NOS4-1 (WLMSQ) 10-Q 17 Nov 21 2021 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2021	Nov. 05, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	001-16501
Entity Registrant Name	Williams Industrial Services Group Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	73-1541378
Entity Address, Address Line One	100 Crescent Centre Parkway
Entity Address, Address Line Two	Suite 1240
Entity Address, City or Town	Tucker
Entity Address, State or Province	GA
Entity Address, Postal Zip Code	30084
City Area Code	770
Local Phone Number	879-4400
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	WLMS
Security Exchange Name	NYSEAMER
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		25,915,502
Entity Central Index Key	0001136294
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Amendment Flag	false

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 2,556	$ 8,716
Restricted cash	468	468
Accounts receivable, net of allowance of $228 and $351, respectively	39,489	27,549
Contract assets	12,811	7,969
Other current assets	11,526	6,457
Total current assets	66,850	51,159
Property, plant and equipment, net	709	309
Goodwill	35,400	35,400
Intangible assets	12,500	12,500
Other long-term assets	5,687	5,712
Total assets	121,146	105,080
Current liabilities:
Accounts payable	8,439	6,210
Accrued compensation and benefits	19,856	15,800
Contract liabilities	2,494	2,529
Short-term borrowings	4,672	352
Current portion of long-term debt	1,050	1,050
Other current liabilities	10,711	7,170
Current liabilities of discontinued operations	188	342
Total current liabilities	47,410	33,453
Long-term debt, net	30,428	30,728
Deferred tax liabilities	2,136	2,440
Other long-term liabilities	1,828	2,098
Long-term liabilities of discontinued operations	4,201	4,466
Total liabilities	86,003	73,185
Commitments and contingencies (Note 10)
Stockholders' equity:
Common stock, $0.01 par value, 170,000,000 shares authorized and 26,384,670 and 25,926,333 shares issued, respectively, and 25,915,502 and 25,336,442 shares outstanding, respectively	260	256
Paid-in capital	91,670	90,292
Accumulated other comprehensive income (loss)	(36)	28
Accumulated deficit	(56,745)	(58,673)
Treasury stock, at par (469,168 and 589,891 common shares, respectively)	(6)	(8)
Total stockholders' equity	35,143	31,895
Total liabilities and stockholders' equity	$ 121,146	$ 105,080

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
CONDENSED CONSOLIDATED BALANCE SHEETS
Accounts receivable allowance for doubtful accounts	$ 228	$ 351
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	170,000,000	170,000,000
Common stock, shares issued	26,384,670	25,926,333
Common stock, shares outstanding	25,915,502	25,336,442
Treasury stock at par	469,168	589,891

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Revenue	$ 73,351	$ 66,240	$ 225,773	$ 204,936
Cost of revenue	66,590	57,582	203,561	180,014
Gross profit	6,761	8,658	22,212	24,922
Operating expenses
Selling and marketing expenses	267	123	709	401
General and administrative expenses	4,248	5,827	16,931	17,413
Depreciation and amortization expense	50	46	137	144
Total operating expenses	4,565	5,996	17,777	17,958
Operating income	2,196	2,662	4,435	6,964
Interest expense, net
Interest expense, net	1,227	1,541	3,733	4,640
Other (income) expense, net	181	(316)	(1,411)	(937)
Total other expense, net	1,408	1,225	2,322	3,703
Income from continuing operations before income tax	788	1,437	2,113	3,261
Income tax (benefit) expense	(6)	321	256	565
Income from continuing operations	794	1,116	1,857	2,696
Discontinued operations:
Income (loss) from discontinued operations before income tax	(34)	(66)	130	(222)
Income tax (benefit) expense	22	24	59	(56)
Income (loss) from discontinued operations	(56)	(90)	71	(166)
Net income	$ 738	$ 1,026	$ 1,928	$ 2,530
Basic earnings per common share
Income from continuing operations	$ 0.03	$ 0.04	$ 0.07	$ 0.12
Income (loss) from discontinued operations	0	0	0	(0.01)
Basic earnings per common share	0.03	0.04	0.07	0.11
Diluted earnings per common share
Income from continuing operations	0.03	0.04	0.07	0.11
Income (loss) from discontinued operations	0	0	0	0
Diluted earnings per common share	$ 0.03	$ 0.04	$ 0.07	$ 0.11

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 738	$ 1,026	$ 1,928	$ 2,530
Foreign currency translation adjustment	(98)	(34)	(64)	(288)
Comprehensive income	$ 640	$ 992	$ 1,864	$ 2,242

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Treasury Shares	Total
Balance, Beginning at Dec. 31, 2019	$ 198	$ 81,964	$ 222	$ (60,211)	$ (9)	$ 22,164
Balance, Beginning (in shares) at Dec. 31, 2019	19,794,270				(737,075)
Increase (Decrease) in Shareholders' Equity
Issuance of common stock	$ 54	6,478				6,532
Issuance of common stock (in shares)	5,384,615
Issuance of restricted stock units					$ 1	1
Issuance of restricted stock units (in shares)	423,341				80,207
Tax withholding on restricted stock units		(65)				(65)
Tax withholding on restricted stock units(in shares)					(41,445)
Stock-based compensation		376				376
Foreign currency translation			(258)			(258)
Net income (loss)				(1,001)		(1,001)
Balance, Ending at Mar. 31, 2020	$ 252	88,753	(36)	(61,212)	$ (8)	27,749
Balance, Ending (in shares) at Mar. 31, 2020	25,602,226				(698,313)
Balance, Beginning at Dec. 31, 2019	$ 198	81,964	222	(60,211)	$ (9)	22,164
Balance, Beginning (in shares) at Dec. 31, 2019	19,794,270				(737,075)
Increase (Decrease) in Shareholders' Equity
Net income (loss)						2,530
Balance, Ending at Sep. 30, 2020	$ 256	89,582	(66)	(57,681)	$ (8)	32,083
Balance, Ending (in shares) at Sep. 30, 2020	25,926,333				(589,891)
Balance, Beginning at Mar. 31, 2020	$ 252	88,753	(36)	(61,212)	$ (8)	27,749
Balance, Beginning (in shares) at Mar. 31, 2020	25,602,226				(698,313)
Increase (Decrease) in Shareholders' Equity
Issuance of common stock	$ 4	(48)				(44)
Issuance of restricted stock units					$ 1	1
Issuance of restricted stock units (in shares)	407,315				138,221
Tax withholding on restricted stock units		(153)			$ (1)	(154)
Tax withholding on restricted stock units(in shares)	(93,234)				(31,570)
Stock-based compensation		650				650
Foreign currency translation			4			4
Net income (loss)				2,505		2,505
Balance, Ending at Jun. 30, 2020	$ 256	89,202	(32)	(58,707)	$ (8)	30,711
Balance, Ending (in shares) at Jun. 30, 2020	25,916,307				(591,662)
Increase (Decrease) in Shareholders' Equity
Issuance of restricted stock units (in shares)	10,026				4,788
Tax withholding on restricted stock units		(9)				(9)
Tax withholding on restricted stock units(in shares)					(3,017)
Stock-based compensation		389				389
Foreign currency translation			(34)			(34)
Net income (loss)				1,026		1,026
Balance, Ending at Sep. 30, 2020	$ 256	89,582	(66)	(57,681)	$ (8)	32,083
Balance, Ending (in shares) at Sep. 30, 2020	25,926,333				(589,891)
Balance, Beginning at Dec. 31, 2020	$ 256	90,292	28	(58,673)	$ (8)	$ 31,895
Balance, Beginning (in shares) at Dec. 31, 2020	25,926,333				(589,891)	25,926,333
Increase (Decrease) in Shareholders' Equity
Issuance of restricted stock units	$ 4				$ 2	$ 6
Issuance of restricted stock units (in shares)	438,836				120,723
Tax withholding on restricted stock units		(545)				(545)
Stock-based compensation		625				625
Foreign currency translation			4			4
Net income (loss)				(1,681)		(1,681)
Balance, Ending at Mar. 31, 2021	$ 260	90,372	32	(60,354)	$ (6)	30,304
Balance, Ending (in shares) at Mar. 31, 2021	26,365,169				(469,168)
Balance, Beginning at Dec. 31, 2020	$ 256	90,292	28	(58,673)	$ (8)	$ 31,895
Balance, Beginning (in shares) at Dec. 31, 2020	25,926,333				(589,891)	25,926,333
Increase (Decrease) in Shareholders' Equity
Net income (loss)						$ 1,928
Balance, Ending at Sep. 30, 2021	$ 260	91,670	(36)	(56,745)	$ (6)	$ 35,143
Balance, Ending (in shares) at Sep. 30, 2021	26,384,670				(469,168)	26,384,670
Balance, Beginning at Mar. 31, 2021	$ 260	90,372	32	(60,354)	$ (6)	$ 30,304
Balance, Beginning (in shares) at Mar. 31, 2021	26,365,169				(469,168)
Increase (Decrease) in Shareholders' Equity
Issuance of restricted stock units (in shares)	19,501
Stock-based compensation		424				424
Foreign currency translation			30			30
Net income (loss)				2,871		2,871
Balance, Ending at Jun. 30, 2021	$ 260	90,836	62	(57,483)	$ (6)	33,669
Balance, Ending (in shares) at Jun. 30, 2021	26,384,670				(469,168)
Increase (Decrease) in Shareholders' Equity
Correction and adjustment of tax withholding on restricted stock units		40				40
Stock-based compensation		834				834
Foreign currency translation			(98)			(98)
Net income (loss)				738		738
Balance, Ending at Sep. 30, 2021	$ 260	$ 91,670	$ (36)	$ (56,745)	$ (6)	$ 35,143
Balance, Ending (in shares) at Sep. 30, 2021	26,384,670				(469,168)	26,384,670

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Operating activities:
Net income	$ 1,928	$ 2,530
Adjustments to reconcile net income to net cash used in operating activities:
Net (income) loss from discontinued operations	(71)	166
Deferred income tax provision (benefit)	(304)	55
Depreciation and amortization on plant, property and equipment	137	144
Amortization of deferred financing costs	623	546
Amortization of debt discount	150
Gain on disposals of property, plant and equipment		(136)
Bad debt expense	(123)	19
Stock-based compensation	2,579	1,703
Changes in operating assets and liabilities, net of businesses sold:
Accounts receivable	(11,896)	(6,530)
Contract assets	(4,824)	(1,553)
Other current assets	(5,113)	(3,684)
Other assets	(214)	1,619
Accounts payable	2,121	(8,914)
Accrued and other liabilities	6,628	7,290
Contract liabilities	(39)	706
Net cash used in operating activities, continuing operations	(8,418)	(6,039)
Net cash used in operating activities, discontinued operations	(348)	(189)
Net cash used in operating activities	(8,766)	(6,228)
Investing activities:
Purchase of property, plant and equipment	(537)	(88)
Net cash used in investing activities	(537)	(88)
Financing activities:
Repurchase of stock-based awards for payment of statutory taxes due on stock-based compensation	(501)	(227)
Proceeds from issuance of common stock		6,488
Debt issuance costs		(325)
Proceeds from short-term borrowings	208,421	172,616
Repayments of short-term borrowings	(204,101)	(175,158)
Repayments of long-term debt	(788)	(350)
Net cash provided by financing activities	3,031	3,044
Effect of exchange rate changes on cash	112	(80)
Net change in cash, cash equivalents and restricted cash	(6,160)	(3,352)
Cash, cash equivalents and restricted cash, beginning of period	9,184	7,818
Cash, cash equivalents and restricted cash, end of period	3,024	4,466
Supplemental Disclosures:
Cash paid for interest	2,781	2,900
Cash paid for income taxes, net of refunds	$ 1,841
Noncash amendment fee related to revolving credit facility		$ 150

BUSINESS AND BASIS OF PRESENTAT

BUSINESS AND BASIS OF PRESENTATION	9 Months Ended
	Sep. 30, 2021
BUSINESS AND BASIS OF PRESENTATION ORGANIZATION
BUSINESS AND BASIS OF PRESENTATION	NOTE 1—BUSINESS AND BASIS OF PRESENTATION Business Williams Industrial Services Group Inc. (together with its wholly owned subsidiaries, “Williams,” the “Company,” “we,” “us” or “our,” unless the context indicates otherwise) was initially formed in 1998 as GEEG Holdings, LLC, a Delaware limited liability company, and in 2001, changed its name to “Global Power Equipment Group Inc.,” a Delaware corporation and became the successor to GEEG Holdings, LLC. Effective June 29, 2018, the Company changed its name to Williams Industrial Services Group Inc. to better align its name with the Williams business, and the Company’s stock now trades on the NYSE American LLC under the ticker symbol “WLMS.” Williams has been safely helping plant owners and operators enhance asset value for more than 50 years. It provides a broad range of construction, maintenance, and support services to infrastructure customers in energy, power, and industrial end markets. The Company’s mission is to be the preferred provider of construction, maintenance, and specialty services through commitment to superior safety performance, focus on innovation, and dedication to delivering unsurpassed value to its customers. Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) on a basis consistent with that used in the Annual Report on Form 10-K for the year ended December 31, 2020, filed by the Company with the U.S. Securities and Exchange Commission (“SEC”) on March 31, 2021 (the “2020 Report”). In the opinion of management, the unaudited condensed consolidated financial statements reflect all adjustments, including all normal recurring adjustments, necessary to present fairly the unaudited condensed consolidated balance sheets and statements of operations, comprehensive income, stockholders’ equity and cash flows for the periods indicated. All significant intercompany transactions have been eliminated. The December 31, 2020 unaudited condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by GAAP. These unaudited condensed consolidated interim financial statements and accompanying notes should be read in conjunction with the audited consolidated financial statements and accompanying notes included in the 2020 Report. Accounting measurements at interim dates inherently involve greater reliance on estimates than at year-end. The results of operations for any interim period are not necessarily indicative of operations to be expected for the full year. The Company reports on a fiscal quarter basis utilizing a “modified” 4-4-5 calendar (modified in that the fiscal year always begins on January 1 and ends on December 31). However, the Company has continued to label its quarterly information using a calendar convention. The effects of this practice are modest and only exist when comparing interim period results. The reporting periods and corresponding fiscal interim periods are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Reporting Interim Period ​ Fiscal Interim Period ​ 2021 2020 Three Months Ended March 31 ​ January 1, 2021 to April 4, 2021 ​ January 1, 2020 to March 29, 2020 Three Months Ended June 30 ​ April 5, 2021 to July 4, 2021 ​ March 30, 2020 to June 28, 2020 Three Months Ended September 30 ​ July 5, 2021 to October 3, 2021 ​ June 29, 2020 to September 27, 2020

RECENT ACCOUNTING PRONOUNCEMENT

RECENT ACCOUNTING PRONOUNCEMENTS	9 Months Ended
	Sep. 30, 2021
RECENT ACCOUNTING PRONOUNCEMENTS
RECENT ACCOUNTING PRONOUNCEMENTS	NOTE 2—RECENT ACCOUNTING PRONOUNCEMENTS Recently Adopted Accounting Pronouncements In December 2019, the Financial Accounting Standards Board issued Accounting Standards Update (“ASU”) 2019-12, “Income Taxes”, which simplifies the accounting for income taxes by removing certain exceptions for investments, intraperiod allocations and interim calculations, and adding guidance to reduce complexity in accounting for income taxes. The update is effective for annual periods beginning after December 15, 2020, and interim periods within those fiscal years. Early adoption is permitted. The Company historically did not rely on the exceptions in computing the tax provision. The Company adopted the guidance as of January 1, 2021. The adoption of ASU 2019-12 did not have a material impact on the Company's financial statements.

LEASES

LEASES	9 Months Ended
	Sep. 30, 2021
LEASES
LEASES	NOTE 3—LEASES The Company primarily leases office space and related equipment, as well as equipment, modular units and vehicles directly used in providing services to its customers. The Company’s leases have remaining lease terms of one In accordance with ASU 2016-02, for leases with terms greater than twelve months, the Company records the related right-of-use assets and lease liabilities at the present value of the fixed lease payments over the lease term at the lease commencement date. The Company uses its incremental borrowing rate to determine the present value of the lease as the rate implicit in the lease is typically not readily determinable. Short-term leases (leases with an initial term of twelve months or less or leases that are cancelable by the lessee and lessor without significant penalties) are expensed on a straight-line basis over the lease term. The majority of the Company’s short-term leases relate to equipment used in delivering services to its customers. These leases are entered into at agreed upon hourly, daily, weekly, or monthly rental rates for an unspecified duration and typically have a termination for convenience provision. Such equipment leases are considered short-term in nature unless it is reasonably certain that the equipment will be leased for a term greater than twelve months. On September 2, 2021, the Company made the decision to relocate its corporate headquarters to Atlanta, Georgia and entered into a ten-year lease agreement. The lease is not presented as a right-of-use asset and lease liability because the commencement date of the lease is not expected to occur until early 2022 after substantial completion of the leasehold improvements as defined in the lease agreement. The lease liability amounts to $3.5 million with a present value of $2.3 million over a ten-year term. If the Company defaults, the landlord has the right to use the security deposit for rent or other payments due to other damages, injury, expense or liability as defined in the lease agreement. Although the security deposit shall be deemed the property of the landlord, any remaining balance of the security deposit shall be returned by the landlord to the Company after termination of the lease as the Company’s obligations under the lease have been fulfilled. The components of lease expense were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, Lease Cost (in thousands) ​ 2021 ​ 2020 ​ 2021 ​ 2020 Operating lease cost ​ $ 619 ​ $ 850 ​ $ 1,711 ​ $ 2,950 Short-term lease cost ​ ​ 1,051 ​ ​ 505 ​ ​ 2,484 ​ ​ 1,972 Sublease income ​ ​ (5) ​ ​ — ​ ​ (5) ​ ​ — Total lease cost ​ $ 1,665 ​ $ 1,355 ​ $ 4,190 ​ $ 4,922 ​ Lease cost related to finance leases was not significant for the three and nine months ended September 30, 2021 and 2020. Information related to the Company’s right-of-use assets and lease liabilities was as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Lease Assets/Liabilities (in thousands) ​ Balance Sheet Classification ​ September 30, 2021 ​ December 31, 2020 Lease Assets ​ ​ ​ ​ ​ ​ ​ ​ Right-of-use assets ​ Other long-term assets ​ $ 1,583 ​ $ 2,029 ​ ​ ​ ​ ​ ​ ​ ​ ​ Lease Liabilities ​ ​ ​ ​ ​ ​ ​ ​ Short-term lease liabilities ​ Other current liabilities ​ $ 1,603 ​ $ 1,362 Long-term lease liabilities ​ Other long-term liabilities ​ ​ 673 ​ ​ 1,011 Total lease liabilities ​ ​ ​ $ 2,276 ​ $ 2,373 ​ Supplemental information related to the Company’s leases was as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nine Months Ended September 30, (dollars in thousands) ​ 2021 ​ 2020 Cash paid for amounts included in the measurement of lease liabilities: ​ ​ ​ ​ ​ ​ Operating cash used by operating leases ​ $ 1,810 ​ $ 3,388 Right-of-use assets obtained in exchange for new operating lease liabilities ​ ​ 1,549 ​ ​ 2,226 Weighted-average remaining lease term - operating leases ​ ​ 1.47 years ​ ​ 1.71 years Weighted-average remaining lease term - finance leases ​ ​ 2.48 years ​ ​ 3.48 years Weighted-average discount rate - operating leases ​ ​ 9% ​ ​ 9% Weighted-average discount rate - finance leases ​ ​ 9% ​ ​ 9% ​ Total remaining lease payments under the Company’s operating and finance leases were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Operating Leases ​ Finance Leases Nine Months Ended September 30, ​ (in thousands) Remainder of 2021 ​ $ 582 ​ $ 2 2022 ​ ​ 1,372 ​ ​ 6 2023 ​ ​ 360 ​ ​ 6 2024 ​ ​ 103 ​ ​ 1 2025 ​ ​ 3 ​ ​ — Total lease payments ​ $ 2,420 ​ $ 15 Less: interest ​ ​ (159) ​ ​ — Present value of lease liabilities ​ $ 2,261 ​ $ 15 ​

CHANGES IN BUSINESS

CHANGES IN BUSINESS	9 Months Ended
	Sep. 30, 2021
CHANGES IN BUSINESS.
CHANGES IN BUSINESS	NOTE 4—CHANGES IN BUSINESS Discontinued Operations Electrical Solutions During the fourth quarter of 2017, the Company made the decision to exit and sell its Electrical Solutions segment (which was comprised solely of Koontz-Wagner Custom Controls Holdings LLC (“Koontz-Wagner”), a wholly owned subsidiary of the Company) in an effort to reduce the Company’s outstanding term debt. The Company determined that the decision to exit this segment met the definition of a discontinued operation. As a result, this segment has been presented as a discontinued operation for all periods presented. On July 11, 2018, Koontz-Wagner filed a voluntary petition for relief under Chapter 7 of Title 11 of the Bankruptcy Code with the U.S. Bankruptcy Court for the Southern District of Texas. The filing was for Koontz-Wagner only, not for the Company as a whole, and was completely separate and distinct from the Williams business and operations. As a result of the July 11, 2018 bankruptcy of Koontz-Wagner, the Company recorded a pension withdrawal liability of $2.9 million related to Koontz-Wagner’s International Brotherhood of Electrical Workers Local Union 1392 (“IBEW”) multi-employer pension plan. After an arbitration process, on May 12, 2021, an arbitrator concluded that the IBEW used an incorrect per hour contribution rate in calculating the Company’s pension withdrawal liability, which resulted in the Company overpaying. The arbitrator directed IBEW to refund all overpayments, with interest, to the Company and to redetermine the Company’s payments going forward using the proper contribution rate. Accordingly, the Company’s overall pension withdrawal liability decreased by approximately $0.2 million. The pension liability is expected to be satisfied by annual cash payments of $0.3 million each, paid in quarterly installments, through 2038. The Company recorded a gain on disposal of approximately $0.2 million in the nine months ended September 30, 2021 to reduce its previously recorded estimated withdrawal liability to the new amount. Mechanical Solutions During the third quarter of 2017, the Company made the decision to exit and sell substantially all of the operating assets and liabilities of its Mechanical Solutions segment and determined that the decision to exit this segment met the definition of a discontinued operation. As a result, this segment has been presented as a discontinued operation for all periods presented. As of September 30, 2021 and December 31, 2020, the Company did not have any assets related to its Electrical Solutions’ and Mechanical Solutions’ discontinued operations. The following table presents a reconciliation of the carrying amounts of major classes of liabilities of Electrical Solutions’ and Mechanical Solutions’ discontinued operations: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) September 30, 2021 ​ December 31, 2020 Liabilities: ​ ​ ​ ​ ​ ​ Current liabilities of discontinued operations ​ $ 188 ​ $ 342 Liability for pension obligation ​ ​ 2,347 ​ ​ 2,670 Liability for uncertain tax positions ​ ​ 1,854 ​ ​ 1,796 Long-term liabilities of discontinued operations ​ ​ 4,201 ​ ​ 4,466 Total liabilities of discontinued operations ​ $ 4,389 ​ $ 4,808 ​ The following table presents a reconciliation of the major classes of line items constituting the net income (loss) from discontinued operations. In accordance with GAAP, the amounts in the table below do not include an allocation of corporate overhead. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, (in thousands) 2021 2020 ​ 2021 2020 General and administrative expenses ​ $ 5 ​ $ 14 ​ $ 39 ​ $ 20 Loss (gain) on disposal - Electrical Solutions ​ ​ (17) ​ ​ — ​ ​ (245) ​ ​ 45 Interest expense ​ ​ 46 ​ ​ 52 ​ ​ 76 ​ ​ 157 Income (loss) from discontinued operations before income tax ​ ​ (34) ​ ​ (66) ​ ​ 130 ​ ​ (222) Income tax expense (benefit) ​ ​ 22 ​ ​ 24 ​ ​ 59 ​ ​ (56) Income (loss) from discontinued operations ​ $ (56) ​ $ (90) ​ $ 71 ​ $ (166) ​

REVENUE

REVENUE	9 Months Ended
	Sep. 30, 2021
REVENUE.
REVENUE	NOTE 5—REVENUE Disaggregation of Revenue The Company’s contracts generally include a single performance obligation for which revenue is recognized over time, as performance obligations are satisfied, due to the continuous transfer of control to the customer. For cost-plus contracts, the Company recognizes revenue when services are performed and contractually billable based upon the hours incurred and agreed-upon hourly rates. Revenue on fixed-price contracts is recognized and invoiced over time using the cost-to-cost percentage-of-completion method. To the extent a contract is deemed to have multiple performance obligations, the Company allocates the transaction price of the contract to each performance obligation using its best estimate of the standalone selling price of each distinct good or service in the contract. The Company does not adjust the price of the contract for the effects of a significant financing component. Change orders are generally not distinct from the existing contract due to the significant integration service provided in the context of the contract and are accounted for as a modification of the existing contract and performance obligation. The Company believes these methods of revenue recognition most accurately reflect the economics of the transactions with its customers. The Company’s contracts may include several types of variable consideration, including change orders, rate true-up provisions, retainage, claims, incentives, penalties, and liquidated damages. The Company estimates the amount of revenue to be recognized on variable consideration using estimation methods that best predict the amount of consideration to which the Company expects to be entitled. The Company includes variable consideration in the estimated transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized will not occur or when the uncertainty associated with the variable consideration is resolved. The Company’s estimates of variable consideration and determination of whether to include estimated amounts in the transaction price are based on an assessment of its anticipated performance and all information (historical, current, and forecasted) that is reasonably available. The Company updates its estimate of the transaction price each reporting period and the effect of variable consideration on the transaction price is recognized as an adjustment to revenue on a cumulative catch-up basis. In circumstances where the Company cannot reasonably determine the outcome of a contract, it recognizes revenue over time as the work is performed, but only to the extent of recoverable costs incurred (i.e. zero margin). A loss provision is recorded for the amount of any estimated unrecoverable costs in excess of total estimated revenue on a contract as soon as the Company becomes aware. The Company generally provides a limited warranty for a term of two years or less following completion of services performed under its contracts. Historically, warranty claims have not resulted in material costs incurred. Disaggregated revenue by type of contract was as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, (in thousands) ​ 2021 ​ 2020 ​ 2021 ​ 2020 Cost-plus reimbursement contracts ​ $ 63,363 ​ $ 57,123 ​ $ 201,027 ​ $ 182,689 Fixed-price contracts ​ ​ 9,988 ​ ​ 9,117 ​ ​ 24,746 ​ ​ 22,247 Total ​ $ 73,351 ​ $ 66,240 ​ $ 225,773 ​ $ 204,936 ​ Disaggregated revenue by the geographic area where the work was performed was as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, (in thousands) ​ 2021 ​ 2020 ​ 2021 ​ 2020 United States ​ $ 64,379 ​ $ 57,984 ​ $ 197,287 ​ $ 178,447 Canada ​ ​ 8,972 ​ ​ 8,256 ​ ​ 28,486 ​ ​ 26,489 Total ​ $ 73,351 ​ $ 66,240 ​ $ 225,773 ​ $ 204,936 ​ Contract Balances The Company enters into contracts that allow for periodic billings over the contract term that are dependent upon specific advance billing terms, as services are provided, or as milestone billings based on completion of certain phases of work. Projects with performance obligations recognized over time that have costs and estimated earnings recognized to date in excess of cumulative billings are reported in the Company’s unaudited condensed consolidated balance sheets as contract assets. Projects with performance obligations recognized over time that have cumulative billings in excess of costs and estimated earnings recognized to date are reported in the Company’s unaudited condensed consolidated balance sheets as contract liabilities. At any point in time, each project in process could have either contract assets or contract liabilities. The following table provides information about contract assets and contract liabilities from contracts with customers: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, (in thousands) ​ 2021 ​ 2020 ​ 2021 ​ 2020 Costs incurred on uncompleted contracts ​ $ 66,590 ​ $ 57,582 ​ $ 203,561 ​ $ 180,014 Earnings recognized on uncompleted contracts ​ 6,761 ​ 8,658 ​ 22,212 ​ 24,922 Total ​ ​ 73,351 ​ 66,240 ​ ​ 225,773 ​ 204,936 Less—billings to date ​ ​ (63,034) ​ (60,850) ​ ​ (215,456) ​ (199,546) Net ​ $ 10,317 ​ $ 5,390 ​ $ 10,317 ​ $ 5,390 Contract assets ​ $ 12,811 ​ $ 8,795 ​ $ 12,811 ​ $ 8,795 Contract liabilities ​ ​ (2,494) ​ (3,405) ​ ​ (2,494) ​ (3,405) Net ​ $ 10,317 ​ $ 5,390 ​ $ 10,317 ​ $ 5,390 ​ For the three and nine months ended September 30, 2021, the Company recognized revenue of approximately $1.1 million and $2.2 million, respectively, on approximately $2.5 million that was included in the corresponding contract liability balance on December 31, 2020. Remaining Performance Obligations The following table includes estimated revenue expected to be recognized in the future related to performance obligations that were unsatisfied (or partially unsatisfied) as of September 30, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ Remainder of 2021 ​ 2022 ​ 2023 ​ Thereafter ​ Total Remaining performance obligations ​ $ 73,416 ​ $ 133,826 ​ $ 95,098 ​ $ 370,166 ​ $ 672,506 ​

EARNINGS PER SHARE

EARNINGS PER SHARE	9 Months Ended
	Sep. 30, 2021
EARNINGS PER SHARE
EARNINGS PER SHARE	NOTE 6—EARNINGS PER SHARE As of September 30, 2021, the Company’s 25,915,502 shares outstanding included 215,956 shares of contingently issued but unvested restricted stock. As of September 30, 2020, the Company’s 25,336,442 shares outstanding included 550,857 shares of contingently issued but unvested restricted stock. Restricted stock is excluded from the calculation of basic weighted average shares outstanding, but its impact, if dilutive, is included in the calculation of diluted weighted average shares outstanding. Basic earnings per common share are calculated by dividing net income by the weighted average common shares outstanding during the period. Diluted earnings per common share are based on the weighted average common shares outstanding during the period, adjusted for the potential dilutive effect of common shares that would be issued upon the vesting and release of restricted stock awards and units and stock options, if any. Basic and diluted earnings per common share from continuing operations were calculated as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, (in thousands, except share and per share data) 2021 ​ 2020 ​ 2021 2020 Income from continuing operations ​ $ 794 ​ $ 1,116 ​ $ 1,857 ​ $ 2,696 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Basic earnings per common share: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average common shares outstanding ​ ​ 25,699,545 ​ ​ 24,689,337 ​ ​ 25,306,130 ​ ​ 23,304,059 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Basic earnings per common share ​ $ 0.03 ​ $ 0.04 ​ $ 0.07 ​ $ 0.12 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Diluted earnings per common share: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average common shares outstanding ​ ​ 25,699,545 ​ ​ 24,689,337 ​ ​ 25,306,130 ​ ​ 23,304,059 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Dilutive effect: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unvested portion of restricted stock units and awards ​ ​ 807,030 ​ ​ 494,969 ​ ​ 791,570 ​ ​ 532,739 Weighted average diluted common shares outstanding ​ ​ 26,506,575 ​ ​ 25,184,306 ​ 26,097,700 ​ ​ 23,836,798 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Diluted earnings per common share ​ $ 0.03 ​ $ 0.04 ​ $ 0.07 ​ $ 0.11 ​ The weighted average number of shares outstanding used in the computation of basic and diluted earnings per common share does not include the effect of the following potential outstanding common stock. The effects of the potentially outstanding service-based restricted stock and restricted stock unit awards were not included in the calculation of diluted earnings per common share because the effect would have been anti-dilutive. The effects of the potentially outstanding performance- and market-based restricted stock unit awards were not included in the calculation of diluted earnings per common share because the performance and/or market conditions had not been satisfied as of September 30, 2021 and 2020. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, ​ 2021 ​ 2020 ​ 2021 2020 Unvested service-based restricted stock and restricted stock unit awards 16,666 ​ 391,601 ​ — ​ 262,705 Unvested performance- and market-based restricted stock unit awards 833,111 ​ 1,585,703 ​ 833,111 ​ 1,585,703 ​

INCOME TAXES

INCOME TAXES	9 Months Ended
	Sep. 30, 2021
INCOME TAXES
INCOME TAXES	NOTE 7—INCOME TAXES The effective income tax expense rate for continuing operations for the three and nine months ended September 30, 2021 and 2020 was as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, (in thousands) 2021 ​ 2020 ​ 2021 2020 Income tax (benefit) expenses ​ ($6) ​ $321 ​ $256 ​ $565 Effective income tax rate for continuing operations ​ -0.8% ​ 22.3% ​ 12.1% ​ 17.3% ​ The effective income tax rate differs from the statutory federal income tax rate of 21% primarily because of the partial valuation allowances recorded on the Company’s deferred tax assets and the Canadian income tax provision. For the three months ended September 30, 2021, the Company recorded income tax benefit from continuing operations of $0.01 million, or (0.8)% of pretax income from continuing operations, compared with income tax expense from continuing operations of $0.3 million, or 22.3% of pretax income from continuing operations, in the corresponding period of 2020. For the nine months ended September 30, 2021, the Company recorded income tax expense from continuing operations of $0.3 million, or 12.1% of pretax income from continuing operations, compared with income tax expense from continuing operations of $0.6 million, or 17.3% of pretax income from continuing operations, in the corresponding period of 2020. The decrease in income tax provision from continuing operations for the three months ended September 30, 2021, compared with the corresponding period in 2020 was primarily the result of the $0.3 million increase in U.S. deferred tax assets net of a partial valuation allowance, and the $0.05 million decrease in the income tax provision as a result of the year-over-year fluctuation in Canadian pre-tax book income. The $0.3 million U.S. deferred tax asset increase is attributable to the increase in indefinite lived assets, both the net operating loss and the Section 163(j) interest addback. The increase was primarily driven by a $0.8 million favorable tax adjustment related to the Koontz-Wagner bankruptcy estate distribution in the third quarter of 2021, and a $0.6 million favorable tax adjustment as the Company is expecting to pay off half of the payroll tax deferred, under the CARES Act (as defined below), by the end of December 31, 2021. The Company’s net deferred balance was primarily composed of indefinite lived deferred tax liabilities attributable to goodwill and trade names, and indefinite lived deferred tax assets related to the post 2017 net operating losses and the Section 163(j) interest addback. A full valuation allowance was applied to most of the remaining deferred balances. The indefinite lived deferred tax assets enabled the release of the valuation allowance to the extent that it can offset the indefinite lived deferred tax liabilities. Because all indefinite lived deferred tax liabilities are part of continued operations, and the release of valuation allowance is attributable to the future taxable income related to these deferred tax liabilities, the entire valuation allowance released was recorded in continuing operations according to ASC 740-20-45-3. As a result, the favorable tax adjustment related to the Koontz-Wagner bankruptcy estate distribution (arising from the discontinued operation), has been reported as continuing operations. As of September 30, 2021, the Company had $2.1 million net deferred tax liabilities, mainly composed of $12.3 million indefinite lived deferred tax liabilities attributable to goodwill and trade names, partially offset by $6.9 million indefinite lived deferred tax assets attributable to post 2017 net operating losses and $3.1 million indefinite lived deferred tax assets attributable to Section 163(j) interest addback. The decrease in income tax provision from continuing operations for the nine months ended September 30, 2021 compared with the corresponding period in 2020 was primarily the result of a $0.4 million increase in the U.S. deferred tax assets net of partial valuation allowance, as the Company’s indefinite lived intangible assets have been fully amortized for tax purposes as of year-end 2020, partially offset by a $0.1 million increase in the Canadian tax provision. As of September 30, 2021 and 2020, the Company would have needed to generate approximately $270.4 million and $268.5 million, respectively, of future taxable income in order to realize its deferred tax assets. The Company’s foreign subsidiaries may generate earnings that are not subject to U.S. income taxes so long as they are permanently reinvested in its operations outside of the U.S. pursuant to ASC 740-30. Undistributed earnings of foreign subsidiaries that are no longer permanently reinvested would become subject to deferred income taxes. As of September 30, 2021, the Company’s Canadian subsidiary had approximately $8.3 million in Canadian currency in undistributed earnings. The Company’s management asserts that all of the undistributed earnings will be reinvested in the Canadian subsidiary based on the following facts presented at the time of preparing the financial statements: (1) the Company’s domestic operations are not in need of working capital from the foreign subsidiary, and any temporary intercompany payable with the Canadian subsidiary will be repaid within one year from the end of the corporation’s tax year in which the indebtedness arises; (2) the Canadian subsidiary has not declared dividends since its inception in 2018, and management is not expecting the Canadian subsidiary to declare dividends in the foreseeable future; and (3) the Company’s management has developed a strategic growth initiative to pursue nuclear plant maintenance, modifications, and construction in Canada for the long-term. Therefore, the accrual of deferred tax liability with respect to the Company’s outside basis difference in its investment in Canada is not needed pursuant to the APB 23 exception. As of September 30, 2021 and 2020, the Company provided for a total liability of $3.0 million and $2.8 million, respectively, of which $1.9 million for the period ended September 30, 2021, compared to $1.7 million for the corresponding period in 2020, related to discontinued operations, for unrecognized tax benefits related to various federal, foreign and state income tax matters, which were included in long-term liabilities of discontinued operations and other long-term liabilities. If recognized, the entire amount of the liability would affect the effective tax rate. As of September 30, 2021, the Company accrued approximately $1.4 million, of which $0.8 million related to discontinued operations, in both other long-term liabilities of discontinued operations and other long-term liabilities for potential payment of interest and penalties related to uncertain income tax positions. On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security (“CARES”) Act was enacted and signed into U.S. law to provide economic relief to individuals and businesses facing economic hardship as a result of the COVID-19 pandemic. The Company has incorporated the impact of the CARES Act to the tax provision. In addition, the Company deferred payments of federal employer payroll taxes of approximately $4.9 million (recorded within accrued compensation and benefits on the consolidated balance sheet), as permitted by the CARES Act. The first half of the deferred amounts will be paid by December 2021, and the second half by December 2022.

DEBT

DEBT	9 Months Ended
	Sep. 30, 2021
DEBT
DEBT	NOTE 8—DEBT As of September 30, 2021, the Company was in compliance with all debt covenants. Due to the continued volatility caused by the COVID-19 pandemic, the Company cannot provide any assurance that the assumptions used to estimate its liquidity requirements will remain accurate. As a consequence, the Company’s estimates of the effects of the pandemic and their impact on the Company’s future earnings and cash flows could change and have a material impact on its results of operations and financial condition, including negatively affecting the Company’s ability to remain in compliance with its debt covenants. The following table provides information about the Company’s debt, net of unamortized deferred financing costs: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) September 30, 2021 December 31, 2020 Revolving credit facility ​ $ 4,672 ​ $ 352 Term loan, current portion of long-term debt ​ ​ 1,050 ​ ​ 1,050 Current debt ​ $ 5,722 ​ $ 1,402 ​ ​ ​ ​ ​ ​ ​ Term loan, noncurrent portion of long-term debt ​ $ 33,163 ​ $ 33,950 Unamortized debt discount from refinancing to new loan ​ ​ (841) ​ ​ (991) Unamortized deferred financing costs ​ ​ (1,894) ​ ​ (2,231) Long-term debt, net ​ $ 30,428 ​ $ 30,728 ​ ​ ​ ​ ​ ​ ​ Total debt, net ​ $ 36,150 ​ $ 32,130 ​ Debt Refinancing On December 16, 2020 (the “Closing Date”), the Company and certain of its subsidiaries refinanced and replaced its revolving credit facility with MidCap Financial Trust (the “Prior ABL”) and its four-year $35.0 million term loan facility with Centre Lane Partners, LLC and entered into (i) the Term Loan Agreement (as defined below), which provided for senior secured term loan facilities in an aggregate principal amount of up to $50.0 million (collectively, the “Term Loan”), consisting of a $35.0 million closing date term loan facility (the “Closing Date Term Loan”) and up to $15.0 million of borrowings under a delayed draw facility (the “Delayed Draw Term Loan Facility”) with EICF Agent LLC, as agent, and CION Investment Corporation, as a lender and a co-lead arranger, and the other lenders party thereto; and (ii) a senior secured asset-based revolving line of credit of up to $30.0 million (the “Revolving Credit Facility”) with PNC Bank, National Association (“PNC”). As of September 30, 2021, the Company had $4.7 million outstanding under the Revolving Credit Facility and $34.2 million outstanding (including both the noncurrent and current portion of the Term Loan) under the Term Loan. The Term Loan Agreement provides for an interest rate of 9.0% (or 8.5% if the Total Leverage Ratio (as defined in the Term Loan Agreement) is less than 2.50:1) plus the London Interbank Offered Rate (“LIBOR”) (with a minimum rate of 1.0%) per year. The Revolving Credit Facility On the Closing Date, the Company and certain of its subsidiaries (the “Revolving Loan Borrowers”) entered into the Revolving Credit and Security Agreement with PNC, as agent for the lenders, and the lenders party thereto (the “Revolving Credit Agreement”), which provides for the Revolving Credit Facility. As part of the Revolving Credit Facility, the Company may access a letter of credit sublimit in an amount up to $2.0 million, a swing loan sublimit in an aggregate principal amount of up to $3.0 million, and a Canadian dollar sublimit in an aggregate principal amount of up to $5.0 million. The Revolving Credit Facility matures on December 16, 2025. Borrowings under the Revolving Credit Facility bear interest, at the Company’s election, at either (1) the base commercial lending rate of PNC, as publicly announced, plus 1.25%, payable in cash on a monthly basis, (2) the 30, 60 or 90 day LIBOR rate, subject to a minimum LIBOR floor of 1.00%, plus 2.25%, payable in cash on the last day of each interest period, or (3) with respect to Canadian dollar loans, the Canadian Dollar Offered Rate (“CDOR”), subject to a minimum CDOR rate of 1.00%, payable in cash on a monthly basis. In addition, upon the occurrence of an event of default, and for so long as such event of default continues, default interest equal to 2.00% per year in excess of the rate otherwise applicable will be payable. The Revolving Credit Agreement also includes customary replacement provisions in the event of the discontinuation of LIBOR. The Revolving Loan Borrowers’ Obligations (as defined in the Revolving Credit Agreement) are guaranteed by certain of the Company’s material, wholly-owned subsidiaries, subject to customary exceptions (the “Revolving Loan Guarantors” and, together with the Revolving Loan Borrowers, the “Revolving Loan Credit Parties”). The Revolving Loan Credit Parties’ obligations are secured by first-priority security interests on substantially all of the Revolving Loan Credit Parties’ accounts and a second-priority security interest in substantially all other assets of the Revolving Loan Credit Parties, subject to the terms of the Intercreditor Agreement between PNC and EICF Agent LLC, as the Revolving Loan Agent and the Term Loan Agent, respectively (as each such term is defined in the Intercreditor Agreement), as described below (the “Intercreditor Agreement”). The Revolving Loan Borrowers may from time to time voluntarily prepay outstanding amounts, plus any accrued but unpaid interest on the aggregate amount being prepaid, under the Revolving Credit Facility, in whole or in part. There is no required minimum prepayment amount. If at any time the amount outstanding under the Revolving Credit Agreement exceeds the borrowing base, or any sublimit, in effect at such time, the excess amount will be immediately due and payable. Subject to the Intercreditor Agreement, the Revolving Credit Agreement also requires mandatory prepayment of outstanding amounts in the event the Revolving Loan Borrowers receive proceeds from certain events and activities, including, among others, certain asset sales and casualty events, the issuance of indebtedness and equity interests, and the recovery of any proceeds from certain specified arbitration proceedings. The Revolving Credit Agreement provides for a customary unused line fee equal to 0.25% per year on the unused portion of the Revolving Credit Facility, which is payable on a quarterly basis, and a collateral monitoring fee of $2,500, which is payable on a monthly basis. The Revolving Credit Agreement also provides for an early termination fee (the “Early Termination Fee”), payable to the revolving lenders thereunder upon (1) any acceleration of the Obligations and termination of the Revolving Credit Agreement and the obligation of the revolving lenders to make advances thereunder following the occurrence of an Event of Default (as defined in the Revolving Credit Agreement), or (2) any other termination of the Revolving Credit Agreement and the obligation of revolving lenders to make advances thereunder for any reason (the “Early Termination Date”). The Early Termination Fee is calculated as follows: if the Early Termination Date occurs on or prior to the first anniversary of the Closing Date, the Early Termination Fee will be 2.00% of the Revolving Credit Facility; and if prepayment occurs after the first anniversary of the Closing Date and on or prior to the second anniversary of the Closing Date, the Early Termination Fee will be 1.00% of the Revolving Credit Facility. While any letter of credit is outstanding under the Revolving Credit Facility, the Revolving Loan Borrowers must pay a letter of credit fronting fee at a rate equal to 0.25% per year, payable quarterly, in addition to any other customary fees required by the issuer of the letter of credit. The Revolving Credit Agreement contains customary representations and warranties, as well as customary affirmative and negative covenants, in each case, with certain exceptions, limitations and qualifications. The Revolving Credit Agreement also requires the Revolving Loan Borrowers to regularly provide certain financial information to the lenders thereunder, maintain a springing minimum fixed charge coverage ratio, and comply with certain limitations on capital expenditures. Events of default under the Revolving Credit Agreement include, but are not limited to, a breach of certain covenants or any representations or warranties, failure to timely pay any amounts due and owing, the commencement of any bankruptcy or other insolvency proceeding, judgments in excess of certain acceptable amounts, the occurrence of a change in control, certain events related to ERISA matters, impairment of security interests in collateral or invalidity of guarantees or security documents, or a default or event of default under the Term Loan Agreement or the Intercreditor Agreement, in each case, with customary exceptions, limitations, grace periods and qualifications. If an event of default occurs, the revolving lenders may, among other things, declare all Obligations outstanding under the Revolving Credit Facility to be immediately due and payable, together with accrued interest and fees, and exercise remedies under the collateral documents relating to the Revolving Credit Agreement. EICF Agent LLC, as the Term Loan Agent, and PNC, as the Revolving Loan Agent, entered into an Intercreditor Agreement, dated as of the Closing Date, to which the Term Loan Credit Parties (as defined below) and Revolving Loan Credit Parties consented. The Intercreditor Agreement, among other things, specifies the relative lien priorities of the Term Loan Agent and Revolving Loan Agent in the relevant collateral, and contains customary provisions regarding, among other things, the rights of the Term Loan Agent and Revolving Loan Agent to take enforcement actions against the relevant collateral and certain limitations on amending the documentation governing each of the Term Loan and Revolving Credit Facility. The Term Loan On the Closing Date, the Company and certain of its subsidiaries (the “Term Loan Borrowers”) entered into the Term Loan, Guarantee and Security Agreement with EICF Agent LLC, as agent for the lenders, CION Investment Corporation, as a lender and co-lead arranger, and the other lenders party thereto (the “Term Loan Agreement”), which provides for the Term Loan. The Closing Date Term Loan was fully drawn on the Closing Date, while the Delayed Draw Term Loan Facility is available upon the satisfaction of certain conditions precedent for up to 18 months following the Closing Date. The Term Loan matures on December 16, 2025. Borrowings under the Term Loan Agreement bear interest at LIBOR, plus a margin of 8.50% (if the Total Leverage Ratio (as defined in the Term Loan Agreement) is less than 2.50:1) or 9.00% per year (if the Total Leverage Ratio is greater than or equal to 2.50:1), subject to a minimum LIBOR floor of 1.00%, payable in cash on a quarterly basis. In addition, upon the occurrence of an event of default, and for so long as such event of default continues, default interest equal to 2.00% per year in excess of the rate otherwise applicable will be payable. The Term Loan Agreement also includes customary replacement provisions in the event of the discontinuation of LIBOR. The Term Loan Borrowers’ Obligations (as defined in the Term Loan Agreement) are guaranteed by certain of the Company’s material, wholly-owned subsidiaries, subject to customary exceptions (the “Term Loan Guarantors” and, together with the Term Loan Borrowers, the “Term Loan Credit Parties”). The Term Loan Credit Parties’ obligations are secured by first-priority security interests on substantially all of the Term Loan Credit Parties’ assets, as well as a second-priority security interest on the Term Loan Credit Parties’ accounts receivable and inventory, subject to the Intercreditor Agreement. Subject to certain conditions, the Term Loan Borrowers may voluntarily prepay the Term Loan on any Payment Date (as defined in the Term Loan Agreement), in whole or in part, in a minimum amount of $1.0 million of the outstanding principal amount, plus a prepayment fee (the “Prepayment Fee”), calculated as follows: if prepayment occurs prior to the first anniversary of the Closing Date, the Prepayment Fee will be 3.00% of the principal amount being prepaid; if prepayment occurs on or after the first anniversary of the Closing Date and prior to the second anniversary of the Closing Date, the Prepayment Fee will be 2.00% of the principal amount being prepaid; and if prepayment occurs on or after the second anniversary of the Closing Date and prior to the third anniversary of the Closing Date, the Prepayment Fee will be 1.00% of the principal amount being prepaid. Subject to certain exceptions, within 120 days of the end of each calendar year, beginning with the year ending December 31, 2021, the Term Loan Borrowers must prepay the Obligations in an amount equal to (1) (i) if the Total Leverage Ratio is greater than 3:00:1:00, 50.0% of Excess Cash Flow (as defined in the Term Loan Agreement) or (ii) if the Total Leverage Ratio is equal to or less than 3:00:1:00 and greater than 2:00:1:00, 25.0% of Excess Cash Flow, less (2) all voluntary prepayments made on the Term Loan during such calendar year; provided that, so long as no default or event of default has occurred and is continuing or would result therefrom, no such prepayment will be required unless Excess Cash Flow for such calendar year equals or exceeds $0.5 million. The Term Loan Agreement also requires mandatory prepayment of certain amounts in the event the Term Loan Borrowers receive proceeds from certain events and activities, including, among others, certain asset sales and casualty events, the issuance of indebtedness and equity interests, and the receipt of extraordinary receipts (with certain exclusions), plus, in certain instances, the applicable Prepayment Fee, calculated as set forth above. The Term Loan Agreement contains customary representations and warranties, as well as customary affirmative and negative covenants, in each case, with certain exceptions, limitations and qualifications. The Term Loan Agreement also requires the Term Loan Borrowers to regularly provide certain financial information to the lenders thereunder, maintain a maximum total leverage ratio and a minimum fixed charge coverage ratio, and comply with certain limitations on capital expenditures. Events of default under the Term Loan Agreement include, but are not limited to, a breach of certain covenants or any representations or warranties, failure to timely pay any amounts due and owing, the commencement of any bankruptcy or other insolvency proceeding, judgments in excess of certain acceptable amounts, the occurrence of a change in control, certain events related to ERISA matters, impairment of security interests in collateral or invalidity of guarantees or security documents, or a default or event of default under the Revolving Credit Agreement or the Intercreditor Agreement, in each case, with customary exceptions, limitations, grace periods and qualifications. If an event of default occurs, the Term Loan lenders may, among other things, declare all Obligations to be immediately due and payable, together with accrued interest and fees, and exercise remedies under the collateral documents relating to the Term Loan Agreement. Letters of Credit and Bonds In line with industry practice, the Company is often required to provide letters of credit and payment and performance surety bonds to customers. These letters of credit and bonds provide credit support and security for the customer if the Company fails to perform its obligations under the applicable contract with such customer. The Revolving Credit Facility provides for a letter of credit sublimit in an amount up to $2.0 million. As of September 30, 2021, the Company had $0.5 million letters of credit outstanding under this sublimit and $0.4 million cash collateralized standby letters of credit outstanding pursuant to its prior revolving credit facility with Wells Fargo Bank, National Association. There were no amounts drawn upon these letters of credit as of September 30, 2021. In addition, as of September 30, 2021 and December 31, 2020, the Company had outstanding payment and performance surety bonds of $67.1 million and $31.0 million, respectively. Deferred Financing Costs Deferred financing costs are amortized over the terms of the related debt facilities using the straight-line method. The following table summarizes the amortization of deferred financing costs related to the Company's debt facilities and recognized in interest expense on the unaudited condensed consolidated statements of operations: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, (in thousands) ​ 2021 ​ 2020 ​ 2021 ​ 2020 Term loan ​ $ 112 ​ $ 110 ​ $ 337 ​ $ 330 Revolving credit facility ​ ​ 96 ​ ​ 72 ​ ​ 286 ​ ​ 217 Total ​ $ 208 ​ $ 182 ​ $ 623 ​ $ 547 ​ The following table summarizes unamortized deferred financing costs included on the Company's unaudited condensed consolidated balance sheets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) Location September 30, 2021 ​ December 31, 2020 Term loan ​ Long-term debt, net ​ $ 1,894 ​ $ 2,231 Revolving credit facility ​ Other long-term assets ​ ​ 1,604 ​ ​ 1,890 Total ​ ​ ​ $ 3,498 ​ $ 4,121 ​

FINANCIAL INSTRUMENTS

FINANCIAL INSTRUMENTS	9 Months Ended
	Sep. 30, 2021
FINANCIAL INSTRUMENTS
FINANCIAL INSTRUMENTS	NOTE 9 — FINANCIAL INSTRUMENTS Fair Value of Financial Instruments ASC 820–Fair Value Measurement defines fair value as the exit price, which is the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. ASC 820 also establishes a three-tier fair value hierarchy, which categorizes the inputs used in measuring fair value. The hierarchy gives the highest priority to unadjusted quoted prices in the active markets for identical assets and liabilities and the lowest priority to unobservable inputs. The Company’s financial instruments as of September 30, 2021 and December 31, 2020 consisted primarily of cash and cash equivalents, restricted cash, receivables, payables, and debt instruments. The carrying values of these financial instruments approximate their respective fair values, as they are either short-term in nature or carry interest rates that are periodically adjusted to market rates.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	9 Months Ended
	Sep. 30, 2021
COMMITMENTS AND CONTINGENCIES
COMMITMENTS AND CONTINGENCIES	NOTE 10—COMMITMENTS AND CONTINGENCIES Litigation and Claims The Company is from time-to-time party to various lawsuits, including personal injury claims and other proceedings that arise in the ordinary course of its business. With respect to all such lawsuits, claims and proceedings, the Company records a reserve when it is probable that a liability has been incurred and the amount of loss can be reasonably estimated. The Company does not believe that the resolution of any currently pending lawsuits, claims and proceedings, either individually or in the aggregate, will have a material adverse effect on its financial position, results of operations or liquidity. However, the outcomes of any currently pending lawsuits, claims and proceedings cannot be predicted, and therefore, there can be no assurance that this will be the case. The Company completed a bankruptcy filing of its Koontz-Wagner subsidiary on July 11, 2018. This could require the Company to incur legal fees and other expenses related to liabilities from this bankruptcy filing. While the Company does not anticipate these liabilities will have a material adverse effect on its results of operations, cash flows and financial position, and although the statute of limitations has run on certain claims that the Chapter 7 Trustee for the Koontz-Wagner estate might assert, there can be no assurance of the outcome. The filing was for Koontz-Wagner only, not for the Company as a whole, and was completely separate and distinct from the Williams business and operations. For additional information, please refer to “Note 4—Changes in Business” to the unaudited condensed consolidated financial statements. The acquiror of certain assets from a former operating unit of the Company has been named as a defendant in an asbestos personal injury lawsuit and has submitted a claim for indemnification and tendered defense of the matter to the Company. The Company has assumed defense of the matter subject to a reservation of rights and objection to the claim for indemnification. Neither the Company nor its predecessors ever mined, manufactured, produced, or distributed asbestos fiber, the material that allegedly caused the injury underlying this action. The Company does not expect that this claim will have a material adverse effect on its financial position, results of operations or liquidity. Moreover, during 2012, the Company secured insurance coverage that will help to reimburse the defense costs and potential indemnity obligations of its former operating unit relating to these claims. The Company intends to vigorously defend all currently active actions, and it does not anticipate that this action will have a material adverse effect on its financial position, results of operations or liquidity. However, the outcomes of any legal action cannot be predicted and, therefore, there can be no assurance that this will be the case. Insurance The Company maintains insurance coverage for most insurable aspects of its business and operations. The Company’s insurance programs, including, but not limited to, health, general liability, and workers’ compensation, have varying coverage limits depending upon the type of insurance. For the three and nine months ended September 30, 2021, insurance expense, including insurance premiums related to the excess claim coverage and claims incurred for continuing operations, was $0.3 million and $1.5 million, respectively. The Company’s consolidated balance sheets include amounts representing its probable estimated liability related to insurance-related claims that are known and have been asserted against the Company, and for insurance-related claims that are believed to have been incurred but had not yet been reported as of September 30, 2021. As of September 30, 2021, the Company provided $0.4 million cash collateralized in letters of credit and $0.6 million of non-depleting cash collateral as security for possible general liability and workers’ compensation claims. Executive Severance On September 30, 2021, the Company had outstanding severance arrangements with officers and senior management. The Company’s maximum commitment under all such arrangements, which would apply if the employees covered by these arrangements were each terminated without cause, was $2.8 million on September 30, 2021.

STOCK-BASED COMPENSATION PLANS

STOCK-BASED COMPENSATION PLANS	9 Months Ended
	Sep. 30, 2021
STOCK-BASED COMPENSATION PLANS
STOCK-BASED COMPENSATION PLANS	NOTE 11—STOCK-BASED COMPENSATION PLANS During the first nine months of 2021, the Company granted 164,388 service-based restricted stock awards under the 2015 Equity Incentive Plan, as amended and restated on May 12, 2020 (the “2015 Plan”), at a grant date fair value of $3.29 per share, to its non-employee directors, which vest in full on February 4, 2022. During the first nine months of 2021, the Company granted 307,616 service-based restricted stock units under the 2021 long-term incentive (“LTI”) program and the 2015 Plan at a grant date fair value of $3.48 per share. These service-based restricted stock units could be paid in cash or shares at the election of the Compensation Committee of the Board of Directors and shall vest in full on March 31, 2024. During the first nine months of 2021, the Company also granted performance-based awards under the 2021 LTI program and the 2015 Plan with an aggregate cash value of approximately $2.2 million, which could be paid in cash or shares at the election of the Compensation Committee of the Board of Directors. The 2021 performance-based awards have three awards earned at 200% of the target. The annual achievement levels are averaged over the three-year performance period and the earned amounts, if any, vest on March 31, 2024. The Company includes these cash-based awards in other current liabilities on the consolidated balance sheet, effective as of April 2021. In addition, during the first nine months of 2021, the Company granted service-based restricted stock units and performance-based restricted stock units to two employees. On May 17, 2021, the Company granted 37,500 service-based restricted stock units and performance-based restricted stock units covering a target number of 37,500, and a maximum number of 75,000, shares of common stock, as an inducement award outside of the 2015 Plan at a grant date fair value of $5.00 per share. The service-based restricted stock units vest in full on May 17, 2022 and the earned amounts of the performance-based restricted stock units, if any, vest on March 31, 2024. The performance-based awards have three two During the first nine months of 2020, the Company granted 580,312 service-based restricted stock units and 1,178,213 performance-based restricted stock units under the 2020 LTI program and the 2015 Plan, at a grant date fair value of $1.22 per share, which could be paid in cash or shares at the election of the Compensation Committee of the Board of Directors. The service-based restricted stock units vest in equal annual installments over a period of three years. The 2020 performance-based awards have three The Company previously granted (i) performance-based restricted stock units under the 2016 LTI program, which were scheduled to vest if the Company achieved a per share stock price of $5.50 for 30 consecutive trading days prior to August 5, 2021, (ii) performance-based restricted stock units under the 2017 LTI program, which were scheduled to vest if the Company achieved a per share stock price of $6.00 for 30 consecutive trading days prior to March 31, 2021 (pursuant to an extension from the initial vesting date of March 31, 2020, which extension was approved by the Compensation Committee in February 2020), and (iii) performance-based restricted stock units under the 2018 LTI program, which were scheduled to vest if the Company achieved a per share stock price of at least $5.00 for any period of 30 consecutive trading days prior to June 30, 2021 (collectively, the “LTI Performance Awards”). On March 5, 2021, the Compensation Committee of the Board of Directors extended the performance period for each of the LTI Performance Awards to December 31, 2022. In accordance with ASC Topic 718, “Compensation—Stock Compensation” (“ASC 718”), the Company conducted a lattice valuation model in order to revalue the market price for the LTI Performance Awards at the March 5, 2021 modification date. The 2018 LTI program met the market objective by achieving a per share stock price of $5.00 for 30 consecutive days, and approximately 261,463 shares will vest for recipients remaining employed through December 31, 2022. The modification resulted in an approximately $0.8 million incremental cost, which will be expensed over a twenty-month period starting in April 2021. During the first nine months of 2021, the Compensation Committee of the Board of Directors approved modifying the 2020 performance-based awards granted in 2020. This modification resulted in the adjustment of the 2021 and 2022 performance goals; in addition, the three-year average payout level for each performance objective will replace the actual payout level for any fiscal year (including, without limitation, 2020) where the actual payout is less than the three-year average. As of September 30, 2021, the payout would be 549,181 at threshold, 1,098,362 at target, and 2,196,724 at maximum. The grant price was adjusted from $1.22 per share to $3.49 share per the modification date of March 5, 2021. During the first nine months of 2021, the Compensation Committee approved modifying the 2019 performance-based restricted stock unit awards. The performance goal for 2020 was year-end backlog performance expressed in margin dollars. Because of COVID-19, the Company’s ability to book backlog in the normal course was impaired during 2020, particularly in Florida, New York, and Canada and with respect to new customers. As a result, the Compensation Committee authorized an adjustment to the 2020 performance results to add $51.9 million of orders to December 31, 2020 backlog that were booked in early 2021 but delayed due to the impact of the COVID-19 pandemic, which resulted in a payout of 156,014 shares under the 2015 Plan. While the majority of restricted stock units and awards were granted as equity, in accordance with ASC 718, the Company has two cash-based plans that are classified as a liability. Stock-based compensation expense for the three months ended September 30, 2021 and 2020 was $1.1 million and $0.6 million, respectively, and for the nine months ended September 30, 2021 and 2020 was $2.6 million and $1.7 million, respectively, and was included in general and administrative expenses on the Company’s unaudited condensed consolidated statements of operations.

OTHER SUPPLEMENTAL INFORMATION

OTHER SUPPLEMENTAL INFORMATION	9 Months Ended
	Sep. 30, 2021
OTHER SUPPLEMENTAL INFORMATION
OTHER SUPPLEMENTAL INFORMATION	NOTE 12—OTHER SUPPLEMENTARY INFORMATION The following table summarizes other current assets included on the Company's unaudited condensed consolidated balance sheets: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) September 30, 2021 December 31, 2020 Sales tax receivable - Canada ​ $ 4,245 ​ $ 2,097 Unamortized commercial insurance premiums ​ ​ 3,321 ​ ​ 1,903 Prepaid expenses ​ ​ 1,354 ​ ​ 432 Letters of credit ​ ​ 883 ​ ​ 474 Cash collateral on commercial insurance claims ​ ​ 595 ​ ​ 585 Surety bond ​ ​ 500 ​ ​ 45 Workers' compensation refund ​ ​ - ​ ​ 265 Prepaid health insurance premiums ​ ​ - ​ ​ 207 Other short-term assets ​ ​ 628 ​ ​ 449 Total ​ $ 11,526 ​ $ 6,457 ​ The following table summarizes other current liabilities included on the Company's unaudited condensed consolidated balance sheets: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) September 30, 2021 December 31, 2020 Sales tax payable - Canada ​ $ 4,601 ​ $ 2,372 Accrued job costs ​ ​ 2,985 ​ ​ 1,081 Short-term lease liability ​ ​ 1,603 ​ ​ 1,362 Accrued stock compensation - liability ​ ​ 1,082 ​ ​ 387 Accrued workers' compensation and general liabilities ​ ​ 304 ​ ​ 506 Other accrued expenses ​ ​ 136 ​ ​ 1,462 Total ​ $ 10,711 ​ $ 7,170 ​

BUSINESS AND BASIS OF PRESENT_2

BUSINESS AND BASIS OF PRESENTATION (Policies)	9 Months Ended
	Sep. 30, 2021
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Basis of Presentation	Williams Industrial Services Group Inc. (together with its wholly owned subsidiaries, “Williams,” the “Company,” “we,” “us” or “our,” unless the context indicates otherwise) was initially formed in 1998 as GEEG Holdings, LLC, a Delaware limited liability company, and in 2001, changed its name to “Global Power Equipment Group Inc.,” a Delaware corporation and became the successor to GEEG Holdings, LLC. Effective June 29, 2018, the Company changed its name to Williams Industrial Services Group Inc. to better align its name with the Williams business, and the Company’s stock now trades on the NYSE American LLC under the ticker symbol “WLMS.” Williams has been safely helping plant owners and operators enhance asset value for more than 50 years. It provides a broad range of construction, maintenance, and support services to infrastructure customers in energy, power, and industrial end markets. The Company’s mission is to be the preferred provider of construction, maintenance, and specialty services through commitment to superior safety performance, focus on innovation, and dedication to delivering unsurpassed value to its customers. Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) on a basis consistent with that used in the Annual Report on Form 10-K for the year ended December 31, 2020, filed by the Company with the U.S. Securities and Exchange Commission (“SEC”) on March 31, 2021 (the “2020 Report”). In the opinion of management, the unaudited condensed consolidated financial statements reflect all adjustments, including all normal recurring adjustments, necessary to present fairly the unaudited condensed consolidated balance sheets and statements of operations, comprehensive income, stockholders’ equity and cash flows for the periods indicated. All significant intercompany transactions have been eliminated. The December 31, 2020 unaudited condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by GAAP. These unaudited condensed consolidated interim financial statements and accompanying notes should be read in conjunction with the audited consolidated financial statements and accompanying notes included in the 2020 Report. Accounting measurements at interim dates inherently involve greater reliance on estimates than at year-end. The results of operations for any interim period are not necessarily indicative of operations to be expected for the full year. The Company reports on a fiscal quarter basis utilizing a “modified” 4-4-5 calendar (modified in that the fiscal year always begins on January 1 and ends on December 31). However, the Company has continued to label its quarterly information using a calendar convention. The effects of this practice are modest and only exist when comparing interim period results. The reporting periods and corresponding fiscal interim periods are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Reporting Interim Period ​ Fiscal Interim Period ​ 2021 2020 Three Months Ended March 31 ​ January 1, 2021 to April 4, 2021 ​ January 1, 2020 to March 29, 2020 Three Months Ended June 30 ​ April 5, 2021 to July 4, 2021 ​ March 30, 2020 to June 28, 2020 Three Months Ended September 30 ​ July 5, 2021 to October 3, 2021 ​ June 29, 2020 to September 27, 2020
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements In December 2019, the Financial Accounting Standards Board issued Accounting Standards Update (“ASU”) 2019-12, “Income Taxes”, which simplifies the accounting for income taxes by removing certain exceptions for investments, intraperiod allocations and interim calculations, and adding guidance to reduce complexity in accounting for income taxes. The update is effective for annual periods beginning after December 15, 2020, and interim periods within those fiscal years. Early adoption is permitted. The Company historically did not rely on the exceptions in computing the tax provision. The Company adopted the guidance as of January 1, 2021. The adoption of ASU 2019-12 did not have a material impact on the Company's financial statements.

BUSINESS AND BASIS OF PRESENT_3

BUSINESS AND BASIS OF PRESENTATION (Tables)	9 Months Ended
	Sep. 30, 2021
BUSINESS AND BASIS OF PRESENTATION ORGANIZATION
Reporting periods and corresponding fiscal interim periods	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Reporting Interim Period ​ Fiscal Interim Period ​ 2021 2020 Three Months Ended March 31 ​ January 1, 2021 to April 4, 2021 ​ January 1, 2020 to March 29, 2020 Three Months Ended June 30 ​ April 5, 2021 to July 4, 2021 ​ March 30, 2020 to June 28, 2020 Three Months Ended September 30 ​ July 5, 2021 to October 3, 2021 ​ June 29, 2020 to September 27, 2020

LEASES (Tables)

LEASES (Tables)	9 Months Ended
	Sep. 30, 2021
LEASES
Schedule of components of lease expense	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, Lease Cost (in thousands) ​ 2021 ​ 2020 ​ 2021 ​ 2020 Operating lease cost ​ $ 619 ​ $ 850 ​ $ 1,711 ​ $ 2,950 Short-term lease cost ​ ​ 1,051 ​ ​ 505 ​ ​ 2,484 ​ ​ 1,972 Sublease income ​ ​ (5) ​ ​ — ​ ​ (5) ​ ​ — Total lease cost ​ $ 1,665 ​ $ 1,355 ​ $ 4,190 ​ $ 4,922
Schedule of right-of use assets and lease liabilities	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Lease Assets/Liabilities (in thousands) ​ Balance Sheet Classification ​ September 30, 2021 ​ December 31, 2020 Lease Assets ​ ​ ​ ​ ​ ​ ​ ​ Right-of-use assets ​ Other long-term assets ​ $ 1,583 ​ $ 2,029 ​ ​ ​ ​ ​ ​ ​ ​ ​ Lease Liabilities ​ ​ ​ ​ ​ ​ ​ ​ Short-term lease liabilities ​ Other current liabilities ​ $ 1,603 ​ $ 1,362 Long-term lease liabilities ​ Other long-term liabilities ​ ​ 673 ​ ​ 1,011 Total lease liabilities ​ ​ ​ $ 2,276 ​ $ 2,373
Schedule of supplemental information	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nine Months Ended September 30, (dollars in thousands) ​ 2021 ​ 2020 Cash paid for amounts included in the measurement of lease liabilities: ​ ​ ​ ​ ​ ​ Operating cash used by operating leases ​ $ 1,810 ​ $ 3,388 Right-of-use assets obtained in exchange for new operating lease liabilities ​ ​ 1,549 ​ ​ 2,226 Weighted-average remaining lease term - operating leases ​ ​ 1.47 years ​ ​ 1.71 years Weighted-average remaining lease term - finance leases ​ ​ 2.48 years ​ ​ 3.48 years Weighted-average discount rate - operating leases ​ ​ 9% ​ ​ 9% Weighted-average discount rate - finance leases ​ ​ 9% ​ ​ 9%
Schedule of remaining lease payments under operating leases	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Operating Leases ​ Finance Leases Nine Months Ended September 30, ​ (in thousands) Remainder of 2021 ​ $ 582 ​ $ 2 2022 ​ ​ 1,372 ​ ​ 6 2023 ​ ​ 360 ​ ​ 6 2024 ​ ​ 103 ​ ​ 1 2025 ​ ​ 3 ​ ​ — Total lease payments ​ $ 2,420 ​ $ 15 Less: interest ​ ​ (159) ​ ​ — Present value of lease liabilities ​ $ 2,261 ​ $ 15
Schedule of remaining lease payments under finance leases	Total remaining lease payments under the Company’s operating and finance leases were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Operating Leases ​ Finance Leases Nine Months Ended September 30, ​ (in thousands) Remainder of 2021 ​ $ 582 ​ $ 2 2022 ​ ​ 1,372 ​ ​ 6 2023 ​ ​ 360 ​ ​ 6 2024 ​ ​ 103 ​ ​ 1 2025 ​ ​ 3 ​ ​ — Total lease payments ​ $ 2,420 ​ $ 15 Less: interest ​ ​ (159) ​ ​ — Present value of lease liabilities ​ $ 2,261 ​ $ 15

CHANGES IN BUSINESS (Tables)

CHANGES IN BUSINESS (Tables)	9 Months Ended
	Sep. 30, 2021
Discontinued operations disposed of by sale
Schedule of Financial Information of Disposal Group	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) September 30, 2021 ​ December 31, 2020 Liabilities: ​ ​ ​ ​ ​ ​ Current liabilities of discontinued operations ​ $ 188 ​ $ 342 Liability for pension obligation ​ ​ 2,347 ​ ​ 2,670 Liability for uncertain tax positions ​ ​ 1,854 ​ ​ 1,796 Long-term liabilities of discontinued operations ​ ​ 4,201 ​ ​ 4,466 Total liabilities of discontinued operations ​ $ 4,389 ​ $ 4,808 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, (in thousands) 2021 2020 ​ 2021 2020 General and administrative expenses ​ $ 5 ​ $ 14 ​ $ 39 ​ $ 20 Loss (gain) on disposal - Electrical Solutions ​ ​ (17) ​ ​ — ​ ​ (245) ​ ​ 45 Interest expense ​ ​ 46 ​ ​ 52 ​ ​ 76 ​ ​ 157 Income (loss) from discontinued operations before income tax ​ ​ (34) ​ ​ (66) ​ ​ 130 ​ ​ (222) Income tax expense (benefit) ​ ​ 22 ​ ​ 24 ​ ​ 59 ​ ​ (56) Income (loss) from discontinued operations ​ $ (56) ​ $ (90) ​ $ 71 ​ $ (166)

REVENUE (Tables)

REVENUE (Tables)	9 Months Ended
	Sep. 30, 2021
REVENUE.
Schedule of disaggregation of revenue	Disaggregated revenue by type of contract was as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, (in thousands) ​ 2021 ​ 2020 ​ 2021 ​ 2020 Cost-plus reimbursement contracts ​ $ 63,363 ​ $ 57,123 ​ $ 201,027 ​ $ 182,689 Fixed-price contracts ​ ​ 9,988 ​ ​ 9,117 ​ ​ 24,746 ​ ​ 22,247 Total ​ $ 73,351 ​ $ 66,240 ​ $ 225,773 ​ $ 204,936 ​ Disaggregated revenue by the geographic area where the work was performed was as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, (in thousands) ​ 2021 ​ 2020 ​ 2021 ​ 2020 United States ​ $ 64,379 ​ $ 57,984 ​ $ 197,287 ​ $ 178,447 Canada ​ ​ 8,972 ​ ​ 8,256 ​ ​ 28,486 ​ ​ 26,489 Total ​ $ 73,351 ​ $ 66,240 ​ $ 225,773 ​ $ 204,936
Costs and estimated earnings in excess of billings or billings in excess of costs and estimated earnings	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, (in thousands) ​ 2021 ​ 2020 ​ 2021 ​ 2020 Costs incurred on uncompleted contracts ​ $ 66,590 ​ $ 57,582 ​ $ 203,561 ​ $ 180,014 Earnings recognized on uncompleted contracts ​ 6,761 ​ 8,658 ​ 22,212 ​ 24,922 Total ​ ​ 73,351 ​ 66,240 ​ ​ 225,773 ​ 204,936 Less—billings to date ​ ​ (63,034) ​ (60,850) ​ ​ (215,456) ​ (199,546) Net ​ $ 10,317 ​ $ 5,390 ​ $ 10,317 ​ $ 5,390 Contract assets ​ $ 12,811 ​ $ 8,795 ​ $ 12,811 ​ $ 8,795 Contract liabilities ​ ​ (2,494) ​ (3,405) ​ ​ (2,494) ​ (3,405) Net ​ $ 10,317 ​ $ 5,390 ​ $ 10,317 ​ $ 5,390
Schedule of transaction price allocated to the remaining performance obligations	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ Remainder of 2021 ​ 2022 ​ 2023 ​ Thereafter ​ Total Remaining performance obligations ​ $ 73,416 ​ $ 133,826 ​ $ 95,098 ​ $ 370,166 ​ $ 672,506

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	9 Months Ended
	Sep. 30, 2021
EARNINGS PER SHARE
Schedule of calculation of basic and diluted earnings per common share	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, (in thousands, except share and per share data) 2021 ​ 2020 ​ 2021 2020 Income from continuing operations ​ $ 794 ​ $ 1,116 ​ $ 1,857 ​ $ 2,696 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Basic earnings per common share: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average common shares outstanding ​ ​ 25,699,545 ​ ​ 24,689,337 ​ ​ 25,306,130 ​ ​ 23,304,059 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Basic earnings per common share ​ $ 0.03 ​ $ 0.04 ​ $ 0.07 ​ $ 0.12 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Diluted earnings per common share: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average common shares outstanding ​ ​ 25,699,545 ​ ​ 24,689,337 ​ ​ 25,306,130 ​ ​ 23,304,059 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Dilutive effect: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unvested portion of restricted stock units and awards ​ ​ 807,030 ​ ​ 494,969 ​ ​ 791,570 ​ ​ 532,739 Weighted average diluted common shares outstanding ​ ​ 26,506,575 ​ ​ 25,184,306 ​ 26,097,700 ​ ​ 23,836,798 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Diluted earnings per common share ​ $ 0.03 ​ $ 0.04 ​ $ 0.07 ​ $ 0.11
Schedule anti-dilutive potentially outstanding shares were not included in the calculation of diluted earnings (loss) per share	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, ​ 2021 ​ 2020 ​ 2021 2020 Unvested service-based restricted stock and restricted stock unit awards 16,666 ​ 391,601 ​ — ​ 262,705 Unvested performance- and market-based restricted stock unit awards 833,111 ​ 1,585,703 ​ 833,111 ​ 1,585,703

INCOME TAXES (Tables)

INCOME TAXES (Tables)	9 Months Ended
	Sep. 30, 2021
INCOME TAXES
Schedule of effective income tax expense rate for continuing operations	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, (in thousands) 2021 ​ 2020 ​ 2021 2020 Income tax (benefit) expenses ​ ($6) ​ $321 ​ $256 ​ $565 Effective income tax rate for continuing operations ​ -0.8% ​ 22.3% ​ 12.1% ​ 17.3%

DEBT (Tables)

DEBT (Tables)	9 Months Ended
	Sep. 30, 2021
DEBT
Schedule of debt	​ ​ ​ ​ ​ ​ ​ ​ (in thousands) September 30, 2021 December 31, 2020 Revolving credit facility ​ $ 4,672 ​ $ 352 Term loan, current portion of long-term debt ​ ​ 1,050 ​ ​ 1,050 Current debt ​ $ 5,722 ​ $ 1,402 ​ ​ ​ ​ ​ ​ ​ Term loan, noncurrent portion of long-term debt ​ $ 33,163 ​ $ 33,950 Unamortized debt discount from refinancing to new loan ​ ​ (841) ​ ​ (991) Unamortized deferred financing costs ​ ​ (1,894) ​ ​ (2,231) Long-term debt, net ​ $ 30,428 ​ $ 30,728 ​ ​ ​ ​ ​ ​ ​ Total debt, net ​ $ 36,150 ​ $ 32,130
Schedule of deferred financing costs amortized to Interest Expense	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ Nine Months Ended September 30, (in thousands) ​ 2021 ​ 2020 ​ 2021 ​ 2020 Term loan ​ $ 112 ​ $ 110 ​ $ 337 ​ $ 330 Revolving credit facility ​ ​ 96 ​ ​ 72 ​ ​ 286 ​ ​ 217 Total ​ $ 208 ​ $ 182 ​ $ 623 ​ $ 547
Schedule of unamortized deferred financing costs	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) Location September 30, 2021 ​ December 31, 2020 Term loan ​ Long-term debt, net ​ $ 1,894 ​ $ 2,231 Revolving credit facility ​ Other long-term assets ​ ​ 1,604 ​ ​ 1,890 Total ​ ​ ​ $ 3,498 ​ $ 4,121

OTHER SUPPLEMENTAL INFORMATION

OTHER SUPPLEMENTAL INFORMATION (Tables)	9 Months Ended
	Sep. 30, 2021
OTHER SUPPLEMENTAL INFORMATION
Schedule of other current assets	​ ​ ​ ​ ​ ​ ​ ​ (in thousands) September 30, 2021 December 31, 2020 Sales tax receivable - Canada ​ $ 4,245 ​ $ 2,097 Unamortized commercial insurance premiums ​ ​ 3,321 ​ ​ 1,903 Prepaid expenses ​ ​ 1,354 ​ ​ 432 Letters of credit ​ ​ 883 ​ ​ 474 Cash collateral on commercial insurance claims ​ ​ 595 ​ ​ 585 Surety bond ​ ​ 500 ​ ​ 45 Workers' compensation refund ​ ​ - ​ ​ 265 Prepaid health insurance premiums ​ ​ - ​ ​ 207 Other short-term assets ​ ​ 628 ​ ​ 449 Total ​ $ 11,526 ​ $ 6,457
Schedule of other current liabilities	​ ​ ​ ​ ​ ​ ​ ​ (in thousands) September 30, 2021 December 31, 2020 Sales tax payable - Canada ​ $ 4,601 ​ $ 2,372 Accrued job costs ​ ​ 2,985 ​ ​ 1,081 Short-term lease liability ​ ​ 1,603 ​ ​ 1,362 Accrued stock compensation - liability ​ ​ 1,082 ​ ​ 387 Accrued workers' compensation and general liabilities ​ ​ 304 ​ ​ 506 Other accrued expenses ​ ​ 136 ​ ​ 1,462 Total ​ $ 10,711 ​ $ 7,170

LEASES (Details)

LEASES (Details) - USD ($) $ in Millions	Sep. 02, 2021	Sep. 30, 2021
Lessee, Lease, Description [Line Items]
Leases contain renewal options		true
Lease agreement term	10 years
Lease Liabilities	$ 3.5
Lease liability payment due	$ 2.3
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term		1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term		10 years

LEASES - Lease Cost (Details)

LEASES - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Components of lease expense:
Operating lease cost	$ 619	$ 850	$ 1,711	$ 2,950
Short-term lease cost	1,051	505	2,484	1,972
Sublease income	(5)		(5)
Total lease cost	$ 1,665	$ 1,355	$ 4,190	$ 4,922

LEASES - Right-of use Assets an

LEASES - Right-of use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
LEASES
Right-of-use assets	$ 1,583	$ 2,029
Financial position	Other long-term assets	Other long-term assets
Short-term lease liabilities	$ 1,603	$ 1,362
Financial position	Other current liabilities	Other current liabilities
Long-term lease liabilities	$ 673	$ 1,011
Financial position	Other long-term liabilities	Other long-term liabilities
Total lease liabilities	$ 2,276	$ 2,373

LEASES - Supplemental Informati

LEASES - Supplemental Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
LEASES
Cash paid for amounts included in the measurement of lease liabilities: Operating cash used by operating leases	$ 1,810	$ 3,388
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 1,549	$ 2,226
Weighted-average remaining lease term - operating leases	1 year 5 months 19 days	1 year 8 months 15 days
Weighted-average remaining lease term - finance leases	2 years 5 months 23 days	3 years 5 months 23 days
Weighted-average discount rate - operating leases	9.00%	9.00%
Weighted-average discount rate - finance leases	9.00%	9.00%

LEASES - Remaining Lease Paymen

LEASES - Remaining Lease Payments (Details) $ in Thousands	Sep. 30, 2021USD ($)
Operating leases maturities:
Remainder of 2021	$ 582
2022	1,372
2023	360
2024	103
2025	3
Total lease payments	2,420
Less: interest	(159)
Present value of lease liabilities	2,261
Finance leases maturities:
Remainder of 2021	2
2022	6
2023	6
2024	1
Total lease payments	15
Present value of lease liabilities	$ 15

CHANGES IN BUSINESS - Discontin

CHANGES IN BUSINESS - Discontinued Operation and Disposition (Details) - USD ($) $ in Thousands	May 12, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Jul. 11, 2018
Liabilities:
Current liabilities of discontinued operations		$ 188		$ 188		$ 342
Long-term liabilities of discontinued operations		4,201		4,201		4,466
Income (loss) before income taxes
Interest expense, net		(1,227)	$ (1,541)	(3,733)	$ (4,640)
Income (loss) from discontinued operations before income tax		(34)	(66)	130	(222)
Income tax (benefit) expense		22	24	59	(56)
Income (loss) from discontinued operations		(56)	(90)	71	(166)
Discontinued operations, disposed of by means other than sale | Electrical Solutions | Pension
Liabilities:
Liability for pension obligation							$ 2,900
Decrease in liability for pension obligation	$ 200
Income (loss) before income taxes
Expected Periodic Payment	$ 300
Discontinued operations disposed of by sale
Income (loss) before income taxes
General and administrative expenses		5	14	39	20
Interest expense, net		46	52	76	157
Income (loss) from discontinued operations before income tax		(34)	(66)	130	(222)
Income tax (benefit) expense		22	24	59	(56)
Income (loss) from discontinued operations		(56)	$ (90)	71	(166)
Discontinued operations disposed of by sale | Electrical Solutions And Mechanical Solutions
Assets and liabilities
Assets of discontinued operations		0		0		0
Liabilities:
Current liabilities of discontinued operations		188		188		342
Liability for pension obligation		2,347		2,347		2,670
Liability for uncertain tax positions		1,854		1,854		1,796
Long-term liabilities of discontinued operations		4,201		4,201		4,466
Total liabilities of discontinued operations		4,389		4,389		$ 4,808
Discontinued operations, held-for-sale or disposed of by sale | Electrical Solutions
Income (loss) before income taxes
Loss (gain) on disposal of discontinued operations		$ (17)		$ (245)	$ 45

REVENUE - Disaggregation of rev

REVENUE - Disaggregation of revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of revenue
Revenue	$ 73,351	$ 66,240	$ 225,773	$ 204,936
Variable consideration
Maximum limited warranty term			2 years
United States
Disaggregation of revenue
Revenue	64,379	57,984	$ 197,287	178,447
Canada
Disaggregation of revenue
Revenue	8,972	8,256	28,486	26,489
Cost-plus reimbursement contracts
Disaggregation of revenue
Revenue	63,363	57,123	201,027	182,689
Fixed-price contracts
Disaggregation of revenue
Revenue	$ 9,988	$ 9,117	$ 24,746	$ 22,247

REVENUE - Contract assets and t

REVENUE - Contract assets and the contract liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Changes in the contract assets and the contract liabilities
Costs incurred on uncompleted contracts	$ 66,590	$ 57,582	$ 203,561	$ 180,014
Earnings recognized on uncompleted contracts	6,761	8,658	22,212	24,922
Total	73,351	66,240	225,773	204,936
Less - billings to date	(63,034)	(60,850)	(215,456)	(199,546)
Net	10,317	5,390	10,317	5,390
Contract assets	12,811	8,795	12,811	8,795	$ 7,969
Contract liabilities	(2,494)	$ (3,405)	(2,494)	$ (3,405)	$ (2,529)
Revenue recognized from contracts in progress liability balance at December 31, 2020	$ 1,100		$ 2,200

REVENUE - Remaining Performance

REVENUE - Remaining Performance Obligations (Details) $ in Thousands	Sep. 30, 2021USD ($)
Transaction price allocated to the remaining performance obligations
Remaining performance obligation	$ 672,506
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01
Transaction price allocated to the remaining performance obligations
Remaining performance obligation	$ 73,416
Expected timing of satisfaction	3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Transaction price allocated to the remaining performance obligations
Remaining performance obligation	$ 133,826
Expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Transaction price allocated to the remaining performance obligations
Remaining performance obligation	$ 95,098
Expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Transaction price allocated to the remaining performance obligations
Remaining performance obligation	$ 370,166
Expected timing of satisfaction	1 year

EARNINGS PER SHARE (Details)

EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
EARNINGS PER SHARE
Common stock, shares outstanding	25,915,502	25,336,442	25,915,502	25,336,442	25,336,442
Net income (basic and diluted):
Income from continuing operations	$ 794	$ 1,116	$ 1,857	$ 2,696
Basic earnings per common share:
Weighted average common shares outstanding	25,699,545	24,689,337	25,306,130	23,304,059
Basic earnings per common share	$ 0.03	$ 0.04	$ 0.07	$ 0.12
Diluted earnings per common share:
Weighted average common shares outstanding	25,699,545	24,689,337	25,306,130	23,304,059
Diluted effect:
Unvested portion of restricted stock units and awards	807,030	494,969	791,570	532,739
Weighted average diluted common shares outstanding	26,506,575	25,184,306	26,097,700	23,836,798
Diluted earnings per common share	$ 0.03	$ 0.04	$ 0.07	$ 0.11
Restricted Stock
EARNINGS PER SHARE
Unvested restricted stock included in reportable shares	215,956	550,857	215,956	550,857

EARNINGS PER SHARE - Antidiluti

EARNINGS PER SHARE - Antidilutive (Details) - Restricted Stock - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Service vesting
Anti-dilutive shares	16,666	391,601		262,705
Performance And Market Vesting
Anti-dilutive shares	833,111	1,585,703	833,111	1,585,703

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income tax (benefit) expense	$ (6)	$ 321	$ 256	$ 565
Effective income tax rate for continuing operations	(0.80%)	22.30%	12.10%	17.30%
Tax expense (benefit) computed at the maximum U.S. statutory rate, as a percent			21.00%
Increase (decrease) in indefinite-lived deferred tax assets related to interest expense			$ 3,100
Amount of future financial taxable income needed to realize deferred tax assets	$ 270,400	$ 268,500	270,400	$ 268,500
Undistributed earnings of the foreign subsidiaries	8,300		8,300
Amount of future financial taxable income needed to realize deferred tax assets	12,300		12,300
Deferred tax liabilities, indefinite-lived intangibles	2,100		2,100
Increase (decrease) in Income Taxes	300	50	400
Deferred Federal Employer Payroll Taxes, Coronavirus Aid, Relief and Economic Security Act	4,900		4,900
Indefinite lived deferred tax liabilities	6,900		6,900
Increase in favorable tax adjustment	600
Increase in income tax adjustment due to bankruptcy	800
Increase in indefinite lived assets	300		300
Long Term Liabilities Of Discontinued Operations And Other Long Term Liabilities
Unrecognized tax benefits	3,000	2,800	3,000	2,800
Accrued interest and penalties related to uncertain income tax positions	1,400		1,400
Long Term Liabilities Of Discontinued Operations And Other Long Term Liabilities | Discontinued Operations
Unrecognized tax benefits	1,900	$ 1,700	1,900	$ 1,700
Accrued interest and penalties related to uncertain income tax positions	$ 800		800
Canada
Increase (decrease) in Income Taxes			$ 100

DEBT (Details)

DEBT (Details) - USD ($)	Dec. 16, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Debt
Current portion of term loan		$ 1,050,000		$ 1,050,000		$ 1,050,000
Current debt		5,722,000		5,722,000		1,402,000
Unamortized deferred financing fees		(3,498,000)		(3,498,000)		(4,121,000)
Long-term debt, net		30,428,000		30,428,000		30,728,000
Total debt, net		36,150,000		36,150,000		32,130,000
Amounts drawn upon letters of credit		0		0
Cash collateral for letters of credit		400,000		400,000
Amortization of deferred financing costs		208,000	$ 182,000	623,000	$ 546,000
Scheduled maturities of the New Centre Lane Facility
Total debt, net		36,150,000		$ 36,150,000		32,130,000
If Total Leverage Ratio is Greater Than 3.00
Debt
Interest rate if required threshold leverage ratio is maintained				50.00%
If Total Leverage Ratio is Equal to or Less Than 3.00 and Greater Than 2.00
Debt
Interest rate if required threshold leverage ratio is maintained				25.00%
Term Loan Facility
Debt
Default spread on interest rate (as a percent)				2.00%
Threshold excess cash flow				$ 500,000
Term Loan Facility | First Anniversary of Closing Date
Debt
Prepayment premium, percentage				3.00%
Term Loan Facility | Second Anniversary of Closing Date
Debt
Prepayment premium, percentage				2.00%
Term Loan Facility | Third Anniversary of Closing Date
Debt
Prepayment premium, percentage				1.00%
Term Loan Facility | Minimum
Debt
Outstanding principal that can be prepaid in whole or in part		1,000,000		$ 1,000,000
Revolving Credit Facility
Debt
Cash collateral for letters of credit		400,000		400,000
Revolving Credit Facility | Minimum
Debt
Required minimum prepayment amount				0
Term loan
Debt
Maximum borrowing capacity	$ 50,000,000
Term loan		33,163,000		33,163,000		33,950,000
Current portion of term loan		1,050,000		1,050,000		1,050,000
Unamortized debt discount from refinancing to new loan		(841,000)		(841,000)		(991,000)
Unamortized deferred financing fees		(1,894,000)		(1,894,000)		(2,231,000)
Total debt, net		34,200,000		34,200,000
Amortization of deferred financing costs		112,000	110,000	$ 337,000	330,000
Current interest rate (as a percent)				9.00%
Interest rate if required threshold leverage ratio is maintained				8.50%
Scheduled maturities of the New Centre Lane Facility
Total debt, net		34,200,000		$ 34,200,000
Term loan | Minimum
Debt
Threshold total leverage ratio under debt instrument				2.50
Term loan | Maximum
Debt
Threshold total leverage ratio under debt instrument				2.50
Default spread on interest rate (as a percent)				2.50%
Term loan | Long-term debt, net
Debt
Unamortized deferred financing fees		(1,894,000)		$ (1,894,000)		(2,231,000)
Term loan | Base Rate loans
Debt
Interest rate percentage (as a percent)				9.00%
Term loan | LIBOR-based loans
Debt
Interest rate percentage (as a percent)				8.50%
Term loan | LIBOR-based loans | Minimum
Debt
Interest rate if required threshold leverage ratio is maintained				1.00%
Floor rate (as a percent)				1.00%
Closing Date Term Loan
Debt
Maximum borrowing capacity	35,000,000
Delayed Draw Term Loan Facility
Debt
Maximum borrowing capacity	15,000,000
Senior Secured Asset-Based Revolving Line Of Credit
Debt
Maximum borrowing capacity	30,000,000
Current debt		4,672,000		$ 4,672,000		352,000
Amortization of deferred financing costs		96,000	$ 72,000	$ 286,000	$ 217,000
Floor rate (as a percent)				1.00%
Unused line fee (as a percent)				0.25%
Collateral monitoring fee				$ 2,500
Early termination fee				2.00%
Senior Secured Asset-Based Revolving Line Of Credit | If Early Termination Occurs on or Prior to First Anniversary of Closing Date
Debt
Early termination fee				1.00%
Senior Secured Asset-Based Revolving Line Of Credit | If Early Termination Occurs After First Anniversary of Closing Date
Debt
Fronting fee				0.25%
Senior Secured Asset-Based Revolving Line Of Credit | Other Noncurrent Assets
Debt
Unamortized deferred financing fees		(1,604,000)		$ (1,604,000)		(1,890,000)
Senior Secured Asset-Based Revolving Line Of Credit | Base Rate loans
Debt
Interest rate percentage (as a percent)				1.25%
Senior Secured Asset-Based Revolving Line Of Credit | LIBOR-based loans
Debt
Interest rate percentage (as a percent)				2.25%
Senior Secured Asset-Based Revolving Line Of Credit | Canadian Dollar Offered Rate
Debt
Floor rate (as a percent)				1.00%
Default spread on interest rate (as a percent)				2.00%
Swing Loan Member
Debt
Maximum borrowing capacity		3,000,000		$ 3,000,000
Letters of credit
Debt
Maximum borrowing capacity		2,000,000		2,000,000
Outstanding borrowings		500,000		500,000
Canadian Dollar Loans
Debt
Maximum borrowing capacity		5,000,000		5,000,000
New Centre Lane Facility
Debt
Maximum borrowing capacity	$ 35,000,000
Loan term (in years)	4 years
Payment Surety Bond
Debt
Outstanding surety bond		$ 67,100,000		$ 67,100,000
Performance Bond
Debt
Outstanding surety bond						$ 31,000,000

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Details) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2021USD ($)	Sep. 30, 2021USD ($)
COMMITMENTS AND CONTINGENCIES
Employee severance benefits	$ 2.8	$ 2.8
Insurance expense	0.3	1.5
Cash collateral for letters of credit	0.4	0.4
Non-depleting cash collateral	$ 0.6	$ 0.6

STOCK-BASED COMPENSATION PLANS

STOCK-BASED COMPENSATION PLANS (Details) $ / shares in Units, $ in Thousands	Jun. 15, 2021USD ($)$ / sharesshares	May 17, 2021$ / sharesshares	Mar. 05, 2021$ / shares	Sep. 30, 2021USD ($)employeeD$ / sharesshares	Sep. 30, 2020USD ($)$ / shares	Sep. 30, 2021USD ($)employeeD$ / sharesshares	Sep. 30, 2020USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental costs | $				$ 800		$ 800
Term of incremental costs being expensed						20 months
Stock-based compensation expense | $				$ 1,100	$ 600	$ 2,600	$ 1,700
Performance objective average payout term						3 years
Performance objective actual payout term			3 years
Threshold payout				549,181		549,181
Target payout				1,098,362		1,098,362
Maximum payout				2,196,724		2,196,724
Authorized adjustment amount to the performance results | $						$ 51,900
Stock-based compensation | $						$ 2,579	$ 1,703
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Adjusted grant price | $ / shares			$ 1.22
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Adjusted grant price | $ / shares			$ 3.49
2015 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)						156,014
2015 Plan | Performance and Service Vesting | Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value | $ / shares	$ 6.27
2015 Plan | Performance and Service Vesting | Common Stock | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	66,668
2021 long-term incentive program and 2015 plan | Performance vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate cash Value | $						$ 2,200
Vesting period						3 years
Performance objectives period						3 years
2021 long-term incentive program and 2015 plan | Performance vesting | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award payouts						50.00%
2021 long-term incentive program and 2015 plan | Performance vesting | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award payouts						200.00%
2016 LTI program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock price per share | $ / shares				$ 5.50		$ 5.50
Number of consecutive trading days | D				30		30
2017 LTI program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock price per share | $ / shares				$ 6		$ 6
Number of consecutive trading days | D				30		30
Outside of 2015 Plan | Performance and Service Vesting | Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value | $ / shares		$ 5
Outside of 2015 Plan | Performance and Service Vesting | Common Stock | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		75,000
2018 LTI program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting shares of restricted stock awards						261,463
Stock price per share | $ / shares				$ 5		$ 5
Number of consecutive trading days | D				30		30
2018 LTI program | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock price per share | $ / shares				$ 5		$ 5
Restricted Stock | Performance and Service Vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of employees | employee				2		2
Restricted Stock | 2015 Plan | Vesting on the date of grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting shares of restricted stock awards	25,000
Stock-based compensation expense | $	$ 200
Restricted Stock | 2015 Plan | Vesting on March 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting shares of restricted stock awards	8,333
Restricted Stock | 2015 Plan | Vesting on March 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting shares of restricted stock awards	8,333
Restricted Stock | 2015 Plan | Performance and Service Vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	41,666
Performance objectives period	2 years
Restricted Stock | 2015 Plan | Performance and Service Vesting | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	33,334
Award payouts	50.00%
Restricted Stock | 2015 Plan | Performance and Service Vesting | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award payouts	200.00%
Restricted Stock | 2021 long-term incentive program and 2015 plan | Service vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)						307,616
Weighted average grant date fair value | $ / shares				$ 3.48		$ 3.48
Restricted Stock | 2021 long-term incentive program and 2015 plan | Performance vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance objectives period						3 years
Restricted Stock | 2021 long-term incentive program and 2015 plan | Performance vesting | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award payouts						50.00%
Restricted Stock | 2021 long-term incentive program and 2015 plan | Performance vesting | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award payouts						200.00%
Restricted Stock | 2020 long-term incentive program and 2015 plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value | $ / shares					$ 1.22		$ 1.22
Restricted Stock | 2020 long-term incentive program and 2015 plan | Service vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)							580,312
Annual service objective term							3 years
Restricted Stock | 2020 long-term incentive program and 2015 plan | Performance vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)							1,178,213
Annual performance objective term							3 years
Target award opportunity (as a percent)							50.00%
Maximum performance resulting in awards (as a percent)							200.00%
Restricted Stock | 2020 long-term incentive program and 2015 plan | Performance vesting | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual performance objective term							3 years
Restricted Stock | Outside of 2015 Plan | Performance and Service Vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		37,500
Restricted Stock | Outside of 2015 Plan | Performance and Service Vesting | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		37,500
Restricted Stock | Non-employee director | 2015 Plan | Service vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)						164,388
Weighted average grant date fair value | $ / shares				$ 3.29		$ 3.29

OTHER SUPPLEMENTAL INFORMATIO_2

OTHER SUPPLEMENTAL INFORMATION - Other current assets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Unamortized commercial insurance premiums	$ 3,321	$ 1,903
Prepaid expenses	1,354	432
Letters of credit	883	474
Cash collateral on commercial insurance claims	595	585
Surety bond	500	45
Workers compensation refund		265
Prepaid health insurance premiums		207
Other short-term assets	628	449
Total	11,526	6,457
Canada
Sales tax receivable	$ 4,245	$ 2,097

OTHER SUPPLEMENTAL INFORMATIO_3

OTHER SUPPLEMENTAL INFORMATION - Other current liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Accrued job cost	$ 2,985	$ 1,081
Short-term lease liability	1,603	1,362
Accrued stock compensation - liability	1,082	387
Accrued workers compensation and general liabilities	304	506
Other accrued expenses	136	1,462
Total	10,711	7,170
Canada
Sales tax payable - Canada	$ 4,601	$ 2,372