Perma-Fix Environmental Services (PESI) 10-Q 10 May 23 2023 Q1 Quarterly report Financial data

Cover

Cover - shares	3 Months Ended
	Mar. 31, 2023	May 02, 2023
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Mar. 31, 2023
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2023
Current Fiscal Year End Date	--12-31
Entity File Number	1-11596
Entity Registrant Name	PERMA FIX ENVIRONMENTAL SERVICES INC
Entity Central Index Key	0000891532
Entity Tax Identification Number	58-1954497
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	8302 Dunwoody Place
Entity Address, Address Line Two	Suite 250
Entity Address, City or Town	Atlanta
Entity Address, State or Province	GA
Entity Address, Postal Zip Code	30350
City Area Code	(770)
Local Phone Number	587-9898
Title of 12(b) Security	Common Stock, $.001 Par Value
Trading Symbol	PESI
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		13,419,165

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands		Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash		$ 2,411	$ 1,866
Accounts receivable, net of allowance for credit losses of $7 and $57, respectively		10,881	9,364
Unbilled receivables		6,701	6,062
Inventories		1,104	814
Prepaid and other assets		3,800	5,405
Current assets related to discontinued operations		19	15
Total current assets		24,916	23,526
Property and equipment:
Buildings and land		24,045	24,021
Equipment		21,704	21,242
Vehicles		442	442
Leasehold improvements		23	23
Office furniture and equipment		1,133	1,299
Construction-in-progress		1,016	727
Total property and equipment		48,363	47,754
Less accumulated depreciation		(29,299)	(28,797)
Net property and equipment		19,064	18,957
Property and equipment related to discontinued operations	[1]	81	81
Operating lease right-of-use assets		1,852	1,971
Intangibles and other long term assets:
Permits		9,615	9,610
Other intangible assets - net		567	629
Finite risk sinking fund (restricted cash)		11,637	11,570
Deferred tax assets		4,350	4,116
Other assets		421	438
Total assets		72,503	70,898
Current liabilities:
Accounts payable		11,812	10,325
Accrued expenses		4,725	4,593
Disposal/transportation accrual		1,130	887
Deferred revenue		5,003	4,813
Accrued closure costs - current		610	682
Current portion of long-term debt		446	476
Current portion of operating lease liabilities		401	416
Current portion of finance lease liabilities		161	154
Current liabilities related to discontinued operations		289	362
Total current liabilities		24,577	22,708
Accrued closure costs		7,387	7,284
Long-term debt, less current portion		443	563
Long-term operating lease liabilities, less current portion		1,493	1,584
Long-term finance lease liabilities, less current portion		320	318
Long-term liabilities related to discontinued operations		911	908
Total long-term liabilities		10,554	10,657
Total liabilities		35,131	33,365
Commitments and Contingencies (Note 9 )
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; 13,397,436 and 13,332,398 shares issued, respectively; 13,389,794 and 13,324,756 shares outstanding, respectively		13	13
Additional paid-in capital		115,452	115,209
Accumulated deficit		(77,847)	(77,436)
Accumulated other comprehensive loss		(158)	(165)
Less Common Stock in treasury, at cost; 7,642 shares		(88)	(88)
Total stockholders’ equity		37,372	37,533
Total liabilities and stockholders’ equity		$ 72,503	$ 70,898
[1]net of accumulated depreciation of $ 10,000

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 7	$ 57
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	13,397,436	13,332,398
Common stock, shares outstanding	13,389,794	13,324,756
Treasury stock, shares	7,642	7,642

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Revenues	$ 20,107,000	$ 15,915,000
Cost of goods sold	17,098,000	14,279,000
Gross profit	3,009,000	1,636,000
Selling, general and administrative expenses	3,486,000	3,422,000
Research and development	99,000	96,000
Loss on disposal of property and equipment		1,000
Loss from operations	(576,000)	(1,883,000)
Other income (expense):
Interest income	127,000	11,000
Interest expense	(53,000)	(35,000)
Interest expense-financing fees	(20,000)	(13,000)
Other		(2,000)
Loss from continuing operations before taxes	(522,000)	(1,922,000)
Income tax benefit	(204,000)	(673,000)
Loss from continuing operations, net of taxes	(318,000)	(1,249,000)
Loss from discontinued operations (net of taxes) (Note 10)	(93,000)	(94,000)
Net loss	$ (411,000)	$ (1,343,000)
Net loss per common share - basic and diluted:
Continuing operations	$ (0.02)	$ (0.09)
Discontinued operations	(0.01)	(0.01)
Net loss per common share	$ (0.03)	$ (0.10)
Number of common shares used in computing net loss per share:
Basic	13,358	13,234
Diluted	13,358	13,234

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Net loss	$ (411)	$ (1,343)
Other comprehensive income:
Foreign currency translation gain	7	26
Total other comprehensive income	7	26
Comprehensive loss	$ (404)	$ (1,317)

Condensed Consolidated Statem_3

Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Common Stock Held In Treasury [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2021	$ 13	$ 114,307	$ (88)	$ (28)	$ (73,620)	$ 40,584
Balance, shares at Dec. 31, 2021	13,222,552
Net loss					(1,343)	(1,343)
Foreign currency translation				26		26
Issuance of Common Stock for services		123				123
Issuance of Common Stock for services, shares	19,520
Stock-Based Compensation		102				102
Balance at Mar. 31, 2022	$ 13	114,532	(88)	(2)	(74,963)	39,492
Balance, shares at Mar. 31, 2022	13,242,072
Balance at Dec. 31, 2022	$ 13	115,209	(88)	(165)	(77,436)	37,533
Balance, shares at Dec. 31, 2022	13,332,398
Net loss					(411)	(411)
Foreign currency translation				7		7
Issuance of Common Stock for services		118				118
Issuance of Common Stock for services, shares	33,319
Issuance of Common Stock upon exercise of options		7				7
Issuance of Common Stock upon exercise of options, shares	31,719
Stock-Based Compensation		118				118
Balance at Mar. 31, 2023	$ 13	$ 115,452	$ (88)	$ (158)	$ (77,847)	$ 37,372
Balance, shares at Mar. 31, 2023	13,397,436

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net loss		$ (411,000)	$ (1,343,000)
Less: loss from discontinued operations, net of taxes (Note 10)		(93,000)	(94,000)
Loss from continuing operations, net of taxes		(318,000)	(1,249,000)
Adjustments to reconcile loss from continuing operations to cash provided by operating activities :
Depreciation and amortization		747,000	456,000
Amortization of debt issuance costs		20,000	13,000
Deferred tax benefit		(204,000)	(673,000)
Recovery of credit losses on accounts receivable		(6,000)	(55,000)
Loss on disposal of plant, property, and equipment			1,000
Issuance of common stock for services		118,000	123,000
Stock-based compensation		118,000	102,000
Changes in operating assets and liabilities of continuing operations:
Accounts receivable		(1,511,000)	1,105,000
Unbilled receivables		(639,000)	3,720,000
Prepaid expenses, inventories and other assets		1,876,000	1,097,000
Accounts payable, accrued expenses and unearned revenue		1,561,000	(4,492,000)
Cash provided by continuing operations		1,762,000	148,000
Cash used in discontinued operations		(198,000)	(142,000)
Cash provided by operating activities		1,564,000	6,000
Cash flows from investing activities:
Purchases of property and equipment	[1]	(748,000)	(345,000)
Proceeds from sale of plant, property, and equipment			24,000
Cash used in investing activities of continuing operations		(748,000)	(321,000)
Cash flows from financing activities:
Repayments of revolving credit borrowings		(20,257,000)	(17,494,000)
Borrowing on revolving credit		20,257,000	17,494,000
Proceeds from issuance of Common Stock upon exercise of options		7,000
Principal repayments of finance lease liabilities		(41,000)	(58,000)
Principal repayments of long term debt		(137,000)	(110,000)
Payment of debt issuance costs		(33,000)	(21,000)
Cash used in financing activities		(204,000)	(189,000)
Increase (decrease) in cash and finite risk sinking fund (restricted cash)		612,000	(504,000)
Cash and finite risk sinking fund (restricted cash) at beginning of period		13,436,000	15,911,000
Cash and finite risk sinking fund (restricted cash) at end of period		14,048,000	15,407,000
Supplemental disclosure:
Interest paid		55,000	34,000
Income taxes paid			6,000
Non-cash investing and financing activities:
Equipment purchase subject to finance lease		$ 50,000	$ 114,000
[1]Net of financed amount of $ 50,000 14,000

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2023
Accounting Policies [Abstract]
Basis of Presentation	1. Basis of Presentation The condensed consolidated financial statements included herein have been prepared by the Company (which may be referred to as we, us or our), without an audit, pursuant to the rules and regulations of the Securities and Exchange Commission (“the Commission”). Certain information and note disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted pursuant to such rules and regulations, although the Company believes the disclosures which are made are adequate to make the information presented not misleading. Further, the condensed consolidated financial statements reflect, in the opinion of management, all adjustments (which include only normal recurring adjustments) necessary to present fairly the financial position and results of operations as of and for the periods indicated. The results of operations for the three months ended March 31, 2023 are not necessarily indicative of results to be expected for the fiscal year ending December 31, 2023. The Company suggests that these condensed consolidated financial statements be read in conjunction with the consolidated financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022. The condensed consolidated financial statements include the accounts of our wholly-owned subsidiaries. The Company’s continuing operations also consisted of Perma-Fix ERRG, a variable interest entity (“VIE”) for which we were the primary beneficiary. During the fourth quarter of 2022, project work under the JV was completed.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2023
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Our accounting policies are as set forth in the notes to the December 31, 2022 consolidated financial statements referred to above. Recently Issued Accounting Standards – Not Yet Adopted In August 2020, the FASB issued ASU No. 2020-06, “Debt – Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging – Contracts in Entity’s Own Equity.” ASU 2020-06 simplifies the accounting for convertible instruments by removing major separation models and removing certain settlement condition qualifiers for the derivatives scope exception for contracts in an entity’s own equity, and simplifies the related diluted net income per share calculation for both Subtopics. ASU 2020-06 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2023, for the Company as a smaller reporting company. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. The Company is currently evaluating the impact of this ASU on its financial statements and disclosures.

Revenue

Revenue	3 Months Ended
	Mar. 31, 2023
Revenue from Contract with Customer [Abstract]
Revenue	3. Revenue Disaggregation of Revenue In general, the Company’s business segmentation is aligned according to the nature and economic characteristics of our services and provides meaningful disaggregation of each business segment’s results of operations. The nature of the Company’s performance obligations within our Treatment and Services Segments results in the recognition of our revenue primarily over time. The following tables present further disaggregation of our revenues by different categories for our Services and Treatment Segments: Schedule of Disaggregation of Revenue Revenue by Contract Type (In thousands) Three Months Ended Three Months Ended March 31, 2023 March 31, 2022 Treatment Services Total Treatment Services Total Fixed price $ 9,594 $ 8,647 $ 18,241 $ 7,479 $ 5,761 $ 13,240 Time and materials — 1,866 1,866 — 2,675 2,675 Total $ 9,594 $ 10,513 $ 20,107 $ 7,479 $ 8,436 $ 15,915 Revenue $ 9,594 $ 10,513 $ 20,107 $ 7,479 $ 8,436 $ 15,915 Revenue by generator (In thousands) Three Months Ended Three Months Ended March 31, 2023 March 31, 2022 Treatment Services Total Treatment Services Total Domestic government $ 7,257 $ 9,718 $ 16,975 $ 5,815 $ 8,245 $ 14,060 Domestic commercial 2,206 597 2,803 1,436 162 1,598 Foreign government 95 177 272 92 6 98 Foreign commercial 36 21 57 136 23 159 Total $ 9,594 $ 10,513 $ 20,107 $ 7,479 $ 8,436 $ 15,915 Revenue $ 9,594 $ 10,513 $ 20,107 $ 7,479 $ 8,436 $ 15,915 Contract Balances The timing of revenue recognition and billings results in unbilled receivables (contract assets). The Company’s contract liabilities consist of deferred revenues which represent advance payment from customers in advance of the completion of our performance obligation. The following table represents changes in our contract asset and contract liabilities balances: Schedule of Contract Liabilities Year-to-date Year-to-date (In thousands) March 31, 2023 December 31, 2022 Change ($) Change (%) Contract assets Unbilled receivables - current $ 6,701 $ 6,062 $ 639 10.5 % Contract liabilities Deferred revenue $ 5,003 $ 4,813 $ 190 3.9 % During the three months ended March 31, 2023 and 2022, the Company recognized revenue of $ 3,494,000 3,521,000 Remaining Performance Obligations The Company applies the practical expedient in Accounting Standards Codification (“ASC”) 606-10-50-14 and does not disclose information about remaining performance obligations that have original expected durations of one year or less. Within our Services Segment, there are service contracts which provide that the Company has a right to consideration from a customer in an amount that corresponds directly with the value to the customer of our performance completed to date. For those contracts, the Company has utilized the practical expedient in ASC 606-10-55-18, which allows the Company to recognize revenue in the amount for which we have the right to invoice; accordingly, the Company does not disclose the value of remaining performance obligations for those contracts. The Company’s contracts and subcontracts relating to activities at governmental sites generally allow for termination for convenience at any time at the government’s option without payment of a substantial penalty. The Company does not disclose remaining performance obligations on these contracts.

Leases

Leases	3 Months Ended
	Mar. 31, 2023
Leases
Leases	4. Leases At the inception of an arrangement, the Company determines if an arrangement is, or contains, a lease based on facts and circumstances present in that arrangement. Lease classifications, recognition, and measurement are then determined at the lease commencement date. The Company’s operating lease right-of-use (“ROU”) assets and operating lease liabilities include primarily leases for office and warehouse spaces used to conduct our business. The Company’s operating leases also include a building with land utilized for our waste treatment operations which includes a purchase option. Finance leases consist primarily of processing and transport equipment used by our facilities’ operations. The components of lease cost for the Company’s leases were as follows (in thousands): Schedule of Components of Lease Cost 2023 2022 Three Months Ended March 31, 2023 2022 Operating Lease: Lease cost $ 156 $ 157 Finance Leases: Amortization of ROU assets 38 47 Interst on lease liablity 6 11 Finance leases 44 58 Short-term lease rent expense — 3 Total lease cost $ 200 $ 218 The weighted average remaining lease term and the weighted average discount rate for operating and finance leases at March 31, 2023 were: Schedule of Weighted Average Lease Operating Leases Finance Leases Weighted average remaining lease terms (years) 6.1 3.0 Weighted average discount rate 7.8 % 5.5 % The weighted average remaining lease term and the weighted average discount rate for operating and finance leases at March 31, 2022 were: Operating Leases Finance Leases Weighted average remaining lease terms (years) 6.7 4.0 Weighted average discount rate 7.6 % 6.1 % The following table reconciles the undiscounted cash flows for the operating and finance leases at March 31, 2023 to the operating and finance lease liabilities recorded on the balance sheet (in thousands): Schedule of Operating And Finance Lease Liability Maturity Operating Leases Finance Leases 2023 $ 412 $ 138 2024 416 182 2025 324 160 2026 301 30 2027 286 12 2028 and thereafter 656 2 Total undiscounted lease payments 2,395 524 Less: Imputed interest (501 ) (43 ) Present value of lease payments $ 1,894 $ 481 Current portion of operating lease obligations $ 401 $ — Long-term operating lease obligations, less current portion $ 1,493 $ — Current portion of finance lease obligations $ — $ 161 Long-term finance lease obligations, less current portion $ — $ 320 Supplemental cash flow and other information related to our leases were as follows (in thousands): Schedule of Supplemental Cash Flow And Other Information Related To Leases 2023 2022 Three Months Ended March 31, 2023 2022 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flow from operating leases $ 144 $ 143 Operating cash flow from finance leases $ 6 $ 11 Financing cash flow from finance leases $ 41 $ 58 ROU assets obtained in exchange for lease obligations for: Finance liabilities $ 50 $ 147

Intangible Assets

Intangible Assets	3 Months Ended
	Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	5. Intangible Assets The following table summarizes information relating to the Company’s definite-lived intangible assets: Schedule of Definite Lived Intangible Assets March 31, 2023 December 31, 2022 Weighted Average Amortization Gross Net Gross Net Period Carrying Accumulated Carrying Carrying Accumulated Carrying (Years) Amount Amortization Amount Amount Amortization Amount Other Intangibles (amount in thousands) Patent 8.3 $ 697 $ (377 ) $ 320 $ 711 $ (374 ) $ 337 Software 3 647 (484 ) 163 640 (468 ) 172 Customer relationships 10 3,370 (3,286 ) 84 3,370 (3,250 ) 120 Total $ 4,714 $ (4,147 ) $ 567 $ 4,721 $ (4,092 ) $ 629 The intangible assets noted above 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 years for our definite-lived intangible assets: Schedule of Finite Lived Intangible Assets, Future Amortization Expense Amount Year (In thousands) 2023 (Remaining) $ 140 2024 62 2025 26 2026 25 2027 22 Amortization expenses relating to the definite-lived intangible assets as discussed above were $ 55,000 56,000

Capital Stock, Stock Plans, War

Capital Stock, Stock Plans, Warrants and Stock Based Compensation	3 Months Ended
	Mar. 31, 2023
Share-Based Payment Arrangement [Abstract]
Capital Stock, Stock Plans, Warrants and Stock Based Compensation	6. Capital Stock, Stock Plans, Warrants and Stock Based Compensation The Company has certain stock option plans under which it may award incentive stock options (“ISOs”) and/or non-qualified stock options (“NQSOs”) to employees, officers, outside directors, and outside consultants. On January 19, 2023, the Company granted ISOs to certain employees for the purchase, under the Company’s 2017 Stock Option Plan (the “2017 Plan”), of up to an aggregate 295,000 70,000 40,000 30,000 30,000 30,000 six years one-fifth yearly vesting over a five-year period 3.95 The Company granted a NQSO to Robert Ferguson on July 27, 2017 from the Company’s 2017 Plan for the purchase of up to 100,000 3.65 10,000 30,000 60,000 30,000 502,000 60,000 The following table summarizes stock-based compensation recognized for the three months ended March 31, 2023 and 2022 for our employee and director stock options. Schedule of Share-based Compensation, Allocation of Recognized Period Costs 2023 2022 Stock Options Three Months Ended March 31, 2023 2022 Employee Stock Options $ 86,000 $ 86,000 Director Stock Options 32,000 16,000 Total $ 118,000 $ 102,000 At March 31, 2023, the Company has approximately $ 1,769,000 3.8 The summary of the Company’s total Stock Option Plans as of March 31, 2023 and March 31, 2022, and changes during the periods then ended, are presented below. The Company’s Plans consist of the 2017 Plan and the 2003 Outside Directors Stock Plan (the “2003 Plan”): Schedule of Stock Options Roll Forward Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (years) Aggregate Intrinsic Value (2) Options outstanding January 1, 2023 1,018,400 $ 5.02 - Granted 295,000 $ 3.95 Exercised (44,400 ) $ 3.56 $ 370,196 Forfeited/expired (4,500 ) $ 3.90 Options outstanding end of period (1) 1,264,500 $ 4.83 4.2 $ 8,791,279 Options exercisable at March 31, 2023 (1) 499,500 $ 4.30 2.3 $ 6,047,029 Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (years) Aggregate Intrinsic Value (2) Options outstanding January 1, 2022 1,019,400 $ 4.91 - Granted — — Exercised — — $ — Forfeited/expired — — Options outstanding end of period (1) 1,019,400 $ 4.91 3.8 $ 1,150,167 Options exercisable at March 31, 2022 (1) 455,900 $ 3.92 2.5 $ 779,362 (1) Options with exercise prices ranging from $ 2.79 to $ 7.50 (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. During the three months ended March 31, 2023, the Company issued a total of 33,319 120,000 During the three months ended March 31, 2023, the Company issued an aggregate 29,319 42,000 3.60 2,400 2,400 2.785 6,700 In connection with a $ 2,500,000 60,000 3.51 The warrant expires on April 1, 2024 and remains outstanding at March 31, 2023. Upon Mr. Ferguson’s death, the warrant is now held by Mr. Ferguson’s personal representative and/or beneficiary. The Ferguson Loan was paid-in-full in December 2020

Loss Per Share

Loss Per Share	3 Months Ended
	Mar. 31, 2023
Earnings Per Share [Abstract]
Loss Per Share	7. Loss Per Share Basic loss per share is calculated based on the weighted-average number of outstanding common shares during the applicable period. Diluted 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 loss earnings per shares. The following table reconciles the loss and average share amounts used to compute both basic and diluted loss per share: Schedule of Earning Per Share (Amounts in Thousands, Except for Per Share Amounts) 2023 2022 Three Months Ended (Unaudited) March 31, (Amounts in Thousands, Except for Per Share Amounts) 2023 2022 Loss per common share from continuing operations Loss from continuing operations, net of taxes $ (318 ) $ (1,249 ) Basic and diluted loss per share $ (.02 ) $ (.09 ) Loss per common share from discontinued operations, net of taxes Loss from discontinued operations, net of taxes $ (93 ) $ (94 ) Basic and diluted loss per share $ (.01 ) $ (.01 ) Net loss per common share Net loss $ (411 ) $ (1,343 ) Basic and diluted loss per share $ (.03 ) $ (.10 ) Weighted average shares outstanding: Basic weighted average shares outstanding 13,358 13,234 Add: dilutive effect of stock options — — Add: dilutive effect of warrants — — Diluted weighted average shares outstanding 13,358 13,234 Potential shares excluded from above weighted average share calculations due to their anti-dilutive effect include: Stock options 335 405 Warrant — — Antidilutive Securities — —

Long Term Debt

Long Term Debt	3 Months Ended
	Mar. 31, 2023
Debt Disclosure [Abstract]
Long Term Debt	8. Long Term Debt Long-term debt consists of the following: Schedule of Long Term Debt (Amounts in Thousands) March 31, 2023 December 31, 2022 Revolving Credit facility dated May 8, 2020, borrowings based upon eligible accounts 2024. Effective interest rate for first quarter of 2023 was 9.7% (1) $ — $ — Revolving Credit facility dated May 8, 2020, borrowings based upon eligible accounts May 15, 2024 Effective interest rate for first quarter of 2023 was 9.7 (1) $ — $ — Term Loan dated May 8, 2020, payable in equal monthly installments of principal, May 15, 2024 Effective interest rate for the first quarter of 2023 was 8.0 (1) 432 (2) 552 (2) Capital Line dated May 4, 2021, payable in equal monthly installments of principal, May 15, 2024 Effective interest rate for the first quarter of 2023 was 8.0 (1) 437 463 Notes Payable to 2023 and 2025, annual interest rate of 5.6 9.1 20 24 Total debt 889 1,039 Less current portion of long-term debt 446 476 Long-term debt $ 443 $ 563 (1) Our revolving credit facility is collateralized by our accounts receivable, and our term loan and capital line are collateralized by our property, plant, and equipment. (2) Net of debt issuance costs of ($ 101,000 88,000 Revolving Credit and Term Loan Agreement The Company entered into a Second Amended and Restated Revolving Credit, Term Loan and Security Agreement, dated May 8, 2020 (“Loan Agreement”), with PNC National Association (“PNC”), acting as agent and lender. The Loan Agreement, as amended, provides the Company with the following credit facility with a maturity date of May 15, 2024 12,500,000 12,500,000 18,000,000 1,742,000 35,547 1,000,000 524,000 8,700 On March 21, 2023, the Company entered into an amendment to its Loan Agreement, as amended, with its lender which provides, among other things, the following: ● removed the quarterly fixed charge coverage ratio (“FCCR”) testing requirement for the fourth quarter of 2022 and removes the FCCR testing requirement the first quarter of 2023; ● reduced the maximum revolving credit line under the credit facility from $ 18,000,000 12,500,000 ● reinstates the quarterly FCCR testing requirement starting in the second quarter of 2023 using a trailing twelve-month period (with no change to the minimum 1.15:1 ratio requirement for each quarter); and ● requires maintenance of a minimum of $ 3,000,000 In connection with the amendment, the Company paid its lender a fee of $ 25,000 Pursuant to the Loan Agreement, as amended, payment of annual rate of interest due on the revolving credit is at prime (8.00% at March 31, 2023) plus 2% or Term Secured Overnight Finance Rate (“SOFR”) (as defined in the Loan Agreement, as amended) plus 3.00% plus an SOFR Adjustment applicable for an interest period selected by the Company and payment of annual rate of interest due on the term loan and the capital loan is at prime plus 2.50% or Term SOFR Rate plus 3.50% plus an SOFR Adjustment applicable for an interest period selected by the Company. A SOFR Adjustment rates of 0.10% and 0.15% are applicable for a one-month interest period and three-month period, respectively, that may be selected by the Company After May 7, 2022, the Company may terminate its Loan Agreement, as amended upon 90 days’ prior written notice upon payment in full of our obligations under the Loan Agreement, as amended, with no early termination fees. At March 31, 2023, the borrowing availability under the Company’s revolving credit was approximately $ 7,133,000 3,016,000 7,133,000 3,000,000 The Company’s credit facility under its Loan Agreement, as amended, 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 was not required to perform testing of the FCCR requirement in the first quarter of 2023 pursuant to the March 21, 2023 amendment as discussed above, otherwise, it met all of its other financial covenant requirements.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	9. Commitments and Contingencies Hazardous Waste In connection with our waste management services, the Company processes hazardous, non-hazardous, low-level radioactive and mixed (containing both hazardous and low-level radioactive) waste, which the Company transports to its own, or other, facilities for destruction or disposal. As a result of disposing of hazardous substances, in the event any cleanup is required at the disposal site, the Company 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, the Company may be involved in various litigation. The Company is 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. Tetra Tech EC, Inc. (“Tetra Tech”) During July 2020, Tetra Tech EC, Inc. (“Tetra Tech”) filed a complaint in the United States District Court for the Northern District of California (the “Court”) against CH2M Hill, Inc. (“CH2M”) and four subcontractors of CH2M, including the Company (“Defendants”). The complaint alleges various claims, including a claim for negligence, negligent misrepresentation, equitable indemnification and related business claims against all defendants related to alleged damages suffered by Tetra Tech in respect of certain draft reports prepared by defendants at the request of the U.S. Navy as part of an investigation and review of certain whistleblower complaints about Tetra Tech’s environmental restoration at the Hunter’s Point Naval Shipyard in San Francisco. CH2M was hired by the Navy in 2016 to review Tetra Tech’s work. CH2M subcontracted with environmental consulting and cleanup firms Battelle Memorial Institute, Cabrera Services, Inc., SC&A, Inc. and the Company to assist with the review, according to the complaint. The Company’s insurance carrier is providing a defense on our behalf in connection with this lawsuit, subject to a $ 100,000 The majority of Tetra Tech’s claims have been dismissed by the Court. Remaining claims include: (1) Intentional Interference with Contractual Relations; and (2) Inducing a Breach of Contract. The Company continues to believe it has no liability exposure to Tetra Tech. Perma-Fix of Canada, Inc. (“PF Canada”) During the fourth quarter of 2021, PF Canada received a Notice of Termination (“NOT”) from Canadian Nuclear Laboratories, LTD. (“CNL”) on a Task Order Agreement (“TOA”) that PF Canada entered into with CNL in May 2019 for remediation work within Ontario, Canada (“Agreement”). The NOT was received after work under the TOA was substantially completed and work under the TOA has since been completed. CNL may terminate the TOA at any time for convenience. As of March 31, 2023, PF Canada has approximately $ 1,855,000 1,061,000 1,900,000 Insurance The Company has a 25 28,177,000 22,454,000 11,637,000 11,570,000 2,166,000 2,099,000 67,000 11,000 100 Letter of Credits and Bonding Requirements From time to time, the Company is required to post standby letters of credit and various bonds to support contractual obligations to customers and other obligations, including facility closures. At March 31, 2023, the total amount of standby letters of credit outstanding was approximately $ 3,016,000 27,321,000

Discontinued Operations

Discontinued Operations	3 Months Ended
	Mar. 31, 2023
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	10. Discontinued Operations The Company’s discontinued operations consist of all our subsidiaries included in our previous Industrial Segment which encompasses subsidiaries divested in 2011 and prior and three previously closed locations. The Company’s discontinued operations had net losses of $ 93,000 30,000 94,000 63,000 The following table presents the major class of assets of discontinued operations as of March 31, 2023 and December 31, 2022. No assets and liabilities were held for sale at each of the periods noted. Schedule of Disposal Groups, Including Discontinued Operation Balance Sheet March 31, December 31, (Amounts in Thousands) 2023 2022 Current assets Other assets $ 19 $ 15 Total current assets 19 15 Long-term assets Property, plant and equipment, net (1) 81 81 Total long-term assets 81 81 Total assets $ 100 $ 96 Current liabilities Accounts payable $ 39 $ 104 Accrued expenses and other liabilities 138 146 Environmental liabilities 112 112 Total current liabilities 289 362 Long-term liabilities Closure liabilities 162 159 Environmental liabilities 749 749 Total long-term liabilities 911 908 Total liabilities $ 1,200 $ 1,270 (1) net of accumulated depreciation of $ 10,000

Operating Segments

Operating Segments	3 Months Ended
	Mar. 31, 2023
Segment Reporting [Abstract]
Operating Segments	11. 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 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 four 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 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; ○ 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 nuclear, environmental, and occupational safety and health (“NEOSH”) instrumentation. Our reporting segments exclude our corporate headquarters and our discontinued operations (see “Note 10 – Discontinued Operations”) which do not generate revenues. The table below presents certain financial information of our operating segments for the three months ended March 31, 2023 and 2022 (in thousands): Schedule of Segment Reporting Information Treatment Services Segments Total Corporate (1) Consolidated Total Segment Reporting for the Quarter Ended March 31, 2023 Treatment Services Segments Total Corporate (1) Consolidated Total Revenue from external customers $ 9,594 $ 10,513 $ 20,107 $ — $ 20,107 Intercompany revenues 204 19 223 — — Gross profit 1,252 1,757 3,009 — 3,009 Research and development 67 3 70 29 99 Interest income — — — 127 127 Interest expense (22 ) (1 ) (23 ) (30 ) (53 ) Interest expense-financing fees — — — (20 ) (20 ) Depreciation and amortization 573 160 733 14 747 Segment income (loss) before income taxes 157 943 1,100 (1,622 ) (522 ) Income tax benefit (174 ) (30 ) (204 ) — (204 ) Segment income (loss) 331 973 1,304 (1,622 ) (318 ) Expenditures for segment assets 748 — 748 — 748 (2) Treatment Services Segments Total Corporate (1) Consolidated Total Segment Reporting for the Quarter Ended March 31, 2022 Treatment Services Segments Total Corporate (1) Consolidated Total Revenue from external customers $ 7,479 $ 8,436 $ 15,915 $ — $ 15,915 Intercompany revenues — — — — — Gross profit 638 998 1,636 — 1,636 Research and development 65 14 79 17 96 Interest income — — — 11 11 Interest expense (14 ) (1 ) (15 ) (20 ) (35 ) Interest expense-financing fees — — — (13 ) (13 ) Depreciation and amortization 371 71 442 14 456 Segment (loss) income before income taxes (481 ) 285 (196 ) (1,726 ) (1,922 ) Income tax benefit (559 ) (114 ) (673 ) — (673 ) Segment income (loss) 78 399 477 (1,726 ) (1,249 ) Expenditures for segment assets 296 49 345 — 345 (2) (1) Amounts reflect the activity for corporate headquarters not included in the segment information. (2) Net of financed amount of $ 50,000 14,000

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Income Taxes	12. Income Taxes The Company uses an estimated annual effective tax rate, which is based on expected annual income, statutory tax rates and tax planning opportunities available in the various jurisdictions in which the Company operates, to determine its quarterly provision for income taxes. The Company had income tax benefits of approximately $ 204,000 673,000 39.1 35.0

Employee Retention Credit (_ERC

Employee Retention Credit (“ERC”)	3 Months Ended
	Mar. 31, 2023
Employee Retention Credit
Employee Retention Credit (“ERC”)	13. Employee Retention Credit (“ERC”) The Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”), which was enacted on March 27, 2020, provides an ERC for qualifying businesses keeping employees on their payroll during the COVID-19 pandemic. The ERC was subsequently amended by the Taxpayer Certainty and Disaster Tax Relief Act of 2020, the Consolidated Appropriation Act of 2021, and the American Rescue Plan Act of 2021, all of which amended and extended the ERC availability and guidelines under the CARES Act. Following these amendments, the Company determined that it was eligible for the ERC, and as a result of the foregoing legislations, was eligible to claim a refundable tax credit against the Company’s share of certain payroll taxes equal to 70 10,000 7,000 During the third quarter of 2022, the Company determined it was eligible for the ERC and amended its third quarter 2021 employer payroll tax filings claiming a refund from the U.S. Treasury in the amount of approximately $ 1,975,000 . As there is no authoritative guidance under U.S. GAAP on accounting for government assistance to for-profit business entities, the Company accounted for the ERC by analogy to International Accounting Standard (“IAS”) 20, Accounting for Government Grants and Disclosure of Government Assistance. In accordance with IAS 20, management determined it had reasonable assurance for receipt of the ERC and recorded the expected refund as other income (within “Other income (expense)”) on the Company’s Condensed Consolidated Statements of Operations and other receivables (within “Prepaid and other assets”) on the Company’s Condensed Consolidated Balance Sheets. On March 30, 2023, the Company received the ERC refund of $ 1,975,000 including approximately $ 60,000 in interest (recorded within “Interest Income” on the Company’s Condensed Consolidated Statements of Operations for the three months ended March 31, 2023), totaling approximately $ 2,035,000 .

Executive Compensation

Executive Compensation	3 Months Ended
	Mar. 31, 2023
Compensation Related Costs [Abstract]
Executive Compensation	14. Executive Compensation Management Incentive Plans (“MIPs”) On January 19, 2023, the Company’s Board and the Compensation and Stock Option Committee (the “Compensation Committee”) approved individual MIP for the calendar year 2023 for each of the Company’s executive officers. Each MIP is effective January 1, 2023 and applicable for year 2023. Each MIP provides guidelines for the calculation of annual cash incentive-based compensation, subject to Compensation Committee oversight and modification. The performance compensation under each of the MIPs is based upon meeting certain of the Company’s separate target objectives during 2023. Assuming each target objective is achieved under the same performance threshold range under each MIP, the total potential target performance compensation payable ranges from 25 150 93,717 562,305 25 100 76,193 304,772 25 100 63,495 253,980 25 100 76,193 304,772 25 100 65,308 261,233

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2023
Subsequent Events [Abstract]
Subsequent Events	15. Subsequent Events Management evaluated events occurring subsequent to March 31, 2023 through May 10, 2023 Employment Agreements On April 20, 2023, the Company’s Board and the Compensation Committee approved and the Company entered into, an employment agreement with each of Mark Duff, CEO (the “CEO Employment Agreement”), Ben Naccarato, CFO (the “CFO Employment Agreement”), Dr. Louis Centofanti, EVP of Strategic Initiatives (the “EVP of Strategic Initiatives Employment Agreement”), Andrew Lombardo, EVP of Nuclear and Technical Services (the “EVP of Nuclear and Technical Services Employment Agreement”), and Richard Grondin, EVP of Waste Treatment Operations (the “EVP of Waste Treatment Operations Employment Agreement”), collectively with the CEO Employment Agreement, the CFO Employment Agreement, the EVP of Strategic Initiative Employment Agreement, the EVP of Nuclear and Technical Services Employment Agreement and the EVP of Waste Treatment Operations Employment Agreement, the “New Employment Agreements” and each individually the “New Employment Agreement.” The Company had previously entered into an employment agreement dated July 20, 2020, with each of Mark Duff, Ben Naccarato, Dr. Louis Centofanti, Andrew Lombardo and Richard Grondin, with each of the five employment agreements due to expire on July 22, 2023. These five employment agreements dated July 22, 2020 were terminated effective April 20, 2023. The New Employment Agreements, which are substantially identical, except for compensation, are effective April 20, 2023. Pursuant to the New Employment Agreements, each of these executive officers is provided an annual salary, which annual salary may be increased from time to time, but not reduced, as determined by the Compensation Committee. In addition, each of these executive officers is entitled to participate in the Company’s broad-based benefit plans and certain performance compensation payable under separate MIP as approved by the Company’s Compensation Committee and the Company’s Board (see “Note 14 – Executive Compensation – Management Incentive Plans (“MIPs”)” for a discussion of the individual 2023 MIPs approved for the Company’s executive officers). Each of the New Employment Agreements is effective for three years from April 20, 2023 (the “Initial Term”) unless earlier terminated by the Company or by the executive officer. At the end of the Initial Term of each New Employment Agreement, each New Employment Agreement will automatically be extended for one additional year, unless at least six months prior to the expiration of the Initial Term, the Company or the executive officer provides written notice not to extend the terms of the New Employment Agreement. Pursuant to the New Employment Agreements, if the executive officer’s employment is terminated due to death, disability or for cause (as defined in the agreements), the Company will pay to the executive officer or to his estate an amount equal to the sum of any unpaid base salary and accrued unused vacation time through the date of termination and any benefits due to the executive officer under any employee benefit plan (the “Accrued Amounts”) plus any performance compensation payable pursuant to the MIP with respect to the fiscal year immediately preceding the date of termination. In the event that an executive officer’s employment is terminated due to death, the Company will also pay a lump-sum payment (the “Cash Medical Continuation Benefit”) equal to eighteen times the monthly premium that would be required to be paid, pursuant to the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended (“COBRA”) to continue group health coverage for the executive officer’s eligible covered dependents in effect on the date of the executive officer’s termination of employment, based on the premium for the first month of COBRA coverage. Such cash payment will be taxable and will be made regardless of whether the executive officer’s eligible covered dependents elect COBRA continuation coverage. If the executive officer terminates his employment for “good reason” (as defined in the agreements) or is terminated by the Company without cause (including any such termination for “good reason” or without cause within 24 months after a Change in Control (as defined in the agreements), the Company will pay the executive officer Accrued Amounts, (a) two years of full base salary, plus (b) (i) two times the performance compensation (under the executive officer’s MIP) earned with respect to the fiscal year immediately preceding the date of termination provided the performance compensation earned with respect to the fiscal year immediately preceding the date of termination has not yet been paid, or (ii) if performance compensation earned with respect to the fiscal year immediately preceding the date of termination has already been paid to the executive officer, the executive officer will be paid an additional year of the performance compensation earned with respect to the fiscal year immediately preceding the date of termination, and (c) the Cash Medical Continuation Benefit. If the executive officer terminates his employment for a reason other than for good reason, the Company will pay to the executive officer an amount equal to the Accrued Amounts plus any performance compensation payable pursuant to the MIP applicable to such executive officer. Additionally, in the event of a Change in Control (as defined in the agreements), all outstanding stock options to purchase the common stock held by the executive officer will immediately become exercisable in full commencing on the date of termination through the original term of the options. In the event of the death of an executive officer, all outstanding stock options to purchase common stock held by the executive officer will immediately become exercisable in full commencing on the date of death, with such options exercisable for the lesser of the original option term or twelve months from the date of the executive officer’s death. In the event an executive officer terminates his employment for “good reason” (as defined in the agreements) or is terminated by the Company without cause, all outstanding stock options to purchase common stock held by the officer will immediately become exercisable in full commencing on the date of termination, with such options exercisable for the lesser of the original option term or within 60 days from the date of the executive officer’s date of termination. Severance benefits payable with respect to a termination (other than Accrued Amounts) shall not be payable until the termination constitutes a “separation from service” (as defined under Treasury Regulation Section 1.409A-1(h)).

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2023
Accounting Policies [Abstract]
Recently Issued Accounting Standards – Not Yet Adopted	Recently Issued Accounting Standards – Not Yet Adopted In August 2020, the FASB issued ASU No. 2020-06, “Debt – Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging – Contracts in Entity’s Own Equity.” ASU 2020-06 simplifies the accounting for convertible instruments by removing major separation models and removing certain settlement condition qualifiers for the derivatives scope exception for contracts in an entity’s own equity, and simplifies the related diluted net income per share calculation for both Subtopics. ASU 2020-06 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2023, for the Company as a smaller reporting company. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. The Company is currently evaluating the impact of this ASU on its financial statements and disclosures.

Revenue (Tables)

Revenue (Tables)	3 Months Ended
	Mar. 31, 2023
Revenue from Contract with Customer [Abstract]
Schedule of Disaggregation of Revenue	Schedule of Disaggregation of Revenue Revenue by Contract Type (In thousands) Three Months Ended Three Months Ended March 31, 2023 March 31, 2022 Treatment Services Total Treatment Services Total Fixed price $ 9,594 $ 8,647 $ 18,241 $ 7,479 $ 5,761 $ 13,240 Time and materials — 1,866 1,866 — 2,675 2,675 Total $ 9,594 $ 10,513 $ 20,107 $ 7,479 $ 8,436 $ 15,915 Revenue $ 9,594 $ 10,513 $ 20,107 $ 7,479 $ 8,436 $ 15,915 Revenue by generator (In thousands) Three Months Ended Three Months Ended March 31, 2023 March 31, 2022 Treatment Services Total Treatment Services Total Domestic government $ 7,257 $ 9,718 $ 16,975 $ 5,815 $ 8,245 $ 14,060 Domestic commercial 2,206 597 2,803 1,436 162 1,598 Foreign government 95 177 272 92 6 98 Foreign commercial 36 21 57 136 23 159 Total $ 9,594 $ 10,513 $ 20,107 $ 7,479 $ 8,436 $ 15,915 Revenue $ 9,594 $ 10,513 $ 20,107 $ 7,479 $ 8,436 $ 15,915
Schedule of Contract Liabilities	The timing of revenue recognition and billings results in unbilled receivables (contract assets). The Company’s contract liabilities consist of deferred revenues which represent advance payment from customers in advance of the completion of our performance obligation. The following table represents changes in our contract asset and contract liabilities balances: Schedule of Contract Liabilities Year-to-date Year-to-date (In thousands) March 31, 2023 December 31, 2022 Change ($) Change (%) Contract assets Unbilled receivables - current $ 6,701 $ 6,062 $ 639 10.5 % Contract liabilities Deferred revenue $ 5,003 $ 4,813 $ 190 3.9 %

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2023
Leases
Schedule of Components of Lease Cost	The components of lease cost for the Company’s leases were as follows (in thousands): Schedule of Components of Lease Cost 2023 2022 Three Months Ended March 31, 2023 2022 Operating Lease: Lease cost $ 156 $ 157 Finance Leases: Amortization of ROU assets 38 47 Interst on lease liablity 6 11 Finance leases 44 58 Short-term lease rent expense — 3 Total lease cost $ 200 $ 218
Schedule of Weighted Average Lease	The weighted average remaining lease term and the weighted average discount rate for operating and finance leases at March 31, 2023 were: Schedule of Weighted Average Lease Operating Leases Finance Leases Weighted average remaining lease terms (years) 6.1 3.0 Weighted average discount rate 7.8 % 5.5 % The weighted average remaining lease term and the weighted average discount rate for operating and finance leases at March 31, 2022 were: Operating Leases Finance Leases Weighted average remaining lease terms (years) 6.7 4.0 Weighted average discount rate 7.6 % 6.1 %
Schedule of Operating And Finance Lease Liability Maturity	The following table reconciles the undiscounted cash flows for the operating and finance leases at March 31, 2023 to the operating and finance lease liabilities recorded on the balance sheet (in thousands): Schedule of Operating And Finance Lease Liability Maturity Operating Leases Finance Leases 2023 $ 412 $ 138 2024 416 182 2025 324 160 2026 301 30 2027 286 12 2028 and thereafter 656 2 Total undiscounted lease payments 2,395 524 Less: Imputed interest (501 ) (43 ) Present value of lease payments $ 1,894 $ 481 Current portion of operating lease obligations $ 401 $ — Long-term operating lease obligations, less current portion $ 1,493 $ — Current portion of finance lease obligations $ — $ 161 Long-term finance lease obligations, less current portion $ — $ 320
Schedule of Supplemental Cash Flow And Other Information Related To Leases	Supplemental cash flow and other information related to our leases were as follows (in thousands): Schedule of Supplemental Cash Flow And Other Information Related To Leases 2023 2022 Three Months Ended March 31, 2023 2022 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flow from operating leases $ 144 $ 143 Operating cash flow from finance leases $ 6 $ 11 Financing cash flow from finance leases $ 41 $ 58 ROU assets obtained in exchange for lease obligations for: Finance liabilities $ 50 $ 147

Intangible Assets (Tables)

Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Definite Lived Intangible Assets	The following table summarizes information relating to the Company’s definite-lived intangible assets: Schedule of Definite Lived Intangible Assets March 31, 2023 December 31, 2022 Weighted Average Amortization Gross Net Gross Net Period Carrying Accumulated Carrying Carrying Accumulated Carrying (Years) Amount Amortization Amount Amount Amortization Amount Other Intangibles (amount in thousands) Patent 8.3 $ 697 $ (377 ) $ 320 $ 711 $ (374 ) $ 337 Software 3 647 (484 ) 163 640 (468 ) 172 Customer relationships 10 3,370 (3,286 ) 84 3,370 (3,250 ) 120 Total $ 4,714 $ (4,147 ) $ 567 $ 4,721 $ (4,092 ) $ 629
Schedule of Finite Lived Intangible Assets, Future Amortization Expense	The following table summarizes the expected amortization over the next five years for our definite-lived intangible assets: Schedule of Finite Lived Intangible Assets, Future Amortization Expense Amount Year (In thousands) 2023 (Remaining) $ 140 2024 62 2025 26 2026 25 2027 22

Capital Stock, Stock Plans, W_2

Capital Stock, Stock Plans, Warrants and Stock Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2023
Share-Based Payment Arrangement [Abstract]
Schedule of Share-based Compensation, Allocation of Recognized Period Costs	The following table summarizes stock-based compensation recognized for the three months ended March 31, 2023 and 2022 for our employee and director stock options. Schedule of Share-based Compensation, Allocation of Recognized Period Costs 2023 2022 Stock Options Three Months Ended March 31, 2023 2022 Employee Stock Options $ 86,000 $ 86,000 Director Stock Options 32,000 16,000 Total $ 118,000 $ 102,000
Schedule of Stock Options Roll Forward	The summary of the Company’s total Stock Option Plans as of March 31, 2023 and March 31, 2022, and changes during the periods then ended, are presented below. The Company’s Plans consist of the 2017 Plan and the 2003 Outside Directors Stock Plan (the “2003 Plan”): Schedule of Stock Options Roll Forward Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (years) Aggregate Intrinsic Value (2) Options outstanding January 1, 2023 1,018,400 $ 5.02 - Granted 295,000 $ 3.95 Exercised (44,400 ) $ 3.56 $ 370,196 Forfeited/expired (4,500 ) $ 3.90 Options outstanding end of period (1) 1,264,500 $ 4.83 4.2 $ 8,791,279 Options exercisable at March 31, 2023 (1) 499,500 $ 4.30 2.3 $ 6,047,029 Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (years) Aggregate Intrinsic Value (2) Options outstanding January 1, 2022 1,019,400 $ 4.91 - Granted — — Exercised — — $ — Forfeited/expired — — Options outstanding end of period (1) 1,019,400 $ 4.91 3.8 $ 1,150,167 Options exercisable at March 31, 2022 (1) 455,900 $ 3.92 2.5 $ 779,362 (1) Options with exercise prices ranging from $ 2.79 to $ 7.50 (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.

Loss Per Share (Tables)

Loss Per Share (Tables)	3 Months Ended
	Mar. 31, 2023
Earnings Per Share [Abstract]
Schedule of Earning Per Share	Basic loss per share is calculated based on the weighted-average number of outstanding common shares during the applicable period. Diluted 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 loss earnings per shares. The following table reconciles the loss and average share amounts used to compute both basic and diluted loss per share: Schedule of Earning Per Share (Amounts in Thousands, Except for Per Share Amounts) 2023 2022 Three Months Ended (Unaudited) March 31, (Amounts in Thousands, Except for Per Share Amounts) 2023 2022 Loss per common share from continuing operations Loss from continuing operations, net of taxes $ (318 ) $ (1,249 ) Basic and diluted loss per share $ (.02 ) $ (.09 ) Loss per common share from discontinued operations, net of taxes Loss from discontinued operations, net of taxes $ (93 ) $ (94 ) Basic and diluted loss per share $ (.01 ) $ (.01 ) Net loss per common share Net loss $ (411 ) $ (1,343 ) Basic and diluted loss per share $ (.03 ) $ (.10 ) Weighted average shares outstanding: Basic weighted average shares outstanding 13,358 13,234 Add: dilutive effect of stock options — — Add: dilutive effect of warrants — — Diluted weighted average shares outstanding 13,358 13,234 Potential shares excluded from above weighted average share calculations due to their anti-dilutive effect include: Stock options 335 405 Warrant — — Antidilutive Securities — —

Long Term Debt (Tables)

Long Term Debt (Tables)	3 Months Ended
	Mar. 31, 2023
Debt Disclosure [Abstract]
Schedule of Long Term Debt	Long-term debt consists of the following: Schedule of Long Term Debt (Amounts in Thousands) March 31, 2023 December 31, 2022 Revolving Credit facility dated May 8, 2020, borrowings based upon eligible accounts 2024. Effective interest rate for first quarter of 2023 was 9.7% (1) $ — $ — Revolving Credit facility dated May 8, 2020, borrowings based upon eligible accounts May 15, 2024 Effective interest rate for first quarter of 2023 was 9.7 (1) $ — $ — Term Loan dated May 8, 2020, payable in equal monthly installments of principal, May 15, 2024 Effective interest rate for the first quarter of 2023 was 8.0 (1) 432 (2) 552 (2) Capital Line dated May 4, 2021, payable in equal monthly installments of principal, May 15, 2024 Effective interest rate for the first quarter of 2023 was 8.0 (1) 437 463 Notes Payable to 2023 and 2025, annual interest rate of 5.6 9.1 20 24 Total debt 889 1,039 Less current portion of long-term debt 446 476 Long-term debt $ 443 $ 563 (1) Our revolving credit facility is collateralized by our accounts receivable, and our term loan and capital line are collateralized by our property, plant, and equipment. (2) Net of debt issuance costs of ($ 101,000 88,000

Discontinued Operations (Tables

Discontinued Operations (Tables)	3 Months Ended
	Mar. 31, 2023
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Disposal Groups, Including Discontinued Operation Balance Sheet	The following table presents the major class of assets of discontinued operations as of March 31, 2023 and December 31, 2022. No assets and liabilities were held for sale at each of the periods noted. Schedule of Disposal Groups, Including Discontinued Operation Balance Sheet March 31, December 31, (Amounts in Thousands) 2023 2022 Current assets Other assets $ 19 $ 15 Total current assets 19 15 Long-term assets Property, plant and equipment, net (1) 81 81 Total long-term assets 81 81 Total assets $ 100 $ 96 Current liabilities Accounts payable $ 39 $ 104 Accrued expenses and other liabilities 138 146 Environmental liabilities 112 112 Total current liabilities 289 362 Long-term liabilities Closure liabilities 162 159 Environmental liabilities 749 749 Total long-term liabilities 911 908 Total liabilities $ 1,200 $ 1,270 (1) net of accumulated depreciation of $ 10,000

Operating Segments (Tables)

Operating Segments (Tables)	3 Months Ended
	Mar. 31, 2023
Segment Reporting [Abstract]
Schedule of Segment Reporting Information	The table below presents certain financial information of our operating segments for the three months ended March 31, 2023 and 2022 (in thousands): Schedule of Segment Reporting Information Treatment Services Segments Total Corporate (1) Consolidated Total Segment Reporting for the Quarter Ended March 31, 2023 Treatment Services Segments Total Corporate (1) Consolidated Total Revenue from external customers $ 9,594 $ 10,513 $ 20,107 $ — $ 20,107 Intercompany revenues 204 19 223 — — Gross profit 1,252 1,757 3,009 — 3,009 Research and development 67 3 70 29 99 Interest income — — — 127 127 Interest expense (22 ) (1 ) (23 ) (30 ) (53 ) Interest expense-financing fees — — — (20 ) (20 ) Depreciation and amortization 573 160 733 14 747 Segment income (loss) before income taxes 157 943 1,100 (1,622 ) (522 ) Income tax benefit (174 ) (30 ) (204 ) — (204 ) Segment income (loss) 331 973 1,304 (1,622 ) (318 ) Expenditures for segment assets 748 — 748 — 748 (2) Treatment Services Segments Total Corporate (1) Consolidated Total Segment Reporting for the Quarter Ended March 31, 2022 Treatment Services Segments Total Corporate (1) Consolidated Total Revenue from external customers $ 7,479 $ 8,436 $ 15,915 $ — $ 15,915 Intercompany revenues — — — — — Gross profit 638 998 1,636 — 1,636 Research and development 65 14 79 17 96 Interest income — — — 11 11 Interest expense (14 ) (1 ) (15 ) (20 ) (35 ) Interest expense-financing fees — — — (13 ) (13 ) Depreciation and amortization 371 71 442 14 456 Segment (loss) income before income taxes (481 ) 285 (196 ) (1,726 ) (1,922 ) Income tax benefit (559 ) (114 ) (673 ) — (673 ) Segment income (loss) 78 399 477 (1,726 ) (1,249 ) Expenditures for segment assets 296 49 345 — 345 (2) (1) Amounts reflect the activity for corporate headquarters not included in the segment information. (2) Net of financed amount of $ 50,000 14,000

Schedule of Disaggregation of R

Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 20,107	$ 15,915
Domestic Government [Member]
Disaggregation of Revenue [Line Items]
Revenue	16,975	14,060
Domestic Commercial [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,803	1,598
Foreign Government [Member]
Disaggregation of Revenue [Line Items]
Revenue	272	98
Foreign Commercial [Member]
Disaggregation of Revenue [Line Items]
Revenue	57	159
Fixed Price [Member]
Disaggregation of Revenue [Line Items]
Revenue	18,241	13,240
Time and Materials [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,866	2,675
Treatment [Member]
Disaggregation of Revenue [Line Items]
Revenue	9,594	7,479
Treatment [Member] | Domestic Government [Member]
Disaggregation of Revenue [Line Items]
Revenue	7,257	5,815
Treatment [Member] | Domestic Commercial [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,206	1,436
Treatment [Member] | Foreign Government [Member]
Disaggregation of Revenue [Line Items]
Revenue	95	92
Treatment [Member] | Foreign Commercial [Member]
Disaggregation of Revenue [Line Items]
Revenue	36	136
Treatment [Member] | Fixed Price [Member]
Disaggregation of Revenue [Line Items]
Revenue	9,594	7,479
Treatment [Member] | Time and Materials [Member]
Disaggregation of Revenue [Line Items]
Revenue
Services [Member]
Disaggregation of Revenue [Line Items]
Revenue	10,513	8,436
Services [Member] | Domestic Government [Member]
Disaggregation of Revenue [Line Items]
Revenue	9,718	8,245
Services [Member] | Domestic Commercial [Member]
Disaggregation of Revenue [Line Items]
Revenue	597	162
Services [Member] | Foreign Government [Member]
Disaggregation of Revenue [Line Items]
Revenue	177	6
Services [Member] | Foreign Commercial [Member]
Disaggregation of Revenue [Line Items]
Revenue	21	23
Services [Member] | Fixed Price [Member]
Disaggregation of Revenue [Line Items]
Revenue	8,647	5,761
Services [Member] | Time and Materials [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 1,866	$ 2,675

Schedule of Contract Liabilitie

Schedule of Contract Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unbilled receivables - current	$ 6,701		$ 6,062
Changes in unbilled receivables - current	639	$ (3,720)
Deferred revenue	5,003		$ 4,813
Year-to-date Change [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Changes in unbilled receivables - current	$ 639
Changes in unbilled receivables - current, percentage	10.50%
Changes in deferred revenue	$ 190
Changes in deferred revenue, percentage	3.90%

Revenue (Details Narrative)

Revenue (Details Narrative) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenue from Contract with Customer [Abstract]
Revenue recognized	$ 3,494,000	$ 3,521,000

Schedule of Components of Lease

Schedule of Components of Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Leases
Lease cost	$ 156	$ 157
Amortization of ROU assets	38	47
Interst on lease liablity	6	11
Finance leases	44	58
Short-term lease rent expense		3
Total lease cost	$ 200	$ 218

Schedule of Weighted Average Le

Schedule of Weighted Average Lease (Details)	Mar. 31, 2023	Mar. 31, 2022
Leases
Operating leases, weighted average remaining lease terms (years)	6 years 1 month 6 days	6 years 8 months 12 days
Finance leases, weighted average remaining lease terms (years)	3 years	4 years
Operating leases, weighted average discount rate	7.80%	7.60%
Finance leases, weighted average discount rate	5.50%	6.10%

Schedule of Operating And Finan

Schedule of Operating And Finance Lease Liability Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract]
Operating Leases 2023	$ 412
Operating Leases 2024	416
Operating Leases 2025	324
Operating Leases 2026	301
Operating Leases 2027	286
Operating Leases 2028 and thereafter	656
Operating Leases Total undiscounted lease payments	2,395
Operating Leases Less: Imputed interest	(501)
Operating Leases Present value of lease payments	1,894
Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract]
Finance Leases 2023	138
Finance Leases 2024	182
Finance Leases 2025	160
Finance Leases 2026	30
Finance Leases 2027	12
Finance Leases 2028 and thereafter	2
Finance Leases Total undiscounted lease payments	524
Finance Leases Less: Imputed interest	(43)
Finance Leases Present value of lease payments	481
Current portion of operating lease obligations	401	$ 416
Long-term operating lease obligations, less current portion	1,493	1,584
Current portion of finance lease obligations	161	154
Long-term finance lease obligations, less current portion	$ 320	$ 318

Schedule of Supplemental Cash F

Schedule of Supplemental Cash Flow And Other Information Related To Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Leases
Operating cash flow from operating leases	$ 144	$ 143
Operating cash flow from finance leases	6	11
Financing cash flow from finance leases	41	58
Finance liabilities	$ 50	$ 147

Schedule of Definite Lived Inta

Schedule of Definite Lived Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 4,714	$ 4,721
Accumulated Amortization	(4,147)	(4,092)
Net Carrying Amount	$ 567	629
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (Years)	8 years 3 months 18 days
Gross Carrying Amount	$ 697	711
Accumulated Amortization	(377)	(374)
Net Carrying Amount	$ 320	337
Software [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (Years)	3 years
Gross Carrying Amount	$ 647	640
Accumulated Amortization	(484)	(468)
Net Carrying Amount	$ 163	172
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (Years)	10 years
Gross Carrying Amount	$ 3,370	3,370
Accumulated Amortization	(3,286)	(3,250)
Net Carrying Amount	$ 84	$ 120

Schedule of Finite Lived Intang

Schedule of Finite Lived Intangible Assets, Future Amortization Expense (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2023 (Remaining)	$ 140
2024	62
2025	26
2026	25
2027	$ 22

Intangible Assets (Details Narr

Intangible Assets (Details Narrative) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible asset	$ 55,000	$ 56,000

Schedule of Share-based Compens

Schedule of Share-based Compensation, Allocation of Recognized Period Costs (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total	$ 118,000	$ 102,000
Share-Based Payment Arrangement, Option [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total	86,000	86,000
Director Stock Options [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total	$ 32,000	$ 16,000

Schedule of Stock Options Roll

Schedule of Stock Options Roll Forward (Details) - Equity Option [Member] - USD ($)		3 Months Ended
		Mar. 31, 2023		Mar. 31, 2022
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]
Shares Options Outstanding Beginning		1,018,400		1,019,400
Weighted Average Exercise Price Options Outstanding Beginning		$ 5.02		$ 4.91
Aggregate Intrinsic Value Options Exercisable	[1]
Shares Options Granted		295,000
Weighted Average Exercise Price Options Granted		$ 3.95
Shares Options Exercised		(44,400)
Weighted Average Exercise Price Options Exercised		$ 3.56
Aggregate Intrinsic Value Options Exercised	[1]	$ 370,196
Shares Options Forfeited/expired		(4,500)
Weighted Average Exercise Price Options Forfeited/expired		$ 3.90
Shares Options Outstanding Ending	[2]	1,264,500		1,019,400
Weighted Average Exercise Price Options Outstanding Ending	[2]	$ 4.83		$ 4.91
Weighted Average Remaining Contractual Term (years) Outstanding	[2]	4 years 2 months 12 days		3 years 9 months 18 days
Aggregate Intrinsic Value Options Outstanding	[1],[2]	$ 8,791,279		$ 1,150,167
Shares Options Exercisable		499,500	[2]	455,900	[1]
Weighted Average Exercise Price Options Exercisable		$ 4.30	[2]	$ 3.92	[1]
Weighted Average Remaining Contractual Term (years) Exercisable		2 years 3 months 18 days	[2]	2 years 6 months	[1]
Aggregate Intrinsic Value Options Exercisable	[1],[2]	$ 6,047,029		$ 779,362
[1]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.[2]Options with exercise prices ranging from $ 2.79

Schedule of Stock Options Rol_2

Schedule of Stock Options Roll Forward (Details) (Parenthetical) - Stock Option Outstanding [Member]	3 Months Ended
	Mar. 31, 2023 $ / shares
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]
Share-based payment arrangement, option, exercise price range, lower range limit	$ 2.79
Share-based payment arrangement, option, exercise price range, upper range limit	$ 7.50

Capital Stock, Stock Plans, W_3

Capital Stock, Stock Plans, Warrants and Stock Based Compensation (Details Narrative) - USD ($)					1 Months Ended	3 Months Ended
	Jan. 19, 2023	Dec. 31, 2022	Apr. 02, 2019	Jul. 27, 2017	May 31, 2018	Mar. 31, 2023	Mar. 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Proceeds from stock options exercised						$ 7,000
Common Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock options, exercise price						$ 3.60
Issuance of common stock upon exercise of options (cashless), shares						29,319
Number of stock option purchased						42,000
Ferguson Stock Option [Member] | Second Milestone [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options to purchase shares				30,000
Ferguson Stock Option [Member] | Third Milestone [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options to purchase shares				60,000
Share-Based Payment Arrangement, Option [Member] | Common Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock options, exercise price						$ 2.785
Issuance of common stock upon exercise of options (cashless), shares						2,400
Number of stock option purchased						2,400
Proceeds from stock options exercised						$ 6,700
Robert Ferguson [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Issuance of common stock upon exercise of options (cashless), shares					10,000
Number of shares forfeited		30,000
Unrecognized compensation cost related to unvested options consultant						$ 502,000
Remaining stock option						60,000
Loans payable			$ 2,500,000
Warrant to purchase			60,000
Warrants exercise price			$ 3.51
Warrant exercisable, description			The warrant expires on April 1, 2024 and remains outstanding at March 31, 2023. Upon Mr. Ferguson’s death, the warrant is now held by Mr. Ferguson’s personal representative and/or beneficiary. The Ferguson Loan was paid-in-full in December 2020
Employee and Directors [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized compensation cost related to unvested options consultant						$ 1,769,000
Weighted average term for unrecognized and unvested option to be recognized						3 years 9 months 18 days
2017 Stock Option Plan [Member] | Consultant [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of stock option shares granted				100,000
Stock options, exercise price				$ 3.65
2003 Outside Directors Stock Option Plan [Member] | Common Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Issuance of common stock for services, shares						33,319
Allocated share-based compensation expense						$ 120,000
Incentive Stock Option Agreement [Member] | 2017 Stock Option Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of stock option shares granted	295,000
Weighted average contractual term (years) outstanding	6 years
Vesting, description	one-fifth yearly vesting over a five-year period
Stock options, exercise price	$ 3.95
Incentive Stock Option Agreement [Member] | 2017 Stock Option Plan [Member] | Chief Executive Officer [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of stock option shares granted	70,000
Incentive Stock Option Agreement [Member] | 2017 Stock Option Plan [Member] | Chief Financial Officer [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of stock option shares granted	40,000
Incentive Stock Option Agreement [Member] | 2017 Stock Option Plan [Member] | EVP of Strategic Initiatives [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of stock option shares granted	30,000
Incentive Stock Option Agreement [Member] | 2017 Stock Option Plan [Member] | EVP of Waste Treatment Operations [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of stock option shares granted	30,000
Incentive Stock Option Agreement [Member] | 2017 Stock Option Plan [Member] | EVP of Nuclear and Technical Services [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of stock option shares granted	30,000

Schedule of Earning Per Share (

Schedule of Earning Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Loss per common share from continuing operations
Loss from continuing operations, net of taxes	$ (318,000)	$ (1,249,000)
Basic and diluted loss per share	$ (0.02)	$ (0.09)
Loss per common share from discontinued operations, net of taxes
Loss from discontinued operations, net of taxes	$ (93,000)	$ (94,000)
Basic and diluted loss per share	$ (0.01)	$ (0.01)
Net loss per common share
Net loss	$ (411,000)	$ (1,343,000)
Basic and diluted loss per share	$ (0.03)	$ (0.10)
Weighted average shares outstanding:
Basic weighted average shares outstanding	13,358	13,234
Add: dilutive effect of stock options
Add: dilutive effect of warrants
Diluted weighted average shares outstanding	13,358	13,234
Share-Based Payment Arrangement, Option [Member]
Potential shares excluded from above weighted average share calculations due to their anti-dilutive effect include:
Antidilutive Securities	335	405
Warrant [Member]
Potential shares excluded from above weighted average share calculations due to their anti-dilutive effect include:
Antidilutive Securities

Schedule of Long Term Debt (Det

Schedule of Long Term Debt (Details) - USD ($) $ in Thousands		Mar. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Total debt		$ 889	$ 1,039
Less current portion of long-term debt		446	476
Long-term debt		443	563
Revolving Credit [Member]
Debt Instrument [Line Items]
Total debt	[1]
Term Loan [Member]
Debt Instrument [Line Items]
Total debt	[1],[2]	432	552
Captail Line [Member]
Debt Instrument [Line Items]
Total debt	[1]	437	463
Note Payable [Member]
Debt Instrument [Line Items]
Total debt		$ 20	$ 24
[1]Our revolving credit facility is collateralized by our accounts receivable, and our term loan and capital line are collateralized by our property, plant, and equipment.[2]Net of debt issuance costs of ($ 101,000 88,000

Schedule of Long Term Debt (D_2

Schedule of Long Term Debt (Details) (Parenthetical) - USD ($)	May 04, 2021	May 08, 2020	Mar. 31, 2023	Dec. 31, 2022
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Debt issuance costs, net			$ 101,000	$ 88,000
Revolving Credit [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Debt due date		May 15, 2024
Effective interest rate			9.70%
Term Loan [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Debt due date		May 15, 2024
Effective interest rate			8%
Capital Line [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Debt due date	May 15, 2024
Effective interest rate			8%
Note Payable [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Effective interest rate			5.60%	9.10%

Long Term Debt (Details Narrati

Long Term Debt (Details Narrative) - USD ($)			3 Months Ended
	May 04, 2021	May 08, 2020	Mar. 31, 2023	Mar. 21, 2023	Dec. 31, 2022
Line of Credit Facility [Line Items]
Long term debt			$ 889,000		$ 1,039,000
Line of credit facility, current borrowing capacity	$ 1,000,000
Debt instrument, interest rate description			Pursuant to the Loan Agreement, as amended, payment of annual rate of interest due on the revolving credit is at prime (8.00% at March 31, 2023) plus 2% or Term Secured Overnight Finance Rate (“SOFR”) (as defined in the Loan Agreement, as amended) plus 3.00% plus an SOFR Adjustment applicable for an interest period selected by the Company and payment of annual rate of interest due on the term loan and the capital loan is at prime plus 2.50% or Term SOFR Rate plus 3.50% plus an SOFR Adjustment applicable for an interest period selected by the Company. A SOFR Adjustment rates of 0.10% and 0.15% are applicable for a one-month interest period and three-month period, respectively, that may be selected by the Company
Letters of credit outstanding, amount			$ 3,016,000
Amended Loan Agreement [Member] | Lender [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Description			reinstates the quarterly FCCR testing requirement starting in the second quarter of 2023 using a trailing twelve-month period (with no change to the minimum 1.15:1 ratio requirement for each quarter);
Revised Loan Agreement [Member] | Lender [Member]
Line of Credit Facility [Line Items]
Debt instrument, fee amount				$ 25,000
Term Loan [Member] | PNC Bank [Member] | Loan Agreement [Member]
Line of Credit Facility [Line Items]
Long term debt		$ 1,742,000
Debt instrument periodic payment		35,547
Captail Line [Member] | PNC Bank [Member]
Line of Credit Facility [Line Items]
Long term debt	524,000
Debt instrument periodic payment	$ 8,700
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit facility, remaining borrowing capacity			$ 7,133,000
Letters of credit outstanding, amount			3,016,000
Revolving Credit Facility [Member] | Lender [Member]
Line of Credit Facility [Line Items]
Line of credit facility, current borrowing capacity			$ 3,000,000	3,000,000
Revolving Credit Facility [Member] | PNC Bank [Member] | Loan Agreement [Member]
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity				12,500,000
Revolving Credit Facility [Member] | PNC Bank [Member] | Previous Loan Agreement [Member]
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 18,000,000		18,000,000
Revolving Credit Facility [Member] | Revised Loan Agreement [Member] | PNC Bank [Member]
Line of Credit Facility [Line Items]
Debt instrument maturity date		May 15, 2024
Line of credit facility, maximum borrowing capacity				$ 12,500,000

Commitments and Contingencies (

Commitments and Contingencies (Details Narrative)	1 Months Ended	3 Months Ended			12 Months Ended
	Jun. 30, 2003	Mar. 31, 2023 USD ($)	Mar. 31, 2023 CAD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Self-insured retention		$ 100,000
Accounts receivable, after allowance for credit loss, current		10,881,000			$ 9,364,000
Restricted cash, noncurrent		11,637,000			11,570,000
Interest income		127,000		$ 11,000
Letters of credit outstanding, amount		3,016,000
Bond outstanding		27,321,000
American International Group, Inc [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Period of finite risk insurance policy	25 years
Maximum allowable coverage of insurance policy		28,177,000
Coverage amount under the policy		22,454,000
Interest income		$ 67,000		$ 11,000
Insurers obligation to entity on termination of contract		100%
American International Group, Inc [Member] | 2003 Closure Policy [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Restricted cash, noncurrent		$ 11,637,000			11,570,000
Interest income		2,166,000			$ 2,099,000
Canadian Nuclear Laboratories LTD [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Unpaid receivables		1,855,000
Accounts receivable, after allowance for credit loss, current		$ 1,061,000
Bond securing amount			$ 1,900,000

Schedule of Disposal Groups, In

Schedule of Disposal Groups, Including Discontinued Operation Balance Sheet (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
		Mar. 31, 2023	Dec. 31, 2022
Current assets
Other assets		$ 19	$ 15
Total current assets		19	15
Long-term assets
Property, plant and equipment, net	[1]	81	81
Total long-term assets		81	81
Total assets		100	96
Current liabilities
Accounts payable		39	104
Accrued expenses and other liabilities		138	146
Environmental liabilities		112	112
Total current liabilities		289	362
Long-term liabilities
Closure liabilities		162	159
Environmental liabilities		749	749
Total long-term liabilities		911	908
Total liabilities		1,200	1,270
Accumulated depreciation		$ 10,000	$ 10,000
[1]net of accumulated depreciation of $ 10,000

Discontinued Operations (Detail

Discontinued Operations (Details Narrative) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Discontinued Operations and Disposal Groups [Abstract]
Loss from discontinued operations (net of taxes)	$ 93,000	$ 94,000
Net of tax benefit	$ 30,000	$ 63,000

Schedule of Segment Reporting I

Schedule of Segment Reporting Information (Details) - USD ($)		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Revenue from external customers		$ 20,107,000	$ 15,915,000
Intercompany revenues
Gross profit		3,009,000	1,636,000
Research and development		99,000	96,000
Interest income		127,000	11,000
Interest expense		(53,000)	(35,000)
Interest expense-financing fees		(20,000)	(13,000)
Depreciation and amortization		747,000	456,000
Segment (loss) income before income taxes		(522,000)	(1,922,000)
Income tax benefit		(204,000)	(673,000)
Segment income (loss)		(318,000)	(1,249,000)
Expenditures for segment assets	[1]	748,000	345,000
Treatment [Member]
Segment Reporting Information [Line Items]
Revenue from external customers		9,594,000	7,479,000
Intercompany revenues		204,000
Gross profit		1,252,000	638,000
Research and development		67,000	65,000
Interest income
Interest expense		(22,000)	(14,000)
Interest expense-financing fees
Depreciation and amortization		573,000	371,000
Segment (loss) income before income taxes		157,000	(481,000)
Income tax benefit		(174,000)	(559,000)
Segment income (loss)		331,000	78,000
Expenditures for segment assets		748,000	296,000
Services [Member]
Segment Reporting Information [Line Items]
Revenue from external customers		10,513,000	8,436,000
Intercompany revenues		19,000
Gross profit		1,757,000	998,000
Research and development		3,000	14,000
Interest income
Interest expense		(1,000)	(1,000)
Interest expense-financing fees
Depreciation and amortization		160,000	71,000
Segment (loss) income before income taxes		943,000	285,000
Income tax benefit		(30,000)	(114,000)
Segment income (loss)		973,000	399,000
Expenditures for segment assets			49,000
Segments Total [Member]
Segment Reporting Information [Line Items]
Revenue from external customers		20,107,000	15,915,000
Intercompany revenues		223,000
Gross profit		3,009,000	1,636,000
Research and development		70,000	79,000
Interest income
Interest expense		(23,000)	(15,000)
Interest expense-financing fees
Depreciation and amortization		733,000	442,000
Segment (loss) income before income taxes		1,100,000	(196,000)
Income tax benefit		(204,000)	(673,000)
Segment income (loss)		1,304,000	477,000
Expenditures for segment assets		748,000	345,000
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	[2]
Intercompany revenues	[2]
Gross profit	[2]
Research and development	[2]	29,000	17,000
Interest income	[2]	127,000	11,000
Interest expense	[2]	(30,000)	(20,000)
Interest expense-financing fees	[2]	(20,000)	(13,000)
Depreciation and amortization	[2]	14,000	14,000
Segment (loss) income before income taxes	[2]	(1,622,000)	(1,726,000)
Income tax benefit	[2]
Segment income (loss)	[2]	(1,622,000)	(1,726,000)
Expenditures for segment assets	[2]
[1]Net of financed amount of $ 50,000 14,000

Schedule of Segment Reporting_2

Schedule of Segment Reporting Information (Details) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting [Abstract]
Financed portion amount in the purchase of capital expenditure	$ 50,000	$ 14,000

Income Taxes (Details Narrative

Income Taxes (Details Narrative) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Income tax benefit	$ 204,000	$ 673,000
Effective income tax rates	39.10%	35%

Employee Retention Credit (_E_2

Employee Retention Credit (“ERC”) (Details Narrative) - USD ($)		3 Months Ended
	Mar. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Sep. 30, 2021
Employee retention credits, description			Company’s share of certain payroll taxes equal to 70% of the qualified wages paid to employees between July 1, 2021 and September 30, 2021. Qualified wages were limited to $10,000 per employee per calendar quarter in 2021 for a maximum allowable ERC per employee of $7,000 per calendar quarter in 2021. For purposes of the amended ERC, an eligible employer is defined as having experienced a significant (20% or more) decline in gross receipts during one or more of the first three 2021 calendar quarters when compared to 2019
Employer shares percentage				70%
Qualified wages limitation under the ERC program				$ 10,000
Maximum ERC per employee				$ 7,000
Interest income	$ 60,000
Other Nonoperating Income (Expense) [Member]
Non-operating income	$ 1,975,000	$ 2,035,000	$ 1,975,000

Executive Compensation (Details

Executive Compensation (Details Narrative)	Jan. 19, 2023 USD ($)
Chief Executive Officer [Member]
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Compensation arrangement with individual, cash awards, minimum, percentage	25%
Compensation arrangement with individual, cash awards, maximum, percentage	150%
Compensation arrangement with individual, cash awards, minimum, amount	$ 93,717
Compensation arrangement with individual, cash awards, maximum, amount	$ 562,305
Chief Financial Officer [Member]
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Compensation arrangement with individual, cash awards, minimum, percentage	25%
Compensation arrangement with individual, cash awards, maximum, percentage	100%
Compensation arrangement with individual, cash awards, minimum, amount	$ 76,193
Compensation arrangement with individual, cash awards, maximum, amount	$ 304,772
EVP of Strategic Initiatives [Member]
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Compensation arrangement with individual, cash awards, minimum, percentage	25%
Compensation arrangement with individual, cash awards, maximum, percentage	100%
Compensation arrangement with individual, cash awards, minimum, amount	$ 63,495
Compensation arrangement with individual, cash awards, maximum, amount	$ 253,980
EVP of Nuclear and Technical Services [Member]
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Compensation arrangement with individual, cash awards, minimum, percentage	25%
Compensation arrangement with individual, cash awards, maximum, percentage	100%
Compensation arrangement with individual, cash awards, minimum, amount	$ 76,193
Compensation arrangement with individual, cash awards, maximum, amount	$ 304,772
EVP of Waste Treatment Operations [Member]
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Compensation arrangement with individual, cash awards, minimum, percentage	25%
Compensation arrangement with individual, cash awards, maximum, percentage	100%
Compensation arrangement with individual, cash awards, minimum, amount	$ 65,308
Compensation arrangement with individual, cash awards, maximum, amount	$ 261,233