Transaction				$ 59,000	58,000
Robert Freguson and William Lampson Lenders [Member]
Notes Payable, Related Parties						$ 3,000,000
Mr. Climaco [Member] | Monthly Consulting Fee [Member]
Monthly Consulting Fees			$ 22,000
Mr. Climaco [Member] | Executive Vice President of PF Medical [Member]
Compensation	$ 150,000
Mr. Climaco [Member] | Consultant [Member]
Related Party Transaction, Amounts of Transaction					$ 117,000
Dr. Louis F. Centofanti [Member] | President [Member]
Employment Agreement Term		3 years
Mr. Ben Naccarato [Member] | Chief Financial Officer [Member]
Employment Agreement Term		3 years

Note 17 - Segment Reporting (De

Note 17 - Segment Reporting (Details Textual) - USD ($)	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2015
Number of Reportable Segments			3
Revenue, Net			$ 51,219,000	$ 62,383,000
Assets of Disposal Group Including Discontinued Operation Including Not Held for Sale			434,000	565,000
Tangible Asset Impairment Charges			1,816,000
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)			8,288,000
Income Tax Expense (Benefit)			(2,994,000)	543,000
M&EC [Member]
Revenue, Net			4,419,000	6,591,000
Tangible Asset Impairment Charges	$ 1,816,000	$ 1,816,000
Income Tax Expense (Benefit)		(3,203,000)
M&EC [Member] | Permit [Member]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 8,288,000	$ 8,288,000
Promissory Note Dated August 2, 2013 [Member]
Debt Instrument, Unamortized Discount			0	50,000
Term Loan [Member]
Debt Issuance Costs, Net			151,000	152,000
Credit Concentration Risk [Member] | Sales Revenue, Services, Net [Member] | Federal Government [Member]
Revenue, Net			$ 27,354,000	$ 36,105,000
Concentration Risk, Percentage			53.40%	57.90%

Note 17 - Segment Reporting - S

Note 17 - Segment Reporting - Segment Financial Information (Details) - USD ($)		12 Months Ended
		Dec. 31, 2016		Dec. 31, 2015
Revenue, Net		$ 51,219,000		$ 62,383,000
Intercompany revenues
Gross profit		7,084,000		14,351,000
Research and Development Expense		2,046,000		2,302,000
Interest income		110,000		53,000
Interest expense		(489,000)		(489,000)
Interest expense-financing fees		(108,000)		(228,000)
Depreciation and amortization		4,165,000		3,717,000
Segment (loss) income before income taxes		(16,257,000)		480,000
Income Tax Expense (Benefit)		(2,994,000)		543,000
Loss from continuing operations		(13,263,000)		(63,000)
Segment assets(1)	[1]	65,335,000		82,913,000
Expenditures for segment assets		436,000		623,000
Total debt		8,833,000		9,836,000
Treatment [Member]
Revenue, Net		32,253,000		41,318,000
Intercompany revenues		40,000		113,000
Gross profit		4,015,000		10,910,000
Research and Development Expense		504,000		179,000
Interest income		3,000		6,000
Interest expense		(29,000)		(38,000)
Interest expense-financing fees				(2,000)
Depreciation and amortization		3,451,000		2,949,000
Segment (loss) income before income taxes		(10,119,000)	[2]	7,101,000
Income Tax Expense (Benefit)		(3,013,000)	[2]	538,000
Loss from continuing operations		(7,106,000)		6,563,000
Segment assets(1)	[1]	32,482,000		46,307,000
Expenditures for segment assets		418,000		579,000
Total debt				23,000
Services [Member]
Revenue, Net		18,966,000		21,065,000
Intercompany revenues		28,000		25,000
Gross profit		3,069,000		3,441,000
Research and Development Expense		38,000
Interest income
Interest expense		(2,000)
Interest expense-financing fees
Depreciation and amortization		632,000		725,000
Segment (loss) income before income taxes		744,000		1,178,000
Income Tax Expense (Benefit)
Loss from continuing operations		744,000		1,178,000
Segment assets(1)	[1]	8,105,000		9,481,000
Expenditures for segment assets		17,000		33,000
Total debt
Medical [Member]
Revenue, Net
Intercompany revenues
Gross profit
Research and Development Expense		1,489,000		2,114,000
Interest income
Interest expense
Interest expense-financing fees
Depreciation and amortization
Segment (loss) income before income taxes		(1,489,000)		(2,114,000)
Income Tax Expense (Benefit)
Loss from continuing operations		(1,489,000)		(2,114,000)
Segment assets(1)	[1]	382,000		1,793,000
Expenditures for segment assets		1,000
Total debt
Segments Total [Member]
Revenue, Net	[3]	51,219,000		62,383,000
Intercompany revenues		68,000		138,000
Gross profit		7,084,000		14,351,000
Research and Development Expense		2,031,000		2,293,000
Interest income		3,000		6,000
Interest expense		(31,000)		(38,000)
Interest expense-financing fees				(2,000)
Depreciation and amortization		4,083,000		3,674,000
Segment (loss) income before income taxes		(10,864,000)		6,165,000
Income Tax Expense (Benefit)		(3,013,000)		538,000
Loss from continuing operations		(7,851,000)		5,627,000
Segment assets(1)	[1]	40,969,000		57,581,000
Expenditures for segment assets		436,000		612,000
Total debt				23,000
Corporate and Other [Member]
Revenue, Net	[4]
Intercompany revenues	[4]
Gross profit	[4]
Research and Development Expense	[4]	15,000		9,000
Interest income	[4]	107,000		47,000
Interest expense	[4]	(458,000)		(451,000)
Interest expense-financing fees	[4]	(108,000)		(226,000)
Depreciation and amortization	[4]	82,000		43,000
Segment (loss) income before income taxes	[4]	(5,393,000)		(5,685,000)
Income Tax Expense (Benefit)		19,000		5,000	[4]
Loss from continuing operations		(5,412,000)		(5,690,000)	[4]
Segment assets(1)	[1],[5]	24,366,000		25,332,000
Expenditures for segment assets	[4]			11,000
Total debt	[4],[6]	$ 8,833,000		$ 9,813,000
[1]	Segment assets have been adjusted for intercompany accounts to reflect actual assets for each segment.
[2]	Amounts include tangible and intangible asset impairment losses of $1,816,000 and $8,288,000, respectively for the Company's M&EC subsidiary recorded in the second quarter of 2016 (see "Note 3 - M&EC Facility"). Also includes a tax benefit of approximately $3,203,000 recorded resulting from the intangible impairment loss recorded for our M&EC subsidiary.
[3]	The Company performed services relating to waste generated by the federal government, either directly as a prime contractor or indirectly for others as a subcontractor to the federal government, representing approximately $27,354,000 or 53.4% of total revenue from continuing operations during 2016 and $36,105,000 or 57.9% of total revenue from continuing operations during 2015. The following reflects such revenue generated by our two segments: 2016 2015 Treatment $ 21,434,000 $ 30,130,000 Services 5,920,000 5,975,000 Total $ 27,354,000 $ 36,105,000
[4]	Amounts reflect the activity for corporate headquarters not included in the segment information.
[5]	Amount includes assets from our discontinued operations of $434,000 and $565,000, as of December 31, 2016 and 2015, respectively.
[6]	Net of debt discount of ($0) and ($50,000) for 2016 and 2015, respectively, and net of debt issuance costs of ($151,000) and ($152,000) for 2016 and 2015, respectively (see "Note 10 - "Long-Term Debt" for additional information).

Note 17 - Segment Reporting -78

Note 17 - Segment Reporting - Segment Revenue by Customer (Details) - Federal Government [Member] - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Revenues	$ 27,354,000	$ 36,105,000
Treatment [Member]
Revenues	21,434,000	30,130,000
Services [Member]
Revenues	$ 5,920,000	$ 5,975,000

Note 18 - Subsequent Events (De

Note 18 - Subsequent Events (Details Textual) - Subsequent Event [Member]	Jan. 19, 2017USD ($)
Chief Operating Officer [Member]
Employment Agreement Term	3 years
Annual Salary for Executive Vice President	$ 267,000
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Minimum, Percentage	5.00%
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Maximum, Percentage	100.00%
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Minimum, Amount	$ 13,350
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Maximum, Amount	$ 267,000
Chief Executive Officer [Member]
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Minimum, Percentage	5.00%
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Maximum, Percentage	100.00%
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Minimum, Amount	$ 13,962
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Maximum, Amount	$ 279,248
Chief Financial Officer [Member]
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Minimum, Percentage	5.00%
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Maximum, Percentage	100.00%
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Minimum, Amount	$ 11,033
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Maximum, Amount	$ 220,667