| Operating Segments | 
   
In
accordance with ASC 280, “Segment Reporting”, the Company defines an operating segment as a business activity: (1)
from which we may earn revenue and incur expenses; (2) 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 (3)
for which discrete financial information is available. 
  
Our
reporting segments are defined as below: 
  
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 three uniquely licensed and permitted treatment and storage
    facilities; and  | 
 
    |   | 
    - | 
    R&D
    activities to identify, develop and implement innovative waste processing techniques for problematic waste streams. | 
 
 
  
SERVICES
SEGMENT, which includes: 
  
    |   | 
    - | 
    Technical
    services, which include: | 
 
 
  
    |   | 
    ○ | 
    professional
    radiological measurement and site survey of large government and commercial installations using advanced methods, technology
    and engineering; | 
 
    |   | 
     | 
    integrated
    Occupational Safety and Health services including 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 OSHA citation assistance; | 
 
    |   | 
    ○ | 
    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; and | 
 
    |   | 
    ○ | 
    on-site
    waste management services to commercial and governmental customers. | 
 
 
  
    |   | 
    - | 
    Nuclear
    services, which include: | 
 
 
  
    |   | 
    ○ | 
    technology-based
    services including engineering, decontamination and decommissioning (“D&D”), specialty services and construction,
    logistics, transportation, processing and disposal; | 
 
    |   | 
    ○ | 
    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; logistics; transportation; and emergency response; and | 
 
 
  
    |   | 
    - | 
    A
    company owned equipment calibration and maintenance laboratory that services, maintains, calibrates, and sources (i.e., rental)
    health physics, IH and customized NIOSH instrumentation. | 
 
    |   | 
    - | 
    A
    company owned gamma spectroscopy laboratory for the analysis of oil and gas industry solids and liquids. | 
 
 
  
MEDICAL
SEGMENT, which includes: Research and Development (“R&D”) of the Company’s 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” or the Medical Segment). The Company’s Medical
Segment has not generated any revenue as it remains in the R&D stage. The Medical Segment has substantially reduced its R&D
activities due to the need for capital to fund these activities. The Company anticipates that the Medical Segment will not resume
full R&D activities until the necessary capital is obtained through its own credit facility or additional equity raise or
obtains partners willing to provide funding for its R&D. All costs incurred by the Medical Segment are reflected within R&D
in the accompanying consolidated financial statements. 
  
Our
reporting segments exclude our corporate headquarters and our discontinued operations (see “Note 11 – Discontinued
Operations”) which do not generate revenues. 
  
The
table below presents certain financial information of our operating segments for the three and six months ended June 30, 2019
and 2018 (in thousands). 
  
    | Segment
    Reporting for the Quarter Ended June 30, 2019 | 
 
    |   | 
  | 
    Treatment | 
  | 
  | 
    Services | 
  | 
  | 
    Medical | 
  | 
  | 
    Segments
     Total | 
  | 
  | 
    Corporate(1) | 
  | 
  | 
    Consolidated
     Total | 
  | 
 
    | Revenue
    from external customers | 
  | 
    $ | 
10,094 | 
  | 
  | 
    $ | 
7,041 | 
  | 
  | 
      | 
— | 
  | 
  | 
    $ | 
17,135 | 
  | 
  | 
    $ | 
— | 
  | 
  | 
    $ | 
17,135 | 
  | 
 
    | Intercompany
    revenues | 
  | 
      | 
7 | 
  | 
  | 
      | 
42 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
49 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
 
    | Gross
    profit | 
  | 
      | 
2,627 | 
  | 
  | 
      | 
644 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
3,271 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
3,271 | 
  | 
 
    | Research
    and development | 
  | 
      | 
136 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
80 | 
  | 
  | 
      | 
216 | 
  | 
  | 
      | 
7 | 
  | 
  | 
      | 
223 | 
  | 
 
    | Interest
    income | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
107 | 
  | 
  | 
      | 
107 | 
  | 
 
    | Interest
    expense | 
  | 
      | 
(30 | 
) | 
  | 
      | 
(4 | 
) | 
  | 
      | 
— | 
  | 
  | 
      | 
(34 | 
) | 
  | 
      | 
(73 | 
) | 
  | 
      | 
(107 | 
) | 
 
    | Interest
    expense-financing fees | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
(60 | 
) | 
  | 
      | 
(60 | 
) | 
 
    | Depreciation
    and amortization | 
  | 
      | 
233 | 
  | 
  | 
      | 
79 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
312 | 
  | 
  | 
      | 
5 | 
  | 
  | 
      | 
317 | 
  | 
 
    | Segment
    income (loss) before income taxes | 
  | 
      | 
1,611 | 
  | 
  | 
      | 
137 | 
  | 
  | 
      | 
(80 | 
) | 
  | 
      | 
1,668 | 
  | 
  | 
      | 
(1,289 | 
) | 
  | 
      | 
379 | 
  | 
 
    | Income
    tax expense | 
  | 
      | 
6 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
6 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
6 | 
  | 
 
    | Segment
    income (loss) | 
  | 
      | 
1,605 | 
  | 
  | 
      | 
137 | 
  | 
  | 
      | 
(80 | 
) | 
  | 
      | 
1,662 | 
  | 
  | 
      | 
(1,289 | 
) | 
  | 
      | 
373 | 
  | 
 
    | Expenditures
    for segment assets | 
  | 
      | 
73 | 
  | 
  | 
      | 
15 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
88 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
88 | 
  | 
 
 
  
    | Segment
    Reporting for the Quarter Ended June 30, 2018 | 
 
    |   | 
  | 
    Treatment | 
  | 
  | 
    Services | 
  | 
  | 
    Medical | 
  | 
  | 
    Segments
     Total | 
  | 
  | 
    Corporate(1) | 
  | 
  | 
    Consolidated
     Total | 
  | 
 
    | Revenue
    from external customers | 
  | 
    $ | 
9,146 | 
  | 
  | 
    $ | 
4,014 | 
  | 
  | 
      | 
— | 
  | 
  | 
    $ | 
13,160 | 
  | 
  | 
    $ | 
—
                                          | 
  | 
  | 
    $ | 
13,160 | 
  | 
 
    | Intercompany
    revenues | 
  | 
      | 
77 | 
  | 
  | 
      | 
26 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
103 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
 
    | Gross
    profit | 
  | 
      | 
1,523 | 
  | 
  | 
      | 
520 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
2,043 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
2,043 | 
  | 
 
    | Research
    and development | 
  | 
      | 
115 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
71 | 
  | 
  | 
      | 
186 | 
  | 
  | 
      | 
33 | 
  | 
  | 
      | 
219 | 
  | 
 
    | Interest
    income | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
81 | 
  | 
  | 
      | 
81 | 
  | 
 
    | Interest
    expense | 
  | 
      | 
(8 | 
) | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
(8 | 
) | 
  | 
      | 
(54 | 
) | 
  | 
      | 
(62 | 
) | 
 
    | Interest
    expense-financing fees | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
(9 | 
) | 
  | 
      | 
(9 | 
) | 
 
    | Depreciation
    and amortization | 
  | 
      | 
227 | 
  | 
  | 
      | 
123 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
350 | 
  | 
  | 
      | 
9 | 
  | 
  | 
      | 
359 | 
  | 
 
    | Segment
    income (loss) before income taxes | 
  | 
      | 
2,028 | 
(2) | 
  | 
      | 
116 | 
  | 
  | 
      | 
(71 | 
) | 
  | 
      | 
2,073 | 
  | 
  | 
      | 
(1,266 | 
) | 
  | 
      | 
807 | 
  | 
 
    | Income
    tax expense | 
  | 
      | 
14 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
14 | 
  | 
  | 
      | 
5 | 
  | 
  | 
      | 
19 | 
  | 
 
    | Segment
    income (loss) | 
  | 
      | 
2,014 | 
  | 
  | 
      | 
116 | 
  | 
  | 
      | 
(71 | 
) | 
  | 
      | 
2,059 | 
  | 
  | 
      | 
(1,271 | 
) | 
  | 
      | 
788 | 
  | 
 
    | Expenditures
    for segment assets | 
  | 
      | 
271 | 
  | 
  | 
      | 
35 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
306 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
306 | 
  | 
 
 
  
    | Segment
    Reporting for the Six Months Ended June 30, 2019 | 
 
    |   | 
  | 
    Treatment | 
  | 
  | 
    Services | 
  | 
  | 
    Medical | 
  | 
  | 
    Segments
    Total | 
  | 
  | 
    Corporate(1) | 
  | 
  | 
    Consolidated
     Total | 
  | 
 
    | Revenue
    from external customers | 
  | 
    $ | 
19,999 | 
  | 
  | 
    $ | 
8,844 | 
  | 
  | 
      | 
— | 
  | 
  | 
    $ | 
28,843 | 
  | 
  | 
    $ | 
— | 
  | 
  | 
    $ | 
28,843 | 
  | 
 
    | Intercompany
    revenues | 
  | 
      | 
9 | 
  | 
  | 
      | 
63 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
72 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
 
    | Gross
    profit | 
  | 
      | 
5,584 | 
  | 
  | 
      | 
188 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
5,772 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
5,772 | 
  | 
 
    | Research
    and development | 
  | 
      | 
283 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
154 | 
  | 
  | 
      | 
437 | 
  | 
  | 
      | 
13 | 
  | 
  | 
      | 
450 | 
  | 
 
    | Interest
    income | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
188 | 
  | 
  | 
      | 
188 | 
  | 
 
    | Interest
    expense | 
  | 
      | 
(47 | 
) | 
  | 
      | 
(13 | 
) | 
  | 
      | 
— | 
  | 
  | 
      | 
(60 | 
) | 
  | 
      | 
(134 | 
) | 
  | 
      | 
(194 | 
) | 
 
    | Interest
    expense-financing fees | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
(70 | 
) | 
  | 
      | 
(70 | 
) | 
 
    | Depreciation
    and amortization | 
  | 
      | 
470 | 
  | 
  | 
      | 
157 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
627 | 
  | 
  | 
      | 
14 | 
  | 
  | 
      | 
641 | 
  | 
 
    | Segment
    income (loss) before income taxes | 
  | 
      | 
3,487 | 
  | 
  | 
      | 
(875 | 
) | 
  | 
      | 
(154 | 
) | 
  | 
      | 
2,458 | 
  | 
  | 
      | 
(2,590 | 
) | 
  | 
      | 
(132 | 
) | 
 
    | Income
    tax expense | 
  | 
      | 
45 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
45 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
45 | 
  | 
 
    | Segment
    income (loss) | 
  | 
      | 
3,442 | 
  | 
  | 
      | 
(875 | 
) | 
  | 
      | 
(154 | 
) | 
  | 
      | 
2,413 | 
  | 
  | 
      | 
(2,590 | 
) | 
  | 
      | 
(177 | 
) | 
 
    | Expenditures
    for segment assets | 
  | 
      | 
294 | 
  | 
  | 
      | 
18 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
312 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
312 | 
  | 
 
 
  
    | Segment
    Reporting for the Six Months Ended June 30, 2018 | 
 
    |   | 
  | 
    Treatment | 
  | 
  | 
    Services | 
  | 
  | 
    Medical | 
  | 
  | 
    Segments
     Total | 
  | 
  | 
    Corporate(1) | 
  | 
  | 
    Consolidated
     Total | 
  | 
 
    | Revenue
    from external customers | 
  | 
    $ | 
18,105 | 
  | 
  | 
    $ | 
7,712 | 
  | 
  | 
      | 
— | 
  | 
  | 
    $ | 
25,817 | 
  | 
  | 
    $ | 
— | 
  | 
  | 
    $ | 
25,817 | 
  | 
 
    | Intercompany
    revenues | 
  | 
      | 
289 | 
  | 
  | 
      | 
39 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
328 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
 
    | Gross
    profit | 
  | 
      | 
4,303 | 
  | 
  | 
      | 
1,060 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
5,363 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
5,363 | 
  | 
 
    | Research
    and development | 
  | 
      | 
228 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
172 | 
  | 
  | 
      | 
400 | 
  | 
  | 
      | 
51 | 
  | 
  | 
      | 
451 | 
  | 
 
    | Interest
    income | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
130 | 
  | 
  | 
      | 
130 | 
  | 
 
    | Interest
    expense | 
  | 
      | 
(8 | 
) | 
  | 
      | 
(1 | 
) | 
  | 
      | 
— | 
  | 
  | 
      | 
(9 | 
) | 
  | 
      | 
(106 | 
) | 
  | 
      | 
(115 | 
) | 
 
    | Interest
    expense-financing fees | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
(18 | 
) | 
  | 
      | 
(18 | 
) | 
 
    | Depreciation
    and amortization | 
  | 
      | 
467 | 
  | 
  | 
      | 
246 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
713 | 
  | 
  | 
      | 
18 | 
  | 
  | 
      | 
731 | 
  | 
 
    | Segment
    income (loss) before income taxes | 
  | 
      | 
3,772 | 
(2) | 
  | 
      | 
31 | 
  | 
  | 
      | 
(172 | 
) | 
  | 
      | 
3,631 | 
  | 
  | 
      | 
(2,521 | 
) | 
  | 
      | 
1,110 | 
  | 
 
    | Income
    tax expense | 
  | 
      | 
65 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
65 | 
  | 
  | 
      | 
5 | 
  | 
  | 
      | 
70 | 
  | 
 
    | Segment
    income (loss) | 
  | 
      | 
3,707 | 
  | 
  | 
      | 
31 | 
  | 
  | 
      | 
(172 | 
) | 
  | 
      | 
3,566 | 
  | 
  | 
      | 
(2,526 | 
) | 
  | 
      | 
1,040 | 
  | 
 
    | Expenditures
    for segment assets | 
  | 
      | 
106 | 
  | 
  | 
      | 
10 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
116 | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
116 | 
  | 
 
 
  
(1)
Amounts reflect the activity for corporate headquarters not included in the segment information. 
  
(2)
Amounts included a net gain of $1,596,000 recorded resulting from the exchange offer of the Series B Preferred Stock of
our M&EC subsidiary which was consummated on May 30, 2018. 
 |