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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 10-Q
       QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended JuneSeptember 30, 2021
OR
       TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
Commission File Number 001-36541
lmb-20210930_g1.jpg
LIMBACH HOLDINGS, INC.
(Exact name of registrant as specified in its charter)
Delaware, USA 46-5399422
(State or other jurisdiction of
incorporation or organization)
 (I.R.S. Employer Identification
No.)
   
1251 Waterfront Place, Suite 201
Pittsburgh, Pennsylvania
 15222
(Address of principal executive offices) (Zip Code)
1-412-359-2100
(Registrant’s telephone number, including area code)
Not Applicable
(Former name, former address and former fiscal year, if changed since last report)
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading Symbol(s)Name of Each Exchange on Which Registered
Common Stock, par value $0.0001 per shareLMBThe Nasdaq Stock Market LLC
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes      No  
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes       No  
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filerAccelerated filer
Non-accelerated filer☒   Smaller reporting company☒   
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes    No  
As of August 11,November 9, 2021, there were 10,267,84110,304,242 shares of the registrant’s common stock, $0.0001 par value per share, outstanding.


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LIMBACH HOLDINGS, INC.
Form 10-Q
TABLE OF CONTENTS


Table of Contents

Part IPART I. FINANCIAL INFORMATION
Item 1. Financial Statements
LIMBACH HOLDINGS, INC.
Condensed Consolidated Balance Sheets
(Unaudited)
(in thousands, except share and per share data)(in thousands, except share and per share data)June 30,
2021
December 31,
2020
(in thousands, except share and per share data)September 30, 2021December 31, 2020
ASSETSASSETS  ASSETS  
Current assets  
Current assets:Current assets:  
Cash and cash equivalentsCash and cash equivalents$27,693 $42,147 Cash and cash equivalents$33,302 $42,147 
Restricted cashRestricted cash113 113 Restricted cash113 113 
Accounts receivable, net94,615 85,767 
Accounts receivable (net of allowance for doubtful accounts of $285 and $266 as of September 30, 2021 and December 31, 2020, respectively)Accounts receivable (net of allowance for doubtful accounts of $285 and $266 as of September 30, 2021 and December 31, 2020, respectively)98,319 85,767 
Contract assetsContract assets70,815 67,098 Contract assets72,193 67,098 
Income tax receivableIncome tax receivable891 Income tax receivable217 — 
Other current assetsOther current assets5,599 4,292 Other current assets5,539 4,292 
Total current assetsTotal current assets199,726 199,417 Total current assets209,683 199,417 
Property and equipment, netProperty and equipment, net17,433 19,700 Property and equipment, net16,710 19,700 
Intangible assets, netIntangible assets, net11,473 11,681 Intangible assets, net11,386 11,681 
GoodwillGoodwill6,129 6,129 Goodwill6,129 6,129 
Operating lease right-of-use assetsOperating lease right-of-use assets16,852 18,751 Operating lease right-of-use assets15,802 18,751 
Deferred tax assetDeferred tax asset6,393 6,087 Deferred tax asset5,696 6,087 
Other assetsOther assets283 392 Other assets272 392 
Total assetsTotal assets$258,289 $262,157 Total assets$265,678 $262,157 
LIABILITIESLIABILITIESLIABILITIES
Current liabilities
Current liabilities:Current liabilities:
Current portion of long-term debtCurrent portion of long-term debt$8,454 $6,536 Current portion of long-term debt$8,460 $6,536 
Current operating lease liabilitiesCurrent operating lease liabilities4,122 3,929 Current operating lease liabilities4,061 3,929 
Accounts payable, including retainageAccounts payable, including retainage66,954 66,763 Accounts payable, including retainage70,895 66,763 
Contract liabilitiesContract liabilities39,179 46,648 Contract liabilities37,003 46,648 
Accrued income taxesAccrued income taxes1,671 Accrued income taxes245 1,671 
Accrued expenses and other current liabilitiesAccrued expenses and other current liabilities19,215 24,747 Accrued expenses and other current liabilities22,420 24,747 
Total current liabilitiesTotal current liabilities137,924 150,294 Total current liabilities143,084 150,294 
Long-term debtLong-term debt24,721 36,513 Long-term debt23,094 36,513 
Long-term operating lease liabilitiesLong-term operating lease liabilities13,454 15,459 Long-term operating lease liabilities12,495 15,459 
Other long-term liabilitiesOther long-term liabilities4,031 6,159 Other long-term liabilities4,030 6,159 
Total liabilitiesTotal liabilities180,130 208,425 Total liabilities182,703 208,425 
Commitments and contingencies (Note 15)00
Commitments and contingencies (Note 12)Commitments and contingencies (Note 12)00
STOCKHOLDERS’ EQUITYSTOCKHOLDERS’ EQUITYSTOCKHOLDERS’ EQUITY
Common stock, $0.0001 par value; 100,000,000 shares authorized, 10,251,696 issued and outstanding at June 30, 2021 and 7,926,137 at December 31, 2020
Common stock, $0.0001 par value; 100,000,000 shares authorized, 10,274,242 issued and outstanding as of September 30, 2021 and 7,926,137 at December 31, 2020Common stock, $0.0001 par value; 100,000,000 shares authorized, 10,274,242 issued and outstanding as of September 30, 2021 and 7,926,137 at December 31, 2020
Additional paid-in capitalAdditional paid-in capital83,589 57,612 Additional paid-in capital84,419 57,612 
Accumulated deficitAccumulated deficit(5,431)(3,881)Accumulated deficit(1,445)(3,881)
Total stockholders’ equityTotal stockholders’ equity78,159 53,732 Total stockholders’ equity82,975 53,732 
Total liabilities and stockholders’ equityTotal liabilities and stockholders’ equity$258,289 $262,157 Total liabilities and stockholders’ equity$265,678 $262,157 
The accompanying notes are an integral part of these condensed consolidated financial statements
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LIMBACH HOLDINGS, INC.
Condensed Consolidated Statements of Operations
(Unaudited)
Three Months Ended June 30,Six Months Ended June 30,Three Months Ended
September 30,
Nine Months Ended
September 30,
(in thousands, except share and per share data)
(in thousands, except share and per share data)
2021202020212020
(in thousands, except share and per share data)
2021202020212020
RevenueRevenue$121,019 $135,185 $234,363 $273,957 Revenue$129,177 $163,856 $363,540 $437,813 
Cost of revenueCost of revenue102,329 114,850 198,444 235,398 Cost of revenue104,714 139,685 303,158 375,083 
Gross profitGross profit18,690 20,335 35,919 38,559 Gross profit24,463 24,171 60,382 62,730 
Operating expenses:Operating expenses:Operating expenses:
Selling, general and administrativeSelling, general and administrative17,232 13,752 34,377 30,552 Selling, general and administrative18,302 17,045 52,679 47,596 
Amortization of intangiblesAmortization of intangibles104 274208 417Amortization of intangibles87 109295 526
Total operating expensesTotal operating expenses17,336 14,026 34,585 30,969 Total operating expenses18,389 17,154 52,974 48,122 
Operating incomeOperating income1,354 6,309 1,334 7,590 Operating income6,074 7,017 7,408 14,608 
Other income (expenses):
Other (expenses) income:Other (expenses) income:
Interest expense, netInterest expense, net(452)(2,137)(1,716)(4,295)Interest expense, net(424)(2,154)(2,140)(6,449)
Gain (loss) on disposition of property and equipment94 (13)17 
(Loss) gain on disposition of property and equipment(Loss) gain on disposition of property and equipment(49)(41)18 
Loss on early debt extinguishmentLoss on early debt extinguishment(1,961)Loss on early debt extinguishment— — (1,961)— 
Gain (loss) on change in fair value of warrant liability(102)14 59 
(Loss) gain on change in fair value of warrant liability(Loss) gain on change in fair value of warrant liability— (1,371)14 (1,312)
Total other expensesTotal other expenses(358)(2,252)(3,655)(4,219)Total other expenses(473)(3,522)(4,128)(7,743)
Income (loss) before income taxes996 4,057 (2,321)3,371 
Income tax provision (benefit)264 1,110 (771)476 
Net income (loss)$732 $2,947 $(1,550)$2,895 
Income before income taxesIncome before income taxes5,601 3,495 3,280 6,865 
Income tax provisionIncome tax provision1,615 970 844 1,445 
Net incomeNet income$3,986 $2,525 $2,436 $5,420 
Earnings Per Share (“EPS”)Earnings Per Share (“EPS”)Earnings Per Share (“EPS”)
Income (loss) per common share:
Income per common share:Income per common share:
Basic Basic$0.07 $0.38 $(0.16)$0.37  Basic$0.39 $0.32 $0.25 $0.69 
Diluted Diluted$0.07 $0.37 $(0.16)$0.37  Diluted$0.38 $0.31 $0.24 $0.68 
Weighted average number of shares outstanding:Weighted average number of shares outstanding:Weighted average number of shares outstanding:
BasicBasic10,251,696 7,845,515 9,737,801 7,821,594 Basic10,266,486 7,890,074 9,915,966 7,844,587 
DilutedDiluted10,469,028 7,905,368 9,737,801 7,878,246 Diluted10,491,863 8,107,149 10,145,470 7,969,857 
The accompanying notes are an integral part of these condensed consolidated financial statements
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LIMBACH HOLDINGS, INC.
Condensed Consolidated Statements of Stockholders’ Equity
(Unaudited)
Common Stock    Common Stock   
(in thousands, except share amounts)(in thousands, except share amounts)Number of
shares
outstanding
Par value
amount
Additional
paid-in
capital
Accumulated
deficit
Stockholders’
equity
(in thousands, except share amounts)Number of
shares
outstanding
Par value
amount
Additional
paid-in
capital
Accumulated
deficit
Stockholders’
equity
Balance at December 31, 2020Balance at December 31, 20207,926,137 $$57,612 $(3,881)$53,732 Balance at December 31, 20207,926,137 $$57,612 $(3,881)$53,732 
Stock-based compensationStock-based compensation— — 677 — 677 Stock-based compensation— — 677 — 677 
Shares issued related to vested restricted stock unitsShares issued related to vested restricted stock units89,446 — — — Shares issued related to vested restricted stock units89,446 — — — — 
Tax withholding related to vested restricted stock unitsTax withholding related to vested restricted stock units— — (183)— (183)Tax withholding related to vested restricted stock units— — (183)— (183)
Shares issued related to employee stock purchase planShares issued related to employee stock purchase plan8,928 — 92 — 92 Shares issued related to employee stock purchase plan8,928 — 92 — 92 
Shares issued related to the exercise of warrantsShares issued related to the exercise of warrants172,869 — 1,989 — 1,989 Shares issued related to the exercise of warrants172,869 — 1,989 — 1,989 
Shares issued related to sale of common stockShares issued related to sale of common stock2,051,025 — 22,773 — 22,773 Shares issued related to sale of common stock2,051,025 — 22,773 — 22,773 
Net lossNet loss— — — (2,282)(2,282)Net loss— — — (2,282)(2,282)
Balance at March 31, 2021Balance at March 31, 202110,248,405 82,960 (6,163)76,798 Balance at March 31, 202110,248,405 $$82,960 $(6,163)$76,798 
Stock-based compensationStock-based compensation— — 636 — 636 Stock-based compensation— — 636 — 636 
Shares issued related to vested restricted stock unitsShares issued related to vested restricted stock units3,291 — — — Shares issued related to vested restricted stock units3,291 — — — — 
Tax withholding related to vested restricted stock unitsTax withholding related to vested restricted stock units— — (7)— (7)Tax withholding related to vested restricted stock units— — (7)— (7)
Net incomeNet income— — — 732 732 Net income— — — 732 732 
Balance at June 30, 2021Balance at June 30, 202110,251,696 $$83,589 $(5,431)$78,159 Balance at June 30, 202110,251,696 $$83,589 $(5,431)$78,159 
Stock-based compensationStock-based compensation— — 703 — 703 
Shares issued related to vested restricted stock unitsShares issued related to vested restricted stock units6,401 — — — — 
Shares issued related to employee stock purchase planShares issued related to employee stock purchase plan16,140 — 127 127 
Shares issued related to the exercise of warrantsShares issued related to the exercise of warrants— — — 
Net incomeNet income— — — 3,986 3,986 
Balance at September 30, 2021Balance at September 30, 202110,274,242 $$84,419 $(1,445)$82,975 

 Common Stock   
(in thousands, except share amounts)Number of
shares
outstanding
Par value
amount
Additional
paid-in
capital
Accumulated
deficit
Stockholders’
equity
Balance at December 31, 20197,688,958 $$56,557 $(9,688)$46,870 
Stock-based compensation— — 295 — 295 
Shares issued related to vested restricted stock units104,905 — — — 
Net loss— — — (52)(52)
Balance at March 31, 20207,793,863 56,852 (9,740)47,113 
Stock-based compensation— — 140 — 140 
Shares issued related to vested restricted stock units59,514 — — — 
Net income— — — 2,947 2,947 
Balance at June 30, 20207,853,377 $$56,992 $(6,793)$50,200 

The accompanying notes are an integral part of these condensed consolidated financial statements
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LIMBACH HOLDINGS, INC.
Condensed Consolidated Statements of Cash Flows
(Unaudited)
 Common Stock   
(in thousands, except share amounts)Number of
shares
outstanding
Par value
amount
Additional
paid-in
capital
Accumulated
deficit
Stockholders’
equity
Balance at December 31, 20197,688,958 $$56,557 $(9,688)$46,870 
Stock-based compensation— — 295 — 295 
Shares issued related to vested restricted stock units104,905 — — — — 
Net loss— — — (52)(52)
Balance at March 31, 20207,793,863 $$56,852 $(9,740)$47,113 
Stock-based compensation— — 140 — 140 
Shares issued related to vested restricted stock units59,514 — — — — 
Net income— — — 2,947 2,947 
Balance at June 30, 20207,853,377 $$56,992 $(6,793)$50,200 
Stock-based compensation— — 304 — 304 
Shares issued related to employee stock purchase plan30,825 — 98 — 98 
Shares issued related to vested restricted stock units10,000 — — — — 
Net income— — — 2,525 2,525 
Balance at September 30, 20207,894,202 $$57,394 $(4,268)$53,127 

 Six months ended June 30,
(in thousands)
20212020
Cash flows from operating activities:  
Net (loss) income$(1,550)$2,895 
Adjustments to reconcile net (loss) income to cash (used in) provided by operating activities:
Depreciation and amortization2,964 3,140 
Provision for doubtful accounts70 27 
Stock-based compensation expense1,313 435 
Noncash operating lease expense2,091 2,025 
Amortization of debt issuance costs220 1,080 
Deferred income tax provision(306)798 
Gain on sale of property and equipment(8)(17)
Loss on early debt extinguishment1,961 
Gain on change in fair value of warrant liability(14)(59)
Changes in operating assets and liabilities:
   Accounts receivable(8,918)3,588 
   Contract assets(3,717)4,901 
   Other current assets(1,306)(166)
   Accounts payable, including retainage190 (19,519)
   Prepaid income taxes(891)(171)
   Accrued taxes payable(1,671)(11)
   Contract liabilities(7,469)16,254 
   Operating lease liabilities(2,004)(2,399)
   Accrued expenses and other current liabilities(5,450)9,419 
   Other long-term liabilities(114)237 
Net cash (used in) provided by operating activities(24,609)22,457 
Cash flows from investing activities:
Proceeds from sale of property and equipment361 64 
Advances to joint ventures(1)
Purchase of property and equipment(501)(660)
Net cash used in investing activities(140)(597)
Cash flows from financing activities:
Proceeds from Wintrust Term Loan30,000 
Payments on Wintrust Term Loan(2,000)— 
Proceeds from 2019 Revolving Credit Facility7,250 
Payments on 2019 Revolving Credit Facility(7,250)
Payments on 2019 Refinancing Term Loan(39,000)
Prepayment penalty and other costs associated with early debt extinguishment(1,376)
Proceeds from the sale of common stock22,773 
Proceeds from the exercise of warrants1,989 
Payments on finance leases(1,318)(1,285)
Payments of debt issuance costs(593)
Taxes paid related to net-share settlement of equity awards(401)(90)
   Proceeds from contributions to Employee Stock Purchase Plan221 
Net cash provided by (used in) financing activities10,295 (1,375)
(Decrease) increase in cash, cash equivalents and restricted cash(14,454)20,485 
Cash, cash equivalents and restricted cash, beginning of period42,260 8,457 
Cash, cash equivalents and restricted cash, end of period$27,806 $28,942 
Supplemental disclosures of cash flow information
Noncash investing and financing transactions:
   Right of use assets obtained in exchange for new operating lease liabilities$156 $
   Right of use assets obtained in exchange for new finance lease liabilities336 1,050 
   Right of use assets disposed or adjusted modifying operating lease liabilities36 586 
   Right of use assets disposed or adjusted modifying finance lease liabilities(64)
Interest paid1,741 3,250 
Cash paid for income taxes$2,096 $734 
The accompanying notes are an integral part of these condensed consolidated financial statements
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LIMBACH HOLDINGS, INC.
Condensed Consolidated Statements of Cash Flows (Unaudited)

 Nine months ended September 30,
(in thousands)
20212020
Cash flows from operating activities:  
Net income$2,436 $5,420 
Adjustments to reconcile net income to cash (used in) provided by operating activities:
Depreciation and amortization4,353 4,635 
Provision for doubtful accounts126 62 
Stock-based compensation expense2,016 739 
Noncash operating lease expense3,152 3,033 
Amortization of debt issuance costs251 1,620 
Deferred income tax provision391 211 
Loss (gain) on sale of property and equipment41 (18)
Loss on early debt extinguishment1,961 — 
(Gain) loss on change in fair value of warrant liability(14)1,312 
Changes in operating assets and liabilities:
   Accounts receivable(12,678)(19,834)
   Contract assets(5,095)8,612 
   Other current assets(1,243)270 
   Accounts payable, including retainage4,131 2,695 
   Prepaid income taxes(217)(192)
   Accrued taxes payable(1,426)1,947 
   Contract liabilities(9,645)18,715 
   Operating lease liabilities(3,036)(3,229)
   Accrued expenses and other current liabilities(2,173)8,925 
   Other long-term liabilities(112)306 
Net cash (used in) provided by operating activities(16,781)35,229 
Cash flows from investing activities:
Proceeds from sale of property and equipment421 65 
Advances to joint ventures(2)(3)
Purchase of property and equipment(687)(1,116)
Net cash used in investing activities(268)(1,054)
Cash flows from financing activities:
Proceeds from Wintrust Term Loan (as defined in Note 5)30,000 — 
Payments on Wintrust Term Loan(3,500)— 
Proceeds from 2019 Revolving Credit Facility (as defined in Note 5)— 7,250 
Payments on 2019 Revolving Credit Facility— (7,250)
Payments on 2019 Refinancing Term Loan (as defined in Note 5)(39,000)(1,000)
Prepayment penalty and other costs associated with early debt extinguishment(1,376)— 
Proceeds from the sale of common stock22,773 — 
Proceeds from the exercise of warrants1,989 — 
Payments on finance leases(1,966)(1,966)
Payments of debt issuance costs(593)— 
Taxes paid related to net-share settlement of equity awards(401)(102)
   Proceeds from contributions to Employee Stock Purchase Plan278 149 
Net cash provided by (used in) financing activities8,204 (2,919)
(Decrease) increase in cash, cash equivalents and restricted cash(8,845)31,256 
Cash, cash equivalents and restricted cash, beginning of period42,260 8,457 
Cash, cash equivalents and restricted cash, end of period$33,415 $39,713 
Supplemental disclosures of cash flow information
Noncash investing and financing transactions:
   Right of use assets obtained in exchange for new operating lease liabilities$156 $924 
   Right of use assets obtained in exchange for new finance lease liabilities846 2,399 
   Right of use assets disposed or adjusted modifying operating lease liabilities47 586 
   Right of use assets disposed or adjusted modifying finance lease liabilities— (64)
Interest paid2,138 4,817 
Cash paid (received) for income taxes$2,096 $(629)
The accompanying notes are an integral part of these condensed consolidated financial statements
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LIMBACH HOLDINGS, INC.
Notes to Condensed Consolidated Financial Statements (Unaudited)
Note 1 – OrganizationBusiness and Plan of Business OperationsOrganization
Limbach Holdings, Inc. (the “Company,” “we” or “us”), is a Delaware corporation headquartered in Pittsburgh, Pennsylvania, that was formed on July 20, 2016 as a result of a business combination with Limbach Holdings LLC (“LHLLC”). The Company’s condensed consolidated financial statements includeCompany is an integrated building systems solutions firm whose expertise is in the accountsdesign, modular prefabrication, installation, management and maintenance of Limbach Holdings, Inc.heating, ventilation, air-conditioning (“HVAC”), mechanical, electrical, plumbing and its wholly-owned subsidiaries,controls systems. The Company provides comprehensive facility services consisting of mechanical construction, full HVAC service and maintenance, energy audits and retrofits, engineering and design build services, constructability evaluation, equipment and materials selection, offsite/prefabrication construction, and the complete range of sustainable building solutions. The Company's customers operate in diverse industries including, LHLLC, Limbach Facility Services LLC, Limbachbut not limited to, healthcare, life sciences, data centers, industrial and light manufacturing, entertainment, education and government. The Company LLC, Limbachoperates primarily in the Northeast, Mid-Atlantic, Southeast, Midwest, and Southwestern regions of the United States.
The Company LP, Harper Limbach LLC, and Harper Limbach Construction LLC.
Asoperates in 2 segments, which were renamed as of January 1, 2021 the Company renamed its existing 2 reportable segments to reflect ourthe Company's 2 distinct approaches to ourits customer base and to better align with ourits owner direct strategy. The previously named Construction Segmentsegment is now known as General Contractor Relationships (“GCR”); the previously named Service Segmentsegment is now known as Owner Direct Relationships (“ODR”). The Company operates in 2Company's operating segments that are based on the relationship with its customer,customers, (i) GCR, in which the Company generally manages new construction or renovation projects that involve primarily heating, ventilation, and air conditioning (“HVAC”),HVAC, plumbing, or electrical services awarded to the Company by general contractors or construction managers, and (ii) ODR, in which the Company provides maintenance or service primarily on HVAC, plumbing or electrical systems, building controls and specialty contracting projects direct to, or assigned by, building owners or property managers. This work is primarily performed under fixed price, modified fixed price, and time and material contracts over periods of typically less than two years.
The Company's customers operate in diverse industries including, but not limited to, healthcare, life sciences, data centers, industrial and light manufacturing, entertainment, education and government. The Company operates primarily in the Northeast, Mid-Atlantic, Southeast, Midwest, and Southwestern regions of the United States.
Impact of the COVID-19 Pandemic
In March 2020, the World Health Organization declared the outbreak of COVID-19the coronavirus disease 2019 (“COVID-19”) a global pandemic. The COVID-19 pandemic has caused significant disruption and volatility on a global scale resulting in, among other things, an economic slowdown, impacts to global supply chains, and the possibility of a continued economic recession. In response to the COVID-19 outbreak, national and local governments around the world instituted certain measures, including travel bans, restrictions on group events and gatherings, shutdowns of certain non-essential businesses, curfews, shelter-in-place orders, and recommendations to practice social distancing. The variousdistancing and vaccine mandates. Certain governmental actions have abated over time, but remain applicable to Limbach's operations in various ways, often varying by state. In some instances, these orders continued to affect certain projects in our GCR and ODR segments into the first quarter ofduring 2021. In limited instances, during fiscal 2020, projects chose to shutdown work irrespective of the existence or applicability of government action. In most markets, construction is considered an essential business and Limbachthe Company continued to staff its projects and perform work during fiscal 2020 and into 2021, and most of the projects that were in progress at the time shutdowns commenced were restarted.
The Company’s branches are expecting building ownersCompany continues to maintain or retrofit current facilitiesactively manage its response to the COVID-19 pandemic in lieu of funding larger capital projects as the effects of the pandemic remain ongoingcollaboration with relevant parties and, uncertain.

During fiscal 2020 and through the second quarter of 2021, the Company continued to take several actions to combat the adverse impactsgiven that the situation surrounding COVID-19 outbreak had on our business including, but not limited to the following:

•    Identificationremains fluid, a number of projects that have been shut down and methods for seeking to preserve any contractual entitlement that may exist to recover monetary and time impacts;
•    Establishment of a task force to identify possible types and areas of impact from COVID-19 for both shutdown and     continuing operations;
•    Examination of the Company's productivity and potential impact on gross profit as a result of COVID-19;
•    Implementation of the Company's pandemic response plan;
•    Implemented our furlough and work schedule reduction plans, as well as permanent reductions in force; and
•    Temporarily suspended substantially all discretionary, non-essential expenditures, including but not limited to, auto allowances, deferral of rent ranging between 1 and 3 months; and
•    A temporary 10% salary reduction for a select group of corporate and regional management, along with a 10% fee reduction in director compensation, and cost reduction opportunities identified by our external consultant.

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During the month of July 2020, with the substantial restart and return of project and service work, the Company removed the 10% salary reduction for the select group of corporate and regional management, along with the fee reduction for director compensation, returned auto allowances, reinstated positions, removed schedule reduction plans and discontinued our hiring freeze. During the remainder of 2020 and into 2021, the Company reinstituted limited travel and in-person meetings, along with encouraging employees to return to the office, field and training settings in a partial, flexible manner that is consistent with our Work From Home Policy and our COVID-19 Policy. The Company has remained steadfastly committed to our COVID-19 Policy as our work environment evolvesCompany-wide measures undertaken in response to COVID-19 remain in effect to continue to promote the changing landscapesafety and health of the pandemicits employees and in response to the increasing availability of vaccinations.customers.

We continueThe Company continues to monitor the short and long term impacts of the pandemic. While our employees and customers have adapted to a new work environment and there continues to be scientific, societal and economic progress to address the effect of COVID-19, there remains significant uncertainty about the future impacts of the pandemic, including the potential effects on our operations. We remain cautiously optimistic about the markets in which we operate and the customers we serve; however, the continued spread of more contagious variants of the virus including the current rapid increase of the Delta Variant, may impact economic activity and could cause projects to be delayed or canceled, or we may experience access restrictions to our customers’ facilities and project sites. Additionally, the spread of the Delta Variant has the near-term possibility of causing some state and local governments where we work to reinstitute restrictions that could impact our customers, vendors and our own ability to perform existing projects.

The ongoing effects of the pandemic, including decreased consumer confidence and economic instability, can make it extremely difficult for our customers, our vendors and us to accurately forecast and plan future business activities, and could cause constrained spending on our services, delays and a lengthening of our business development efforts, the demand for more favorable pricing or other terms, and/or difficulty in collection of our accounts receivable. Our clients may face budget deficits or other financial constraints that prohibit them from funding proposed and existing projects. During the fourth quarter of 2020 and the first half ofnine months ended September 30, 2021, several of our business units experienced slowdowns in the closing of sales related to the ongoing effects of the pandemic, which impacted our revenue and profitability. These impacts may continue as the pandemic persists. Further, ongoing economic instability in the global markets, including from the pandemic, could limit our ability to access the capital markets at a time when we would like, or need, to raise capital, which could have an impact on
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our ability to react to changing business conditions or new opportunities. If economic conditions remain uncertain or weaken, or spending continues to be reduced, our financial condition and results of operations may be adversely affected.

The Company continues to take steps to minimize the adverse impacts of the COVID-19 pandemic on its business and to protect the safety of its employees, and the Company continues to emphasize wearing of masks, more frequent washing of hands and tools, social distancing, and work protocols. Limbach's COVID-19 Policy is based on the best practices provided by the Centers for Disease Control and Prevention (“CDC”) and Occupational Safety and Health Administration for essential workers. Our updated Work From Home Policy, along with the Company's business continuity planning and information technology enhancements enabled an orderly transition to remote work and facilitated social distancing for salaried employees. Although the Company has not mandated vaccinations for employees, it is encouraging all employees to be vaccinated, in accordance with CDC recommendations.

Testing and inpatient treatment for COVID-19 is covered under our medical plan and fees have been waived since the onset of the pandemic. Counseling is available through our employee assistance plan to assist employees with financial, mental and emotional stress related to the virus and other issues.
Note 2 – Significant Accounting Policies
Basis of Presentation
Condensed Consolidated Financial StatementsReferences in these financial statements to the Company refer collectively to the accounts of Limbach Holdings, Inc. and its wholly-owned subsidiaries, including LHLLC, Limbach Facility Services LLC (“LFS”), Limbach Company LLC, Limbach Company LP, Harper Limbach LLC, and Harper Limbach Construction LLC for all periods presented.
The accompanying unaudited Condensed Consolidated Financial Statements condensed consolidated financial statements have been prepared in accordance with instructions togenerally accepted accounting principles in the Quarterly Report onUnited States (“GAAP”) for interim financial information and with the requirements of Form 10-Q and Rule 8-03 of Regulation S-X for smaller reporting companies. Consequently, certain information and note disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”)GAAP have been condensed or omitted pursuant to those rules and regulations, although the Company believes that the disclosures made are adequate to make the information not misleading. Readers of this report should refer to the consolidated financial statements and the notes thereto included in ourthe Company's most recent Annual Report on Form 10-K filed with the Securities and Exchange Commission (the “SEC”(“SEC”) on March 25, 2021.
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Unaudited Interim Financial Information
The accompanying interim Condensed Consolidated Balance Sheets, Condensed Consolidated Statements of Operations, Condensed Consolidated Statements of Stockholders’ Equity and Condensed Consolidated Statements of Cash Flows for the periods presented are unaudited. Also, within the notes to the Condensed Consolidated Financial Statements, we havecondensed consolidated financial statements, the Company has included unaudited information for these interim periods. These unaudited interim Condensed Consolidated Financial Statementscondensed consolidated financial statements have been prepared in accordance with GAAP. In ourthe Company's opinion, the accompanying unaudited Condensed Consolidated Financial Statementscondensed consolidated financial statements contain all normal and recurring adjustments necessary for a fair statement of the Company’s financial position as of JuneSeptember 30, 2021, its results of operations and its cash flows for the three and sixnine months ended JuneSeptember 30, 2021. The results for the three and sixnine months ended JuneSeptember 30, 2021 are not necessarily indicative of the results to be expected for the year ending December 31, 2021.
The Condensed Consolidated Balance Sheet as of December 31, 2020 was derived from ourthe Company's audited financial statements included in ourits Annual Report on Form 10-K filed with the SEC on March 25, 2021, but is presented as condensed and does not contain all of the footnote disclosures from the annual financial statements.
Note 3 – Accounting Standards
Recently Adopted Accounting Standards
In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740), which affects general principles within Topic 740, and is meant to simplify and reduce the cost of accounting for income taxes. It removes certain exceptions to the general principles in Topic 740 and simplifies areas including franchise taxes that are partially based on income, transactions with a government that result in a step up in the tax basis of goodwill, the incremental approach for intraperiod tax allocation, interim period income tax accounting for year-to-date losses that exceed anticipated losses and enacted changes in tax laws in interim periods. The changes are effective for annual periods beginning after December 15, 2020. The adoption of this pronouncement did not have a material impact on ourthe Company's condensed consolidated financial statements or presentation thereof.
Also in October 2020, the FASB issued ASU 2020-10, Codification Improvements.Improvements. The amendments in this update remove references to various FASB Concepts Statements, situates all disclosure guidance in the appropriate disclosure section of the Codification, and makes other improvements and technical corrections to the Codification. The amendments in Sections B and C of this amendment are effective for annual periods beginning after December 15, 2020, for public business entities, with early adoption permitted. The adoption of this pronouncement did not have a material impact on ourthe Company's condensed consolidated financial statements or presentation thereof.
Recent Accounting Pronouncements
In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments, which introduced an expected credit loss methodology for the measurement and recognition of credit losses on most financial instruments, including trade receivables and off-balance sheet credit exposure. Under this guidance, an entity is required to consider a broader range of information to estimate expected credit losses, which may result in earlier recognition of losses. This ASU also requires disclosure of information regarding how a company developed its allowance, including changes in the factors that influenced management’s estimate of expected credit losses and the reasons for those changes. The guidance is effective for smaller reporting companies on January 1, 2023 with early adoption permitted. The
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adoption of this standard will be through a cumulative-effect adjustment to retained earnings as of the effective date. Based on ourits historical experience, the Company does not expect that this pronouncement will have a significant impact in its financial statements or on the estimate of the allowance for doubtful accounts.
The FASB has issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting in March 2020. This new guidance provides optional expedients for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform, on financial reporting. The risk of termination of the London Interbank Offered Rate (LIBOR), has caused regulators to undertake reference rate reform initiatives to identify alternative reference rates that are more observable or transaction based that are less susceptible to manipulation. ASU 2020-04 is effective between March 12, 2020 and December 31, 2022.
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In addition, in January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848): Scope. The amendments in this update refine the scope for certain optional expedients and exceptions for contract modifications and hedge accounting to apply to derivative contracts and certain hedging relationships affected by the discounting transition. The amendments in this update are effective for all entities as of March 12, 2020 through December 31, 2022. The Company is currently evaluating the impact of adopting the reference rate reform guidance (both ASU 2020-04 and ASU 2021-01) on its condensed consolidated financial statements. Management has identified that its credit agreement utilizes LIBOR as a benchmark rate. Management will continue to evaluate the impact of adopting reference rate reform as the LIBOR benchmark rate within the credit agreement is phased out.
In August 2020, the FASB issued ASU 2020-06, Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity's Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity's Own Equity, which simplifies the accounting for certain financial instruments with characteristics of liabilities and equity and amends the scope guidance for contracts in an entity's own equity. The ASU addresses how convertible instruments are accounted for in the calculation of diluted earnings per share by using the if-converted method. The guidance is effective for all entities for fiscal years beginning after March 31, 2024, albeit early adoption is permitted no earlier than fiscal years beginning after December 15, 2020. Management is currently assessing the impact of this pronouncement on its condensed consolidated financial statements.
Note 43Accounts ReceivableRevenue from Contracts with Customers
The Company generates revenue principally from fixed-price construction contracts to deliver HVAC, plumbing, and Allowance for Doubtful Accountselectrical construction services to its customers. The duration of its contracts generally ranges from six months to two years. Revenue from fixed price contracts is recognized on the cost-to-cost method, measured by the relationship of total cost incurred to total estimated contract costs. Revenue from time and materials contracts is recognized as services are performed. The Company believes that its extensive experience in HVAC, plumbing, and electrical projects, and its internal cost review procedures during the bidding process, enable it to reasonably estimate costs and mitigate the risk of cost overruns on fixed price contracts.
Accounts receivableThe Company generally invoices customers on a monthly basis, based on a schedule of values that breaks down the contract amount into discrete billing items. Costs and estimated earnings in excess of billings on uncompleted contracts are recorded as a contract asset until billable under the allowance for doubtful accountscontract terms. Billings in excess of costs and estimated earnings on uncompleted contracts are comprised ofrecorded as a contract liability until the following:
(in thousands)June 30, 2021December 31, 2020
Accounts receivable - trade$94,881 $86,033 
Allowance for doubtful accounts(266)(266)
   Accounts receivable, net$94,615 $85,767 
Note 5 – Contract Assets and Liabilities
related revenue is recognizable. The Company classifies contract assets and liabilities that may be settled beyond one year from the balance sheet date as current, consistent with the length of time of the Company’s project operating cycle.
Contract assets
Contract assets include costs in excess of billings and estimated earnings and amounts due under retainage provisions. The components of the contract asset balances as of the respective dates were as follows:
(in thousands)(in thousands)June 30, 2021December 31, 2020Change(in thousands)September 30, 2021December 31, 2020Change
Contract assetsContract assetsContract assets
Costs in excess of billings and estimated earnings Costs in excess of billings and estimated earnings$38,200 $31,894 $6,306  Costs in excess of billings and estimated earnings$39,772 $31,894 $7,878 
Retainage receivable Retainage receivable32,615 35,204 (2,589) Retainage receivable32,421 35,204 (2,783)
Total contract assets Total contract assets$70,815 $67,098 $3,717  Total contract assets$72,193 $67,098 $5,095 
Retainage receivable represents amounts invoiced to customers where payments have been partially withheld, typically 10%, pending the completion of certain milestones, satisfaction of other contractual conditions or the completion of the project. Retainage agreements vary from project to project and balances could be outstanding for several months or years depending on
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a number of circumstances such as contract-specific terms, project performance and other variables that may arise as the Company makes progress towards completion.

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Contract assets represent the excess of contract costs and profits (or contract revenue) over the amount of contract billings to date and are classified as a current asset. Contract assets result when either: 1) the appropriate contract revenue amount has been recognized over time in accordance with ASC Topic 606, but a portion of the revenue recorded cannot be currently billed due to the billing terms defined in the contract, or 2) costs are incurred related to certain claims and unapproved change orders. Claims occur when there is a dispute regarding both a change in the scope of work and the price associated with that change. Unapproved change orders occur when a change in the scope of work results in additional work being performed before the parties have agreed on the corresponding change in the contract price. The Company routinely estimates recovery related to claims and unapproved change orders as a form of variable consideration at the most likely amount it expects to receive and to the extent it is probable that a significant reversal of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is resolved. Claims and unapproved change orders are billable upon the agreement and resolution between the contractual parties and after the execution of contractual amendments. Increases in claims and unapproved change orders typically result from costs being incurred against existing or new positions; decreases normally result from resolutions and subsequent billings.

The current estimated net realizable value on such claims and unapproved change orders as recorded in contract assets and contract liabilities in the condensed consolidated balance sheets was $40.1$39.2 million and $33.6 million as of JuneSeptember 30, 2021 and December 31, 2020, respectively. The Company anticipates that the majority of such amounts will be approved or executed within one year. The resolution of thesethose claims and unapproved change orders that may require litigation or other forms of dispute resolution proceedings.proceedings may delay the timing of billing beyond one year.

Contract liabilities
Contract liabilities include billings in excess of costs and estimated earnings and provisions for losses. The components of the contract liability balances as of the respective dates were as follows:
(in thousands)June 30, 2021December 31, 2020Change
Contract liabilities
   Billings in excess of costs and estimated earnings$38,611 $46,020 $(7,409)
   Provisions for losses568 628 (60)
      Total contract liabilities$39,179 $46,648 $(7,469)

(in thousands)September 30, 2021December 31, 2020Change
Contract liabilities
   Billings in excess of costs and estimated earnings$36,517 $46,020 $(9,503)
   Provisions for losses486 628 (142)
      Total contract liabilities$37,003 $46,648 $(9,645)
Billings in excess of costs and estimated earnings represent the excess of contract billings to date over the amount of contract costs and profits (or contract revenue) recognized to date. The balance may fluctuate depending on the timing of contract billings and the recognition of contract revenue.

Provisions for losses are recognized in the condensed consolidated statements of operations at the uncompleted performance obligation level for the amount of total estimated losses in the period that evidence indicates that the estimated total cost of a performance obligation exceeds its estimated total revenue.
The net overbilling position for contracts in process consist of the following:
(in thousands)(in thousands)June 30, 2021December 31, 2020(in thousands)September 30, 2021December 31, 2020
Revenue earned on uncompleted contractsRevenue earned on uncompleted contracts$691,473 $752,564 Revenue earned on uncompleted contracts$718,366 $752,564 
Less: Billings to dateLess: Billings to date(691,884)(766,690)Less: Billings to date(715,111)(766,690)
Net overbilling$(411)$(14,126)
Net underbilling (overbilling) Net underbilling (overbilling)$3,255 $(14,126)
(in thousands)(in thousands)June 30, 2021December 31, 2020(in thousands)September 30, 2021December 31, 2020
Costs in excess of billings and estimated earningsCosts in excess of billings and estimated earnings$38,200 $31,894 Costs in excess of billings and estimated earnings$39,772 $31,894 
Billings in excess of costs and estimated earningsBillings in excess of costs and estimated earnings(38,611)(46,020)Billings in excess of costs and estimated earnings(36,517)(46,020)
Net overbilling$(411)$(14,126)
Net underbilling (overbilling) Net underbilling (overbilling)$3,255 $(14,126)

Revisions in Contract Estimates
For the three and sixnine months ended JuneSeptember 30, 2021 and 2020, wethe Company recorded revisions in ourits contract estimates for certain GCR and ODR projects.

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For the three months ended JuneSeptember 30, 2021, and 2020,total net gross profit write-ups were $1.2 million compared total net gross profit write-downs were $1.1of $0.8 million and $2.0 million, respectively.for the three months ended September 30, 2020. For projects having a material gross profit impact of $0.25 million or more for the three months ended JuneSeptember 30, 2021, this resulted in material gross profit write downswrite-downs on 3 GCR segment projects of $1.7 million and 1 ODR project for $0.3$1.4 million. Of the material GCR segment write downs, 1 project was within the Michigan region for a total of $1.0 million,write-downs, 1 project was within the New England region for $0.3$0.6 million, and 1 project was2 projects were within the Southern California region for $0.4a total of $0.8 million. The Company also recorded material gross profit write-ups on 3 GCR segment projects of $1.2 million. Of the material ODRGCR segment write downs,write-ups, 1 project was within the Eastern PennsylvaniaNew England region for $0.3 million. We also recorded material gross profit write ups of $0.3$0.6 million on 1 GCR segment project inand 2 were within the Florida region and $0.3 million on 1 ODR segment project in the Michigan region.for a total of $0.6 million. For the three months ended JuneSeptember 30, 2020, wethe Company recorded material revisions in ourits contract estimates on 45 GCR projects which resulted in gross profit write downswrite-downs of $1.5$2.4 million. NaN of these projects were within the Southern California region for a total of $0.7$1.8 million. NaNThe Company also recorded a $0.4 million material project revisionsrevision resulting in materiala gross profit write ups were recorded duringwrite-up on 1 GCR project within the Southern California region for the three months ended JuneSeptember 30, 2020.

For the sixnine months ended JuneSeptember 30, 2021 and 2020, total net gross profit write-downs were $1.7$1.3 million and $3.4$4.2 million, respectively. For projects having a material gross profit impact of $0.25 million or more, wethe Company recorded gross profit write downswrite-downs on 89 GCR segment projects of $3.5$5.3 million and 1 ODR project for $0.3 million. Of the material GCR segment write downs,write-downs, 3 projects were within the Southern California region for a total of $1.8 million, 2 projects were within the Michigan region for a total of $1.2$1.3 million, 2 projects were within the Eastern Pennsylvania region for $1.0 million, 2 projects were within the Southern California region for $0.8a total of $1.2 million, 1 project was within the New England region for $0.3$0.7 million, and 1 project was within the Mid-Atlantic region for $0.3 million. WeThe Company also materially wrote downwrote-down 1 ODR segment project within the Eastern Pennsylvania region for $0.3 million. WeThe Company also recorded material GCR segment gross profit write upswrite-ups of $2.9 million on 7 GCR segment projects. Of the material GCR segment write-ups, 2 projects were within the Florida region for a total of $0.9 million, on 1 GCR segment project inwas within the Michigan region for $0.5$0.7 million, and 1 project2 projects were within the Ohio region for a total of $0.6 million, 1 project was within the New England region for $0.4 million and 1 project was within the Mid-Atlantic region for $0.3 million. For the sixnine months ended JuneSeptember 30, 2020, wethe Company recorded 11 material gross profit write downswrite-downs and 3 gross profit write-ups on 8material GCR projects, and 2 gross profit write ups on GCR projects, for anresulting in aggregate revisionrevisions of $5.2$7.5 million and $1.2$1.6 million, respectively.
Remaining Performance Obligations
Remaining performance obligations represent the transaction price of firm orders for which work has not been performed and exclude unexercised contract options. The Company’s remaining performance obligations includes projects that have a written award, a letter of intent, a notice to proceed or an agreed upon work order to perform work on mutually accepted terms and conditions.
As of September 30, 2021, the aggregate amount of the transaction prices allocated to the remaining performance obligations of the Company's GCR and ODR segment contracts were $345.5 million and $52.8 million, respectively. The Company estimates that 25% and 37% of its GCR and ODR remaining performance obligations as of September 30, 2021, respectively, will be recognized as revenue during the remainder of 2021. The substantial majority of remaining performance obligations to be recognized within 24 months, although the timing of the Company's performance is not always under its control.
Additionally, the difference between remaining performance obligations and backlog is due to the exclusion of a portion of the Company’s ODR agreements under certain contract types from the Company’s remaining performance obligations as these contracts can be canceled for convenience at any time by the Company or the customer without considerable cost incurred by the customer.
Note 64 – Goodwill and Intangibles
Goodwill
Goodwill was $6.1 million at both Juneas of September 30, 2021 and December 31, 2020. The goodwill2020 and is entirely associated with the Company's ODR segment. IntangibleThe Company tests its goodwill and indefinite-lived intangible assets allocated to its reporting units for impairment annually on October 1, or more frequently if events or circumstances indicate that it is more likely than not that the fair value of its reporting units and indefinite-lived intangible asset are comprisedless than their carrying amount.
During the third quarter of 2021, the Company identified impairment indicators in the form of significant declines in the stock price of the following:
(in thousands)Gross
carrying
amount
Accumulated
amortization
Net intangible
assets, excluding
goodwill
June 30, 2021(1)
Amortized intangible assets:
Customer Relationships – ODR$4,710 $(3,312)$1,398 
Favorable Leasehold Interests(2)
190 (75)115 
Total amortized intangible assets4,900 (3,387)1,513 
Unamortized intangible assets:
Trade Name9,960 — 9,960 
Total unamortized intangible assets9,960 — 9,960 
Total amortized and unamortized assets, excluding goodwill$14,860 $(3,387)$11,473 
Company's common shares and corresponding market capitalization. Management considered these declines as indicators that the fair value of the ODR reporting unit may have been below its carrying amount, and the performance of an interim quantitative goodwill impairment assessment was required. In estimating the fair value of the ODR reporting unit, the Company used a combination of the income approach and the market approach. The Company used the income approach’s discounted cash flow method, which applies significant inputs not observable in the public market (Level 3), including
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(in thousands)Gross
carrying
amount
Accumulated
amortization
Net intangible
assets, excluding
goodwill
December 31, 2020(1)
   
Amortized intangible assets:   
Customer Relationships – ODR$4,710 $(3,112)$1,598 
Favorable Leasehold Interests530 (407)123 
    Total amortized intangible assets5,240 (3,519)1,721 
Unamortized intangible assets:
   Trade Name9,960 — 9,960 
   Total unamortized intangible assets9,960 — 9,960 
          Total amortized and unamortized assets, excluding goodwill$15,200 $(3,519)$11,681 
estimates and assumptions related to the use of an appropriate discount rate, future cash flows generated from existing work and new awards, projected operating margins and changes in working capital. The Company used the market approach’s comparable company method. The comparable company method evaluates the value of a company using metrics of other businesses of similar size and industry.
As a result of the interim assessment, the Company determined that the fair value of the ODR reporting unit was greater than its respective carrying value. The impairment assessment concluded significant headroom of $33.3 million, or 169%, for the ODR reporting unit. No impairment to goodwill was recorded during the three months ended September 30, 2021. The Company believes the estimates and assumptions used in estimating its reporting units’ fair values are reasonable and appropriate; however, different assumptions and estimates could materially affect the calculated fair value of the ODR reporting unit and the resulting conclusions on impairment of goodwill, which could materially affect the Company’s results of operations and financial position. Additionally, actual results could differ from these estimates and assumptions may not be realized.
Intangible Assets
Intangible assets are comprised of the following:
(in thousands)Gross
carrying
amount
Accumulated
amortization
Net intangible
assets, excluding
goodwill
September 30, 2021(1)
Amortized intangible assets:
Customer relationships – ODR$4,710 $(3,396)$1,314 
Favorable leasehold interests(2)
190 (78)112 
Total amortized intangible assets4,900 (3,474)1,426 
Unamortized intangible assets:
Trade name9,960 — 9,960 
Total unamortized intangible assets9,960 — 9,960 
Total amortized and unamortized assets, excluding goodwill$14,860 $(3,474)$11,386 
(in thousands)Gross
carrying
amount
Accumulated
amortization
Net intangible
assets, excluding
goodwill
December 31, 2020(1)
   
Amortized intangible assets:   
Customer relationships – ODR$4,710 $(3,112)$1,598 
Favorable leasehold interests530 (407)123 
Total amortized intangible assets5,240 (3,519)1,721 
Unamortized intangible assets:
   Trade name9,960 — 9,960 
Total unamortized intangible assets9,960 — 9,960 
Total amortized and unamortized assets, excluding goodwill$15,200 $(3,519)$11,681 
(1)     The Backlog-Construction intangible asset previously shown at December 31, 2020 has been fully amortized. Accordingly, its gross carrying amount of $4.8 million and corresponding accumulated amortization of $4.8 million have been removed from the table.
(2)     TheDuring the first quarter of 2021, the Company reduced the gross carrying amount and accumulated amortization associated with our Favorableits favorable leasehold interests intangible asset was reduced by $0.3 million due to the lease termination of ourits Western Pennsylvania office associated with the intangible asset.

The definite-livedCustomer relationship-related intangible assets are amortized over the period the Company expects to receive the related economic benefit which for customer relationships is based upon estimated future net cash inflows. flows. Favorable leasehold interest-related intangible assets are amortized on a straight-line basis over the remaining lease terms. Total amortization expense for the Company's definite-lived intangible assets was $0.1 million and $0.3 million for the three and nine months ended September 30, 2021, respectively, and $0.1 million and $0.5 million for the three and nine months ended September 30, 2020, respectively.
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The Company has previously determined that its trade name has an indefinite useful life. The Limbach trade name has been in existence since the Company’s founding in 1901 and therefore is an established brand within the industry.
Total amortization expense for these amortizableDuring the third quarter of 2021, the Company performed a quantitative impairment test on its indefinite-lived intangible assets due to the triggering events described in the goodwill impairment summary above. The fair value of the Company's trade name was $0.1estimated using an income approach, specifically known as the relief-from-royalty method. The relief-from-royalty method is based on the hypothetical royalty stream that would be received if we were to license the trade name and was based on expected revenues. As a result of the interim assessment, the Company determined that the fair value of the Company's indefinite-lived intangible asset was greater than its respective carrying value. The impairment assessment concluded headroom of $1.0 million, and $0.2 millionor 10%, for the Company's trade name. The Company did not recognize an impairment charge on its indefinite-lived intangible asset for the three and sixnine months ended JuneSeptember 30, 2021 respectively, and $0.3 million and $0.4 million for the three and six months ended June 30, 2020, respectively.
The Company did 0t recognize any impairment charges on its goodwill or intangible assets for the three and six months ended June 30, 2021 or 2020.
Note 75 – Debt
Long-term debt consists of the following obligations as of:
(in thousands)(in thousands)June 30, 2021December 31, 2020(in thousands)September 30, 2021December 31, 2020
2019 Refinancing Term Loan - term loan payable in quarterly installments of principal, (commencing in September 2020) plus interest through April 20222019 Refinancing Term Loan - term loan payable in quarterly installments of principal, (commencing in September 2020) plus interest through April 2022$$39,000 2019 Refinancing Term Loan - term loan payable in quarterly installments of principal, (commencing in September 2020) plus interest through April 2022$— $39,000 
2019 Refinancing Revolving Credit Facility
2019 Revolving Credit Facility2019 Revolving Credit Facility— — 
Wintrust Term Loan - term loan payable in quarterly installments of principal, (commencing in March 2021) plus interest through February 2026Wintrust Term Loan - term loan payable in quarterly installments of principal, (commencing in March 2021) plus interest through February 202628,000 Wintrust Term Loan - term loan payable in quarterly installments of principal, (commencing in March 2021) plus interest through February 202626,500 — 
Wintrust Revolving LoanWintrust Revolving LoanWintrust Revolving Loan— — 
Finance leases – collateralized by vehicles, payable in monthly installments of principal, plus interest ranging from 4.70% to 6.45% through 2025Finance leases – collateralized by vehicles, payable in monthly installments of principal, plus interest ranging from 4.70% to 6.45% through 20255,476 6,459 Finance leases – collateralized by vehicles, payable in monthly installments of principal, plus interest ranging from 4.70% to 6.45% through 20255,338 6,459 
Total debtTotal debt33,476 45,459 Total debt31,838 45,459 
Less - Current portion of long-term debtLess - Current portion of long-term debt(8,454)(6,536)Less - Current portion of long-term debt(8,460)(6,536)
Less - Unamortized discount and debt issuance costsLess - Unamortized discount and debt issuance costs(301)(2,410)Less - Unamortized discount and debt issuance costs(284)(2,410)
Long-term debtLong-term debt$24,721 $36,513 Long-term debt$23,094 $36,513 
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TheOn February 24, 2021 (the “2021 Refinancing Date”), the Company refinanced its 2019 Refinancing Term Loan (defined below) and 2019 Revolving Credit Facility (defined below) with proceeds from the issuance of the Wintrust Term Loan (defined below) (the “2021 Refinancing”). As a result of the 2021 Refinancing, the Company prepaid all principal, interest, fees and other obligations outstanding under the 2019 Refinancing Agreements (defined below) and terminated its 2019 Refinancing Term Loan and 2019 Refinancing Revolving Credit FacilityFacility. In addition, on February 24,the 2021 described below and therefore had 0 amounts outstanding under these agreements at June 30, 2021. Accordingly,Refinancing Date, the Company recognized a loss on the early debt extinguishment related to the refinancingof debt of $2.0 million, on the refinancing date. This losswhich consisted of the write-off of $2.6 million of debt issuanceunamortized discount and debt discountfinancing costs, the reversal of the $2.0 million CB warrants (defined below) liability due to the warrants being cancelled on the refinancing date and the prepayment penalty and other extinguishment costs of $1.4 million.
2019 Refinancing Agreement
- 2019 Term Loans
On April 12, 2019 (the “Refinancing Closing Date”), Limbach Facility Services LLC (“LFS”)LFS entered into a financing agreement (the(as amended, the “2019 Refinancing Agreement”) with the lenders thereto and Cortland Capital Market Services LLC, as collateral agent and administrative agent and CB Agent Services LLC, as origination agent (“CB”). The 2019 Refinancing Agreement consisted of (i) a $40.0 million term loan (the “2019 Refinancing Term Loan”) and (ii) a new $25.0 million multi-draw delayed draw term loan (the “2019 Delayed Draw Term Loan” and, collectively with the 2019 Refinancing Term Loan, the “2019 Term Loans”). Proceeds fromOn November 14, 2019, the 2019 Refinancing Term Loan were usedCompany entered into an amendment to repay the then existing Credit Agreement, to pay related fees and expenses thereof and to fund working capital of the 2019 Refinancing Borrowers (defined below). Management intended for proceeds of the 2019 Delayed Draw Term Loan to be used to fund permitted acquisitions under the 2019 Refinancing Agreement which, among other things, amended the interest rate and related fees and expensescertain covenants in connection therewith.
LFS and each of its subsidiaries were borrowers (the “2019 Refinancing Borrowers”) under the 2019 Refinancing Agreement. In addition,
Prior to its refinancing in February 2021, the 2019 Refinancing Agreement was guaranteed by the Company and LHLLC (each, a “2019 Refinancing Guarantor”, and together with the 2019 Refinancing Borrowers, the “Loan Parties”).
The 2019 Refinancing Agreement was secured by a first-priority lien on the real property of the Loan Parties and a second-priority lien on substantially all other assets of the Loan Parties, behind the 2019 ABL Credit Agreement (as defined below). The respective lien priorities of the 2019 Refinancing Agreement and the 2019 ABL Credit Agreement were governed by an intercreditor agreement.
2019 Refinancing Agreement - Interest Rates and Fees
The interest rate on borrowings under the 2019 Refinancing Agreement was, at the 2019 Refinancing Borrowers’ option, either LIBOR (with a 2.00% floor) plus 11.00% or a base rate (with a 3.00% minimum) plus 10.00%. At February 24, 2021 (the 2021 refinancing date) and June 30, 2020, the interest ratewould have matured in effect on the 2019 Refinancing Term Loan was 13.00%.
2019 Refinancing Agreement - Other Terms and Conditions
The 2019 Refinancing Agreement was set to mature on April 12, 2022, subject to certain adjustment.2022. Required amortization was $1.0 million per quarter and commenced with the fiscal quarter ending September 30, 2020. There was an unused line fee of 2.0% per annum on the undrawn portion of the 2019 Delayed Draw Term Loan, and there was a make-whole premium on prepayments made prior to the 19-month anniversary of the Refinancing Closing Date. This make-whole provision guaranteed that the Company would pay no less than 18 months’ applicable interest to the lenders under the 2019 Refinancing Agreement.

The 2019 Refinancing Agreement contained representations and warranties, and covenants which were customary for debt facilities of this type. Unless the Required Lenders (as defined in the 2019 Refinancing Agreement) otherwise consented in writing, the covenants limited the ability of the Company and its restricted subsidiaries to, among other things, (i) incur additional indebtedness or issue preferred stock, (ii) pay dividends or make distributions to the Company’s stockholders, (iii) purchase or redeem the Company’s equity interests, (iv) make investments, (v) create liens on their assets, (vi) enter into transactions with the Company’s affiliates, (vii) sell assets and (viii) merge or consolidate with, or dispose of substantially all of the Company’s assets to, other companies.
In addition, the 2019 Refinancing Agreement included customary events of default and other provisions that could require all amounts due thereunder to become immediately due and payable, either automatically or at the option of the lenders, if the Company failed to comply with the terms of the 2019 Refinancing Agreement or if other customary events occur.
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Furthermore, the 2019 Refinancing Agreement also contained 2 financial maintenance covenants for the 2019 Refinancing Term Loan, including a requirement to have sufficient collateral coverage of the aggregate outstanding principal amount of the 2019 Term Loans and as of the last day of each month for the total leverage ratio of the Company and its subsidiaries (the “Total Leverage Ratio”) not to exceed an amount beginning at 4.25 to 1.00 through June 30, 2019, and stepping down to 2.00 to 1.00 effective July 1, 2021. From July 1, 2019 through September 30, 2019, the Total Leverage Ratio may not exceed 4.00 to 1.00. In addition, the parties to the 2019 Refinancing Agreement entered into an amendment which, among other changes, revised the maximum permitted Total Leverage Ratio, starting at 3.30 to 1.00 on October 1, 2019 with a peak ratio of 4.25 during March 2020 along with varying monthly rates culminating in the lowest Total Leverage Ratio of 2.00 to 1.00 on April 1, 2021 through the term of such agreement. The 2019 Refinancing Agreement contained a post-closing covenant requiring the remediation of the Company’s material weakness, as described in Item 9A of its 2018 Annual Report on Form 10-K, no later than December 31, 2020 and provision for updates as to the progress of such remediation, provided that, if such remediation was not completed on or prior to December 31, 2019, (x) the Company would be required to pay the post-closing fee pursuant to the terms of the Origination Agent Fee Letter (as defined in the 2019 Refinancing Agreement) and (y) the applicable margin shall be increased by 1.00% per annum for the period from January 1, 2020 until the date at which the material weakness was no longer disclosed or required to be disclosed in the Company’s SEC filings or audited financial statements of the Company or related auditor’s reports.

In connection with the 2019 Refinancing Amendment Number One and Waiver, dated November 14, 2019, the parties amended certain provisions of the 2019 Refinancing Agreement, including, among other changes to: (i) require, commencing October 1, 2019, a 3.00% increase in the interest rate on borrowings under the 2019 Refinancing Agreement; (ii) requireAgreement was, at the approvaloption of CBLFS and generally,its subsidiaries, either LIBOR (with a 2.00% floor) plus 11.00% or a base rate (with a 3.00% minimum) plus 10.00%. At the lenders representing at least 50.1% of2021 Refinancing Date and September 30, 2020, the aggregate undrawn term loan commitment or unpaid principal amount of the 2019 Term Loans, prior to effecting any permitted acquisition; (iii) revise the maximum permitted Total Leverage Ratio, starting at 3.30 to 1.00interest rate in effect on October 1, 2019 with a peak ratio of 4.25 during March 2020 along with varying monthly rates culminating in the lowest Total Leverage Ratio of 2.00 to 1.00 on April 1, 2021 and thereafter through the term of the 2019 Refinancing Agreement; and (iv) require the liquidity of the loan parties, which is generally calculated by adding (a) unrestricted cash on hand of the Loan Parties maintained in deposit accounts subject to control agreements granting control to the collateral agent for the 2019 ABL Credit Agreement, to (b) the difference between (1) the lesser of (x) $15 million, as adjusted from time to time, and (y) 75% of certain customer accounts resulting from the sale of goods or services in the ordinary course of business minus certain reserves established by the administrative agent and (2) the sum of (x) the outstanding principal balance of all revolving loans under the 2019 ABL Credit Agreement plus (y) the aggregate undrawn available amount of all letters of credit then outstanding plus the amount of any obligations that arise from any draw against any letter of credit that have not been reimbursed by the borrowers or funded with a revolving loan under the 2019 ABL Credit Agreement (the “Loan Parties Liquidity”), as of the last day of any fiscal month ending on or after November 30, 2019, of at least $10,000,000. As a condition to executing the 2019 Refinancing Amendment Number One and Waiver, the loan parties were required to pay a non-refundable waiver fee of $400,000 and a non-refundable amendment fee of $1,000,000 (the “PIK First Amendment Fee”, which shall be paid in kind by adding the PIK First Amendment Fee to the outstanding principal amount of the 2019 Refinancing Term Loan as additional principal obligations thereunder on and as of the effective date 2019 Refinancing Amendment Number One and Waiver).

During December 2020, the Company was not in compliance with the collateral coverage debt covenant as defined by the 2019 Term Loan financing agreement. The Company was required to maintain at all times a Collateral Coverage Amount (as defined in the 2019 Refinancing Term Loan financing agreement) equal to or greater than the aggregate outstanding principal amount of the 2019 Term Loans. The Company calculated its Collateral Coverage amount at $37.9 million as of December 31, 2020, the aggregate outstanding principal amount of Term Loans was $39.0 million as of that same date for an excess of debt over collateral of $1.1 million. On February 1, 2021, the Company, LFS and LHLLC entered into a Waiver - Collateral Coverage Amount (December 2020) ("December 2020 Waiver") with the lenders party thereto and Cortland Capital Market Services LLC as collateral agent and administrative agent. The December 2020 Waiver included a waiver of the Company's compliance with the Collateral Coverage Amount for the month ending December 31, 2020. The lender waived the event of default arising from this noncompliance as of December 31, 2020, while reserving its rights with respect to covenant compliance in future months.

The 2019 Refinancing Term Loan was paid in full on February 24, 2021 as part of the refinancing transaction.


13.00%.
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2019 Refinancing Agreement - CB Warrants
In connection with the 2019 Refinancing Agreement, on the Refinancing Closing Date, the Company issued to CB and the other lenders under the 2019 Refinancing Agreement warrants (the “CB Warrants”) to purchase up to a maximum of 263,314 shares of the Company's common stock at an exercise price of $7.63 per share subject to certain adjustments, including for stock dividends, stock splits or reclassifications. The actual number of shares of common stock into which the CB Warrants were exercisable at any given time were equal to: (i) the product of (x) the number of shares equal to 2% of the Company’s issued and outstanding shares of common stock on the Refinancing Closing Date on a fully diluted basis and (y) the percentage of the total 2019 Delayed Draw Term Loan made as of the exercise date, minus (ii) the number of shares previously issued under the CB Warrants. As of the Refinancing Closing Date through February 24,the 2021 0Refinancing Date, no amounts had been drawn on the 2019 Delayed Draw Term Loan, so 0no portion of the CB Warrants were exercisable. The CB Warrants were to be exercised for cash or on a “cashless basis,” subject to certain adjustments, at any time after the 2019 Refinancing Closing Date until the expiration of such warrant at 5:00 p.m., New York time, on the earlier of (i) the five (5) year anniversary of the 2019 Refinancing Closing Date, or (ii) the liquidation of the Company.  
Accounting for the 2019 Term Loans and CB Warrants
The CB Warrants represented a freestanding financial instrument that was classified as a liability because the CB Warrants met the definition of a derivative instrument that does not meet the equity scope exception (i.e., the CB Warrants were not indexed to the entity’s own equity). In addition, the material weakness penalty described abovein the 2019 Refinancing Agreement was evaluated as an embedded derivative liability and bifurcated from the 2019 Term Loans as it represented a non-credit related embedded feature that provides for net settlement. Both the CB Warrants liability and the embedded derivative liability were required to be initially and subsequently measured at fair value. The initial fair values of the CB Warrants liability and the embedded derivative liability approximated $0.9 million and $0.4 million, respectively, on the Refinancing Closing Date. The Company estimated these fair values by using the Black-Scholes-Merton option pricing model and a probability-weighted discounted cash flow approach.

The CB Warrants liability was included in other long-term liabilities. The Company remeasured See Note 7 for further discussion on the fair value of the CB Warrants liability as of December 31, 2020 and February 24, 2021 prior to the refinancing date and recorded any adjustments as other income (expense). At both February 24, 2021 and December 31, 2020, the CB Warrants liability was $2.0 million. Due to the extinguishment of the CB Warrants on February 24, 2021, there was 0 liabilitymeasurements associated with the CB Warrants recorded as of June 30, 2021. For the six months ended June 30, 2021, the Company recorded other income of $0.1 million to reflect the change in the fair value of the CB Warrants liability. The Company did not record a change in fair value of the warrant liability during the three months ended June 30, 2021 as the CB Warrants liability was extinguished as part of the debt refinancing on February 24, 2021. For the three and six months ended June 30, 2020, the Company recorded other income of $0.1 million and other expense of $0.1 million to reflect the change in the CB Warrants liability.
The proceeds for the 2019 Refinancing Term Loan were first allocated to the CB Warrants liability and embedded derivative liability based on their respective fair values with a corresponding amount of $1.3 million recorded as a debt discount to the 2019 Term Loans. In addition, the Company incurred approximately $3.9 million of debt issuance costs, including $1.4 million related to the first amendment, for the 2019 Term Loans that have also been recorded as a debt discount. The combined debt discount from the CB Warrants liability, embedded derivative liability and the debt issuance costs were being amortized into interest expense over the term of the 2019 Term Loans using the effective interest method and were expensed on the refinancing date as a loss on early debt extinguishment. The Company recorded interest expense for the amortization of the CB Warrants liability and embedded derivative debt discounts of $0.1 million for the six months ended June 30, 2021. The Company did 0t record interest expense for the amortization of the CB Warrants liability and embedded derivative liability debt discounts for the three months ended June 30, 2021 as these debt discounts were extinguished as part of the debt refinancing on February 24, 2021. The Company recorded interest expense for the amortization of the CB Warrants liability and embedded derivative debt discounts of $0.1 million and $0.2 million for the three and six months ended June 30, 2020, respectively.

In addition to the amortization of the debt discounts into interest expense, the Company recorded $0.1 million of interest expense for the amortization of debt issuance costs related to the 2019 Refinancing Term Loan for the six months ended June 30, 2021. The Company did 0t record any interest expense for the amortization of debt issuance costs for the three months ended June 30, 2021 as the debt issuance costs were extinguished as part of the debt refinancing on February 24, 2021. For the three and six months ended June 30, 2020, the Company recorded an additional $0.4 million and $0.7 million of interest expense, respectively, for the amortization of the debt issuance costs related to the 2019 Refinancing Term Loan.

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Warrants.
2019 ABL Credit Agreement
On the Refinancing Closing Date, LFS also entered into a financing agreement with the lenders thereto and Citizens Bank, N.A., as collateral agent, administrative agent and origination agent (the “2019 ABL Credit Agreement” and, together with the 2019 Refinancing Agreement, the “Refinancing Agreements”). The 2019 ABL Credit Agreement consisted of a $15.0 million revolving credit facility (the “2019 Revolving Credit Facility”). Proceeds of the 2019 Revolving Credit Facility were to be used for general corporate purposes. On the Refinancing Closing Date,November 14, 2019, the Company had nothing drawn onentered into an amendment to the 2019 ABL Credit Agreement (as amended, 2019 ABL Credit Amendment Number One and $14.0 million of available borrowing capacity thereunder (net of a $1.0 million reserve imposed by the lender).
The 2019 Refinancing Borrowers and 2019 Refinancing GuarantorsWaiver), which amended certain provisions under the 2019 ABL Credit Agreement were the same as under the 2019 Refinancing Agreement. The 2019 ABL Credit Agreement was secured by a second-priority lien on the real property of the Loan Parties (behind the 2019 Refinancing Agreement) and a first-priority lien on substantially all other assets of the Loan Parties.
2019 ABL Credit Agreement - Interest Rates and Fees
The interest rate on borrowings under the 2019 ABL Credit Agreement was, at the 2019 Refinancing Borrowers’ option of LFS and its subsidiaries, either LIBOR (with a 2.0% floor) plus an applicable margin ranging from 3.00% to 3.50% or a base rate (with a 3.0% minimum) plus an applicable margin ranging from 2.00% to 2.50%. At February 24,the 2021 (the 2021 refinancing date)Refinancing Date and JuneSeptember 30, 2020, the interest rate in effect on the 2019 ABL Credit Agreement was 5.25%.
2019 ABL Credit Agreement - Other Terms and Conditions
The 2019 ABL Credit Agreement was set to mature on April 12, 2022. There was also an unused line fee ranging from 0.250% to 0.375% per annum on undrawn amounts.
The 2019 ABL Credit Agreement contained representations and warranties, and covenants which are customary for debt facilities of this type. Unless the Required Lenders otherwise consented in writing, the covenants limited the abilityAs of the Company and its restricted subsidiaries to, among other things, generally, to (i) incur additional indebtedness or issue preferred stock, (ii) pay dividends or make distributions to the Company’s stockholders, (iii) purchase or redeem the Company’s equity interests, (iv) make investments, (v) create liens on their assets, (vi) enter into transactions with the Company’s affiliates, (vii) sell assets other than in the ordinary course of business or another permitted disposition of assets and (viii) merge or consolidate with, or dispose of substantially all of the Company’s assets to, other companies.

The 2019 ABL Credit Agreement included customary events of default and other provisions that could require all amounts due thereunder to become immediately due and payable, either automatically or at the option of the lenders, if the Company failed to comply with the terms of the 2019 ABL Credit Agreement or if other customary events occur.
The 2019 ABL Credit Agreement also contained a financial maintenance covenant for the 2019 Revolving Credit Facility, which is a requirement for the Total Leverage Ratio of the Company and its subsidiaries not to exceed an amount beginning at 4.00 to 1.00 through September 30, 2019, and stepping down to 1.75 to 1.00 effective July 1, 2021. In addition, the parties to the 2019 ABL Credit Agreement entered into an amendment which, among other changes revises the maximum permitted Total Leverage Ratio, starting at 3.30 to 1.00 on October 1, 2019 with a peak ratio of 4.25 during March 2020 along with varying monthly rates culminating in the lowest Total Leverage Ratio of 2.00 to 1.00 on April 1, 2021 through the term of such agreement.
In connection with the 2019 ABL Credit Amendment Number One and Waiver, the parties amended certain provisions of the 2019 ABL Credit Agreement, including, among other changes to (i) require the approval of the origination agent and, generally, the lenders representing at least 50.1% of the aggregate undrawn revolving loan commitment or unpaid principal amount of the 2019 Term Loans, prior to effecting any permitted acquisition; (ii) revise the maximum permitted Total Leverage Ratio, starting at 3.30 to 1.00 on October 1, 2019 with a peak ratio of 4.25 during March 2020 along with varying monthly rates culminating in the lowest Total Leverage Ratio of 2.00 to 1.00 on April 1, 2021 through the term of the 2019 ABL Credit Agreement; and (iii) require the Loan Parties Liquidity as of the last day of any fiscal month ending on or after November 30, 2019, of at least $10,000,000, as described above in the Amendment Number One to 2019 Refinancing Agreement and Waiver. As a condition to executing the 2019 ABL Credit Amendment Number One and Waiver, the loan parties were required to pay a non-refundable waiver fee of $7,500.

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As noted above in the section titled: 2019 Refinancing Agreement - Other Terms and Conditions, the Company was subject to cross-default under our 2019 Revolving Credit Facility as a result of our failure to satisfy the Collateral Coverage Amount as defined in the 2019 Term Loan financing agreement, which required the company to obtain a waiver. Accordingly, on February 1, 2021, the Company, LFS and LHLLC entered into a Waiver - Collateral Coverage Amount (December 2020) (“December 2020 Waiver”) with the lenders party thereto and Citizens Bank, N.A., as collateral agent and administrative agent. The December 2020 Waiver included a waiver of the Company's compliance with the Collateral Coverage Amount for the month ending December 31, 2020. The lender has waived the event of default arising from this noncompliance as of December 31, 2020, while reserving its rights with respect to covenant compliance in future months.

At February 24, 2021 (the 2021 refinancing date)Date and December 31, 2020, the Company had irrevocable letters of credit in the amount of $3.4 million with its lender to secure obligations under its self-insurance program.

Accounting for Prior to its refinancing in February 2021, the 2019 ABL Credit Agreement
The Company incurred approximately $0.9 million of debt issuance costs for the 2019 ABL Credit Agreement that had been recorded as a non-current deferred asset. The deferred asset was amortized into interest expense over the term of the 2019 Term ABL Credit Agreement using the effective interest method and then expensed on the February 24, 2021 refinancing date as a loss on early debt extinguishment. The Company recorded $0.1 million of interest expense for the amortization of debt issuance costs for the six months ended June 30, 2021. The Company did 0t record any interest expense for the amortization of debt issuance costs for the three months ended June 30, 2021 as the debt issuance costs were extinguished as part of the debt refinancing on February 24, 2021. For both the three and six months ended June 30, 2020, the Company recorded $0.1 million of interest expense for the amortization of debt issuance costs.

would have matured in April 2022.
Wintrust Term and Revolving Loans

On February 24,the 2021 Refinancing Date, LFS, LHLLC and the direct and indirect subsidiaries of LFS from time to time included as parties to the agreement (the “Wintrust Guarantors”) entered into a Credit Agreement (the “Credit“2021 Credit Agreement”) by and among the LFS, LHLLC, Wintrust Guarantors, the lenders party thereto from time to time, Wheaton Bank & Trust Company, N.A., a subsidiary of Wintrust Financial Corporation (collectively, “Wintrust”), as administrative agent and L/C issuer, Bank of the West as documentation agent, M&T Bank as syndication agent, and Wintrust as lead arranger and sole book runner.

In accordance with the terms of the Credit Agreement, Lenders provideprovided to LFS (i) a $30.0 million senior secured term loan (the “Wintrust Term Loan”); and (ii) a $25.0 million senior secured revolving credit facility with a $5.0 million sublimit for the issuance of letters of credit (the “Wintrust Revolving Loan” and, together with the Wintrust Term Loan, the “Wintrust Loans”). Proceeds of the Wintrust Loans were used to refinance certain existing indebtedness, finance working capital and other general corporate purposes and fund certain fees and expenses associated with the closing of the Wintrust Loans.

The Wintrust Revolving Loan bears interest, at the LFS’s option, at either LIBOR (with a 0.25% floor) plus 3.5% or a base rate (with a 3.0% floor) plus 0.50%, subject to a 50 basis point step-down based on the ratio between the senior debt of the
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Company and its subsidiaries to the EBITDA (earnings before interest, income taxes, depreciation and amortization) of the LFS and its subsidiaries for the most recently ended four fiscal quarters (the “Senior Leverage Ratio”). The Wintrust Term Loan bears interest, at LFS’s option, at either LIBOR (with a 0.25% floor) plus 4.0% or a base rate (with a 3.0% floor) plus 1.00%, subject to a 50 (for LIBOR) or 75 (for base rate) basis point step-down based on the Senior Leverage Ratio.

LFS is required to make principal payments on the Wintrust Term Loan in $0.5 million installments on the last business day of each month commencing on March 31, 2021 with a final payment of all principal and interest not sooner paid on the Wintrust Term Loan due and payable on February 24, 2026. The Wintrust Revolving Loan will mature and become due and payable by LFS on February 24, 2026.

The Wintrust Loans are secured by (i) a valid, perfected and enforceable lien of the administrative agent on the ownership interests held by each of LFS and Wintrust Guarantors in their respective subsidiaries; and (ii) a valid, perfected and enforceable lien of the administrative agent on each of LFS and Wintrust Guarantors’ personal property, fixtures and real estate, subject to certain exceptions and limitations. Additionally, the re-payment of the Wintrust Loans shall be jointly and severally guaranteed by each Wintrust Guarantor.

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The Credit Agreement contains representations and warranties, covenants and events of default that are customary for facilities of this type, as more particularly described in the Credit Agreement. The Wintrust Loans also contain 3 financial maintenance covenants, including (i) a requirement to have as of the last day of each quarter for the senior leverage ratio of the Company and its subsidiaries not to exceed an amount beginning at 2.25 to 1.00 through December 31, 2021, and stepping down to 2.00 to 1.00 at all times thereafter, (ii) a fixed charge coverage ratio of not less than 1.20 to 1.00 as of the last day of each fiscal quarter commencing with the fiscal quarter ending March 31, 2021, and (iii) 0no unfinanced capital expenditures, except for unfinanced capital expenditures in the ordinary course of business not exceeding in the aggregate $4.0 million during any fiscal year; and no default or event of default (as defined by the agreement) has occurred and is continuing, 50% of any portion of this annual limit, if not expended in the fiscal year for which it is permitted, may be carried over for expenditure in the next following fiscal year as stipulated by the agreement. LFS and its affiliates maintain various commercial and service relationships with certain members of the syndicate and their affiliates in the ordinary course of business. As of JuneSeptember 30, 2021, the Company was in compliance with all financial maintenance covenants as required by the Wintrust Loans.

The following is a summary of the additional margin and commitment fees payable on the available Wintrust Term Loan and Wintrust Revolving Loan credit commitment:
LevelLevelSenior Leverage RatioAdditional Margin for
Prime Rate loans
Additional Margin for
Prime Revolving loans
Additional Margin for Eurodollar Term loansAdditional Margin for Eurodollar Revolving loansCommitment FeeLevelSenior Leverage RatioAdditional Margin for
Prime Rate loans
Additional Margin for
Prime Revolving loans
Additional Margin for Eurodollar Term loansAdditional Margin for Eurodollar Revolving loansCommitment Fee
IIGreater than 1.00 to 1.001.00 %0.50 %4.00 %3.50 %0.25 %IGreater than 1.00 to 1.001.00 %0.50 %4.00 %3.50 %0.25 %
IIIILess than or equal to 1.00 to 1.000.25 %%3.50 %3.00 %0.25 %IILess than or equal to 1.00 to 1.000.25 %— %3.50 %3.00 %0.25 %
At JuneSeptember 30, 2021, the interest rate in effect on the Wintrust Term Loan was 4.25% and the interest rate in effect on the Wintrust Revolving Loan was 3.75%.

At JuneSeptember 30, 2021, the Company had irrevocable letters of credit in the amount of $3.4 million with its lender to secure obligations under its self-insurance program.
Note 86 – Equity
The Company’s second amended and restated certificate of incorporation currently authorizes the issuance of 100,000,000 shares of common stock, par value $0.0001, and 1,000,000 shares of preferred stock, par value $0.0001. The
Warrants
In conjunction with the Company's initial public offering, the Company issued Public Warrants, Private Warrants and $15 Exercise Price Sponsor warrantsWarrants (each defined below). The Merger Warrants and Additional Merger Warrants (each defined below) were issued in conjunction with the Company's initial public offering and the Merger and Additional Merger warrants were issued in conjunction with the business combination with LHLLC.
LHLLC in July 2016 (the “Business Combination”).
June 30, 2021December 31, 2020
Public Warrants(1)(5)
2,140,219 2,300,000 
Private Warrants(1)(5)
99,000 99,000 
$15 Exercise Price Sponsor Warrants(2)(5)
600,000 600,000 
Merger Warrants(3)(6)
629,643 631,119 
Additional Merger Warrants(4)(6)
935,068 946,680 
   Total4,403,930 4,576,799 
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September 30, 2021December 31, 2020
Public Warrants(1)(6)
— 2,300,000 
Private Warrants(2)(6)
— 99,000 
$15 Exercise Price Sponsor Warrants(3)(6)
600,000 600,000 
Merger Warrants(4)(7)
629,643 631,119 
Additional Merger Warrants(5)(7)
— 946,680 
   Total1,229,643 4,576,799 
(1)Exercisable for one-half of one share of common stock at an exercise price of $5.75 per half share ($11.50 per whole share) (“Public Warrants”).
(2)    Exercisable for one-half of one share of common stock at an exercise price of $5.75 per half share ($11.50 per whole share) (“Private Warrants”).
(2)(3)    Exercisable for 1 share of common stock at an exercise price of $15.00 per share (“$15 Exercise Price Sponsor Warrants”).
(3)(4)    Exercisable for 1 share of common share at an exercise price of $12.50 per share (“Merger Warrants”).
(4)(5)    Exercisable for 1 share of common stock at an exercise price of $11.50 per share (“Additional Merger Warrants”).
(5)(6)    Issued under a warrant agreement dated July 15, 2014, between Continental Stock Transfer and Trust Company, as warrant agent, and the CompanyCompany.
(6)(7)    Issued to the sellers of LHLLCLHLLC.

Subsequent to June 30, 2021, onOn July 20, 2021, the Public Warrants, Private Warrants, and Additional Merger Warrants expired by their terms.
Incentive Plan
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the Business Combination, the Company adopted an omnibus incentive plan (the “Omnibus Incentive Plan”) for which all future equity awards will be granted thereunder.
On May 24, 2020, the Board of Directors approved further amendments to the Company's amended and restatedinitial Omnibus Incentive Plan (“2020 Amended and Restated Omnibus Incentive Plan”) to increase the number of shares of the Company's common stock that may be issued pursuant to awards by 500,000, for a total of 1,650,000 shares, and extend the term of the plan so that it will expire on the tenth anniversary of the date the stockholders approve the 2020 Amended and Restated Omnibus Incentive Plan. The amendments were approved by the Company's stockholders at the Annual Meeting held on July 14, 2020.
On March 9, 2021, the Board of Directors approved further amendments to the Company's amended2020 Amended and restatedRestated Omnibus Incentive Plan (the “2021 Amended and Restated Omnibus Incentive Plan”) to increase the number of shares of the Company's common stock that may be issued pursuant to awards by 600,000, for a total of 2,250,000 shares, and extend the term of the plan so that it will expire on the tenth anniversary of the date the stockholders approve the 2021 Amended and Restated Omnibus Incentive Plan. The amendments were approved by the Company's stockholders at the Annual Meeting held on June 16, 2021.
See Note 17 - Management Incentive Plans13 for RSUsa discussion of the Company's management incentive plans for restricted stock units (“RSUs”) granted, vested, forfeited and remaining unvested.

Employee Stock Purchase Plan
Upon approval of the Company's stockholders on May 30, 2019, the Company adopted the Limbach Holdings, Inc. 2019 Employee Stock Purchase Plan (“the(the “ ESPP”). On January 1, 2020, the ESPP went into effect. The ESPP enables eligible employees, as defined by the ESPP, the right to purchase the Company's common stock through payroll deductions during consecutive subscription periods at a purchase price of not less than 85% of the fair market value of a common share at the end of each offering period. Annual purchases by participants are limited to the number of whole shares that can be purchased by an amount equal to 10 percent of the participant's compensation or $5,000, whichever is less. Each offering period of the ESPP lasts six months, commencing on January 1 and July 1 of each year. The amounts collected from participants during a subscription period are used on the exercise date to purchase full shares of common stock. Participants may withdraw from an offering before the exercise date and obtain a refund of amounts withheld through payroll deductions. Compensation cost, representing the 15% discount applied to the fair market value of common stock, is recognized on a straight-line basis over the six-month vesting period during which employees perform related services. Under the ESPP, 500,000 shares are authorized to be issued. In July 2020January 2021 and JanuaryJuly 2021, the Company issued 30,8258,928 and 8,92816,140 shares of its common stock, respectively, to participants in the ESPP who contributed to the plan through the June 30, 2020 and December 31, 2020 and June 30, 2021 offering periods, respectively. For the nine months ended September 30, 2020, the Company issued a total of 39,753 shares of its common stock to participants in the ESPP who contributed to the plan during the offering period ending June 30, 2020. As of September 30, 2021, 444,107 shares remain available for future issuance under the ESPP.
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2021 Public Offering
On February 10, 2021 the Company entered into an underwriting agreement (“Underwriting Agreement”) with Lake Street Capital Markets, LLC (“Underwriter”) relating to an underwritten public offering (the “Offering”“2021 Public Offering”). On February 12, 2021, the Company sold to the Underwriter 1,783,500 shares of its Common Stock. The Underwriting Agreement provided for purchase and sale of the Shares by the company to the Underwriter at a price of $11.28 per share. The price to the public in the 2021 Public Offering was $12.00 per share. In addition, under the terms of the Underwriting Agreement, the Company granted the Underwriter a 30-day option to purchase up to an additional 267,525 shares of Common Stock to cover over-allotments, if any, on the same terms and conditions. The net proceeds to the Company from the 2021 Public Offering after deducting the underwriting discounts and commissions were approximately $19.8 million. On February 18, 2021, the Company received approximately $3.0 million of net proceeds for the sale of 267,525 shares in connection with the exercise of the over-allotment option.
Note 97 – Fair Value Measurements
The Company measures the fair value of financial assets and liabilities in accordance with ASC Topic 820 – Fair Value Measurements and Disclosures, which defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements. ASC Topic 820 establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value and requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to measurements involving significant unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are as follows:
Level 1 — inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities that are accessible at the measurement date;
Level 2 — inputs other than quoted prices included in Level 1 that are observable for the asset or liability either directly or indirectly such as quoted prices in active markets for similar assets and liabilities, quoted prices for identical or similar assets or liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of assets or liabilities; and
Level 3 — unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions.
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TableAs discussed in Note 5, prior to its termination as a result of Contents

the 2021 Refinancing, the Company's CB Warrants were determined using the Black-Scholes-Merton option pricing model. The valuation inputs included the quoted price of the Company’s common stock in an active market, volatility and expected life of the warrants, which were considered Level 3 inputs. The CB Warrants liability was included in other long-term liabilities on the Company's Condensed Consolidated Balance Sheets. The Company remeasured the fair value of the CB Warrants liability as of December 31, 2020 and February 24, 2021 and recorded any adjustments to other income (expense). At both February 24, 2021 and December 31, 2020, the CB Warrants liability was $2.0 million. Due to the extinguishment of the CB Warrants on the 2021 Refinancing Date, there was no liability associated with the CB Warrants recorded as of September 30, 2021. For the period from January 1, 2021 through the 2021 Refinancing Date, the Company recorded other income of $0.1 million to reflect the change in the fair value of the CB Warrants liability. For the three and nine months ended September 30, 2020, the Company recorded other expense of $1.4 million and $1.3 million to reflect the change in the CB Warrants liability.
The Company believes that the carrying amountsvalues of its financial instruments, including cash and cash equivalents, trade accounts receivable and accounts payable consist primarily of instruments without extended maturities, which approximate fair value primarily due to the short maturity of the instruments; as such, their short-term maturities and low riskfair values are Level 1 fair value measurements. The carrying values of counterparty default. We also believe that the carrying value ofborrowings under the 2019 Refinancing Agreement term loan and 2021Term Loan (prior to its termination), the Wintrust Term Loan, approximatesthe 2019 Revolving Credit Facility (prior to its termination) and the Wintrust Revolving Loan approximate fair valuesvalue due to the variable raterates on such debt. As of February 24, 2021 and December 31, 2020, the Company determined that the fair value of itsthe 2019 Revolving Agreement term loanTerm Loan was $39.0 million. As of JuneSeptember 30, 2021, the Company determined that the fair value of its 2021the Wintrust Term Loan was $28.0$26.5 million. There were 0 outstanding borrowings on the Company's 2019 ABL Credit Agreement revolver at February 24, 2021 and December 31, 2020. Such fair values were determined using discounted estimated future cash flows using levelLevel 3 inputs.
Note 108 – Earnings per Share
The following table sets forth the computation of the basic and diluted earnings per share attributable to the Company's common shareholders for the three and nine months ended September 30, 2021 and 2020:
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 Three months ended September 30,Nine Months Ended
September 30,
(in thousands, except per share amounts)2021202020212020
EPS numerator:  
Net income$3,986 $2,525 $2,436 $5,420 
EPS denominator:
Weighted average shares outstanding – basic10,266 7,890 9,916 7,845 
Impact of dilutive securities226 217 229 125 
Weighted average shares outstanding – diluted10,492 8,107 10,145 7,970 
EPS:
Basic$0.39 $0.32 $0.25 $0.69 
Diluted(1)
$0.38 $0.31 $0.24 $0.68 
(1)    Diluted EPS assumes the dilutive effect of outstanding common stock warrants and RSUs using the treasury stock method.
 Three months ended June 30,Six months ended June 30,
(in thousands, except per share amounts)2021202020212020
EPS numerator:  
Net income (loss)$732 $2,947 $(1,550)$2,895 
EPS denominator:
Weighted average shares outstanding – basic10,252 7,846 9,738 7,822 
Impact of dilutive securities217 59 56 
Weighted average shares outstanding – diluted10,469 7,905 9,738 7,878 
EPS:
Basic$0.07 $0.38 $(0.16)$0.37 
Diluted$0.07 $0.37 $(0.16)$0.37 
method
.
The following table summarizes the securities that were antidilutive or out-of-the-money, and therefore, were not included in the computations of diluted lossincome per common share:
Three months ended June 30,Six months ended June 30, Three months ended September 30,Nine Months Ended
September 30,
2021202020212020 2021202020212020
In-the-money warrants
Out-of-the-money warrants (see Note 8)4,403,930 4,576,799 4,403,930 4,576,799 
Service-based RSUs (See Note 17)334 463 142,120 1,255 
Out-of-the-money warrants (see Note 6)(1)
Out-of-the-money warrants (see Note 6)(1)
1,885,202 4,576,799 3,571,833 4,576,799 
Service-based RSUs (See Note 13)Service-based RSUs (See Note 13)290 — 155 538 
Performance and market-based RSUs(1)(2)
Performance and market-based RSUs(1)(2)
13,929 9,674 79,971 
Performance and market-based RSUs(1)(2)
36,305 — 8,707 — 
Employee Stock Purchase PlanEmployee Stock Purchase Plan4,778 Employee Stock Purchase Plan— 8,375 — 4,375 
TotalTotal4,418,193 4,586,936 4,630,799 4,578,054 Total1,921,797 4,585,174 3,580,695 4,581,712 
(1)On July 20, 2021, 2,140,214 Public Warrants, 99,000 Private Warrants, and 935,068 Additional Merger Warrants expired by their terms. Through their date of expiration, the Company calculated, on a security-by-security basis, the average market price for the portion of the period in which these securities were outstanding and concluded that these warrants were considered out-of-the-money, and therefore, were not included in the computation of diluted income per common share.
(2)    For the three and sixnine months ended JuneSeptember 30, 2021 and 2020, certain PRSU and MRSU awards (each defined in Note 13) were not included in the computation of diluted lossincome per common share because the performance and market conditions were not satisfied during the periods and would not be satisfied if the reporting date was at the end of the contingency period.
Note 119 – Income Taxes
The Company is taxed as a C corporation.
For interim periods, the provision for income taxes (including federal, state, local and foreign taxes) is calculated based on the estimated annual effective tax rate, adjusted for certain discrete items for the full fiscal year. Cumulative adjustments to the Company's estimate are recorded in the interim period in which a change in the estimated annual effective rate is determined.
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Each quarter we update ourthe Company updates its estimate of the annual effective tax rate, and if ourits estimated tax rate changes, we makethe Company makes a cumulative adjustment.
The Company had an effective tax rate of 26.5%28.8% and an effective tax benefit rate of 33.2%25.7% for the three and sixnine months ended JuneSeptember 30, 2021, respectively. For the three and sixnine months ended JuneSeptember 30, 2020, the Company had an incomeeffective tax rate of 27.4%27.8% and 14.1%21.1%, respectively.
NaNNo valuation allowance was required as of JuneSeptember 30, 2021 or December 31, 2020.
The Company had previously recorded a liability for unrecognized tax benefits (“UTB”UTBs”) related to tax positions taken on its various income tax returns in open tax periods. IfWhen recognized, a portion of unrecognized tax benefitsthe UTBs would favorably impact the effective tax rate that is reported in future periods. The Company filed to change an improper tax method of accounting in the fourth
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quarter of 2020 related to the UTBUTBs that affords the Company IRS audit protection in past periods. Therefore, the total unrecognized tax benefitsUTBs were reduced in the fourth quarter of 2020.

The following is a reconciliationCompany had no UTBs as of the beginningSeptember 30, 2021 and ending unrecognized tax benefits:
 June 30, 2021December 31, 2020
Balance at beginning of period$$1,130 
Gross increases in prior period tax positions
Gross increases in current period tax positions
Decreases related to prior year tax positions(1,130)
Balance at end of period$$
December 31, 2020.

Note 1210 – Operating Segments
The Company determined its operating segmentsAs discussed in Note 1, on the same basis that it assesses performance and makes operating decisions. The Company manages and measures the performance of its business in 2 distinct operating segments. As of January 1, 2021, the Company renamed its existing 2 reportableoperating segments to reflect itsthe Company's 2 distinct approaches to ourits customer base and to better align with ourits owner direct strategy. The previously named Construction Segmentsegment is now known as General Contractor Relationships (“GCR”);GCR and the previously named Service Segmentsegment is now known as Owner Direct Relationships (“ODR”).ODR. These segments are reflective of how the Company’s Chief Operating Decision Maker (“CODM”) reviews operating results for the purposes of allocating resources and assessing performance. The Company's CODM is comprised of its Chief Executive Officer, Chief Financial Officer and Chief Operating Officer.
The accounting policies of the segments are the same as those described in the summary of significant accounting policies. The CODM evaluates performance based on income from operations of the respective segments after the allocation of corporate office operating expenses. In accordance with ASC Topic 280 – Segment Reporting, the Company has elected to aggregate all of the construction activity into 1 GCR reportable segment and all of the service branches into 1 ODR reportable segment. All transactions between segments are eliminated in consolidation. OurThe Company's corporate department provides general and administrative support services to ourits 2 operating segments. The CODM allocates costs between segments for selling, general and administrative and depreciation expense.
All of the Company’s identifiable assets are located in the United States, which is where the Company is domiciled. Interest expense is not allocated to segments because of the corporate management of debt service including interest.
Condensed consolidated segment information for the three and nine months ended September 30, 2021 and 2020 were as follows:
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Condensed consolidated
 Three months ended September 30,Nine Months Ended
September 30,
(in thousands)2021202020212020
Statement of Operations Data:  
Revenue:  
GCR$89,950 $130,498 $262,304 $345,921 
ODR39,227 33,358 101,236 91,892 
Total revenue129,177 163,856 363,540 437,813 
Gross profit:
GCR12,754 14,848 31,034 38,043 
ODR11,709 9,323 29,348 24,687 
Total gross profit24,463 24,171 60,382 62,730 
Selling, general and administrative:
GCR9,586 10,501 27,770 28,700 
ODR8,013 6,240 22,893 18,157 
Corporate703 304 2,016 739 
Total selling, general and administrative18,302 17,045 52,679 47,596 
Amortization of intangibles87 109 295 526 
Operating income$6,074 $7,017 $7,408 $14,608 
Less unallocated amounts:
Interest expense, net(424)(2,154)(2,140)(6,449)
Loss on early debt extinguishment— — (1,961)— 
(Loss) gain on disposition of property and equipment(49)(41)18 
(Loss) gain on change in fair value of warrant liability— (1,371)14 (1,312)
Total unallocated amounts(473)(3,522)(4,128)(7,743)
Income before income taxes$5,601 $3,495 $3,280 $6,865 
Other Data:
Depreciation and amortization:
GCR$1,035 $1,046 $3,091 $3,108 
ODR267 340 967 1,001 
Corporate87 109 295 526 
Total other data$1,389 $1,495 $4,353 $4,635 
The Company does not identify capital expenditures and total assets by segment information forin its internal financial reports due in part to the three months ended June 30, 2021shared use of a centralized fleet of vehicles and 2020specialized equipment. Interest expense is as follows:
 Three months ended June 30,
(in thousands)20212020
Statement of Operations Data:  
Revenue:  
GCR$87,550 $105,937 
ODR33,469 29,248 
Total revenue121,019 135,185 
Gross profit:
GCR8,885 12,213 
ODR9,805 8,122 
Total gross profit18,690 20,335 
Selling, general and administrative:
GCR9,070 8,024 
ODR7,526 5,588 
Corporate636 140 
Total selling, general and administrative17,232 13,752 
Amortization of intangibles104 274 
Operating income$1,354 $6,309 
Operating income for reportable segments$1,354 $6,309 
Less unallocated amounts:
Interest expense, net(452)(2,137)
Gain (loss) on disposition of property and equipment94 (13)
Loss on change in fair value of warrant liability(102)
Total unallocated amounts(358)(2,252)
Income before income taxes$996 $4,057 
Other Data:
Depreciation and amortization:
GCR$1,020 $1,032 
ODR345 330 
Corporate104 274 
Total other data$1,469 $1,636 

Summarized segment information is as follows:
 Three months ended June 30, 2021Three months ended June 30, 2020
(in thousands)GCRODRTotalGCRODRTotal
  
Revenue$87,550 $33,469 $121,019 $105,937 $29,248 $135,185 
Gross Profit8,885 9,805 18,690 12,213 8,122 20,335 
Selling, general and administrative9,070 7,526 16,596 8,024 5,588 13,612 
EBIT$(185)$2,279 $2,094 $4,189 $2,534 $6,723 
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Reconciliationthe Company’s corporate management of segment gross profit to income before income taxes:
Three months ended June 30,
(in thousands)20212020
Total gross profit from reportable segments$18,690 $20,335 
Selling, general and administrative(17,232)(13,752)
Amortization of intangibles(104)(274)
Total other expenses(358)(2,252)
Income before income taxes$996 $4,057 
Condensed consolidated segment information for the six months ended June 30, 2021 and 2020 is as follows:
 Six months ended June 30,
(in thousands)20212020
Statement of Operations Data:  
Revenue:  
GCR$172,354 $215,423 
ODR62,009 58,534 
Total revenue234,363 273,957 
Gross profit:
GCR18,280 23,195 
ODR17,639 15,364 
Total gross profit35,919 38,559 
Selling, general and administrative:
GCR18,184 18,200 
ODR14,880 11,917 
Corporate1,313 435 
Total selling, general and administrative34,377 30,552 
Amortization of intangibles208 417 
Operating income$1,334 $7,590 
Operating income for reportable segments$1,334 $7,590 
Less unallocated amounts:
Interest expense, net(1,716)(4,295)
Gain on disposition of property and equipment17 
Loss on early debt extinguishment(1,961)
Gain on change in fair value of warrant liability14 59 
Total unallocated amounts(3,655)(4,219)
(Loss) income before income taxes$(2,321)$3,371 
Other Data:
Depreciation and amortization:
GCR$2,056 $2,062 
ODR700 661 
Corporate208 417 
Total other data$2,964 $3,140 
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Summarized segment information is as follows:
 Six months ended June 30, 2021Six months ended June 30, 2020
(in thousands)GCRODRTotalGCRODRTotal
  
Revenue$172,354 $62,009 $234,363 $215,423 $58,534 $273,957 
Gross Profit18,280 17,639 35,919 23,195 15,364 38,559 
Selling, general and administrative18,184 14,880 33,064 18,200 11,917 30,117 
EBIT$96 $2,759 $2,855 $4,995 $3,447 $8,442 
Reconciliation of segment gross profit to (loss) income before income taxes:
Six months ended June 30,
(in thousands)20212020
Total gross profit from reportable segments$35,919 $38,559 
Selling, general and administrative(34,377)(30,552)
Amortization of intangibles(208)(417)
Total other expenses(3,655)(4,219)
(Loss) income before income taxes$(2,321)$3,371 
debt service, including interest.
Note 1311 - Leases

The Company leases real estate, trucks and other equipment. The determination of whether an arrangement is, or contains, a lease is performed at the inception of the arrangement. Classification and initial measurement of the right-of-use asset and lease liability are determined at the lease commencement date. The Company elected the short-term lease measurement and recognition exemption; therefore, leases with an initial term of 12 months or less are not recorded on the condensed consolidated balance sheets.

The Company's arrangements include certain non-lease components such as common area and other maintenance for leased real estate, as well as mileage, fuel and maintenance costs related to leased vehicles. For all leased asset classes, the Company has elected to not separate non-lease components from lease components and will account for each separate lease component and non-lease component associated with the lease as a single lease component. The Company does not guarantee any residual
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value in its lease agreements, and there are no material restrictions or covenants imposed by lease arrangements. Real estate leases typically include one or more options to extend the lease. The Company regularly evaluates the renewal options, and when they are reasonably certain of exercise, the Company includes the renewal period in its lease term. For ourthe Company's leased vehicles, the Company uses the interest rate implicit in its leases with the lessor to discount lease payments at the lease commencement date. When the implicit rate is not readily available, as is the case with ourthe Company's real estate leases, the Company uses quoted borrowing rates on ourits secured debt.

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The following table summarizes the lease amounts included in ourthe Company's condensed consolidated balance sheets:
(in thousands)Classification on the Condensed Consolidated Balance SheetsJune 30, 2021December 31, 2020
Assets
Operating
Operating lease right-of-use assets (a)
$16,852 $18,751 
Finance
Property and equipment, net (b)
5,251 6,242 
Total lease assets$22,103 $24,993 
Liabilities
Current
   OperatingCurrent operating lease liabilities$4,122 $3,929 
   FinanceCurrent portion of long-term debt2,454 2,536 
Noncurrent
   OperatingLong-term operating lease liabilities13,454 15,459 
   FinanceLong-term debt3,022 3,923 
Total lease liabilities$23,052 $25,847 

(in thousands)Classification on the Condensed Consolidated Balance SheetsSeptember 30, 2021December 31, 2020
Assets
Operating
Operating lease right-of-use assets (a)
$15,802 $18,751 
Finance
Property and equipment, net (b)
5,116 6,242 
Total lease assets$20,918 $24,993 
Liabilities
Current
   OperatingCurrent operating lease liabilities$4,061 $3,929 
   FinanceCurrent portion of long-term debt2,460 2,536 
Noncurrent
   OperatingLong-term operating lease liabilities12,495 15,459 
   FinanceLong-term debt2,878 3,923 
Total lease liabilities$21,894 $25,847 
(a)     Operating lease assets are recorded net of accumulated amortization of $13.9$15.0 million at JuneSeptember 30, 2021 and $11.9 million at December 31, 2020.
(b)    Finance lease assets are recorded net of accumulated amortization of $5.6$5.8 million at JuneSeptember 30, 2021 and $5.3 million at December 31, 2020.

The following table summarizes the lease costs included in ourthe Company's condensed consolidated statements of operations for the three and sixnine months ended JuneSeptember 30, 2021 and 2020:
Three months ended June 30,Six months ended June 30,
(in thousands)Classification on the Condensed Consolidated Statement of Operations2021202020212020
Operating lease cost
Cost of revenue(a)
$685 $893 $1,375 $1,777 
Operating lease cost
Selling, general and administrative(a)
584 376 1,169 757 
Finance lease cost
   Amortization
Cost of revenue(b)
652 645 1,327 1,311 
   Interest
Interest expense, net(b)
78 86 164 179 
Total lease cost$1,999 $2,000 $4,035 $4,024 

Three Months Ended
September 30,
Nine Months Ended
September 30,
(in thousands)Classification on the Condensed Consolidated Statement of Operations2021202020212020
Operating lease cost
Cost of revenue(a)
$716 $882 $2,088 $2,658 
Operating lease cost
Selling, general and administrative(a)
553 355 1,724 1,110 
Finance lease cost
   Amortization
Cost of revenue(b)
644 684 1,971 2,001 
   Interest
Interest expense, net(b)
72 89 236 269 
Total lease cost$1,985 $2,010 $6,019 $6,038 
(a)    Operating lease costs recorded in cost of sales includes $0.1$0.2 million and $0.2$0.4 million of variable lease costs for the three and sixnine months ended JuneSeptember 30, 2021, respectively, and $0.1$0.2 million and $0.4$0.5 million for the three and sixnine months ended JuneSeptember 30, 2020, respectively. In addition, $0.1 million and $0.2$0.3 million of variable leases costs are included in Selling, general and administrative for the three and sixnine months ended JuneSeptember 30, 2021, respectively, and $0.1zero and $0.2 million for both the three and sixnine months ended JuneSeptember 30, 2020.2020 respectively. These variable costs consist of ourthe Company's proportionate share of operating expenses, real estate taxes and utilities.
(b)     Finance lease costs recorded in cost of revenue include variable lease costs of $0.7 million and $1.3$2.0 million for the three and sixnine months ended JuneSeptember 30, 2021, respectively, and $0.5$0.6 million and $1.2$1.8 million for the three and sixnine months ended JuneSeptember 30, 2020, respectively. These variable lease costs consist of fuel, maintenance, and sales tax charges. NaNNo variable lease costs for finance leases were recorded in selling, general and administrative.
administrative for the
three and nine months ended September 30, 2021 and 2020

.
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Future minimum commitments for finance and operating leases that have non-cancelable lease terms in excess of one year as of JuneSeptember 30, 2021 were as follows:
Year ending (in thousands):Finance
Leases
Operating
Leases
Remainder of 2021$1,401 $2,479 
20222,404 4,616 
20231,409 3,516 
2024598 2,917 
202550 2,409 
Thereafter4,043 
Total minimum lease payments$5,862 $19,980 
Amounts representing interest(386)
Present value of net minimum lease payments$5,476 

Year ending (in thousands):Finance
Leases
Operating
Leases
Remainder of 2021$718 $1,242 
20222,539 4,624 
20231,544 3,516 
2024733 2,917 
2025169 2,409 
Thereafter— 4,043 
Total minimum lease payments$5,703 $18,751 
Amounts representing interest(365)
Present value of net minimum lease payments$5,338 
The following is a summary of the lease terms and discount rates:
June 30, 2021December 31, 2020
Weighted average lease term (in years):
   Operating5.155.48
   Finance2.492.78
Weighted average discount rate:
   Operating4.84 %4.83 %
   Finance5.45 %5.50 %

September 30, 2021December 31, 2020
Weighted average lease term (in years):
   Operating4.995.48
   Finance2.482.78
Weighted average discount rate:
   Operating4.84 %4.83 %
   Finance5.37 %5.50 %
The following is a summary of other information and supplemental cash flow information related to finance and operating leases:
Six months ended June 30,
(in thousands)20212020
Cash paid for amounts included in the measurement of lease liabilities:
   Operating cash flows from operating leases$2,456 $2,910 
   Operating cash flows from finance leases164 179 
   Financing cash flows from finance leases1,318 1,285 
Right-of-use assets exchanged for lease liabilities:
   Operating leases$156 $
   Finance leases336 1,050 
Right-of-use assets disposed or adjusted modifying operating leases liabilities$36 $586 
Right-of-use assets disposed or adjusted modifying finance leases liabilities$$(64)
25
Nine months ended September 30,
(in thousands)20212020
Cash paid for amounts included in the measurement of lease liabilities:
   Operating cash flows from operating leases$3,696 $3,963 
   Operating cash flows from finance leases236 269 
   Financing cash flows from finance leases1,966 1,966 
Right-of-use assets exchanged for lease liabilities:
   Operating leases$156 924 
   Finance leases846 2,399 
Right-of-use assets disposed or adjusted modifying operating leases liabilities$47 586 
Right-of-use assets disposed or adjusted modifying finance leases liabilities$— (64)

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Note 14 – Self-Insurance
The Company purchases workers’ compensation and general liability insurance under policies with per-incident deductibles of $250 thousand and a $4.4 million maximum aggregate deductible loss limit per year.
The components of the self-insurance liability as of June 30, 2021 and December 31, 2020 are as follows:
(in thousands)June 30,
2021
December 31,
2020
Current liability — workers’ compensation and general liability$105 $197 
Current liability — medical and dental511 764 
Non-current liability776 890 
Total liability shown in Accrued expenses and other current liabilities$1,392 $1,851 
Restricted cash$113 $113 
The restricted cash balance represents an imprest cash balance set aside for the funding of workers' compensation and general liability insurance claims. This amount is replenished either when depleted or at the beginning of each month.
Note 1512 – Commitments and Contingencies
Legal. The Company is continually engaged in administrative proceedings, arbitrations, and litigation with owners, general contractors, suppliers, and other unrelated parties, all arising in the ordinary courses of business. The ultimate resolution of these contingencies could, individually or in the aggregate, be material to the condensed consolidated financial statements. In the opinion of the Company’s management, the results of these actions will not have a material adverse effect on the financial position, results of operations, or cash flows of the Company.
On November 13, 2019, claimant, Lanzo Trenchless Technologies, Inc. - North, filed a Demand for Arbitration in the state of Michigan against the Company's wholly-owned subsidiary, Limbach Company LLC. The demand seeks damages in excess of $0.4 million based upon the allegation that Limbach breached a construction contract by improperly terminating Lanzo’s subcontract, and for withholding payment from Lanzo based upon deficient performance. Limbach has assertedIn October of 2021, Lanzo and the
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Company negotiated a counterclaim seeking damages caused by Lanzo’s deficient performance.confidential settlement pursuant to which Lanzo has recently abandoned itspaid the Company to resolve all claims, and the parties are attempting to negotiate a consent judgement in Limbach's favor that will resultresulting in the matter being concluded.
On January 23, 2020, plaintiff, Bernards Bros. Inc., filed a complaint against Limbach Holdings, Inc. in Superior Court of the State of California for the County of Los Angeles against Limbach Holdings, Inc. The complaint alleges that ourthe Company's Southern California operations refused to honor a proposal made to Bernards to act as a subcontractor on a construction project, and that, as a result of the wrongful failure to honor the proposal, Bernards suffered damages in excess of $3.0 million, including alleged increased costs for hiring a different subcontractor to perform the work. The Company is vigorously defending the suit. A non-binding mediation is scheduled fortook place on August 19, 2021 and trialthat did not result in a settlement. Trial is currently expected to take place in February 2022. As of September 30, 2021, the Company believes that a loss is neither probable nor reasonably estimable for this matter, and, as such, has not recorded a loss contingency.
On April 17, 2020, plaintiff, LA Excavating, Inc., filed a complaint against ourthe Company's wholly-owned subsidiary, Limbach Company LP, and several other parties, in Superior Court of the State of California, for the County of Los Angeles. The complaint seeks damages of approximately $1.0 million for alleged failure to pay contract balances and extra work ordered by Limbach, as well as seeks to enforce payment obligations under payment and stop notice release bonds. The Company disputes the allegations and intends to vigorously defend the suit, which is currently set for trial in NovemberMay of 2021.
In July2022. As of 2020, plaintiff, Kimball Construction Co., Inc., filedSeptember 30, 2021, the Company believes that a complaint against our wholly-owned subsidiary, Limbach Company LLC in circuit Courtloss is neither probable nor reasonably estimable for Montgomery County, Maryland. The complaint seeks damages of approximately $1.7 million for alleged failure to pay contract balancesthis matter, and, extra work, as well as to enforce payment obligations undersuch, has not recorded a payment bond issued by Limbach's surety provider. The Company and Kimball have reached a cooperative resolution of these claims, which resulted in a Stipulation of Dismissal of the suit on or about June 21, 2021.
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loss contingency.
Surety. The terms of ourits construction contracts frequently require that we obtainthe Company obtains from surety companies, and provide to ourits customers, payment and performance bonds (“Surety Bonds”) as a condition to the award of such contracts. The Surety Bonds secure ourits payment and performance obligations under such contracts, and we havethe Company has agreed to indemnify the surety companies for amounts, if any, paid by them in respect of Surety Bonds issued on ourits behalf. In addition, at the request of labor unions representing certain of ourthe Company's employees, Surety Bonds are sometimes provided to secure obligations for wages and benefits payable to or for such employees. Public sector contracts require Surety Bonds more frequently than private sector contracts, and accordingly, ourthe Company's bonding requirements typically increase as the amount of public sector work increases. As of JuneSeptember 30, 2021, the Company had approximately $265.3$230.7 million in surety bonds outstanding. The Surety Bonds are issued by surety companies in return for premiums, which vary depending on the size and type of bond.
Collective Bargaining Agreements. Many of the Company’s craft labor employees are covered by collective bargaining agreements. The agreements require the Company to pay specified wages, provide certain benefits and contribute certain amounts to multi-employer pension plans. If the Company withdraws from any of the multi-employer pension plans or if the plans were to otherwise become underfunded, the Company could incur additional liabilities related to these plans. Although the Company has been informed that some of the multi-employer pension plans to which it contributes have been classified as “critical” status, the Company is not currently aware of any significant liabilities related to this issue.
Self-insurance. The Company is substantially self-insured for workers’ compensation and general liability claims, in the view of the relatively high per-incident deductibles we absorb under our insurance arrangements for these risks. The Company purchases workers’ compensation and general liability insurance under policies with per-incident deductibles of $250,000 per occurrence and a $4.4 million maximum aggregate deductible loss limit per year. Losses incurred over primary policy limits are covered by umbrella and excess policies up to specified limits with multiple excess insurers. The Company accrues for the unfunded portion of costs for both reported claims and claims incurred but not reported. The liability for unfunded reported claims and future claims is reflected on the consolidated balance sheets as current and non-current liabilities. The liability is determined by determining a reserve for each reported claim on a case-by-case basis based on the nature of the claim and historical loss experience for similar claims plus an allowance for the cost of incurred but not reported claims. The current portion of the liability is included in accrued expenses and other current liabilities on the consolidated balance sheet. The non-current portion of the liability is included in other long-term liabilities on the consolidated balance sheet.
Note 16 – Remaining Performance ObligationsThe Company is self-insured related to medical and dental claims under policies with annual per-claimant and annual aggregate stop-loss limits. The Company accrues for the unfunded portion of costs for both reported claims and claims incurred but not reported. The liability for unfunded reported claims and future claims is reflected on the consolidated balance sheets as a current liability in accrued expenses and other current liabilities.
Remaining performance obligations representThe components of the transaction priceself-insurance liability as of firm orders for which work has not been performed and exclude unexercised contract options. The Company’s remaining performance obligations includes projects that have a written award, a letter of intent, a notice to proceed or an agreed upon work order to perform work on mutually accepted terms and conditions.
As of JuneSeptember 30, 2021 the aggregate amount of the transaction prices allocated to the remaining performance obligations of the Company's GCR and ODR segment contracts were $378.9 million and $44.2 million, respectively. As of December 31, 2020 are as follows:
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(in thousands)September 30,
2021
December 31,
2020
Current liability — workers’ compensation and general liability$94 $197 
Current liability — medical and dental540 764 
Non-current liability776 890 
Total liability shown in Accrued expenses and other current liabilities$1,410 $1,851 
Restricted cash$113 $113 
The restricted cash balance represents an imprest cash balance set aside for the aggregatefunding of workers' compensation and general liability insurance claims. This amount is replenished either when depleted or at the beginning of the transaction prices allocated to the remaining performance obligations of the Company's GCR and ODR segment contracts were $393.5 million and $35.7 million, respectively.
We estimate that 44% and 62% of our GCR and ODR segment remaining performance obligations as of June 30, 2021, respectively, will be recognized as revenue during 2021, with the substantial majority of remaining performance obligations to be recognized within 24 months, although the timing of the Company's performance is not always under its control.
Additionally, the difference between remaining performance obligations and backlog is due to the exclusion of a portion of the Company’s ODR agreements under certain contract types from the Company’s remaining performance obligations as these contracts can be canceled for convenience at any time by the Company or the customer without considerable cost incurred by the customer. Additional information related to backlog is provided in “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations” of this Quarterly Report on Form 10-Q.each month.
Note 1713 – Management Incentive Plans
The Company initially adopted the Omnibus Incentive Plan on July 20, 2016 for the purpose of: (a) encouraging the profitability and growth of the Company through short-term and long-term incentives that are consistent with the Company’s objectives; (b) giving participants an incentive for excellence in individual performance; (c) promoting teamwork among participants; and (d) giving the Company a significant advantage in attracting and retaining key employees, directors and consultants. To accomplish such purposes, the Omnibus Incentive Plan provides that the Company may grant options, stock appreciation rights, restricted shares, restricted stock units, performance-based awards (including performance-based restricted shares and restricted stock units), other share based awards, other cash-based awards or any combination of the foregoing.
Following the further amendment and restatement of the Omnibus Incentive Plan upon approval of the Company's stockholders on June 16, 2021, the Company has reserved a total of 2,250,000 shares of its common stock for issuance under the Omnibus Incentive Plan. See Note 6 for a further description of the Omnibus Incentive Plan. The number of shares issued or reserved pursuant to the Omnibus Incentive Plan will be adjusted by the plan administrator, as they deem appropriate and equitable, as a result of stock splits, stock dividends, and similar changes in the Company’s common stock. In connection with the grant of an award, the plan administrator may provide for the treatment of such award in the event of a change in control. All awards are made in the form of shares only.
Service-Based Awards
During the first sixnine months of 2021, the Company granted 120,899123,407 service-based RSUs to its executives, certain employees, and non-employee directors under the Omnibus Incentive Plan.
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The following table summarizes ourthe Company's service-based RSU activity for the sixnine months ended JuneSeptember 30, 2021:
AwardsWeighted-Average
Grant Date
Fair Value
AwardsWeighted-Average
Grant Date
Fair Value
Unvested at December 31, 2020Unvested at December 31, 2020285,799 $6.32 Unvested at December 31, 2020285,799 $6.32 
GrantedGranted120,899 12.25 Granted123,407 12.17 
VestedVested(106,383)6.66 Vested(112,784)6.76 
ForfeitedForfeited(2,333)8.27 Forfeited(2,333)8.27 
Unvested at June 30, 2021297,982 $8.59 
Unvested at September 30, 2021Unvested at September 30, 2021294,089 $8.59 
Performance-Based Awards
During the first sixnine months of 2021, the Company granted 185,367 performance-based RSUs (“PRSUs”) to its executives and certain employees under the Omnibus Incentive Plan. The Company will recognize stock-based compensation expense for these awards over the vesting period based on the projected probability of achievement of certain performance conditions as of the end of each reporting period during the performance period and may periodically adjust the recognition of such expense, as necessary, in response to any changes in the Company’s forecasts with respect to the performance conditions. For the three and sixnine months ended JuneSeptember 30, 2021, the Company recognized $0.2 million and $0.4$0.6 million, respectively, of stock-based compensation expense related to outstanding PRSUs. For the three and sixnine months ended JuneSeptember 30, 2020, the Company recognized $0.1 million of stock-based compensation expense related to outstanding PRSUs.PRSUs, respectively.
The following table summarizes ourthe Company's PRSU activity for the sixnine months ended JuneSeptember 30, 2021:
 AwardsWeighted-Average
Grant Date
Fair Value
Unvested at December 31, 202099,500 $4.23 
Granted185,367 12.26 
Vested
Forfeited(4,167)8.92 
Unvested at June 30, 2021280,700 $9.46 
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 AwardsWeighted-Average
Grant Date
Fair Value
Unvested at December 31, 202099,500 $4.23 
Granted185,367 12.26 
Vested— — 
Forfeited(4,167)8.92 
Unvested at September 30, 2021280,700 $9.46 
Market-Based Awards
On September 4, 2020, the Compensation Committee (the “Committee”) of the Board of Directors of the Company approved amendments to certain restricted stock units initially awarded on August 30, 2017 by the Company to certain employees. Pursuant to the amendment adopted on September 4, 2020, the measurement period was extended to July 16, 2022. In addition to the market performance-based vesting condition, the vesting of such restricted stock unit is subject to continued employment from August 1, 2017 through the later of July 31, 2019 or the date on which the Committee certifies the achievement of the performance goal. The Company has accounted for this amendment as a Type I modification and will recognize approximately $0.2 million of incremental stock-based compensation expense over 1.26 years based on an updated Monte Carlo simulation model.
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The following table summarizes ourthe Company's market-based RSU (“MRSUs”) activity for the sixnine months ended JuneSeptember 30, 2021:
AwardsWeighted-Average
Grant Date
Fair Value
AwardsWeighted-Average
Grant Date
Fair Value
Unvested at December 31, 2020Unvested at December 31, 2020102,500 $8.26 Unvested at December 31, 2020102,500 $8.26 
GrantedGrantedGranted— — 
VestedVestedVested— — 
ForfeitedForfeitedForfeited— — 
Unvested at June 30, 2021102,500 $8.26 
Unvested at September 30, 2021Unvested at September 30, 2021102,500 $8.26 
Total recognized stock-based compensation expense amounted to $0.7 million and $1.3$2.0 million for the three and sixnine months ended JuneSeptember 30, 2021, respectively, and $0.1$0.3 million and $0.4$0.7 million for the three and sixnine months ended JuneSeptember 30, 2020, respectively. The aggregate fair value as of the vest date of RSUs that vested during the sixnine months ended JuneSeptember 30, 2021 and 2020 was $1.3$1.4 million and $0.6 million, respectively. Total unrecognized stock-based compensation expense related to unvested RSUs which are probable of vesting was $3.6$2.9 million at JuneSeptember 30, 2021. These costs are expected to be recognized over a weighted average period of 2.01.87 years.


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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations
The following discussion should be read in conjunction with the condensed consolidated financial statements and related notes thereto included elsewhere in this Quarterly Report on Form 10-Q. In addition to historical information, this discussion contains forward-looking statements that involve risks, uncertainties and assumptions that could cause actual results to differ materially from our management’s expectations. Factors that could cause such differences are discussed in “Forward-Looking Statements” and “Risk Factors” in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020 and in subsequent Quarterly Reports on Form 10-Q. See Item 1A. Risk Factors in this Form 10-Q for certain periodic updates to the Company's risk factors. We assume no obligation to update any of these forward-looking statements.
Unless the context otherwise requires, a reference to a “Note” herein refers to the accompanying Notes to Condensed Consolidated Financial Statements (Unaudited) contained in Part I, "Item 1. Financial Statements."
Overview
We areThe Company is an integrated building systems solutions firm whose expertise is in the design, modular prefabrication, installation, management and maintenance of heating, ventilation, and air conditioning (“HVAC”), mechanical, electrical, plumbing and control systems. Our market sectors primarily include the following: healthcare, life sciences, data centers,
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industrial and light manufacturing, entertainment, education and government. Our customers are primarily located throughout Florida, California, Massachusetts, New Jersey, Pennsylvania, Delaware, Maryland, Washington, D.C., Virginia, West Virginia, Ohio and Michigan.
As of January 1, 2021, the Company renamed its existing two reportable segments to reflect our distinct approaches to ourits customer base and to better align with ourits owner direct strategy. The previously named Construction Segment is now known as General Contractor Relationships (“GCR”); the previously named Service Segment is now known as Owner Direct Relationships (“ODR”). The Company operates in two segments that are based on the relationship with its customer,customers, (i) GCR, in which the Company generally manages new construction or renovation projects that involve primarily HVAC, plumbing or electrical services and are awarded to the Company by general contractors or construction managers and (ii) ODR, in which the Company provides maintenance or service primarily on HVAC, plumbing or electrical systems, building controls and specialty contracting projects direct to, or assigned by, building owners or property managers. This work is primarily performed under fixed price, modified fixed price, and time and material contracts over periods of typically less than two years.
Key Components of Condensed Consolidated Statements of Operations
Revenue
We generateThe Company generates revenue principally from fixed-price construction contracts to deliver HVAC, plumbing, and electrical construction services to our customers. The duration of our contracts generally ranges from six months to two years. Revenue from fixed price contracts is recognized on the cost-to-cost method, measured by the relationship of total cost incurred to total estimated contract costs. Revenue from time and materials contracts is recognized as services are performed. We believe that our extensive experience in HVAC, plumbing, and electrical projects, and our internal cost review procedures during the bidding process, enable us to reasonably estimate costs and mitigate the risk of cost overruns on fixed price contracts.
WeThe Company generally invoiceinvoices customers on a monthly basis based on a schedule of values that breaks down the contract amount into discrete billing items. Costs and estimated earnings in excess of billings on uncompleted contracts are recorded as a contract asset until billable under the contract terms. Billings in excess of costs and estimated earnings on uncompleted contracts are recorded as a contract liability until the related revenue is recognizable.
Cost of Revenue
Cost of revenue primarily consists of the labor, equipment, material, subcontract, and other job costs in connection with fulfilling the terms of our contracts. Labor costs consist of wages plus taxes, fringe benefits, and insurance. Equipment costs consist of the ownership and operating costs of company-owned assets, in addition to outside-rented equipment. If applicable, job costs include estimated contract losses to be incurred in future periods. Due to the varied nature of our services, and the risks associated therewith, contract costs as a percentage of contract revenue have historically fluctuated and we expect this fluctuation to continue in future periods.
Selling, General and Administrative
Selling, general and administrative (“SG&A”) consist primarily of personnel costs for our administrative, estimating, human resources, safety, information technology, legal, finance and accounting employees and executives. Also included are non-personnel costs, such as travel-related expenses, legal and other professional fees and other corporate expenses to support the growth of our business and to meet the compliance requirements associated with operating as a public company. Those costs include accounting, human resources, information technology, legal personnel, additional consulting, legal and audit fees, insurance costs, board of directors’ compensation and the costs of achieving and maintaining compliance with Section 404 of the Sarbanes-Oxley Act.
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Amortization of Intangibles
Amortization expense represents periodic non-cash charges that consist of amortization of various intangible assets, primarily including leasehold interests and certain customer relationships in the ODR segment.
Other Income/ExpenseIncome (Expense)
Other income/expense, netincome (expense) consists primarily of interest expense incurred in connection with ourthe Company's debt, net of interest income, loss on early debt extinguishment, gain and loss on the sale of property and equipment and changes in fair value of warrant liability. Deferred financing costs are amortized to interest expense using the effective interest method.
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Income Taxes
We areThe Company is taxed as a C corporation and ourits financial results include the effects of federal income taxes which are paid at the parent level.
For interim periods, the provision for income taxes (including federal, state and local taxes) is calculated based on the estimated annual effective tax rate. The Company accounts for income taxes in accordance with ASC Topic 740 - Income Taxes, which requires the use of the asset and liability method. Under this method, deferred tax assets and liabilities and income or expense are recognized for the expected future tax consequences of temporary differences between the financial statement carrying values and their respective tax bases, using enacted tax rates expected to be applicable in the years in which the temporary differences are expected to reverse. Changes in deferred tax assets and liabilities are recorded in the provision for income taxes.
Operating Segments
As of January 1, 2021, theThe Company renamed its existing two reportable segments to reflect our two distinct approaches to our customer base and to better align with our owner direct strategy. The previously named Construction Segment is now known as General Contractor Relationships (“GCR”); the previously named Service Segment is now known as Owner Direct Relationships (“ODR”). We managemanages and measure the performance of ourits business in these two operating segments. These segments are reflective of how the Company’s Chief Operating Decision Makers (“CODM”) reviews its operating results for the purposes of allocating resources and assessing performance. Our CODM is comprised of our Chief Executive Officer, Chief Financial Officer and Chief Operating Officer.
The accounting policies of the segments are the same as those described in the summary of significant accounting policies. The CODM evaluates performance based on income from operations of the respective branches after the allocation of corporate office operating expenses. In accordance with ASC Topic 280 – Segment Reporting, the Company has elected to aggregate all of the GCR work performed at branches into one GCR reportable segment and all of the ODR work performed at branches into one ODR reportable segment. All transactions between segments are eliminated in consolidation. Our corporate department provides general and administrative support services to our two operating segments. We allocate costs between segments for selling, general and administrative and depreciation expense. Interest expense is not allocated to segments because of the corporate management of debt service. See Note 12 – Operating Segments in10 for further discussion on the notes to condensed consolidated financial statements.
Company's operating segments.
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Comparison of Results of Operations for the three months ended JuneSeptember 30, 2021 and 2020
The following table presents operating results for the three months ended JuneSeptember 30, 2021 and 2020 in dollars and expressed as a percentage of total revenue (except as indicated below), as compared below:
Three months ended June 30, Three Months Ended September 30,
20212020 20212020
(in thousands except for percentages)(in thousands except for percentages)(in thousands except for percentages)
Statement of Operations Data:Statement of Operations Data:    Statement of Operations Data:    
Revenue:Revenue:    Revenue:    
GCRGCR$87,550 72.3 %$105,937 78.4 %GCR$89,950 69.6 %$130,498 79.6 %
ODRODR33,469 27.7 %29,248 21.6 %ODR39,227 30.4 %33,358 20.4 %
Total revenueTotal revenue121,019 100.0 %135,185 100.0 %Total revenue129,177 100.0 %163,856 100.0 %
Gross profit:Gross profit:    Gross profit:    
GCRGCR8,885 10.1 %(1)12,213 11.5 %(1)GCR12,754 14.2 %(1)14,848 11.4 %(1)
ODRODR9,805 29.3 %(2)8,122 27.8 %(2)ODR11,709 29.8 %(2)9,323 27.9 %(2)
Total gross profitTotal gross profit18,690 15.4 %20,335 15.0 %Total gross profit24,463 18.9 %24,171 14.8 %
Selling, general and administrative:Selling, general and administrative:    Selling, general and administrative:    
GCRGCR9,070 10.4 %(1)8,024 7.6 %(1)GCR9,586 10.7 %(1)10,501 8.0 %(1)
ODRODR7,526 22.5 %(2)5,588 19.1 %(2)ODR8,013 20.4 %(2)6,240 18.7 %(2)
CorporateCorporate636 0.5 %140 0.1 %Corporate703 0.5 %304 0.2 %
Total selling, general and administrativeTotal selling, general and administrative17,232 14.2 %13,752 10.2 %Total selling, general and administrative18,302 14.2 %17,045 10.4 %
Amortization of intangibles (Corporate)Amortization of intangibles (Corporate)104 0.1 %274 0.2 %Amortization of intangibles (Corporate)87 0.1 %109 0.1 %
Operating (loss) income:    
Operating income (loss):Operating income (loss):    
GCRGCR(185)(0.2)%(1)4,189 4.0 %(1)GCR3,168 3.5 %(1)4,347 3.3 %(1)
ODRODR2,279 6.8 %(2)2,534 8.7 %(2)ODR3,696 9.4 %(2)3,083 9.2 %(2)
CorporateCorporate(740)— %(414)— %Corporate(790)— %(413)— %
Total operating incomeTotal operating income1,354 1.1 %6,309 4.7 %Total operating income6,074 4.7 %7,017 4.3 %
Other expenses (Corporate) Other expenses (Corporate)(358)(0.3)%(2,252)(1.7)% Other expenses (Corporate)(473)(0.4)%(3,522)(2.1)%
Total consolidated income before income taxesTotal consolidated income before income taxes996 0.8 %4,057 3.0 %Total consolidated income before income taxes5,601 4.3 %3,495 2.1 %
Income tax provisionIncome tax provision264 0.2 %1,110 0.8 %Income tax provision1,615 1.3 %970 0.6 %
Net incomeNet income$732 0.6 %$2,947 2.2 %Net income$3,986 3.1 %$2,525 1.5 %
(1)As a percentage of GCR revenue.
(2)As a percentage of ODR revenue.
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Revenue
Three months ended June 30, Three Months Ended September 30,
20212020Increase/(Decrease) 20212020Increase/(Decrease)
(in thousands except for percentages)(in thousands except for percentages)(in thousands except for percentages)
Revenue:Revenue:    Revenue:    
GCRGCR$87,550 $105,937 $(18,387)(17.4)%GCR$89,950 $130,498 $(40,548)(31.1)%
ODRODR33,469 29,248 4,221 14.4 %ODR39,227 33,358 5,869 17.6 %
Total revenueTotal revenue$121,019 $135,185 $(14,166)(10.5)%Total revenue$129,177 $163,856 $(34,679)(21.2)%
Revenue for the three months ended JuneSeptember 30, 2021 decreased by $14.2$34.7 million compared to the revenue for the three months ended JuneSeptember 30, 2020. GCR revenue decreased by $18.4$40.5 million, or 17.4%31.1%, while ODR revenue increased by $4.2$5.9 million, or 14.4%17.6%. The decrease in period over period GCR segment revenue of $87.6 million decreasedwas primarily due to a planned decrease in the Southern California operating region and other decreasesdecreased revenue across the majority of the Company's operating regions. The increase in period over period ODR segment revenue was primarily due to increases in the Florida,Ohio, Michigan, Eastern Pennsylvania and Ohio operating regions. These decreases were partiallyNew Jersey regions, offset by revenue increases in the New England and Michigan operating regions largely due to the start of new projects and the continuation of work on existing projects. Ohio, Michigan, and Eastern Pennsylvania regions' ODR revenue increased quarter over quarter offsetpartly by declines in ODR revenue in Florida, Mid-Atlantic and Mid-Atlantic.New England. Maintenance contract revenue, a component of ODR revenue, increased by $0.3 million compared to June 30, 2020.period over period.
Gross Profit
Three months ended June 30, Three Months Ended September 30,
20212020Increase/(Decrease) 20212020Increase/(Decrease)
(in thousands except for percentages)(in thousands except for percentages)(in thousands except for percentages)
Gross Profit:Gross Profit:    Gross Profit:    
GCRGCR$8,885 $12,213 $(3,328)(27.2)%GCR$12,754 $14,848 $(2,094)(14.1)%
ODRODR9,805 8,122 1,683 20.7 %ODR11,709 9,323 2,386 25.6 %
Total gross profitTotal gross profit$18,690 $20,335 $(1,645)(8.1)%Total gross profit$24,463 $24,171 $292 1.2 %
Total gross profit as a percentage of consolidated total revenueTotal gross profit as a percentage of consolidated total revenue15.4 %15.0 %  Total gross profit as a percentage of consolidated total revenue18.9 %14.8 %  
OurThe Company's gross profit for the three months ended JuneSeptember 30, 2021 decreasedincreased by $1.6$0.3 million compared to our gross profit for the three months ended JuneSeptember 30, 2020. GCR gross profit decreased $3.3$2.1 million, or 27.2%14.1%, largely due to lower revenue, at reduced margins.despite having a higher margin. ODR gross profit increased $1.7$2.4 million, or 20.7%25.6%, due to an increase in revenue at higher margins. The total gross profit percentage increased from 15.0%14.8% for the three months ended JuneSeptember 30, 2020 to 15.4%18.9% for the same period ended in 2021, mainly driven by the mix of higher margin ODR segment work.

We recorded revisions in our contract estimates for certain GCR and ODR projects. For the three months ended JuneSeptember 30, 2021, and 2020,total net gross profit write-ups were $1.2 million compared to total net gross profit write-downs were $1.1of $0.8 million and $2.0 million, respectively.for the three months ended September 30, 2020. For projects having a material gross profit impact of $0.25 million or more for the three months ended JuneSeptember 30, 2021, this resulted in material gross profit write downswrite-downs on three GCR segment projects of $1.7 million and one ODR project for $0.3$1.4 million. Of the material GCR segment write downs, one project was within the Michigan region for a total of $1.0 million,write-downs, one project was within the New England region for $0.3$0.6 million, and one project wastwo projects were within the Southern California region for $0.4a total of $0.8 million. The Company also recorded material gross profit write-ups on three GCR segment projects of $1.2 million. Of the material ODRGCR segment write downs,write-ups, one project was within the Eastern PennsylvaniaNew England region for $0.3 million. We also recorded material gross profit write ups of $0.3$0.6 million on one GCR segment project inand two were within the Florida region and $0.3 million on one ODR segment project in the Michigan region.for a total of $0.6 million. For the three months ended JuneSeptember 30, 2020, wethe Company recorded material revisions in ourits contract estimates on fourfive GCR projects which resulted in gross profit write downswrite-downs of $1.5$2.4 million. TwoThree of these projects were within the Southern California region for a total of $0.7$1.8 million. NoThe Company also recorded a $0.4 million material project revisionsrevision resulting in materiala gross profit write ups were recorded duringwrite-up on one GCR project within the Southern California region for the three months ended JuneSeptember 30, 2020.

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Selling, General and Administrative
Three months ended June 30, Three Months Ended September 30,
20212020Increase/(Decrease) 20212020Increase/(Decrease)
(in thousands except for percentages)(in thousands except for percentages)(in thousands except for percentages)
Selling, general and administrative:Selling, general and administrative:    Selling, general and administrative:    
GCRGCR$9,070 $8,024 $1,046 13.0 %GCR$9,586 $10,501 $(915)(8.7)%
ODRODR7,526 5,588 1,938 34.7 %ODR8,013 6,240 1,773 28.4 %
CorporateCorporate636 140 496 354.3 %Corporate703 304 399 131.3 %
Total selling, general and administrativeTotal selling, general and administrative$17,232 $13,752 $3,480 25.3 %Total selling, general and administrative$18,302 $17,045 $1,257 7.4 %
Selling, general and administrative as a percentage of consolidated total revenueSelling, general and administrative as a percentage of consolidated total revenue14.2 %10.2 %  Selling, general and administrative as a percentage of consolidated total revenue14.2 %10.4 %  
Our total selling, general and administrative (“The Company's SG&A”) increased by approximately $3.5 million to $17.2 million&A expense for the three months ended JuneSeptember 30, 2021 increased by approximately $1.3 million compared to $13.8 million for the three months ended JuneSeptember 30, 2020. TotalThe increase in SG&A increasedwas primarily due to $0.6 million in additional payroll expenses, a $0.5 million increase in professional fees, a $0.4 million increase in rent, a $0.5$0.7 million increase in travel and entertainment andexpenses, a $0.5$0.4 million increase in stock basedstock-based compensation expense and a $0.3 million increase in rent expense. Our payroll and travelTravel and entertainment expenses during the three months ended JuneSeptember 30, 2021 were higher than the three months ended JuneSeptember 30, 2020 due to temporary, pandemic-driven operational reductions in 2020 and our continued investment in ODR expansion in 2021. Additionally, total SG&A as a percentage of revenues were 14.2% for the three months ended JuneSeptember 30, 2021 and 10.2%10.4% for the three months ended JuneSeptember 30, 2020.
Amortization of Intangibles
Three months ended June 30, Three Months Ended September 30,
20212020Increase/(Decrease) 20212020Increase/(Decrease)
(in thousands except for percentages)(in thousands except for percentages)(in thousands except for percentages)
Amortization of intangibles (Corporate)Amortization of intangibles (Corporate)$104 $274 $(170)(62.0)%Amortization of intangibles (Corporate)$87 $109 $(22)(20.2)%
Total amortization expense for the three months ended JuneSeptember 30, 2021 was $0.1 million as compared to $0.2$0.1 million for the three months ended JuneSeptember 30, 2020. See Note 4 for further information on the Company's intangible assets.
Other Expenses
Three months ended June 30, Three Months Ended September 30,
20212020Increase/(Decrease) 20212020Increase/(Decrease)
(in thousands except for percentages)(in thousands except for percentages)(in thousands except for percentages)
Other income (expenses):    
Other (expenses) income:Other (expenses) income:    
Interest expense, netInterest expense, net$(452)$(2,137)$1,685 (78.8)%Interest expense, net$(424)$(2,154)$1,730 (80.3)%
Gain (loss) on disposition of property and equipment94 (13)107 (823.1)%
(Loss) gain on disposition of property and equipment(Loss) gain on disposition of property and equipment(49)(52)(1,733.3)%
Loss on change in fair value of warrant liabilityLoss on change in fair value of warrant liability— (102)102 (100.0)%Loss on change in fair value of warrant liability— (1,371)1,371 (100.0)%
Total other expensesTotal other expenses$(358)$(2,252)$1,894 (84.1)%Total other expenses$(473)$(3,522)$3,049 (86.6)%
Other income (expenses) consistconsisted of interest expense of $0.5$0.4 million for the three months ended JuneSeptember 30, 2021 as compared to $2.1$2.2 million of interest expense for the three months ended JuneSeptember 30, 2020. The reduction in interest expense yearperiod over year isperiod was due to the refinancing of the higher interest rate debt with a lower interest rate debt instrument as a result of the 2021 Refinancing. The decrease in late February 2021.total other expenses was also attributable to a $1.4 million loss recorded during the three months ended September 30, 2020 to recognize the change in fair value of the CB Warrants liability.
Income Taxes
The Company recorded a $0.3$1.6 million and $1.1$1.0 million income tax provision for the three months ended JuneSeptember 30, 2021 and 2020, respectively.
The effective tax rate was 26.5%28.8% and 27.4%27.8% for the three months ended JuneSeptember 30, 2021 and 2020, respectively.
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Comparison of Results of Operations for the sixnine months ended JuneSeptember 30, 2021 and 2020
The following table presents operating results for the sixnine months ended JuneSeptember 30, 2021 and 2020 in dollars and expressed as a percentage of total revenue (except as indicated below), as compared below:
Six months ended June 30, Nine months ended September 30,
20212020 20212020
(in thousands except for percentages)(in thousands except for percentages)(in thousands except for percentages)
Statement of Operations Data:Statement of Operations Data:    Statement of Operations Data:    
Revenue:Revenue:    Revenue:    
GCRGCR$172,354 73.5 %$215,423 78.6 %GCR$262,304 72.2 %$345,921 79.0 %
ODRODR62,009 26.5 %58,534 21.4 %ODR101,236 27.8 %91,892 21.0 %
Total revenueTotal revenue234,363 100.0 %273,957 100.0 %Total revenue363,540 100.0 %437,813 100.0 %
Gross profit:Gross profit:    Gross profit:    
GCRGCR18,280 10.6 %(1)23,195 10.8 %(1)GCR31,034 11.8 %(1)38,043 11.0 %(1)
ODRODR17,639 28.4 %(2)15,364 26.2 %(2)ODR29,348 29.0 %(2)24,687 26.9 %(2)
Total gross profitTotal gross profit35,919 15.3 %38,559 14.1 %Total gross profit60,382 16.6 %62,730 14.3 %
Selling, general and administrative:Selling, general and administrative:    Selling, general and administrative:    
GCRGCR18,184 10.6 %(1)18,200 8.4 %(1)GCR27,770 10.6 %(1)28,700 8.3 %(1)
ODRODR14,880 24.0 %(2)11,917 20.4 %(2)ODR22,893 22.6 %(2)18,157 19.8 %(2)
CorporateCorporate1,313 0.6 %435 0.2 %Corporate2,016 0.6 %739 0.2 %
Total selling, general and administrativeTotal selling, general and administrative34,377 14.7 %30,552 11.2 %Total selling, general and administrative52,679 14.5 %47,596 10.9 %
Amortization of intangibles (Corporate)Amortization of intangibles (Corporate)208 0.1 %417 0.2 %Amortization of intangibles (Corporate)295 0.1 %526 0.1 %
Operating (loss) income:    
Operating income (loss):Operating income (loss):    
GCRGCR96 0.1 %(1)4,995 2.3 %(1)GCR3,264 1.2 %(1)9,343 2.7 %(1)
ODRODR2,759 4.4 %(2)3,447 5.9 %(2)ODR6,455 6.4 %(2)6,530 7.1 %(2)
CorporateCorporate(1,521)— %(852)— %Corporate(2,311)— %(1,265)— %
Total operating incomeTotal operating income1,334 0.6 %7,590 2.8 %Total operating income7,408 2.0 %14,608 3.3 %
Other expenses (Corporate) Other expenses (Corporate)(3,655)(1.6)%(4,219)(1.5)% Other expenses (Corporate)(4,128)(1.1)%(7,743)(1.8)%
Total consolidated (loss) income before income taxes(2,321)(1.0)%3,371 1.2 %
Income tax (benefit) provision(771)(0.3)%476 0.2 %
Net (loss) income$(1,550)(0.7)%$2,895 1.1 %
Total consolidated income before income taxesTotal consolidated income before income taxes3,280 0.9 %6,865 1.6 %
Income tax provisionIncome tax provision844 0.2 %1,445 0.3 %
Net incomeNet income$2,436 0.7 %$5,420 1.2 %
(1)As a percentage of GCR revenue.
(2)As a percentage of ODR revenue.
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Revenue
Six months ended June 30, Nine months ended September 30,
20212020Increase/(Decrease) 20212020Increase/(Decrease)
(in thousands except for percentages)(in thousands except for percentages)(in thousands except for percentages)
Revenue:Revenue:    Revenue:    
GCRGCR$172,354 $215,423 $(43,069)(20.0)%GCR$262,304 $345,921 $(83,617)(24.2)%
ODRODR62,009 58,534 3,475 5.9 %ODR101,236 91,892 9,344 10.2 %
Total revenueTotal revenue$234,363 $273,957 $(39,594)(14.5)%Total revenue$363,540 $437,813 $(74,273)(17.0)%
Revenue for the sixnine months ended JuneSeptember 30, 2021 decreased by $39.6$74.3 million compared to the revenue for the sixnine months ended JuneSeptember 30, 2020. GCR revenue decreased by $43.1$83.6 million, or 20.0%24.2%, while ODR revenue increased by $3.5$9.3 million, or 5.9%10.2%. The decrease in GCR segment revenue of $172.4 million decreasedwas primarily due to a planned decrease in the Southern California and Mid-Atlantic operating regions and other decreases indecreased revenue across the Florida, Eastern Pennsylvania, Ohio, and Western Pennsylvaniamajority of the Company's operating regions. These decreases were partially offset byThe increase in ODR segment revenue was primarily due to increases in the Michigan and New England operating regions largely due to the start of new projects and the continuation of work on existing projects. Ohio, Eastern Pennsylvania and Michigan and New England regions' ODR revenue increased nearlyregions, offset partially by declines in ODR revenue in Florida and Mid-Atlantic. Maintenance contract revenue, a component of ODR revenue, increased by $0.4$0.7 million compared to the sixnine months ended JuneSeptember 30, 2020.
Gross Profit
Six months ended June 30, Nine months ended September 30,
20212020Increase/(Decrease) 20212020Increase/(Decrease)
(in thousands except for percentages)(in thousands except for percentages)(in thousands except for percentages)
Gross Profit:Gross Profit:    Gross Profit:    
GCRGCR$18,280 $23,195 $(4,915)(21.2)%GCR$31,034 $38,043 $(7,009)(18.4)%
ODRODR17,639 15,364 2,275 14.8 %ODR29,348 24,687 4,661 18.9 %
Total gross profitTotal gross profit$35,919 $38,559 $(2,640)(6.8)%Total gross profit$60,382 $62,730 $(2,348)(3.7)%
Total gross profit as a percentage of consolidated total revenueTotal gross profit as a percentage of consolidated total revenue15.3 %14.1 %  Total gross profit as a percentage of consolidated total revenue16.6 %14.3 %  
OurThe Company's gross profit for the sixnine months ended JuneSeptember 30, 2021 decreased by $2.6$2.3 million compared to our gross profit for the sixnine months ended JuneSeptember 30, 2020. GCR gross profit decreased $4.9$7.0 million, or 21.2%18.4%, largely due to lower revenue, atdespite having slightly lowerhigher margins. ODR gross profit increased $2.3$4.7 million, or 14.8%18.9%, due to an increase in revenue at higher margins. The total gross profit percentage increased from 14.1%14.3% for the sixnine months ended JuneSeptember 30, 2020 to 15.3%16.6% for the same period ended in 2021, mainly driven by the mix of higher margin ODR segment work.

For the sixnine months ended JuneSeptember 30, 2021 and 2020, total net gross profit write-downs were $1.7$1.3 million and $3.4$4.2 million, respectively. For projects having a material gross profit impact of $0.25 million or more, wethe Company recorded gross profit write downswrite-downs on eightnine GCR segment projects of $3.5$5.3 million and one ODR project for $0.3 million. Of the material GCR segment write downs,write-downs, three projects were within the Southern California region for a total of $1.8 million, two projects were within the Michigan region for a total of $1.2$1.3 million, two projects were within the Eastern Pennsylvania region for $1.0 million, two projects were within the Southern California region for $0.8a total of $1.2 million, one project was within the New England region for $0.3$0.7 million, and one project was within the Mid-Atlantic region for $0.3 million. WeThe Company also materially wrote downwrote-down one ODR segment project within the Eastern Pennsylvania region for $0.3 million. WeThe Company also recorded material GCR segment gross profit write upswrite-ups of $2.9 million on seven GCR segment projects. Of the material GCR segment write-ups, two projects were within the Florida region for a total of $0.9 million, on one GCR segment project inwas within the Michigan region for $0.5$0.7 million, and one projecttwo projects were within the Ohio region for a total of $0.6 million, one project was within the New England region for $0.4 million and one project was within the Mid-Atlantic region for $0.3 million. For the sixnine months ended JuneSeptember 30, 2020, wethe Company recorded eleven material gross profit write downswrite-downs and three gross profit write-ups on eightmaterial GCR projects, and two gross profit write ups on GCR projects, for anresulting in aggregate revisionrevisions of $5.2$7.5 million and $1.2$1.6 million, respectively.
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Selling, General and Administrative
Six months ended June 30, Nine months ended September 30,
20212020Increase/(Decrease) 20212020Increase/(Decrease)
(in thousands except for percentages)(in thousands except for percentages)(in thousands except for percentages)
Selling, general and administrative:Selling, general and administrative:    Selling, general and administrative:    
GCRGCR$18,184 $18,200 $(16)(0.1)%GCR$27,770 $28,700 $(930)(3.2)%
ODRODR14,880 11,917 2,963 24.9 %ODR22,893 18,157 4,736 26.1 %
CorporateCorporate1,313 435 878 201.8 %Corporate2,016 739 1,277 172.8 %
Total selling, general and administrativeTotal selling, general and administrative$34,377 $30,552 $3,825 12.5 %Total selling, general and administrative$52,679 $47,596 $5,083 10.7 %
Selling, general and administrative as a percentage of consolidated total revenueSelling, general and administrative as a percentage of consolidated total revenue14.7 %11.2 %  Selling, general and administrative as a percentage of consolidated total revenue14.5 %10.9 %  
Our total selling, general and administrative (“The Company's SG&A”)&A expense for the nine months ended September 30, 2021 increased by approximately $3.8$5.1 million compared to $34.4 million for the sixnine months ended June 30, 2021 compared to $30.6 million for the six months ended JuneSeptember 30, 2020. TotalThe increase in SG&A increasedwas primarily due to a $1.1$1.3 million increase in professional fees, a $0.8 million increase in rent andstock-based compensation expense, a $0.9 million increase in stock based compensation expense. Our payrollprofessional services, a $0.9 million increase in rent expense and a $0.8 million increase travel and entertainment expenses remained flat during the six months ended June 30, 2021 compared to the six months ended June 30, 2020, as our investment in ODR expansion in 2021 was offset by severance expense incurred in 2020 due to our pandemic-driven operational reductions.expense. Additionally, total SG&A as a percentage of revenues were 14.7%14.5% for the sixnine months ended JuneSeptember 30, 2021 and 11.2%10.9% for the sixnine months ended JuneSeptember 30, 2020.
Amortization of Intangibles
Six months ended June 30, Nine months ended September 30,
20212020Increase/(Decrease) 20212020Increase/(Decrease)
(in thousands except for percentages)(in thousands except for percentages)(in thousands except for percentages)
Amortization of intangibles (Corporate)Amortization of intangibles (Corporate)$208 $417 $(209)(50.1)%Amortization of intangibles (Corporate)$295 $526 $(231)(43.9)%
Total amortizationAmortization expense for the sixnine months ended JuneSeptember 30, 2021 was $0.2$0.3 million compared to $0.4$0.5 million for the sixnine months ended JuneSeptember 30, 2020. See Note 4 for further information on the Company's intangible assets.
Other Expenses
Six months ended June 30, Nine months ended September 30,
20212020Increase/(Decrease) 20212020Increase/(Decrease)
(in thousands except for percentages)(in thousands except for percentages)(in thousands except for percentages)
Other income (expenses):    
Other (expenses) income:Other (expenses) income:    
Interest expense, netInterest expense, net$(1,716)$(4,295)$2,579 (60.0)%Interest expense, net$(2,140)$(6,449)$4,309 (66.8)%
Gain on disposition of property and equipment Gain on disposition of property and equipment17 (9)(52.9)% Gain on disposition of property and equipment(41)18 (59)(327.8)%
Loss on early debt extinguishment Loss on early debt extinguishment(1,961)— (1,961)100.0 % Loss on early debt extinguishment(1,961)— (1,961)100.0 %
Gain on change in fair value of warrant liability Gain on change in fair value of warrant liability14 59 (45)(76.3)% Gain on change in fair value of warrant liability14 (1,312)1,326 (101.1)%
Total other expensesTotal other expenses$(3,655)$(4,219)$564 (13.4)%Total other expenses$(4,128)$(7,743)$3,615 (46.7)%
Other (expenses) income (expenses) consistconsisted of interest expense of $1.7$2.1 million for the sixnine months ended JuneSeptember 30, 2021 as compared to $4.3$6.4 million of interest expense for the sixnine months ended JuneSeptember 30, 2020. The reduction in interest expense yearperiod over year isperiod was due to the refinancing of the higher interest rate debt with a lower interest rate debt instrument as a result of the 2021 Refinancing. The decrease in late February 2021. The Company recognizedother expenses period over period was also attributable to a loss of $1.3 million associated with the change in fair value of the CB Warrants liability. These decreases were partially offset by a $2.0 million loss on the early debt extinguishment of $2.0 million in connection with its refinancing of the 2019 Refinancing Term Loan and 2019 Revolving Credit Facilitydebt associated with the Wintrust Term Loan and Wintrust Revolving Loan.

Company's 2021 Refinancing.
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Income Taxes
The Company recorded a $0.8 million income tax benefit and a $0.5$1.4 million income tax provision for the sixnine months ended JuneSeptember 30, 2021 and 2020, respectively.
The Company had a 33.2%25.7% effective tax benefit rate for the sixnine months ended JuneSeptember 30, 2021 and a 14.1%21.1% effective tax rate for the sixnine months ended JuneSeptember 30, 2020.
GCR and ODR Backlog Information
We refer to our estimated revenue on uncompleted contracts, including the amount of revenue on contracts for which work has not begun, less the revenue we have recognized under such contracts, as “backlog.” Backlog includes unexercised contract options. Our backlog includes projects that have a written award, a letter of intent, a notice to proceed or an agreed upon work order to perform work on mutually accepted terms and conditions. Additionally, the difference between our backlog and remaining performance obligations is due to the portion of unexercised contract options that are excluded, under certain contract types, from our remaining performance obligations as these contracts can be canceled for convenience at any time by us or the customer without considerable cost incurred by the customer. Additional information related to our remaining performance obligations is provided in Note 16 — Remaining Performance Obligations in the accompanying notes to our condensed consolidated financial statements.3.
Given the multi-year duration of many of our contracts, revenue from backlog is expected to be earned over a period that will extend beyond one year. Our GCR backlog as of JuneSeptember 30, 2021 was $378.9$345.5 million compared to $393.5 million at December 31, 2020. In addition, ODR backlog as of JuneSeptember 30, 2021 was $60.6$69.4 million compared to $50.9 million at December 31, 2020. Of the total backlog at JuneSeptember 30, 2021, we expect to recognize approximately $211.0$117.9 million by the end of 2021.
COVID-19 Update
As discussed in Note 1, in March 2020, the World Health Organization declared COVID-19 a global pandemic. The COVID-19 pandemic has caused significant disruption and volatility on a global scale resulting in, among other things, an economic slowdown, impacts to global supply chains, and the possibility of a continued economic recession. In limited instances, during fiscal 2020, the Company faced disruptions due to the COVID-19 pandemic as certain projects chose to shutdown work irrespective of the existence or applicability of government action. In most markets, construction is considered an essential business and the Company continued to staff its projects and perform work during fiscal 2020 and into 2021, and most of the projects that were in progress at the time shutdowns commenced were restarted.
As new variants of the virus emerge, we remain cautious as many factors remain unpredictable. We actively monitor and respond to the changing conditions created by the pandemic, with focus on prioritizing the health and safety of our employees, dedicating resources to support our communities, and innovating to address our customers’ needs.
Supply chain disruptions, material shortages and escalating commodity prices as a result of COVID-19 are expected to continue during the fourth quarter of 2021 and into 2022. To date, the Company has been able to source the supplies and materials needed to operate its business with only modest disruptions. However, the impact of the COVID-19 pandemic on our vendors and the pricing and availability of materials or supplies utilized in our operations continues to evolve and may have an adverse impact on our operations in future periods. The Company continues to monitor the short- and long-term impacts of the pandemic, including the current supply chain disruptions.
As vaccines have become more readily available, we have experienced a growing number of our clients requiring that our workforce present on the client's property be vaccinated against the virus. Additionally, on September 9, 2021, President Biden issued an executive order that resulted in guidance for all employers with certain U.S. Government contracts to ensure that their U.S.-based employees, contractors, and subcontractors, that work on or in support of U.S. Government contracts, are fully vaccinated by January 4, 2022. The executive order includes on-site and remote U.S.-based employees, contractors and subcontractors and it only permits limited exceptions for disability/medical and religious reasons. In addition, on September 9, 2021, President Biden announced that he has directed the Occupational Safety and Health Administration (“OSHA”) to develop an Emergency Temporary Standard (“ETS”) mandating either the full vaccination or weekly testing of employees for employers with 100 or more employees. On November 4, 2021, OSHA filed an ETS with the Office of the Federal Register that requires covered employers to ensure all unvaccinated employees working in-person to begin wearing masks by December 5, 2021, and provide a negative COVID-19 test on a weekly basis beginning on January 4, 2022. See Item 1A. Risk Factors in this Form 10-Q for discussion of risks associated with the potential adverse effects on our workforce of the U.S. Government vaccine mandate for employees, contractors, and subcontractors that service federal contracts and the OSHA requirement on our workforce. Additionally, see Item 1A. Risk Factors in the Company's Annual Report on Form 10-K for the year ended December 31, 2020 for discussion of risks associated with the COVID-19 pandemic.
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Seasonality, Cyclicality and Quarterly Trends
Severe weather can impact our operations. In the northern climates where we operate, and to a lesser extent the southern climates as well, severe winters can slow our productivity on construction projects, which shifts revenue and gross profit recognition to a later period. Our maintenance operations may also be impacted by mild or severe weather. Mild weather tends to reduce demand for our maintenance services, whereas severe weather may increase the demand for our maintenance and spot services. Our operations also experience mild cyclicality, as building owners typically work through maintenance and capital projects at an increased level during the third and fourth calendar quarters of each year.
Effect of Inflation and Tariffs
The prices of products such as steel, pipe, copper and equipment from manufacturers are subject to fluctuation and increases. It is difficult to accurately measure the impact of inflation, tariffs and price escalation due to the imprecise nature of the estimates required. However, these effects are, at times, material to our results of operations and financial condition. During the first half of 2021, we have experienced higher cost of materials on specific projects and delays in our supply chain for equipment and service vehicles from the manufacturers, and we expect these higher costs and delays in our supply chain to persist through the remainder of 2021. When appropriate, we include cost escalation factors into our bids and proposals, as well as limit the acceptance time of our bid. In addition, we are often able to mitigate the impact of future price increases by entering into fixed price purchase orders for materials and equipment and subcontracts on our projects. Notwithstanding these efforts, if we experience significant disruptions to our supply chain, we may need to delay certain projects that would otherwise be accretive to our business and this may also impact the conversion rate of our current backlog into revenue.
Liquidity and Capital Resources
Cash Flows
Our liquidity needs relate primarily to the provision of working capital (defined as current assets less current liabilities) to support operations, funding of capital expenditures, and investment in strategic opportunities. Historically, liquidity has been provided by operating activities and borrowings from commercial banks and institutional lenders.
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The following table presents summary cash flow information for the periods indicated:
Six months ended June 30, Nine months ended September 30,
2021202020212020
(in thousands)(in thousands)(in thousands)
Net cash (used in) provided by:Net cash (used in) provided by:  Net cash (used in) provided by:  
Operating activitiesOperating activities$(24,609)$22,457 Operating activities$(16,781)$35,229 
Investing activitiesInvesting activities(140)(597)Investing activities(268)(1,054)
Financing activitiesFinancing activities10,295 (1,375)Financing activities8,204 (2,919)
Net (decrease) increase in cash, cash equivalents and restricted cashNet (decrease) increase in cash, cash equivalents and restricted cash$(14,454)$20,485 Net (decrease) increase in cash, cash equivalents and restricted cash$(8,845)$31,256 
Noncash investing and financing transactions:Noncash investing and financing transactions:Noncash investing and financing transactions:
Right of use assets obtained in exchange for new operating lease liabilities Right of use assets obtained in exchange for new operating lease liabilities$156 $—  Right of use assets obtained in exchange for new operating lease liabilities$156 $924 
Right of use assets obtained in exchange for new finance lease liabilities Right of use assets obtained in exchange for new finance lease liabilities336 1,050  Right of use assets obtained in exchange for new finance lease liabilities846 2,399 
Right of use assets disposed or adjusted modifying operating lease liabilities Right of use assets disposed or adjusted modifying operating lease liabilities36 586  Right of use assets disposed or adjusted modifying operating lease liabilities47 586 
Right of use assets disposed or adjusted modifying finance lease liabilities Right of use assets disposed or adjusted modifying finance lease liabilities— (64) Right of use assets disposed or adjusted modifying finance lease liabilities— (64)
Interest paidInterest paid1,741 3,250 Interest paid2,138 4,817 
Cash paid for income taxes$2,096 $734 
Cash paid (received) for income taxesCash paid (received) for income taxes$2,096 $(629)
OurThe Company's cash flows are primarily impacted from period to period by fluctuations in working capital. Factors such as our contract mix, commercial terms, days sales outstanding (“DSO”) and delays in the start of projects may impact our working capital. In line with industry practice, we accumulate costs during a given month then bill those costs in the current month for many of our contracts. While labor costs associated with these contracts are paid weekly and salary costs associated with the contracts are paid bi-weekly, certain subcontractor costs are generally not paid until we receive payment from our customers (contractual “pay-if-paid” terms). We have not historically experienced a large volume of write-offs related to our receivables and contract assets. We regularly assess our receivables for collectability and provide allowances for doubtful accounts where appropriate. We believe that our reserves for doubtful accounts are appropriate as of JuneSeptember 30, 2021 and December 31,
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2020, but adverse changes in the economic environment may impact certain of our customers’ ability to access capital and compensate us for our services, as well as impact project activity for the foreseeable future.
The Company's existing current backlog is projected to provide substantial coverage of forecasted GCR revenue for one year from the date of the financial statement issuance. Our current cash balance, together with cash we expect to generate from future operations along with borrowings available under ourthe Wintrust Loans, are expected to be sufficient to finance our short- and long-term capital requirements (or meet working capital requirements) for the next twelve months. In addition to the future operating cash flows of the Company, along with its existing borrowing availability and access to financial markets, the Company believes it will be able to meet any working capital and future operating requirements, and capital investment forecast opportunities for the next twelve months.
The following table represents our summarized working capital information:
(in thousands, except ratios)(in thousands, except ratios)June 30, 2021December 31, 2020(in thousands, except ratios)September 30, 2021December 31, 2020
Current assetsCurrent assets$199,726 $199,417 Current assets$209,683 $199,417 
Current liabilitiesCurrent liabilities(137,924)(150,294)Current liabilities(143,084)(150,294)
Net working capitalNet working capital$61,802 $49,123 Net working capital$66,599 $49,123 
Current ratio*1.45 1.33 
Current ratio (1)
Current ratio (1)
1.47 1.33 
*(1)    Current ratio is calculated by dividing current assets by current liabilities.
As discussed above and in Note 75 to the accompanying condensed consolidated financial statements, as of JuneSeptember 30, 2021, the Company was in compliance with all financial maintenance covenants as required by the Wintrust Loans.
Cash Flows (Used in) Provided by Operating Activities
The following is a summary of the significant sources (uses) of cash from operating activities:

 Nine months ended September 30,
(in thousands)
20212020Cash Inflow (outflow)
Cash flows from operating activities:  
Net income$2,436 $5,420 $(2,984)
Non-cash operating activities (1)
12,277 11,594 683 
Changes in operating assets and liabilities:
   Accounts receivable(12,678)(19,834)7,156 
   Contract assets(5,095)8,612 (13,707)
   Other current assets(1,243)270 (1,513)
   Accounts payable, including retainage4,131 2,695 1,436 
   Prepaid income taxes(217)(192)(25)
   Accrued taxes payable(1,426)1,947 (3,373)
   Contract liabilities(9,645)18,715 (28,360)
   Operating lease liabilities(3,036)(3,229)193 
   Accrued expenses and other current liabilities(2,173)8,925 (11,098)
   Other long-term liabilities(112)306 (418)
Cash (used in) provided by working capital(31,494)18,215 (49,709)
Net cash (used in) provided by operating activities$(16,781)$35,229 $(52,010)
(1)Represents non-cash activity associated with depreciation and amortization, provision for doubtful accounts, stock-based compensation expense, operating lease expense, amortization of debt issuance costs, deferred income tax provision, gain on sale of property and equipment, loss on early debt extinguishment and changes in the fair value of warrant liabilities.
During the nine months ended September 30, 2021, the Company used $16.8 million in cash in its operating activities, which consisted of cash used in working capital of $31.5 million, offset by net income for the period of $2.4 million and non-cash adjustments of $12.3 million (primarily depreciation and amortization, stock-based compensation expense, operating lease
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Cash Flows (Used in) Provided by Operating Activities
Cash flows used in operating activities were $24.6 million forexpense and gain on loss on early extinguishment of debt). During the sixnine months ended June 30, 2021 compared to cash flows provided by operating activities of $22.5 million for the six months ended June 30, 2020. For the six months ended June 30, 2021, cash used in operating activities were negatively impacted by an $8.9 million increase in accounts receivable, a $7.5 million decrease in contract liabilities, a $5.5 million decrease in accrued expenses and other current liabilities, and a $3.7 million increase in contract assets.
Cash flows provided by operating activities were $22.5 million for the six months ended June 30, 2020. For the six months ended JuneSeptember 30, 2020, the key components includedCompany provided $35.2 million from its operating activities, which consisted of net income of $5.4 million, non-cash adjustments of $11.6 million (primarily depreciation and amortization, stock-based compensation expense, operating lease expense, amortization of debt issuance costs and a gain on the change in fair value of warrant liabilities) and cash inflowsprovided by working capital of $3.6 million related to our accounts receivable, $4.9 million related to our contract assets, $16.3 million for our contract liabilities shifting from an underbilled to an overbilled position consistent with our renewed focus on project cash flows and $9.4 million related to accrued expenses and other current liabilities. These cash inflows were offset by outflows of $19.5 million related to our accounts payable, including retainage.$18.2 million.
The decrease in operating cash flows during the sixnine months ended JuneSeptember 30, 2021 compared to the sixnine months ended JuneSeptember 30, 2020 were mostlyprimarily attributable to the reduction of our net overbilling position,contract assets and liabilities, which resulted in a $32.3$42.1 million cash outflow period-over-period, and a $12.5$11.1 million period-over-period cash outflow related to the change in accounts receivable.accrued expenses and other current liabilities. The decrease in our overbilled position was due to the reduction in GCR revenue and the timing of contract billings and the recognition of contract revenue. In addition, the reduction in accounts receivableaccrued expense and other current liabilities was due to the timing of billings and collections.
Non-cash charges for depreciation and amortization were $3.0 million for the six months ended June 30, 2021 and $3.1 million for the six months ended June 30, 2020.payments.
Cash Flows Used in Investing Activities
Cash flows used in investing activities were $0.1$0.3 million and $0.6$1.1 million for the sixnine months ended JuneSeptember 30, 2021 and 2020, respectively. For the sixnine months ended JuneSeptember 30, 2021, $0.5$0.7 million was used to purchase property and equipment, offset by $0.4 million in proceeds from the sale of property and equipment. For the sixnine months ended JuneSeptember 30, 2020, $0.7$1.1 million was used to purchase property and equipment, offset by $0.1 million in proceeds from the sale of property and equipment.
The majority of our cash used for investing activities in both periods was for capital additions pertaining to tools and equipment, computer software and hardware purchases, office furniture and office related leasehold improvements.
Cash Flows Provided by (Used in) Financing Activities
Cash flows provided by financing activities were $10.3$8.2 million for the sixnine months ended JuneSeptember 30, 2021 compared to cash flows used in financing activities of $1.4$2.9 million for the sixnine months ended JuneSeptember 30, 2020. For the sixnine months ended JuneSeptember 30, 2021, we received proceeds from the following: $22.8 million, net of fees and expenses, in conjunction with our common stock offering in February 2021, $2.0 million from the exercise of warrants, and $30.0 million in connection with the refinancing of2021 Refinancing and $0.3 million associated with proceeds from contributions to the 2019 Refinancing Term Loan with the Wintrust Loans.ESPP. These proceeds were partly offset by the $39.0 million payment in full of the 2019 Refinancing Term Loan and associated $1.4 million prepayment penalty and other extinguishment costs, $2.0$3.5 million of scheduled principal payments on the Wintrust Term Loan, $1.3$2.0 million for payments on finance leases, $0.4 million in taxes related to net share settlement of equity awards and $0.6 million for payments related to debt issuance costs related to the Wintrust Term Loan and Wintrust Revolving Loan.
For the sixnine months ended JuneSeptember 30, 2020, we borrowed and repaid $7.3 million on the 2019 Revolving Credit Facility, made a $1.0 million principal payment on the 2019 Refinancing Term Loan and made capitalfinance lease payments of $1.3$2.0 million. The Company also received $0.1 million in proceeds from contributions related to the Employee Stock Purchase Plan and paid $0.1 million in taxes related to net share settlement of equity awards.
Debt and Other Obligations
TheAs a result of the 2021 Refinancing, the Company refinancedprepaid all principal, interest, fees and other obligations outstanding under the 2019 Refinancing Agreements and terminated its 2019 Refinancing Term Loan and ABL2019 Refinancing Revolving Credit AgreementsFacility. In addition, on February 24,the 2021 described below and therefore had no amounts outstanding under these agreements at June 30, 2021. Accordingly,Refinancing Date, the Company recognized a loss on the early debt extinguishment of debt of $2.0 million. This lossmillion, which consisted of the write-off of $2.6 million of debt issuanceunamortized discount and debt discountfinancing costs, reversedthe reversal of the $2.0 million of the CB warrant liability due to the warrants being cancelled on the refinancing date and paid a prepayment penalty of $1.4 million.

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2019 Refinancing Agreement
On April 12, 2019 (the “Refinancing Closing Date”), Limbach Facility Services LLC (“LFS”) entered into a financing agreement (the “2019 Refinancing Agreement”) with the lenders thereto and Cortland Capital Market Services LLC, as collateral agent and administrative agent and CB Agent Services LLC, as origination agent (“CB”). The 2019 Refinancing Agreement consisted of (i) a $40.0 million term loan (the “2019 Refinancing Term Loan”) and (ii) a new $25.0 million multi-draw delayed draw term loan (the “2019 Delayed Draw Term Loan” and, collectively with the 2019 Refinancing Term Loan, the “2019 Term Loans”). Proceeds from the 2019 Refinancing Term Loan were used to repay the then existing Credit Agreement, to pay related fees and expenses thereof and to fund working capital of the 2019 Refinancing Borrowers (defined below). Management intended for proceeds of the 2019 Delayed Draw Term Loan to be used to fund permitted acquisitions under the 2019 Refinancing Agreement and related fees and expenses in connection therewith.
LFS and each of its subsidiaries were borrowers (the “2019 Refinancing Borrowers”) under the 2019 Refinancing Agreement. In addition, the 2019 Refinancing Agreement was guaranteed by the Company and LHLLC (each, a “2019 Refinancing Guarantor”, and together with the 2019 Refinancing Borrowers, the “Loan Parties”).
The 2019 Refinancing Agreement was secured by a first-priority lien on the real property of the Loan Parties and a second-priority lien on substantially all other assets of the Loan Parties, behind the 2019 ABL Credit Agreement (as defined below). The respective lien priorities of the 2019 Refinancing Agreement and the 2019 ABL Credit Agreement were governed by an intercreditor agreement.
2019 Refinancing Agreement - Interest Rates and Fees
The interest rate on borrowings under the 2019 Refinancing Agreement was, at the 2019 Refinancing Borrowers’ option, either LIBOR (with a 2.00% floor) plus 11.00% or a base rate (with a 3.00% minimum) plus 10.00%. At February 24, 2021 (the 2021 refinancing date) and June 30, 2020, the interest rate in effect on the 2019 Refinancing Term Loan was 13.00%.
2019 Refinancing Agreement - Other Terms and Conditions
The 2019 Refinancing Agreement was set to mature on April 12, 2022, subject to certain adjustment. Required amortization was $1.0 million per quarter and commenced with the fiscal quarter ending September 30, 2020. There was an unused line fee of 2.0% per annum on the undrawn portion of the 2019 Delayed Draw Term Loan, and there was a make-whole premium on prepayments made prior to the 19-month anniversary of the Refinancing Closing Date. This make-whole provision guaranteed that the Company would pay no less than 18 months’ applicable interest to the lenders under the 2019 Refinancing Agreement.

The 2019 Refinancing Agreement contained representations and warranties, and covenants which were customary for debt facilities of this type. Unless the Required Lenders (as defined in the 2019 Refinancing Agreement) otherwise consented in writing, the covenants limited the ability of the Company and its restricted subsidiaries to, among other things, (i) incur additional indebtedness or issue preferred stock, (ii) pay dividends or make distributions to the Company’s stockholders, (iii) purchase or redeem the Company’s equity interests, (iv) make investments, (v) create liens on their assets, (vi) enter into transactions with the Company’s affiliates, (vii) sell assets and (viii) merge or consolidate with, or dispose of substantially all of the Company’s assets to, other companies.
In addition, the 2019 Refinancing Agreement included customary events of default and other provisions that could require all amounts due thereunder to become immediately due and payable, either automatically or at the option of the lenders, if the Company failed to comply with the terms of the 2019 Refinancing Agreement or if other customary events occur.
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Furthermore, the 2019 Refinancing Agreement also contained two financial maintenance covenants for the 2019 Refinancing Term Loan, including a requirement to have sufficient collateral coverage of the aggregate outstanding principal amount of the 2019 Term Loans and as of the last day of each month for the total leverage ratio of the Company and its subsidiaries (the “Total Leverage Ratio”) not to exceed an amount beginning at 4.25 to 1.00 through June 30, 2019, and stepping down to 2.00 to 1.00 effective July 1, 2021. From July 1, 2019 through September 30, 2019, the Total Leverage Ratio may not exceed 4.00 to 1.00. In addition, the parties to the 2019 Refinancing Agreement entered into an amendment which, among other changes, revised the maximum permitted Total Leverage Ratio, starting at 3.30 to 1.00 on October 1, 2019 with a peak ratio of 4.25 during March 2020 along with varying monthly rates culminating in the lowest Total Leverage Ratio of 2.00 to 1.00 on April 1, 2021 through the term of such agreement. The 2019 Refinancing Agreement contained a post-closing covenant requiring the remediation of the Company’s material weakness, as described in Item 9A of its 2018 Annual Report on Form 10-K, no later than December 31, 2020 and provision for updates as to the progress of such remediation, provided that, if such remediation was not completed on or prior to December 31, 2019, (x) the Company would be required to pay the post-closing fee pursuant to the terms of the Origination Agent Fee Letter (as defined in the 2019 Refinancing Agreement) and (y) the applicable margin shall be increased by 1.00% per annum for the period from January 1, 2020 until the date at which the material weakness was no longer disclosed or required to be disclosed in the Company’s SEC filings or audited financial statements of the Company or related auditor’s reports.

In connection with the 2019 Refinancing Amendment Number One and Waiver, dated November 14, 2019, the parties amended certain provisions of the 2019 Refinancing Agreement, including, among other changes to: (i) require, commencing October 1, 2019, a 3.00% increase in the interest rate on borrowings under the 2019 Refinancing Agreement; (ii) require the approval of CB and, generally, the lenders representing at least 50.1% of the aggregate undrawn term loan commitment or unpaid principal amount of the 2019 Term Loans, prior to effecting any permitted acquisition; (iii) revise the maximum permitted Total Leverage Ratio, starting at 3.30 to 1.00 on October 1, 2019 with a peak ratio of 4.25 during March 2020 along with varying monthly rates culminating in the lowest Total Leverage Ratio of 2.00 to 1.00 on April 1, 2021 and thereafter through the term of the 2019 Refinancing Agreement; and (iv) require the liquidity of the loan parties, which is generally calculated by adding (a) unrestricted cash on hand of the Loan Parties maintained in deposit accounts subject to control agreements granting control to the collateral agent for the 2019 ABL Credit Agreement, to (b) the difference between (1) the lesser of (x) $15 million, as adjusted from time to time, and (y) 75% of certain customer accounts resulting from the sale of goods or services in the ordinary course of business minus certain reserves established by the administrative agent and (2) the sum of (x) the outstanding principal balance of all revolving loans under the 2019 ABL Credit Agreement plus (y) the aggregate undrawn available amount of all letters of credit then outstanding plus the amount of any obligations that arise from any draw against any letter of credit that have not been reimbursed by the borrowers or funded with a revolving loan under the 2019 ABL Credit Agreement (the “Loan Parties Liquidity”), as of the last day of any fiscal month ending on or after November 30, 2019, of at least $10,000,000. As a condition to executing the 2019 Refinancing Amendment Number One and Waiver, the loan parties were required to pay a non-refundable waiver fee of $400,000 and a non-refundable amendment fee of $1,000,000 (the “PIK First Amendment Fee”, which shall be paid in kind by adding the PIK First Amendment Fee to the outstanding principal amount of the 2019 Refinancing Term Loan as additional principal obligations thereunder on and as of the effective date 2019 Refinancing Amendment Number One and Waiver).

During December 2020, the Company was not in compliance with the collateral coverage debt covenant as defined by the 2019 Term Loan financing agreement. The Company was required to maintain at all times a Collateral Coverage Amount (as defined in the 2019 Refinancing Term Loan financing agreement) equal to or greater than the aggregate outstanding principal amount of the 2019 Term Loans. The Company calculated its Collateral Coverage amount at $37.9 million as of December 31, 2020, the aggregate outstanding principal amount of Term Loans was $39.0 million as of that same date for an excess of debt over collateral of $1.1 million. On February 1, 2021, the Company, LFS and LHLLC entered into a Waiver - Collateral Coverage Amount (December 2020) ("December 2020 Waiver") with the lenders party thereto and Cortland Capital Market Services LLC as collateral agent and administrative agent. The December 2020 Waiver included a waiver of the Company's compliance with the Collateral Coverage Amount for the month ending December 31, 2020. The lender waived the event of default arising from this noncompliance as of December 31, 2020, while reserving its rights with respect to covenant compliance in future months.

The 2019 Refinancing Term Loan was paid in full on February 24, 2021 as part of the refinancing transaction.


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2019 Refinancing Agreement - CB Warrants
In connection with the 2019 Refinancing Agreement, on the Refinancing Closing Date, the Company issued to CB and the other lenders under the 2019 Refinancing Agreement warrants (the “CB Warrants”) to purchase up to a maximum of 263,314 shares of the Company's common stock at an exercise price of $7.63 per share subject to certain adjustments, including for stock dividends, stock splits or reclassifications. The actual number of shares of common stock into which the CB Warrants were exercisable at any given time were equal to: (i) the product of (x) the number of shares equal to 2% of the Company’s issued and outstanding shares of common stock on the Refinancing Closing Date on a fully diluted basis and (y) the percentage of the total 2019 Delayed Draw Term Loan made as of the exercise date, minus (ii) the number of shares previously issued under the CB Warrants. As of the Refinancing Closing Date through February 24, 2021, no amounts had been drawn on the 2019 Delayed Draw Term Loan, so no portion of the CB Warrants were exercisable. The CB Warrants were to be exercised for cash or on a “cashless basis,” subject to certain adjustments, at any time after the 2019 Refinancing Closing Date until the expiration of such warrant at 5:00 p.m., New York time, on the earlier of (i) the five (5) year anniversary of the 2019 Refinancing Closing Date, or (ii) the liquidation of the Company. 
Accounting for the 2019 Term Loans and CB Warrants
The CB Warrants represented a freestanding financial instrument that was classified as a liability because the CB Warrants met the definition of a derivative instrument that does not meet the equity scope exception (i.e., the CB Warrants were not indexed to the entity’s own equity). In addition, the material weakness penalty described above was evaluated as an embedded derivative liability and bifurcated from the 2019 Term Loans as it represented a non-credit related embedded feature that provides for net settlement. Both the CB Warrants liability and the embedded derivative liability were required to be initially and subsequently measured at fair value. The initial fair values of the CB Warrants liability and the embedded derivative liability approximated $0.9 million and $0.4 million, respectively, on the Refinancing Closing Date. The Company estimated these fair values by using the Black-Scholes-Merton option pricing model and a probability-weighted discounted cash flow approach.

The CB Warrants liability was included in other long-term liabilities. The Company remeasured the fair value of the CB Warrants liability as of December 31, 2020 and February 24, 2021 prior to the refinancing date and recorded any adjustments as other income (expense). At both February 24, 2021 and December 31, 2020, the CB Warrants liability was $2.0 million. Due to the extinguishment of the CB Warrants on February 24, 2021, there was no liability associated with the CB Warrants recorded as of June 30, 2021. For the six months ended June 30, 2021, the Company recorded other income of $0.1 million to reflect the change in the fair value of the CB Warrants liability. The Company did not record a change in fair value of the warrant liability during the three months ended June 30, 2021 as the CB Warrants liability was extinguished as part of the debt refinancing on February 24, 2021. For the three and six months ended June 30, 2020, the Company recorded other income of $0.1 millionprepayment penalty and other expenseextinguishment costs of $0.1 million to reflect the change in the CB Warrants liability.
The proceeds for the 2019 Refinancing Term Loan were first allocated to the CB Warrants liability and embedded derivative liability based on their respective fair values with a corresponding amount of $1.3 million recorded as a debt discount to the 2019 Term Loans. In addition, the Company incurred approximately $3.9 million of debt issuance costs, including $1.4 million related to the first amendment, for the 2019 Term Loans that have also been recorded as a debt discount. The combined debt discount from the CB Warrants liability, embedded derivative liability and the debt issuance costs were being amortized into interest expense over the term of the 2019 Term Loans using the effective interest method and were expensed on the refinancing date as a loss on early debt extinguishment. The Company recorded interest expense for the amortization of the CB Warrants liability and embedded derivative debt discounts of $0.1 million for the six months ended June 30, 2021. The Company did not record interest expense for the amortization of the CB Warrants liability and embedded derivative liability debt discounts for the three months ended June 30, 2021 as these debt discounts were extinguished as part of the debt refinancing on February 24, 2021. The Company recorded interest expense for the amortization of the CB Warrants liability and embedded derivative debt discounts of $0.1 million and $0.2 million for the three and six months ended June 30, 2020, respectively.

In addition to the amortization of the debt discounts into interest expense, the Company recorded $0.1 million of interest expense for the amortization of debt issuance costs related to the 2019 Refinancing Term Loan for the six months ended June 30, 2021. The Company did not record any interest expense for the amortization of debt issuance costs for the three months ended June 30, 2021 as the debt issuance costs were extinguished as part of the debt refinancing on February 24, 2021. For the three and six months ended June 30, 2020, the Company recorded an additional $0.4 million and $0.7 million of interest expense, respectively, for the amortization of the debt issuance costs related to the 2019 Refinancing Term Loan.

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2019 ABL Credit Agreement
On the Refinancing Closing Date, LFS also entered into a financing agreement with the lenders thereto and Citizens Bank, N.A., as collateral agent, administrative agent and origination agent (the “2019 ABL Credit Agreement” and, together with the 2019 Refinancing Agreement, the “Refinancing Agreements”). The 2019 ABL Credit Agreement consisted of a $15.0 million revolving credit facility (the “2019 Revolving Credit Facility”). Proceeds of the 2019 Revolving Credit Facility were to be used for general corporate purposes. On the Refinancing Closing Date, the Company had nothing drawn on the ABL Credit Agreement and $14.0 million of available borrowing capacity thereunder (net of a $1.0 million reserve imposed by the lender).
The 2019 Refinancing Borrowers and 2019 Refinancing Guarantors under the 2019 ABL Credit Agreement were the same as under the 2019 Refinancing Agreement. The 2019 ABL Credit Agreement was secured by a second-priority lien on the real property of the Loan Parties (behind the 2019 Refinancing Agreement) and a first-priority lien on substantially all other assets of the Loan Parties.
2019 ABL Credit Agreement - Interest Rates and Fees
The interest rate on borrowings under the 2019 ABL Credit Agreement was, at the 2019 Refinancing Borrowers’ option, either LIBOR (with a 2.0% floor) plus an applicable margin ranging from 3.00% to 3.50% or a base rate (with a 3.0% minimum) plus an applicable margin ranging from 2.00% to 2.50%. At February 24, 2021 (the 2021 refinancing date) and June 30, 2020, the interest rate in effect on the 2019 ABL Credit Agreement was 5.25%.
2019 ABL Credit Agreement - Other Terms and Conditions
The 2019 ABL Credit Agreement was set to mature on April 12, 2022. There was also an unused line fee ranging from 0.250% to 0.375% per annum on undrawn amounts.
The 2019 ABL Credit Agreement contained representations and warranties, and covenants which are customary for debt facilities of this type. Unless the Required Lenders otherwise consented in writing, the covenants limited the ability of the Company and its restricted subsidiaries to, among other things, generally, to (i) incur additional indebtedness or issue preferred stock, (ii) pay dividends or make distributions to the Company’s stockholders, (iii) purchase or redeem the Company’s equity interests, (iv) make investments, (v) create liens on their assets, (vi) enter into transactions with the Company’s affiliates, (vii) sell assets other than in the ordinary course of business or another permitted disposition of assets and (viii) merge or consolidate with, or dispose of substantially all of the Company’s assets to, other companies.

The 2019 ABL Credit Agreement included customary events of default and other provisions that could require all amounts due thereunder to become immediately due and payable, either automatically or at the option of the lenders, if the Company failed to comply with the terms of the 2019 ABL Credit Agreement or if other customary events occur.
The 2019 ABL Credit Agreement also contained a financial maintenance covenant for the 2019 Revolving Credit Facility, which is a requirement for the Total Leverage Ratio of the Company and its subsidiaries not to exceed an amount beginning at 4.00 to 1.00 through September 30, 2019, and stepping down to 1.75 to 1.00 effective July 1, 2021. In addition, the parties to the 2019 ABL Credit Agreement entered into an amendment which, among other changes revises the maximum permitted Total Leverage Ratio, starting at 3.30 to 1.00 on October 1, 2019 with a peak ratio of 4.25 during March 2020 along with varying monthly rates culminating in the lowest Total Leverage Ratio of 2.00 to 1.00 on April 1, 2021 through the term of such agreement.
In connection with the 2019 ABL Credit Amendment Number One and Waiver, the parties amended certain provisions of the 2019 ABL Credit Agreement, including, among other changes to (i) require the approval of the origination agent and, generally, the lenders representing at least 50.1% of the aggregate undrawn revolving loan commitment or unpaid principal amount of the 2019 Term Loans, prior to effecting any permitted acquisition; (ii) revise the maximum permitted Total Leverage Ratio, starting at 3.30 to 1.00 on October 1, 2019 with a peak ratio of 4.25 during March 2020 along with varying monthly rates culminating in the lowest Total Leverage Ratio of 2.00 to 1.00 on April 1, 2021 through the term of the 2019 ABL Credit Agreement; and (iii) require the Loan Parties Liquidity as of the last day of any fiscal month ending on or after November 30, 2019, of at least $10,000,000, as described above in the Amendment Number One to 2019 Refinancing Agreement and Waiver. As a condition to executing the 2019 ABL Credit Amendment Number One and Waiver, the loan parties were required to pay a non-refundable waiver fee of $7,500.

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As noted above in the section titled: 2019 Refinancing Agreement - Other Terms and Conditions, the Company was subject to cross-default under our 2019 Revolving Credit Facility as a result of our failure to satisfy the Collateral Coverage Amount as defined in the 2019 Term Loan financing agreement, which required the company to obtain a waiver. Accordingly, on February 1, 2021, the Company, LFS and LHLLC entered into a Waiver - Collateral Coverage Amount (December 2020) (“December 2020 Waiver”) with the lenders party thereto and Citizens Bank, N.A., as collateral agent and administrative agent. The December 2020 Waiver included a waiver of the Company's compliance with the Collateral Coverage Amount for the month ending December 31, 2020. The lender has waived the event of default arising from this noncompliance as of December 31, 2020, while reserving its rights with respect to covenant compliance in future months.

At February 24, 2021 (the 2021 refinancing date) and December 31, 2020, the Company had irrevocable letters of credit in the amount of $3.4 million with its lender to secure obligations under its self-insurance program.

Accounting for the 2019 ABL Credit Agreement
The Company incurred approximately $0.9 million of debt issuance costs for the 2019 ABL Credit Agreement that had been recorded as a non-current deferred asset. The deferred asset was amortized into interest expense over the term of the 2019 Term ABL Credit Agreement using the effective interest method and then expensed on the February 24, 2021 refinancing date as a loss on early debt extinguishment. The Company recorded $0.1 million of interest expense for the amortization of debt issuance costs for the six months ended June 30, 2021. The Company did not record any interest expense for the amortization of debt issuance costs for the three months ended June 30, 2021 as the debt issuance costs were extinguished as part of the debt refinancing on February 24, 2021. For both the three and six months ended June 30, 2020, the Company recorded $0.1 million of interest expense for the amortization of debt issuance costs.

Wintrust Term and Revolving Loans

On February 24, 2021, LFS, LHLLC and the direct and indirect subsidiaries of LFS from time to time included as parties to the agreement (the “Wintrust Guarantors”) entered into a Credit Agreement (the “Credit Agreement”) by and among the LFS, LHLLC, Wintrust Guarantors, the lenders party thereto from time to time, Wheaton Bank & Trust Company, N.A., a subsidiary of Wintrust Financial Corporation (collectively, “Wintrust”), as administrative agent and L/C issuer, Bank of the West as documentation agent, M&T Bank as syndication agent, and Wintrust as lead arranger and sole book runner.

In accordance with the terms of the Credit Agreement, Lenders provide to LFS (i) a $30.0 million senior secured term loan (the “Wintrust Term Loan”); and (ii) a $25.0 million senior secured revolving credit facility with a $5.0 million sublimit for the issuance of letters of credit (the “Wintrust Revolving Loan” and, together with the Wintrust Term Loan, the “Wintrust Loans”). Proceeds of the Wintrust Loans were used to refinance certain existing indebtedness, finance working capital and other general corporate purposes and fund certain fees and expenses associated with the closing of the Wintrust Loans.

The Wintrust Revolving Loan bears interest, at the LFS’s option, at either LIBOR (with a 0.25% floor) plus 3.5% or a base rate (with a 3.0% floor) plus 0.50%, subject to a 50 basis point step-down based on the ratio between the senior debt of the Company and its subsidiaries to the EBITDA (earnings before interest, income taxes, depreciation and amortization) of the LFS and its subsidiaries for the most recently ended four fiscal quarters (the “Senior Leverage Ratio”). The Wintrust Term Loan bears interest, at LFS’s option, at either LIBOR (with a 0.25% floor) plus 4.0% or a base rate (with a 3.0% floor) plus 1.00%, subject to a 50 (for LIBOR) or 75 (for base rate) basis point step-down based on the Senior Leverage Ratio.

LFS is required to make principal payments on the Wintrust Term Loan in $0.5 million installments on the last business day of each month commencing on March 31, 2021 with a final payment of all principal and interest not sooner paid on the Wintrust Term Loan due and payable on February 24, 2026. The Wintrust Revolving Loan will mature and become due and payable by LFS on February 24, 2026.

The Wintrust Loans are secured by (i) a valid, perfected and enforceable lien of the administrative agent on the ownership interests held by each of LFS and Wintrust Guarantors in their respective subsidiaries; and (ii) a valid, perfected and enforceable lien of the administrative agent on each of LFS and Wintrust Guarantors’ personal property, fixtures and real estate, subject to certain exceptions and limitations. Additionally, the re-payment of the Wintrust Loans shall be jointly and severally guaranteed by each Wintrust Guarantor.

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The Credit Agreement contains representations and warranties, covenants and events of default that are customary for facilities of this type, as more particularly described in the Credit Agreement. The Wintrust Loans also contain three financial maintenance covenants, including (i) a requirement to have as of the last day of each quarter for the senior leverage ratio of the Company and its subsidiaries not to exceed an amount beginning at 2.25 to 1.00 through December 31, 2021, and stepping down to 2.00 to 1.00 at all times thereafter, (ii) a fixed charge coverage ratio of not less than 1.20 to 1.00 as of the last day of each fiscal quarter commencing with the fiscal quarter ending March 31, 2021, and (iii) no unfinanced capital expenditures, except for unfinanced capital expenditures in the ordinary course of business not exceeding in the aggregate $4.0 million during any fiscal year; and no default or event of default (as defined by the agreement) has occurred and is continuing, 50% of any portion of this annual limit, if not expended in the fiscal year for which it is permitted, may be carried over for expenditure in the next following fiscal year as stipulated by the agreement. LFS and its affiliates maintain various commercial and service relationships with certain members of the syndicate and their affiliates in the ordinary course of business. As of June 30, 2021, the Company was in compliance with all financial maintenance covenants as required by the Wintrust Loans.

The following is a summary of the additional margin and commitment fees payable on the available Wintrust Term Loan and Wintrust Revolving Loan credit commitment:
LevelSenior Leverage RatioAdditional Margin for
Prime Rate loans
Additional Margin for
Prime Revolving loans
Additional Margin for Eurodollar Term loansAdditional Margin for Eurodollar Revolving loansCommitment Fee
IGreater than 1.00 to 1.001.00 %0.50 %4.00 %3.50 %0.25 %
IILess than or equal to 1.00 to 1.000.25 %— %3.50 %3.00 %0.25 %
At June 30, 2021, the interest rate in effect on the Wintrust Term Loan was 4.25% and the interest rate in effect on the Wintrust Revolving Loan was 3.75%.

At June 30, 2021, the Company had irrevocable letters of credit in the amount of $3.4 million with its lender to secure obligations under its self-insurance program.

million.
The following table reflects our available funding capacity as of JuneSeptember 30, 2021:
(in thousands)  
Cash & cash equivalents $27,69333,302 
Credit agreement:  
Wintrust Revolving credit facilityLoan$25,000  
Outstanding revolving credit facilityborrowings on the Wintrust Revolving Loan—  
Outstanding letters of credit(3,405) 
Net credit agreement capacity available 21,595 
Total available funding capacity $49,28854,897 
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See Note 5 for further discussion of the 2019 Refinancing Term loan (prior to its termination), the 2019 Revolving Credit Facility (prior to its termination), the Wintrust Term Loan and the Wintrust Revolving Loan.
Cash Flow Summary
Management continues to devote additional resources to its billing and collection efforts during the sixnine months ended JuneSeptember 30, 2021. Management continues to expect that growth in its ODR business, which is less sensitive to the cash flow issues presented by large GCR projects, will positively impact our cash flow trends.
Provided that the Company’s lenders continue to provide working capital funding, we believe based on the Company's current reforecast that our current cash and cash equivalents of $27.7$33.3 million as of JuneSeptember 30, 2021, cash payments to be received from existing and new customers, and availability of borrowing under the revolving line of credit under our Wintrust LoansRevolving Loan (pursuant to which we had $21.6 million of availability as of JuneSeptember 30, 2021) will be sufficient to meet our working capital and capital expenditure requirements for at least the next 12 months. See Note 1 - Organization and Plan of Business Operations.

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Surety Bonding
In connection with our business, we are occasionally required to provide various types of surety bonds that provide an additional measure of security to our customers for our performance under certain government and private sector contracts. Our ability to obtain surety bonds depends upon our capitalization, working capital, past performance, management expertise and external factors, including the capacity of the overall surety market. Surety companies consider such factors in light of the amount of our backlog that we have currently bonded and their current underwriting standards, which may change from time-to-time. The bonds we provide typically reflect the contract value. As of JuneSeptember 30, 2021 and December 31, 2020, the Company had approximately $265.3$230.7 million and $79.4 million in surety bonds outstanding, respectively. We believe that our $700.0 million bonding capacity provides us with a significant competitive advantage relative to many of our competitors which have limited bonding capacity. See Note 12 for further discussion.

Insurance and Self-Insurance
We purchase workers’ compensation and general liability insurance under policies with per-incident deductibles of $250,000 per occurrence. Losses incurred over primary policy limits are covered by umbrella and excess policies up to specified limits with multiple excess insurers. We accrue for the unfunded portion of costs for both reported claims and claims incurred but not reported. The liability for unfunded reported claims and future claims is reflected on the Condensed Consolidated Balance Sheets as current and non-current liabilities. The liability is computed by determining a reserve for each reported claim on a case-by-case basis based on the nature of the claim and historical loss experience for similar claims plus an allowance for the cost of incurred but not reported claims. The current portion of the liability is included in accrued expenses and other current liabilities on the Condensed Consolidated Balance Sheets. The non-current portion of the liability is included in other long-term liabilities on the Condensed Consolidated Balance Sheets.
We are self-insured related to medical and dental claims under policies with annual per-claimant and annual aggregate stop-loss limits. We accrue for the unfunded portion of costs for both reported claims and claims incurred but not reported. The liability for unfunded reported claims and future claims is reflected on the Condensed Consolidated Balance Sheets as a current liability in accrued expenses and other current liabilities.
The components of the self-insurance liability are reflected below as of June 30, 2021 and December 31, 2020:
(in thousands)June 30, 2021December 31, 2020
Current liability – workers’ compensation and general liability$105 $197 
Current liability – medical and dental511 764 
Non-current liability776 890 
Total liability$1,392 $1,851 
Restricted cash$113 $113 
The restricted cash balance represents cash set aside See Note 12 for the funding of workers’ compensation and general liability insurance claims. This amount is replenished when depleted, or at the beginning of each month.further discussion.
Multiemployer Pension Plans
We participate in approximately 40 multiemployer pension plans (“MEPPs”) that provide retirement benefits to certain union employees in accordance with various collective bargaining agreements (“CBAs”). As one of many participating employers in these MEPPs, we are responsible with the other participating employers for any plan underfunding. Our contributions to a particular MEPP are established by the applicable CBAs; however, required contributions may increase based on the funded status of an MEPP and legal requirements of the Pension Protection Act of 2006 (the “PPA”), which requires substantially underfunded MEPPs to implement a funding improvement plan (“FIP”) or a rehabilitation plan (“RP”) to improve their funded status. Factors that could impact funded status of an MEPP include, without limitation, investment performance, changes in the participant demographics, decline in the number of contributing employers, changes in actuarial assumptions and the utilization of extended amortization provisions. Assets contributed to the MEPPs by us may be used to provide benefits to employees of other participating employers. If a participating employer stops contributing to an MEPP, the unfunded obligations of the MEPP may be borne by the remaining participating employers.
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An FIP or RP requires a particular MEPP to adopt measures to correct its underfunding status. These measures may include, but are not limited to an increase in a company’s contribution rate as a signatory to the applicable CBA, or changes to the benefits paid to retirees. In addition, the PPA requires that a 5.0% surcharge be levied on employer contributions for the first year commencing shortly after the date the employer receives notice that the MEPP is in critical status and a 10.0% surcharge on each succeeding year until a CBA is in place with terms and conditions consistent with the RP.
We could also be obligated to make payments to MEPPs if we either cease to have an obligation to contribute to the MEPP or significantly reduce our contributions to the MEPP because we reduce the number of employees who are covered by the relevant MEPP for various reasons, including, but not limited to, layoffs or closure of a subsidiary assuming the MEPP has unfunded vested benefits. The amount of such payments (known as a complete or partial withdrawal liability) would equal our proportionate share of the MEPPs’ unfunded vested benefits. We believe that certain of the MEPPs in which we participate may have unfunded vested benefits. Due to uncertainty regarding future factors that could trigger withdrawal liability, we are unable to determine (a) the amount and timing of any future withdrawal liability, if any, and (b) whether our participation in these MEPPs could have a material adverse impact on our financial condition, results of operations or liquidity.
Item 3. Quantitative and Qualitative Disclosures About Market Risk
We are a smaller reporting company as defined in Rule 12b-2 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”); therefore, pursuant to Item 301(c) of Regulation S-K, we are not required to provide the information required by this Item.
Item 4. Controls and Procedures
Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures
Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures, as defined in Rule 13a-15(e) under the Exchange Act. Based on that evaluation as of JuneSeptember 30, 2021, our Chief Executive Officer and Chief Financial Officer concluded that our Company’s disclosure controls and procedures were effective.
Changes in Internal Control over Financial Reporting
There were no changes in our internal control over financial reporting identified in connection with the evaluation required by Rule 13a-15(d) and 15d-15(d) of the Exchange Act that occurred during the period covered by this Quarterly Report on Form 10-Q that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.
Inherent Limitations on Effectiveness of Controls
In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, cannot provide absolute assurance of achieving the desired control objectives. Our management recognizes that any control system, no matter how well designed and operated, is based upon certain judgments and assumptions and cannot provide absolute assurance that its objectives will be met. Similarly, an evaluation of controls cannot provide absolute assurance that misstatements due to error or fraud will not occur or that all control issues and instances of fraud, if any, have been detected.
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Part II
Item 1. Legal Proceedings
See Note 15 Commitments and Contingencies12 for further information regarding legal proceedings.
Item 1A. Risk Factors

ThereExcept as set forth below, there have been no material changes to ourfrom the risk factors previously disclosed in Part I, Item 1A of our 2020the Company's Annual Report on Form 10-K.10-K for the year ended December 31, 2020.
COVID-19 vaccination mandates applicable to us and certain of our employees may result in our inability to pursue certain work, an increase in attrition rates or absenteeism within our labor force, challenges securing future labor needs, inefficiencies connected to employee turnover, and costs associated with implementation and on-going compliance, which could have an adverse impact on our business and results of operations.
On September 9, 2021, President Biden issued an executive order that resulted in guidance for all employers with U.S. Government contracts to ensure that their U.S.-based employees, contractors, and subcontractors, that work on, or in support of, U.S. Government contracts, are fully vaccinated by January 4, 2021. The executive order includes on-site and remote U.S.-based employees, contractors and subcontractors and it only permits limited exceptions for disability/medical and religious reasons.
In addition, on September 9, 2021, President Biden announced that he has directed OSHA to develop an Emergency Temporary Standard (“ETS”) mandating either the full vaccination or weekly testing of employees of employers with 100 or more employees. On November 4, 2021, OSHA filed an ETS with the Office of the Federal Register that will require employers with 100 or more employees to require their employees to be fully vaccinated with a COVID-19 vaccine or to produce a negative COVID-19 test result on at least a weekly basis, along with certain other requirements. The ETS requires covered employers to ensure all unvaccinated employees working in-person to begin wearing masks by December 5, 2021, and provide a negative COVID-19 test on a weekly basis beginning on January 4, 2022.
It is currently not possible to predict with certainty the exact impact that President Biden’s executive order, the OSHA ETS or other vaccine mandates will have on our business or workforce. However, the implementation of these requirements may result in our inability to pursue certain work, an increase in attrition rates or absenteeism within our labor force, challenges securing future labor needs, inefficiencies connected to employee turnover, and costs associated with implementation and on-going compliance, which could have an adverse effect on our business, financial condition, and results of operations.
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
None.
Item 3. Defaults Upon Senior Securities
None.
Item 4. Mine Safety Disclosures
Not applicable.
Item 5. Other Information
None.
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Item 6. Exhibits
Exhibit Description
 
 
 
 
101.INS XBRL Instance Document.
101.SCH XBRL Taxonomy Extension Schema Document.
101.CAL XBRL Taxonomy Extension Calculation Linkbase Document.
101.LAB XBRL Taxonomy Extension Label Linkbase Document.
101.PRE XBRL Taxonomy Extension Presentation Linkbase Document.
101.DEF XBRL Taxonomy Extension Definition Document.

*Filed herewith.
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SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
LIMBACH HOLDINGS, INC.
/s/ Charles A. Bacon, III
Charles A. Bacon, III
Chief Executive Officer
(Principal Executive Officer)
 
/s/ Jayme L. Brooks
Jayme L. Brooks
Chief Financial Officer
(Principal Financial and Accounting Officer)
Date: August 12,November 10, 2021
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