MYR (MYRG) 10-Q 1 Aug 18 2018 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 27, 2018
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Entity Registrant Name	MYR GROUP INC.
Entity Central Index Key	700,923
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Trading Symbol	MYRG
Entity Common Stock, Shares Outstanding		16,565,604

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 4,203	$ 5,343
Accounts receivable, net of allowances of $568 and $605, respectively	280,018	283,008
Costs and estimated earnings in excess of billings on uncompleted contracts	87,356	78,260
Current portion of receivable for insurance claims in excess of deductibles	4,380	4,221
Refundable income taxes, net	0	391
Other current assets	7,565	8,513
Total current assets	383,522	379,736
Property and equipment, net of accumulated depreciation of $242,985 and $231,391, respectively	155,571	148,084
Goodwill	46,984	46,994
Intangible assets, net of accumulated amortization of $5,423 and $5,183, respectively	10,592	10,852
Receivable for insurance claims in excess of deductibles	14,466	14,295
Investment in joint ventures	908	168
Other assets	3,551	3,659
Total assets	615,594	603,788
Current liabilities:
Current portion of capital lease obligations	1,102	1,086
Accounts payable	98,804	110,383
Billings in excess of costs and estimated earnings on uncompleted contracts	48,407	28,919
Current portion of accrued self-insurance	13,016	13,138
Income taxes payable, net	1,857	0
Other current liabilities	43,536	35,038
Total current liabilities	206,722	188,564
Deferred income tax liabilities	13,818	13,452
Long-term debt	57,804	78,960
Accrued self-insurance	32,093	32,225
Capital lease obligations, net of current maturities	2,068	2,629
Other liabilities	464	919
Total liabilities	312,969	316,749
Commitments and contingencies
Stockholders' equity:
Preferred stock—$0.01 par value per share; 4,000,000 authorized shares; none issued and outstanding at June 30, 2018 and December 31, 2017	0	0
Common stock—$0.01 par value per share; 100,000,000 authorized shares; 16,565,333 and 16,464,757 shares issued and outstanding at June 30, 2018 and December 31, 2017, respectively	165	163
Additional paid-in capital	146,610	143,934
Accumulated other comprehensive loss	(300)	(299)
Retained earnings	156,150	143,241
Total stockholders' equity	302,625	287,039
Total liabilities and stockholders' equity	$ 615,594	$ 603,788

CONSOLIDATED BALANCE SHEETS _Pa

CONSOLIDATED BALANCE SHEETS [Parenthetical] - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Allowance for Doubtful Accounts Receivable, Current	$ 568	$ 605
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	242,985	231,391
Finite-Lived Intangible Assets, Accumulated Amortization	$ 5,423	$ 5,183
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	4,000,000	4,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	100,000,000	100,000,000
Common Stock, Shares, Issued	16,565,333	16,464,757
Common Stock, Shares, Outstanding	16,565,333	16,464,757

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Contract revenues	$ 339,676	$ 356,185	$ 685,287	$ 656,314
Contract costs	301,046	328,668	610,904	603,057
Gross profit	38,630	27,517	74,383	53,257
Selling, general and administrative expenses	29,168	25,024	57,448	50,803
Amortization of intangible assets	119	210	236	398
Gain on sale of property and equipment	(1,014)	(1,319)	(2,065)	(2,026)
Income from operations	10,357	3,602	18,764	4,082
Other income (expense)
Interest income	0	3	0	4
Interest expense	(783)	(594)	(1,504)	(1,108)
Other, net	25	751	274	1,625
Income before provision for income taxes	9,599	3,762	17,534	4,603
Income tax expense	2,764	2,532	5,055	2,173
Net income	$ 6,835	$ 1,230	$ 12,479	$ 2,430
Income per common share:
- Basic (in dollars per share)	$ 0.42	$ 0.08	$ 0.76	$ 0.15
- Diluted (in dollars per share)	$ 0.41	$ 0.07	$ 0.75	$ 0.15
Weighted average number of common shares and potential common shares outstanding:
- Basic (in shares)	16,455	16,312	16,388	16,237
- Diluted (in shares)	16,592	16,503	16,555	16,476
Net income	$ 6,835	$ 1,230	$ 12,479	$ 2,430
Other comprehensive income (loss):
Foreign currency translation adjustment	16	59	(1)	10
Other comprehensive income (loss)	16	59	(1)	10
Total comprehensive income	$ 6,851	$ 1,289	$ 12,478	$ 2,440

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income	$ 12,479	$ 2,430
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation and amortization of property and equipment	18,590	19,055
Amortization of intangible assets	236	398
Stock-based compensation expense	1,478	2,560
Deferred income taxes	323	(209)
Gain on sale of property and equipment	(2,065)	(2,026)
Other non-cash items	354	(289)
Changes in operating assets and liabilities
Accounts receivable, net	1,950	13,346
Costs and estimated earnings in excess of billings on uncompleted contracts	(9,350)	(22,707)
Receivable for insurance claims in excess of deductibles	(330)	(99)
Other assets	2,144	(626)
Accounts payable	(9,845)	15,357
Billings in excess of costs and estimated earnings on uncompleted contracts	19,564	(445)
Accrued self insurance	(239)	2,745
Other liabilities	9,977	(10,310)
Net cash flows provided by operating activities	45,266	19,180
Cash flows from investing activities:
Proceeds from sale of property and equipment	2,426	2,466
Purchases of property and equipment	(28,019)	(20,598)
Net cash flows used in investing activities	(25,593)	(18,132)
Cash flows from financing activities:
Net repayments under revolving lines of credit	(21,156)	(14,193)
Payment of principal obligations under capital leases	(545)	(516)
Proceeds from exercise of stock options	1,887	1,134
Repurchase of common shares	(951)	(2,208)
Other financing activities	10	28
Net cash flows used in financing activities	(20,755)	(15,755)
Effect of exchange rate changes on cash	(58)	887
Net decrease in cash and cash equivalents	(1,140)	(13,820)
Cash and cash equivalents:
Beginning of period	5,343	23,846
End of period	$ 4,203	$ 10,026

Organization, Business and Basi

Organization, Business and Basis of Presentation	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]	1. Organization, Business and Basis of Presentation Organization and Business MYR Group Inc. (the “Company”) is a holding company of specialty electrical construction service providers and conducts operations through its wholly owned subsidiaries, including: The L. E. Myers Co., a Delaware corporation; Harlan Electric Company, a Michigan corporation; Great Southwestern Construction, Inc., a Colorado corporation; Sturgeon Electric Company, Inc., a Michigan corporation; MYR Transmission Services, Inc., a Delaware corporation; E.S. Boulos Company, a Delaware corporation; High Country Line Construction, Inc., a Nevada corporation; Sturgeon Electric California, LLC, a Delaware limited liability company; GSW Integrated Services, LLC, a Delaware limited liability company; MYR Transmission Services Canada, Ltd., a British Columbia corporation; Northern Transmission Services, Ltd., a British Columbia corporation and Western Pacific Enterprises Ltd., a British Columbia corporation. The Company performs construction services in two business segments: Transmission and Distribution (“T&D”) and Commercial and Industrial (“C&I”). T&D customers include investor-owned utilities, cooperatives, private developers, government-funded utilities, independent power producers, independent transmission companies, industrial facility owners and other contractors. T&D provides a broad range of services, which include design, engineering, procurement, construction, upgrade, maintenance and repair services, with a particular focus on construction, maintenance and repair. The C&I customers include general contractors, commercial and industrial facility owners, local governments and developers in the western and northeastern United States and western Canada. The C&I segment provides services such as the design, installation, maintenance and repair of commercial and industrial wiring, installation of traffic networks and the installation of bridge, roadway and tunnel lighting. Basis of Presentation Interim Consolidated Financial Information The accompanying unaudited consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial reporting and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures, normally included in annual financial statements prepared in accordance with U.S. GAAP, have been condensed or omitted pursuant to the rules and regulations of the SEC. The Company believes that the disclosures made are adequate to make the information presented not misleading. In the opinion of management, all adjustments, consisting only of normal recurring adjustments, necessary to fairly state the financial position, results of operations, comprehensive income and cash flows with respect to the interim consolidated financial statements, have been included. Certain reclassifications were made to prior year amounts to conform to the current year presentation. The consolidated balance sheet as of December 31, 2017 has been derived from the audited financial statements as of that date. The results of operations and comprehensive income are not necessarily indicative of the results for the full year or the results for any future periods. These financial statements should be read in conjunction with the audited financial statements and related notes for the year ended December 31, 2017, included in the Company’s Annual Report on Form 10-K, which was filed with the SEC on March 7, 2018. Foreign Currency The functional currency for the Company’s Canadian operations is the Canadian dollar. Assets and liabilities denominated in Canadian dollars are translated into U.S. dollars at the end-of-period exchange rate. Revenues and expenses are translated using average exchange rates for the periods reported. Equity accounts are translated at historical rates. Cumulative translation adjustments are included as a separate component of accumulated other comprehensive income in shareholders’ equity. Foreign currency transaction gains and losses, arising primarily from changes in exchange rates on short-term monetary assets and liabilities, and ineffective long-term monetary assets and liabilities are recorded in the “other income, net” line on the consolidated statements of operations. Foreign currency losses were not significant for the six months ended June 30, 2018. The Company recorded $0.1 million of foreign currency loss for the six months ended June 30, 2017. Effective foreign currency transaction gains and losses, arising primarily from long-term monetary assets and liabilities, are recorded in the foreign currency translation adjustment line on the consolidated statements of comprehensive income. Accounts Receivable The Company does not charge interest to its customers and carries its customer receivables at their face amounts, less an allowance for doubtful accounts. Included in accounts receivable are balances billed to customers pursuant to retainage provisions in certain contracts that are due upon completion of the contract and acceptance by the customer, or earlier as provided by the contract. Based on the Company’s experience in recent years, the majority of customer balances at each balance sheet date are collected within twelve months. As is common practice in the industry, the Company classifies all accounts receivable, including retainage, as current assets. The contracting cycle for certain long-term contracts may extend beyond one year, and accordingly, collection of retainage on those contracts may extend beyond one year. The Company expects a majority of the retainage recorded at June 30, 2018 to be collected within one year. Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and revenues and expenses during the period reported. Actual results could differ from those estimates. The most significant estimates are related to estimates of costs to complete on contracts, pending change orders and claims, shared savings, insurance reserves, income tax reserves, estimates surrounding stock-based compensation, the recoverability of goodwill and intangibles and accounts receivable reserves. In the six months ended June 30, 2018 and June 30, 2017, the Company recognized revenues of $6.7 million and $5.2 million, respectively, related to significant change orders and/or claims that had been included as contract price adjustments on certain contracts which n the process of being negotiated in the normal course of business. The percentage of completion method of accounting requires the Company to make estimates about the expected revenue and gross profit on each of its contracts in process. During the three months ended June 30, 2018, changes in estimates pertaining to certain projects increased consolidated gross margin by 0.1%, which resulted in increases in operating income of $0.2 million, net income of $0.2 million and diluted earnings per common share of $0.01. During the six months ended June 30, 2018, changes in estimates pertaining to certain projects increased consolidated gross margin by 0.1%, which resulted in increases in operating income of $0.1 million, net income of $0.1 million and no impact to diluted earnings per common share. During the three months ended June 30, 2017, changes in estimates pertaining to certain projects decreased consolidated gross margin by 2.1%, which resulted in decreases in operating income of $7.4 million, net income of $4.4 million and diluted earnings per common share of $0.27. During the six months ended June 30, 2017, changes in estimates pertaining to certain projects decreased consolidated gross margin by 1.0%, which resulted in decreases in operating income of $6.8 million, net income of $4.1 million and diluted earnings per common share of $0.25. Recent Accounting Pronouncements Changes to U.S. GAAP are typically established by the Financial Accounting Standards Board (“FASB”) in the form of accounting standards updates (“ASUs”) to the FASB’s Accounting Standards Codification (“ASC”). The Company considers the applicability and impact of all ASUs. The Company, based on its assessment, determined that any recently issued or proposed ASUs not listed below are either not applicable to the Company or adoption will have minimal impact on our consolidated financial statements Recently Adopted Accounting Pronouncements In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) Revenue from Contracts with Customers (Topic 606) Revenue Recognition Topic 605 In January 2017, the FASB issued ASU No. 2017-01 , Business Combinations (Topic 805): Clarifying the Definition of a Business In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230) Classification of Certain Cash Receipts and Cash Payments Recently Issued Accounting Pronouncements In January 2017, the FASB issued ASU No. 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) The Company continues to evaluate the impact that this pronouncement, and all amendments relating to this pronouncement, will have on its policies and procedures pertaining to its existing and future lease arrangements, disclosure requirements and on the Company’s financial statements. The Company expects that most existing operating lease commitments that extend beyond twelve months at the time of adoption will be recognized as lease liabilities and right-of-use assets upon adoption. While the Company is still evaluating the requirements of this update, it currently does not expect the adoption to have a material impact on the recognition, measurement or presentation of lease expenses within the Consolidated Statements of Operations and Comprehensive Income or Consolidated Statements of Cash Flows. See Note 8–Lease Obligations to the Financial Statements for further information related to the Company’s future minimum lease payments and the timing of those payments.

Revenue Recognition

Revenue Recognition	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Text Block]	2. Revenue Recognition Adoption and Accounting Policy On January 1, 2018, the Company adopted ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) Revenue Recognition Topic 605, Under Topic 606, the Company recognizes revenue to depict the transfer of goods or services to customers in an amount that reflects the consideration the Company expects to be entitled to in exchange for goods or services provided. Revenue associated with contracts with customers is recognized over time as the Company’s performance creates or enhances customer controlled assets or creates or enhances an asset with no alternative use, which the Company has an enforceable right to receive compensation as defined under the contract for performance completed. To determine the amount of revenue to recognize over time, the Company estimates profit by determining the difference between total estimated revenue and total estimated cost of a contract. The profit and corresponding revenue is recognized over the contract term based on costs incurred under the cost-to-cost method. For purposes of recognizing revenue, the Company follows the five step approach outlined in ASC 606-10-25. As the cost-to-cost method is driven by incurred cost, the Company calculates the percentage of completion by dividing costs incurred-to-date by the total estimated cost. The percentage of completion is then multiplied by estimated revenues to determine inception-to-date revenue. Revenue recognized for the period is the current inception-to-date recognized revenue less the prior period inception-to-date recognized revenue. If a contract is projected to result in a loss, the entire contract loss is recognized in the period when the loss was first determined and the amount of the loss is updated in subsequent reporting periods. Revenue recognition also includes an amount related to a contract asset or contract liability. If the recognized revenue is greater than the amount billed to the customer, a contract asset is recorded in costs and estimated earnings in excess of billings on uncompleted contracts. Conversely, if the amount billed to the customer is greater than the recognized revenue, a contract liability is recorded in billings in excess of costs and estimated earnings on uncompleted contracts. Contract costs incurred-to-date and expected total contract costs are continuously monitored during the term of the contract. Changes in the job performance, job conditions and final contract settlements are factors that influence management’s assessment of total contract value and the total estimated costs to complete those contracts, and therefore, profit and revenue recognition. Some of the Company’s contracts may have contract terms that include variable consideration such as safety or performance bonuses or liquidated damages. In accordance with ASC 606-10-32, the Company estimates the variable consideration using one of two methods. In contracts in which there is a binary outcome, the most likely amount method is used. In instances in which there is a range of possible outcomes, the expected value method is used. In accordance with ASC 606-10-32-11, the Company includes the estimated amount of variable consideration in the transaction price only to the extent that it is probable that a significant reversal in the amount of cumulative recognized revenue will not result when the final outcome of the variable consideration is determined. In contracts in which a significant reversal may occur, the Company uses constraint in recognizing revenue on variable consideration. Although the Company often enters into contracts that contain liquidated damage clauses, the Company rarely incurs them, and as such, the Company does not include amounts associated with liquidated damage clauses until it is probable that liquidated damages will occur. These items are continually monitored by multiple levels of management throughout the reporting period. A portion of the work the Company performs requires financial assurances in the form of performance and payment bonds or letters of credit at the time of execution of the contract. Most contracts include retention provisions of up to 10%, which are generally withheld from each progress payment as retainage until the contract work has been completed and approved. Disaggregation of Revenue A majority of the Company’s revenues are earned through contracts with customers that normally provide for payment upon completion of specified work or units of work as identified in the contract. Although there is considerable variation in the terms of these contracts they are primarily structured as fixed-price contracts, under which the Company agrees to do the entire project for a fixed amount, or unit-price contracts, under which the Company agrees to do the work at a fixed price per unit of work as specified in the contract. The Company also enters into time-and-equipment and time-and-materials contracts under which the Company is paid for labor and equipment at negotiated hourly billing rates and for other expenses, including materials, as incurred. Finally, the Company sometimes enters into cost-plus contracts, where the Company is paid for costs plus a negotiated margin. On occasion, time-and-equipment, time-and-materials and cost plus contracts require the Company to include a guaranteed not-to-exceed maximum price. Historically, fixed-price and unit-price contracts have had the highest potential margins; however, they have had a greater risk in terms of profitability because cost overruns may not be recoverable. Time-and-equipment, time-and-materials and cost-plus contracts have historically had less margin upside, but generally have had a lower risk of cost overruns. The Company also provides services under master service agreements (“MSAs”) and other variable-term service agreements. MSAs normally cover maintenance, upgrade and extension services, as well as new construction. Work performed under MSAs is typically billed on a unit-price, time-and-materials or time-and-equipment basis. MSAs are typically one to three years in duration; however, most of the Company’s contracts, including MSAs, may be terminated by the customer on short notice, typically 30 to 90 days, even if the Company is not in default under the contract. Under MSAs, customers generally agree to use the Company for certain services in a specified geographic region. Most MSAs include no obligation for the contract counterparty to assign specific volumes of work to the Company and do not require the counterparty to use the Company exclusively, although in some cases the MSA contract gives the Company a right of first refusal for certain work. Additional information related to the Company’s market types is provided in Note 10–Segment Information to the Financial Statements. The components of the Company’s revenue by contract type for the three and six months ended June 30, 2018 were as follows: Three months ended June 30, 2018 T&D C&I Total (in thousands) Amount Percent Amount Percent Amount Percent Fixed price $ 77,230 39.2 % $ 90,439 63.4 % $ 167,669 49.4 % Unit Price 41,631 21.1 15,408 10.8 57,039 16.8 T&E 68,073 34.6 8,942 6.3 77,015 22.7 Other 9,991 5.1 27,962 19.5 37,953 11.1 $ 196,925 100.0 % $ 142,751 100.0 % $ 339,676 100.0 % Six months ended June 30, 2018 T&D C&I Total (in thousands) Amount Percent Amount Percent Amount Percent Fixed price $ 156,665 37.9 % $ 179,594 66.0 % $ 336,259 49.1 % Unit Price 87,307 21.1 25,058 9.2 112,365 16.4 T&E 148,418 35.9 18,399 6.8 166,817 24.3 Other 20,921 5.1 48,925 18.0 69,846 10.2 $ 413,311 100.0 % $ 271,976 100.0 % $ 685,287 100.0 % The components of the Company’s revenue by market type for the three and six months ended June 30, 2018 were as follows: Three months ended June 30, 2018 Six months ended June 30, 2018 (in thousands) Amount Percent Segment Amount Percent Segment Transmission $ 121,708 35.8 % T&D $ 256,161 37.4 % T&D Distribution 75,217 22.2 T&D 157,150 22.9 T&D Electrical Construction 142,751 42.0 C&I 271,976 39.7 C&I Total Revenue $ 339,676 100.0 % $ 685,287 100.0 % Contract Assets and Liabilities Contracts with customers usually stipulate the timing of payment, which is defined by the terms found within the various contracts under which work was performed during the period. Therefore, contract assets and liabilities are created when the timing of costs incurred on work performed does not coincide with the billing terms, which frequently include retention provisions contained in each contract. The following table provides information about receivables, contract assets and contract liabilities from contracts with customers: June 30, December 31, (in thousands) 2018 2017 Change Contract assets $ 87,356 $ 78,260 $ 9,096 Contract liabilities (48,407 ) (28,919 ) (19,488 ) Net contract assets (liabilities) $ 38,949 $ 49,341 $ (10,392 ) The difference between the opening and closing balances of the Company’s contract assets and contract liabilities primarily results from the timing of the Company’s performance and customer payment. The amounts of revenue recognized in the period that was included in the opening contract liability balances was $20.5 million and $31.1 million for the three and six months ended June 30, 2018, respectively. This revenue consists primarily of work performed on previous billings to customers. Remaining Performance Obligations On June 30, 2018, the Company had $930.6 million of remaining performance obligations. 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. The following table summarizes that amount of remaining performance obligations that the Company expects to be realized as of June 30, 2018 and the amount of the remaining performance obligations that the Company reasonably estimates will not be recognized within the next twelve months. The Company expects a vast majority of the remaining performance obligations to be recognized within twenty-four months, although the timing of the Company’s performance is not always under its control. Additionally, the difference between the remaining performance obligations and backlog is due to the exclusion of a portion of the Company’s MSAs 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”. Remaining Performance Obligations as of June 30, 2018 (In thousands) Total Amount estimated to not be T&D $ 406,376 $ 53,876 C&I 524,239 128,238 Total $ 930,615 $ 182,114

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	3. Fair Value Measurements The Company uses the three-tier hierarchy of fair value measurement, which prioritizes the inputs used in measuring fair value based upon their degree of availability in external active markets. These tiers include: Level 1 (the highest priority), defined as observable inputs, such as quoted prices in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3 (the lowest priority), defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions. As of June 30, 2018 and December 31, 2017, the Company determined that the carrying value of cash and cash equivalents approximated fair value based on Level 1 inputs. As of June 30, 2018 and December 31, 2017, the fair values of the Company’s long-term debt and capital lease obligations were based on Level 2 inputs. The Company’s long-term debt was based on variable and fixed interest rates at June 30, 2018 and December 31, 2017, for new issues with similar remaining maturities, and approximated carrying value. In addition, based on borrowing rates currently available to the Company for borrowings with similar terms, the carrying values of the Company's capital lease obligations also approximated fair value.

Contracts in Process

Contracts in Process	6 Months Ended
	Jun. 30, 2018
Contractors [Abstract]
Long-term Contracts or Programs Disclosure [Text Block]	4. Contracts in Process The net asset position for contracts in process consisted of the following: June 30, December 31, (In thousands) 2018 2017 Costs and estimated earnings on uncompleted contracts $ 2,105,022 $ 1,978,981 Less: Billings to date 2,066,073 1,929,640 $ 38,949 $ 49,341 The net asset position for contracts in process included in the accompanying consolidated balance sheets was as follows: June 30, December 31, (In thousands) 2018 2017 Costs and estimated earnings in excess of billings on uncompleted contracts $ 87,356 $ 78,260 Billings in excess of costs and estimated earnings on uncompleted contracts (48,407 ) (28,919 ) $ 38,949 $ 49,341

Debt

Debt	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	5. Debt On June 30, 2016, the Company entered into a five-year amended and restated credit agreement (the “Credit Agreement”) with a syndicate of banks led by JPMorgan Chase Bank, N.A. and Bank of America, N.A. The Credit Agreement provides for a facility of $250 million (the “Facility”) that may be used for revolving loans and letters of credit. The Facility also allows for revolving loans and letters of credit in Canadian dollars and other currencies, up to the U.S. dollar equivalent of $50 million. The Company has an expansion option to increase the commitments under the Facility or enter into incremental term loans, subject to certain conditions, by up to an additional $100 million upon receipt of additional commitments from new or existing lenders. Subject to certain exceptions, the Facility is secured by substantially all of the assets of the Company and its domestic subsidiaries and by a pledge of substantially all of the capital stock of the Company’s domestic subsidiaries and 65% of the capital stock of the direct foreign subsidiaries of the Company. Additionally, subject to certain exceptions, the Company’s domestic subsidiaries also guarantee the repayment of all amounts due under the Credit Agreement. If an event of default occurs and is continuing, on the terms and subject to the conditions set forth in the Credit Agreement, amounts outstanding under the Facility may be accelerated and may become or be declared immediately due and payable. Borrowings under the Credit Agreement are used for working capital, capital expenditures, acquisitions, stock repurchases and other general corporate purposes. Amounts borrowed under the Credit Agreement bear interest, at the Company’s option, at a rate equal to either (1) the Alternate Base Rate (as defined in the Credit Agreement), plus an applicable margin ranging from 0.00% to 1.00%; or (2) Adjusted LIBO Rate (as defined in the Credit Agreement) plus an applicable margin ranging from 1.00% to 2.00%. The applicable margin is determined based on the Company’s consolidated leverage ratio (the “Leverage Ratio”) which is defined in the Credit Agreement as Consolidated Total Indebtedness divided by Consolidated EBITDA (as defined in the Credit Agreement). Letters of credit issued under the Facility are subject to a letter of credit fee of 1.125% to 2.125% for non-performance letters of credit or 0.625% to 1.125% for performance letters of credit, based on the Company’s consolidated Leverage Ratio. The Company is subject to a commitment fee of 0.20% to 0.375%, based on the Company’s consolidated Leverage Ratio, on any unused portion of the Facility. The Credit Agreement restricts certain types of payments when the Company’s consolidated Leverage Ratio exceeds 2.25. The weighted average interest rate on borrowings outstanding for the six months ended June 30, 2018 was 2.86% per annum. Under the Credit Agreement, the Company is subject to certain financial covenants and must maintain a maximum consolidated Leverage Ratio of 3.0 and a minimum interest coverage ratio of 3.0, which is defined in the Credit Agreement as Consolidated EBITDA (as defined in the Credit Agreement) divided by interest expense (as defined in the Credit Agreement). The Credit Agreement also contains a number of covenants, including limitations on asset sales, investments, indebtedness and liens. In connection with any permitted acquisition where the total consideration exceeds $50 million, the Company may request that the maximum permitted consolidated Leverage Ratio increase from 3.0 to 3.5. Any such increase shall begin in the quarter in which such permitted acquisition is consummated and shall continue in effect for four consecutive fiscal quarters. The Company was in compliance with all of its financial covenants under the Credit Agreement as of June 30, 2018. The amount outstanding on the Facility as of June 30, 2018 and December 31, 2017, was $57.8 million and $79.0 million, respectively. As of June 30, 2018, the Company had irrevocable standby letters of credit outstanding under the Facility of approximately $20.6 million, including $17.6 million related to the Company’s payment obligation under its insurance programs and approximately $3.0 million related to contract performance obligations. As of December 31, 2017, the Company had irrevocable standby letters of credit outstanding under the Facility of approximately $20.9 million, including $17.6 million related to the Company’s payment obligation under its insurance programs and approximately $3.3 million related to contract performance obligations. The Company has remaining deferred debt issuance costs totaling $0.7 million as of June 30, 2018, related to the line of credit. As permitted under ASU No. 2015-15, debt issuance costs have been deferred and are presented as an asset within other assets, which is amortized as interest expense over the term of the line of credit.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	6. Income Taxes The U.S. federal statutory tax rate was 21% for the three and six months ended June 30, 2018 and 35% for the three and six months ended June 30, 2017. The Company’s effective tax rate for the three and six months ended June 30, 2018 was 28.8% of pretax income, compared to the effective tax rate for the three and six months ended June 30, 2017 of 67.3% and 47.2%, respectively. The difference between the U.S. federal statutory tax rate and the Company’s effective tax rate for the three and six months ended June 30, 2018 was primarily due to state income taxes and the inability to utilize losses experienced in certain Canadian operations. The difference between the U.S. federal statutory tax rate and the Company’s effective tax rate for the three months ended June 30, 2017 was primarily caused by the inability to utilize losses experienced in certain Canadian operations the inability to utilize losses experienced in certain Canadian operations, partially offset by The Company had unrecognized tax benefits of approximately $0.4 million as of June 30, 2018 and $0.8 million as of December 31, 2017, which were included in other liabilities in the accompanying consolidated balance sheets. The Company’s policy is to recognize interest and penalties related to income tax liabilities as a component of income tax expense in the consolidated statements of operations. The amount of interest and penalties charged to income tax expense because of the unrecognized tax benefits was not significant for the three and six months ended June 30, 2018 and 2017. The Company is subject to taxation in various jurisdictions. The Company’s tax returns for 2015 and 2016 are subject to examination by U.S. federal authorities. The Company’s tax returns are subject to examination by various state authorities for the years 2013 through 2016.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments Contingencies and Guarantees [Text Block]	7. Commitments and Contingencies Purchase Commitments As of June 30, 2018, the Company had approximately $7.3 million in outstanding purchase orders for certain construction equipment, with cash outlay scheduled to occur over the next three months. Insurance and Claims Accruals The Company carries insurance policies, which are subject to certain deductibles, for workers’ compensation, general liability, automobile liability and other coverages. The deductible per occurrence for each line of coverage is up to $1.0 million, except for wildfire coverage which has a deductible of $2.0 million. The Company’s health benefit plans are subject to deductibles of up to $0.2 million for qualified individuals. Losses up to the deductible amounts are accrued based upon the Company’s estimates of the ultimate liability for claims reported and an estimate of claims incurred but not yet reported. The insurance and claims accruals are based on known facts, actuarial estimates and historical trends. While recorded accruals are based on the ultimate liability, which includes amounts in excess of the deductible, a corresponding receivable for amounts in excess of the deductible is included in current and long-term assets in the consolidated balance sheets. Performance and Payment Bonds and Parent Guarantees In certain circumstances, the Company is required to provide performance and payment bonds in connection with its future performance on certain contractual commitments. The Company has indemnified its sureties for any expenses paid out under these bonds. As of June 30, 2018, an aggregate of approximately $606.1 million in original face amount of bonds issued by the Company’s sureties were outstanding. Our estimated remaining cost to complete these bonded projects was approximately $247.3 million as of June 30, 2018. From time to time the Company guarantees the obligations of wholly owned subsidiaries, including obligations under certain contracts with customers, certain lease agreements, and, in some states, obligations in connection with obtaining contractors’ licenses. Additionally, from time to time the Company is required to post letters of credit to guarantee the obligations of wholly owned subsidiaries, which reduces the borrowing availability under the Facility. Indemnities From time to time, pursuant to its service arrangements, the Company indemnifies its customers for claims related to the services it provides under those service arrangements. These indemnification obligations may subject the Company to indemnity claims and liabilities and related litigation. The Company is not aware of any material unrecorded liabilities for asserted claims in connection with these indemnification obligations. Collective Bargaining Agreements Many of the Company’s subsidiaries’ craft labor employees are covered by collective bargaining agreements. The agreements require the subsidiaries to pay specified wages, provide certain benefits and contribute certain amounts to multi-employer pension plans. If a subsidiary withdraws from any of the multi-employer pension plans or if the plans were to otherwise become underfunded, the subsidiary could incur liabilities for additional contributions related to these plans. Although the Company has been informed that the underfunding of some of the multi-employer pension plans to which its subsidiaries contribute have been classified as “critical” status, the Company is not currently aware of any potential liabilities related to this issue. Litigation and Other Legal Matters The Company is from time-to-time party to various lawsuits, claims, and other legal proceedings that arise in the ordinary course of business. These actions typically seek, among other things, compensation for alleged personal injury, breach of contract, property damages, punitive damages, civil penalties or other losses, or injunctive or declaratory relief. The Company is routinely subject to other civil claims, litigation and arbitration, and regulatory investigations arising in the ordinary course of our business, as well as in respect of our divested businesses. These claims, lawsuits and other proceedings include claims related to the Company’s current services and operations, as well as our historic operations. With respect to all such lawsuits, claims and proceedings, the Company records reserves when it is probable that a liability has been incurred and the amount of loss can be reasonably estimated. The Company does not believe that any of these proceedings, separately or in the aggregate, would be expected to have a material adverse effect on the Company’s financial position, results of operations or cash flows.

Lease Obligations

Lease Obligations	6 Months Ended
	Jun. 30, 2018
Leases [Abstract]
Leases of Lessee Disclosure [Text Block]	8. Lease Obligations From time to time, the Company enters into leasing arrangements for real estate, vehicles and construction equipment, including master leasing arrangements for vehicles and construction equipment. Some of the leases entered into under these agreements met the requirements for capitalization and were recorded as capital leases, while others were treated as operating leases. As of June 30, 2018, the Company had no outstanding commitments to enter into future leases under its master lease agreements. Capital Leases The Company leases some vehicles and certain equipment under capital leases. The economic substance of the leases is a financing transaction for acquisition of the vehicles and equipment. Accordingly, these leases are included in the balance sheets in property and equipment, net of accumulated depreciation, with a corresponding amount recorded in current portion of capital lease obligations or capital lease obligations, net of current maturities, as appropriate. The capital lease assets are amortized over the life of the lease or, if shorter, the life of the leased asset, on a straight-line basis and included in depreciation expense in the statements of operations. The interest associated with capital lease obligations is included in interest expense in the statements of operations. As of June 30, 2018, the Company had approximately $3.2 million of capital lease obligations outstanding, $1.1 million of which was classified as a current liability. As of December 31, 2017, the Company had approximately $3.7 million of capital lease obligations outstanding, $1.1 million of which was classified as a current liability. As of June 30, 2018 and December 31, 2017, $3.1 million and $3.7 million, respectively, of leased assets were capitalized in construction equipment, net of accumulated depreciation. Operating Leases The Company, from time to time, leases real estate, construction equipment and office equipment under operating leases with remaining terms ranging from one to six years. Future Minimum Lease Payments The future minimum lease payments required under capital leases and operating leases, together with the present value of capital leases, as of June 30, 2018 were as follows: Capital Operating (In thousands) Lease Lease Remainder of 2018 $ 592 $ 2,219 2019 1,185 3,413 2020 1,185 2,338 2021 355 1,680 2022 — 1,081 Thereafter — 514 Total minimum lease payments $ 3,317 $ 11,245 Interest (147 ) Net present value of minimum lease payments 3,170 Less: Current portion of capital lease obligations 1,102 Long-term capital lease obligations $ 2,068

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	9. Stock-Based Compensation The Company maintains two equity compensation plans under which stock-based compensation has been granted: the 2017 Long-Term Incentive Plan, (the “LTIP”) and the 2007 Long-Term Incentive Plan (the “2007 Plan”). Upon the adoption of the LTIP during the second quarter of 2017, awards were no longer granted under the 2007 Plan. The LTIP provides for grants of (a) incentive stock options qualified as such under U.S. federal income tax laws, (b) stock options that do not qualify as incentive stock options, (c) stock appreciation rights, (d) restricted stock awards, (e) restricted stock units, (f) performance share awards, (g) phantom stock, (h) stock bonuses, (i) dividend equivalents, and (j) any combination of such awards. The company grants time-vested stock awards in the form of restricted stock awards, restricted stock units or equity-settled phantom stock. During the six months ended June 30, 2018, the Company granted 92,244 shares of time-vested stock awards under the LTIP, which primarily vest ratably over three years, at a weighted average grant date fair value of $30.16. Additionally, 86,870 shares of time-vested stock awards vested during the six months ended June 30, 2018, at a weighted average grant date fair value of $29.40. During the six months ended June 30, 2018, the Company granted 66,764 performance share awards under the LTIP at target, which cliff vest on December 31, 2020, at a weighted average grant date fair value of $34.52. The number of shares actually earned under a performance award may vary from zero to 200% of the target shares awarded, based upon the Company’s performance compared to certain metrics. The metrics used were determined at grant by the Compensation Committee of the Board of Directors and were either based on internal measures, such as the Company’s financial performance compared to target, or on a market-based metric, such as the Company’s stock performance compared to a peer group. Performance awards cliff vest upon attainment of the stated performance targets and minimum service requirements and are paid in common shares of the Company’s stock. During the six months ended June 30, 2018, management concluded that it was probable that the minimum performance criteria would not be met for certain performance shares that were granted during 2016. As a result, during the first quarter of 2018, the Company reversed $0.4 million in stock compensation from previous accruals. During the six months ended June 30, 2018, plan participants exercised 87,557 stock options with a weighted average exercise price of $21.55. The Company recognizes stock-based compensation expense related to restricted stock awards, phantom stock awards and restricted stock units based on the grant date fair value, which was the closing price of the Company’s stock on the date of grant. The fair value is expensed over the service period. The Company recognizes stock-based compensation expense related to market-based performance awards based on the grant date fair value, which is computed using a Monte Carlo simulation. The fair value is expensed over the service period, which is approximately 2.8 years. The Company recognizes stock-based compensation expense related to internal measure-based performance awards based on the grant date fair value, which was the closing price of the Company’s stock on the date of grant. The fair value is expensed over the service period of approximately 2.8 years, and the Company adjusts the stock-based compensation expense related to internal metric-based performance awards according to its determination of the potential achievement of the performance target at each reporting date. The fair value of restricted stock units that were granted to directors during the second quarter of 2018 will be expensed over an amortization period of 1.0 year. The fair value of restricted stock units granted to directors in 2017 was expensed on the date of the grant because the award agreements contain provisions which call for the vesting of all shares awarded upon change in control or resignation from the board for any reason except breach of fiduciary duty.

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Segment Reporting Disclosure [Text Block]	10. Segment Information MYR Group is a holding company of specialty contractors serving electrical utility infrastructure and commercial construction markets in the United States and western Canada. The Company has two reporting segments, each a separate operating segment, which are referred to as T&D and C&I. Performance measurement and resource allocation for the reporting segments are based on many factors. The primary financial measures used to evaluate the segment information are contract revenues and income from operations, excluding general corporate expenses. General corporate expenses include corporate facility and staffing costs, which includes safety costs, professional fees, IT expenses, management fees, and intangible amortization. The accounting policies of the segments are the same as those described in the Summary of Significant Accounting Policies in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. Transmission and Distribution: The T&D segment provides a broad range of services on electric transmission and distribution networks and substation facilities which include design, engineering, procurement, construction, upgrade, maintenance and repair services with a particular focus on construction, maintenance and repair. T&D services include the construction and maintenance of high voltage transmission lines, substations and lower voltage underground and overhead distribution systems. The T&D segment also provides emergency restoration services in response to hurricane, ice or other storm-related damage. T&D customers include investor-owned utilities, cooperatives, private developers, government-funded utilities, independent power producers, independent transmission companies, industrial facility owners and other contractors. Commercial and Industrial: The C&I segment provides services such as the design, installation, maintenance and repair of commercial and industrial wiring, installation of traffic networks and the installation of bridge, roadway and tunnel lighting. Typical C&I contracts cover electrical contracting services for airports, hospitals, data centers, hotels, stadiums, convention centers, manufacturing plants, processing facilities, waste-water treatment facilities, mining facilities and transportation control and management systems. C&I segment services are generally performed in the western and northeastern United States and in western Canada. The C&I segment generally provides electric construction and maintenance services as a subcontractor to general contractors in the C&I industry, but also contracts directly with facility owners. The C&I segment has a diverse customer base with many long-standing relationships. The information in the following table is derived from the segment’s internal financial reports used for corporate management purposes: Three months ended Six months ended June 30, June 30, (In thousands) 2018 2017 2018 2017 Contract revenues: T&D $ 196,925 $ 239,794 $ 413,311 $ 435,528 C&I 142,751 116,391 271,976 220,786 $ 339,676 $ 356,185 $ 685,287 $ 656,314 Income from operations: T&D $ 11,018 $ 8,074 $ 24,559 $ 13,216 C&I 9,635 4,751 14,971 9,165 General Corporate (10,296 ) (9,223 ) (20,766 ) (18,299 ) $ 10,357 $ 3,602 $ 18,764 $ 4,082 For the three and six months ended June 30, 2018, contract revenues attributable to the Company’s Canadian operations were $14.5 million and $29.2 million, respectively, predominantly in the C&I segment. For the three and six months ended June 30, 2017, contract revenues attributable to the Company’s Canadian operations were $17.2 million and $36.4 million, respectively, predominantly in the C&I segment.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Earnings Per Share [Text Block]	11. Earnings Per Share The Company computes earnings per share using the treasury stock method. Under the treasury stock method, basic earnings per share are computed by dividing net income available to shareholders by the weighted average number of common shares outstanding during the period, and diluted earnings per share are computed by dividing net income available to shareholders by the weighted average number of common shares outstanding during the period plus all potentially dilutive common stock equivalents, except in cases where the effect of the common stock equivalent would be anti-dilutive. Net income available to common shareholders and the weighted average number of common shares used to compute basic and diluted earnings per share were as follows: Three months ended Six months ended June 30, June 30, (In thousands, except per share data) 2018 2017 2018 2017 Numerator: Net income $ 6,835 $ 1,230 $ 12,479 $ 2,430 Denominator: Weighted average common shares outstanding 16,455 16,312 16,388 16,237 Weighted average dilutive securities 137 191 167 239 Weighted average common shares outstanding, diluted 16,592 16,503 16,555 16,476 Income per common share, basic $ 0.42 $ 0.08 $ 0.76 $ 0.15 Income per common share, diluted $ 0.41 $ 0.07 $ 0.75 $ 0.15 For the three and six months ended June 30, 2018 and 2017, certain common stock equivalents were excluded from the calculation of dilutive securities because their inclusion would either have been anti-dilutive or, for stock options, the exercise prices of those stock options were greater than the average market price of the Company’s common stock for the period. All of the Company’s non-participating unvested restricted shares were included in the computation of weighted average dilutive securities. The following table summarizes the shares of common stock underlying the Company’s unvested stock options and performance awards that were excluded from the calculation of dilutive securities: Three months ended Six months ended June 30, June 30, (In thousands) 2018 2017 2018 2017 Restricted stock 30 44 1 44 Performance awards 68 50 86 127

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2018
Subsequent Events [Abstract]
Subsequent Events [Text Block]	12. Subsequent Events On July 2, 2018, the Company completed the acquisition of substantially all of the assets of Huen Electric, Inc., an electrical contracting firm based in Illinois, Huen Electric New Jersey Inc., an electrical contracting firm based in New Jersey, and Huen New York, Inc., an electrical contracting firm based in New York (collectively, the “Huen Companies”). The Huen Companies will provide a wide range of commercial and industrial electrical construction capabilities under the Company’s C&I segment in Illinois, New Jersey and New York. The total consideration paid was approximately $47.1 million, subject to working capital and net asset adjustments, which was funded through borrowings on the Facility. Additionally, there could also be contingent payments based on the successful achievement of certain performance targets and continued employment of certain key executives of the Huen Companies. The costs associated with these contingent payments will be recognized as compensation expense in the consolidated statements of operations and comprehensive income as earned over the period achievement becomes probable. As this transaction was effective on July 2, 2018, the results of the Huen Companies will be included in the Company’s consolidated financial statements beginning on such date. The Company expects the profits to be material to 2018 operating results. Approximately $0.2 million of acquisition-related costs associated with this acquisition were expensed by the Company in the six months ended June 30, 2018.

Organization, Business and Ba18

Organization, Business and Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Business [Policy Text Block]	Organization and Business MYR Group Inc. (the “Company”) is a holding company of specialty electrical construction service providers and conducts operations through its wholly owned subsidiaries, including: The L. E. Myers Co., a Delaware corporation; Harlan Electric Company, a Michigan corporation; Great Southwestern Construction, Inc., a Colorado corporation; Sturgeon Electric Company, Inc., a Michigan corporation; MYR Transmission Services, Inc., a Delaware corporation; E.S. Boulos Company, a Delaware corporation; High Country Line Construction, Inc., a Nevada corporation; Sturgeon Electric California, LLC, a Delaware limited liability company; GSW Integrated Services, LLC, a Delaware limited liability company; MYR Transmission Services Canada, Ltd., a British Columbia corporation; Northern Transmission Services, Ltd., a British Columbia corporation and Western Pacific Enterprises Ltd., a British Columbia corporation. The Company performs construction services in two business segments: Transmission and Distribution (“T&D”) and Commercial and Industrial (“C&I”). T&D customers include investor-owned utilities, cooperatives, private developers, government-funded utilities, independent power producers, independent transmission companies, industrial facility owners and other contractors. T&D provides a broad range of services, which include design, engineering, procurement, construction, upgrade, maintenance and repair services, with a particular focus on construction, maintenance and repair. The C&I customers include general contractors, commercial and industrial facility owners, local governments and developers in the western and northeastern United States and western Canada. The C&I segment provides services such as the design, installation, maintenance and repair of commercial and industrial wiring, installation of traffic networks and the installation of bridge, roadway and tunnel lighting.
Consolidation, Policy [Policy Text Block]	Interim Consolidated Financial Information The accompanying unaudited consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial reporting and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures, normally included in annual financial statements prepared in accordance with U.S. GAAP, have been condensed or omitted pursuant to the rules and regulations of the SEC. The Company believes that the disclosures made are adequate to make the information presented not misleading. In the opinion of management, all adjustments, consisting only of normal recurring adjustments, necessary to fairly state the financial position, results of operations, comprehensive income and cash flows with respect to the interim consolidated financial statements, have been included. Certain reclassifications were made to prior year amounts to conform to the current year presentation. The consolidated balance sheet as of December 31, 2017 has been derived from the audited financial statements as of that date. The results of operations and comprehensive income are not necessarily indicative of the results for the full year or the results for any future periods. These financial statements should be read in conjunction with the audited financial statements and related notes for the year ended December 31, 2017, included in the Company’s Annual Report on Form 10-K, which was filed with the SEC on March 7, 2018.
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign Currency The functional currency for the Company’s Canadian operations is the Canadian dollar. Assets and liabilities denominated in Canadian dollars are translated into U.S. dollars at the end-of-period exchange rate. Revenues and expenses are translated using average exchange rates for the periods reported. Equity accounts are translated at historical rates. Cumulative translation adjustments are included as a separate component of accumulated other comprehensive income in shareholders’ equity. Foreign currency transaction gains and losses, arising primarily from changes in exchange rates on short-term monetary assets and liabilities, and ineffective long-term monetary assets and liabilities are recorded in the “other income, net” line on the consolidated statements of operations. Foreign currency losses were not significant for the six months ended June 30, 2018. The Company recorded $0.1 million of foreign currency loss for the six months ended June 30, 2017. Effective foreign currency transaction gains and losses, arising primarily from long-term monetary assets and liabilities, are recorded in the foreign currency translation adjustment line on the consolidated statements of comprehensive income.
Trade and Other Accounts Receivable, Policy [Policy Text Block]	Accounts Receivable The Company does not charge interest to its customers and carries its customer receivables at their face amounts, less an allowance for doubtful accounts. Included in accounts receivable are balances billed to customers pursuant to retainage provisions in certain contracts that are due upon completion of the contract and acceptance by the customer, or earlier as provided by the contract. Based on the Company’s experience in recent years, the majority of customer balances at each balance sheet date are collected within twelve months. As is common practice in the industry, the Company classifies all accounts receivable, including retainage, as current assets. The contracting cycle for certain long-term contracts may extend beyond one year, and accordingly, collection of retainage on those contracts may extend beyond one year. The Company expects a majority of the retainage recorded at June 30, 2018 to be collected within one year.
Use of Estimates, Policy [Policy Text Block]	Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and revenues and expenses during the period reported. Actual results could differ from those estimates. The most significant estimates are related to estimates of costs to complete on contracts, pending change orders and claims, shared savings, insurance reserves, income tax reserves, estimates surrounding stock-based compensation, the recoverability of goodwill and intangibles and accounts receivable reserves. In the six months ended June 30, 2018 and June 30, 2017, the Company recognized revenues of $6.7 million and $5.2 million, respectively, related to significant change orders and/or claims that had been included as contract price adjustments on certain contracts which n the process of being negotiated in the normal course of business. The percentage of completion method of accounting requires the Company to make estimates about the expected revenue and gross profit on each of its contracts in process. During the three months ended June 30, 2018, changes in estimates pertaining to certain projects increased consolidated gross margin by 0.1%, which resulted in increases in operating income of $0.2 million, net income of $0.2 million and diluted earnings per common share of $0.01. During the six months ended June 30, 2018, changes in estimates pertaining to certain projects increased consolidated gross margin by 0.1%, which resulted in increases in operating income of $0.1 million, net income of $0.1 million and no impact to diluted earnings per common share. During the three months ended June 30, 2017, changes in estimates pertaining to certain projects decreased consolidated gross margin by 2.1%, which resulted in decreases in operating income of $7.4 million, net income of $4.4 million and diluted earnings per common share of $0.27. During the six months ended June 30, 2017, changes in estimates pertaining to certain projects decreased consolidated gross margin by 1.0%, which resulted in decreases in operating income of $6.8 million, net income of $4.1 million and diluted earnings per common share of $0.25.
New Accounting Pronouncements, Policy [Policy Text Block]	Recent Accounting Pronouncements Changes to U.S. GAAP are typically established by the Financial Accounting Standards Board (“FASB”) in the form of accounting standards updates (“ASUs”) to the FASB’s Accounting Standards Codification (“ASC”). The Company considers the applicability and impact of all ASUs. The Company, based on its assessment, determined that any recently issued or proposed ASUs not listed below are either not applicable to the Company or adoption will have minimal impact on our consolidated financial statements Recently Adopted Accounting Pronouncements In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) Revenue from Contracts with Customers (Topic 606) Revenue Recognition Topic 605 In January 2017, the FASB issued ASU No. 2017-01 , Business Combinations (Topic 805): Clarifying the Definition of a Business In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230) Classification of Certain Cash Receipts and Cash Payments Recently Issued Accounting Pronouncements In January 2017, the FASB issued ASU No. 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) The Company continues to evaluate the impact that this pronouncement, and all amendments relating to this pronouncement, will have on its policies and procedures pertaining to its existing and future lease arrangements, disclosure requirements and on the Company’s financial statements. The Company expects that most existing operating lease commitments that extend beyond twelve months at the time of adoption will be recognized as lease liabilities and right-of-use assets upon adoption. While the Company is still evaluating the requirements of this update, it currently does not expect the adoption to have a material impact on the recognition, measurement or presentation of lease expenses within the Consolidated Statements of Operations and Comprehensive Income or Consolidated Statements of Cash Flows. See Note 8–Lease Obligations to the Financial Statements for further information related to the Company’s future minimum lease payments and the timing of those payments.

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Schedule of Revenue by Contract Type [Table Text Block]	The components of the Company’s revenue by contract type for the three and six months ended June 30, 2018 were as follows: Three months ended June 30, 2018 T&D C&I Total (in thousands) Amount Percent Amount Percent Amount Percent Fixed price $ 77,230 39.2 % $ 90,439 63.4 % $ 167,669 49.4 % Unit Price 41,631 21.1 15,408 10.8 57,039 16.8 T&E 68,073 34.6 8,942 6.3 77,015 22.7 Other 9,991 5.1 27,962 19.5 37,953 11.1 $ 196,925 100.0 % $ 142,751 100.0 % $ 339,676 100.0 % Six months ended June 30, 2018 T&D C&I Total (in thousands) Amount Percent Amount Percent Amount Percent Fixed price $ 156,665 37.9 % $ 179,594 66.0 % $ 336,259 49.1 % Unit Price 87,307 21.1 25,058 9.2 112,365 16.4 T&E 148,418 35.9 18,399 6.8 166,817 24.3 Other 20,921 5.1 48,925 18.0 69,846 10.2 $ 413,311 100.0 % $ 271,976 100.0 % $ 685,287 100.0 %
Schedule of Revenue by Market Type [Table Text Block]	The components of the Company’s revenue by market type for the three and six months ended June 30, 2018 were as follows: Three months ended June 30, 2018 Six months ended June 30, 2018 (in thousands) Amount Percent Segment Amount Percent Segment Transmission $ 121,708 35.8 % T&D $ 256,161 37.4 % T&D Distribution 75,217 22.2 T&D 157,150 22.9 T&D Electrical Construction 142,751 42.0 C&I 271,976 39.7 C&I Total Revenue $ 339,676 100.0 % $ 685,287 100.0 %
Contract with Customer, Asset and Liability [Table Text Block]	The following table provides information about receivables, contract assets and contract liabilities from contracts with customers: June 30, December 31, (in thousands) 2018 2017 Change Contract assets $ 87,356 $ 78,260 $ 9,096 Contract liabilities (48,407 ) (28,919 ) (19,488 ) Net contract assets (liabilities) $ 38,949 $ 49,341 $ (10,392 )
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]	Management’s Discussion and Analysis of Financial Condition and Results of Operations”. Remaining Performance Obligations as of June 30, 2018 (In thousands) Total Amount estimated to not be T&D $ 406,376 $ 53,876 C&I 524,239 128,238 Total $ 930,615 $ 182,114

Contracts in Process (Tables)

Contracts in Process (Tables)	6 Months Ended
	Jun. 30, 2018
Costs in Excess of Billings and Billings in Excess of Costs [Table Text Block]	The net asset position for contracts in process consisted of the following: June 30, December 31, (In thousands) 2018 2017 Costs and estimated earnings on uncompleted contracts $ 2,105,022 $ 1,978,981 Less: Billings to date 2,066,073 1,929,640 $ 38,949 $ 49,341
Consolidated Balance Sheet [Member]
Costs in Excess of Billings and Billings in Excess of Costs [Table Text Block]	The net asset position for contracts in process included in the accompanying consolidated balance sheets was as follows: June 30, December 31, (In thousands) 2018 2017 Costs and estimated earnings in excess of billings on uncompleted contracts $ 87,356 $ 78,260 Billings in excess of costs and estimated earnings on uncompleted contracts (48,407 ) (28,919 ) $ 38,949 $ 49,341

Lease Obligations (Tables)

Lease Obligations (Tables)	6 Months Ended
	Jun. 30, 2018
Leases [Abstract]
Schedule of Future Minimum Lease Payments for Capital and Operating Leases [Table Text Block]	The future minimum lease payments required under capital leases and operating leases, together with the present value of capital leases, as of June 30, 2018 were as follows: Capital Operating (In thousands) Lease Lease Remainder of 2018 $ 592 $ 2,219 2019 1,185 3,413 2020 1,185 2,338 2021 355 1,680 2022 — 1,081 Thereafter — 514 Total minimum lease payments $ 3,317 $ 11,245 Interest (147 ) Net present value of minimum lease payments 3,170 Less: Current portion of capital lease obligations 1,102 Long-term capital lease obligations $ 2,068

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment [Table Text Block]	The information in the following table is derived from the segment’s internal financial reports used for corporate management purposes: Three months ended Six months ended June 30, June 30, (In thousands) 2018 2017 2018 2017 Contract revenues: T&D $ 196,925 $ 239,794 $ 413,311 $ 435,528 C&I 142,751 116,391 271,976 220,786 $ 339,676 $ 356,185 $ 685,287 $ 656,314 Income from operations: T&D $ 11,018 $ 8,074 $ 24,559 $ 13,216 C&I 9,635 4,751 14,971 9,165 General Corporate (10,296 ) (9,223 ) (20,766 ) (18,299 ) $ 10,357 $ 3,602 $ 18,764 $ 4,082

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Net income available to common shareholders and the weighted average number of common shares used to compute basic and diluted earnings per share were as follows: Three months ended Six months ended June 30, June 30, (In thousands, except per share data) 2018 2017 2018 2017 Numerator: Net income $ 6,835 $ 1,230 $ 12,479 $ 2,430 Denominator: Weighted average common shares outstanding 16,455 16,312 16,388 16,237 Weighted average dilutive securities 137 191 167 239 Weighted average common shares outstanding, diluted 16,592 16,503 16,555 16,476 Income per common share, basic $ 0.42 $ 0.08 $ 0.76 $ 0.15 Income per common share, diluted $ 0.41 $ 0.07 $ 0.75 $ 0.15
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	The following table summarizes the shares of common stock underlying the Company’s unvested stock options and performance awards that were excluded from the calculation of dilutive securities: Three months ended Six months ended June 30, June 30, (In thousands) 2018 2017 2018 2017 Restricted stock 30 44 1 44 Performance awards 68 50 86 127

Organization, Business and Ba24

Organization, Business and Basis of Presentation (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Organization Consolidation and Presentation of Financial Statements [Line Items]
Operating Income (Loss)	$ 10,357	$ 3,602	$ 18,764	$ 4,082
Net Income (Loss) Attributable to Parent	$ 6,835	$ 1,230	$ 12,479	$ 2,430
Earnings Per Share, Diluted	$ 0.41	$ 0.07	$ 0.75	$ 0.15
Revenues	$ 339,676		$ 685,287
Foreign Currency Transaction Gain (Loss)				$ 100
Significant Change Orders Or Claims [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Revenues			$ 6,700	$ 5,200
Estimate Adjustment [Member]
Organization Consolidation and Presentation of Financial Statements [Line Items]
Cost Estimate Revision Gross Margin Increase (Decrease) Percentage	0.10%	(2.10%)	0.10%	(1.00%)
Operating Income (Loss)	$ 200	$ (7,400)	$ 100	$ (6,800)
Net Income (Loss) Attributable to Parent	$ 200	$ (4,400)	$ 100	$ (4,100)
Earnings Per Share, Diluted	$ 0.01	$ (0.27)		$ (0.25)

Revenue Recognition (Details)

Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Amount	$ 339,676	$ 685,287
Percent	100.00%	100.00%
Contract Type Fixed price [Member]
Amount	$ 167,669	$ 336,259
Percent	49.40%	49.10%
Contract Type Unit Price [Member]
Amount	$ 57,039	$ 112,365
Percent	16.80%	16.40%
Contract Type T&E [Member]
Amount	$ 77,015	$ 166,817
Percent	22.70%	24.30%
Contract Type Other [Member]
Amount	$ 37,953	$ 69,846
Percent	11.10%	10.20%
T&D [Member]
Amount	$ 196,925	$ 413,311
Percent	100.00%	100.00%
T&D [Member] | Contract Type Fixed price [Member]
Amount	$ 77,230	$ 156,665
Percent	39.20%	37.90%
T&D [Member] | Contract Type Unit Price [Member]
Amount	$ 41,631	$ 87,307
Percent	21.10%	21.10%
T&D [Member] | Contract Type T&E [Member]
Amount	$ 68,073	$ 148,418
Percent	34.60%	35.90%
T&D [Member] | Contract Type Other [Member]
Amount	$ 9,991	$ 20,921
Percent	5.10%	5.10%
C&I [Member]
Amount	$ 142,751	$ 271,976
Percent	100.00%	100.00%
C&I [Member] | Contract Type Fixed price [Member]
Amount	$ 90,439	$ 179,594
Percent	63.40%	66.00%
C&I [Member] | Contract Type Unit Price [Member]
Amount	$ 15,408	$ 25,058
Percent	10.80%	9.20%
C&I [Member] | Contract Type T&E [Member]
Amount	$ 8,942	$ 18,399
Percent	6.30%	6.80%
C&I [Member] | Contract Type Other [Member]
Amount	$ 27,962	$ 48,925
Percent	19.50%	18.00%

Revenue Recognition (Details 1)

Revenue Recognition (Details 1) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Revenues	$ 339,676	$ 685,287
Concentration Risk, Percentage	100.00%	100.00%
T&D [Member]
Revenues	$ 196,925	$ 413,311
Concentration Risk, Percentage	100.00%	100.00%
T&D [Member] | Market Type Transmission [Member]
Revenues	$ 121,708	$ 256,161
Concentration Risk, Percentage	35.80%	37.40%
T&D [Member] | Market Type Distribution [Member]
Revenues	$ 75,217	$ 157,150
Concentration Risk, Percentage	22.20%	22.90%
C&I [Member]
Revenues	$ 142,751	$ 271,976
Concentration Risk, Percentage	100.00%	100.00%
C&I [Member] | Market Type Electrical Construction [Member]
Revenues	$ 142,751	$ 271,976
Concentration Risk, Percentage	42.00%	39.70%

Revenue Recognition (Details 2)

Revenue Recognition (Details 2) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Contract Liabilities
Contract assets	$ 87,356	$ 78,260
Contract liabilities	(48,407)	(28,919)
Net contract assets (liabilities)	38,949	$ 49,341
Net Period Change [Member]
Contract Liabilities
Contract assets	9,096
Contract liabilities	(19,488)
Net contract assets (liabilities)	$ (10,392)

Revenue Recognition (Details 3)

Revenue Recognition (Details 3) $ in Thousands	Jun. 30, 2018USD ($)
Total, Remaining Performance Obligation	$ 930,615
Amount estimated to not be recognized within 12 months	182,114
T&D [Member]
Total, Remaining Performance Obligation	406,376
Amount estimated to not be recognized within 12 months	53,876
C&I [Member]
Total, Remaining Performance Obligation	524,239
Amount estimated to not be recognized within 12 months	$ 128,238

Revenue Recognition (Details Te

Revenue Recognition (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018	Jan. 02, 2018	Dec. 31, 2017
Contract with Customer, Liability, Revenue Recognized	$ 20,500	$ 31,100
Revenue, Remaining Performance Obligation	930,615	930,615
Retained Earnings (Accumulated Deficit)	156,150	156,150		$ 143,241
Accounting Standards Update 2014-09 [Member]
Increase in Revenue	$ 200	$ 300
Accounting Standards Update 2014-09 [Member] | Restatement Adjustment [Member]
Retained Earnings (Accumulated Deficit)			$ 700

Contracts in Process (Details)

Contracts in Process (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Contracts in Process [Line Items]
Costs and estimated earnings on uncompleted contracts	$ 2,105,022	$ 1,978,981
Less: Billings to date	2,066,073	1,929,640
Net asset position for contracts in process	$ 38,949	$ 49,341

Contracts in Process (Details 1

Contracts in Process (Details 1) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Contracts in Process [Line Items]
Costs and estimated earnings in excess of billings on uncompleted contracts	$ 87,356	$ 78,260
Billings in excess of costs and estimated earnings on uncompleted contracts	(48,407)	(28,919)
Net asset position for contracts in process	$ 38,949	$ 49,341

Debt (Details Textual)

Debt (Details Textual) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2016	Dec. 31, 2017
Debt Instrument [Line Items]
Letters of Credit Outstanding, Amount	$ 20.6		$ 20.9
Long-term Line of Credit	57.8		79
Debt Issuance Costs, Line of Credit Arrangements, Net	$ 0.7
Debt Instrument Covenant Leveraged Debt Ratio Restriction	2.25
Insurance Program Obligations [Member]
Debt Instrument [Line Items]
Letters of Credit Outstanding, Amount	$ 17.6		17.6
Contract Performance Obligations [Member]
Debt Instrument [Line Items]
Letters of Credit Outstanding, Amount	$ 3		$ 3.3
Maximum [Member]
Debt Instrument [Line Items]
Leverage Coverage Ratio Expansion	3.5
Leverage Coverage Ratio	3
Maximum [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.375%
Maximum [Member] | Performance letters of credit [Member]
Debt Instrument [Line Items]
Letter of credit fee (as a percent)	1.125%
Maximum [Member] | Non-performance Letters Of Credit [Member]
Debt Instrument [Line Items]
Interest rate margin (as a percent)	2.125%
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Interest rate margin (as a percent)	2.00%
Maximum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Interest rate margin (as a percent)	1.00%
Minimum [Member]
Debt Instrument [Line Items]
Interest coverage ratio	3
Minimum [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.20%
Minimum [Member] | Performance letters of credit [Member]
Debt Instrument [Line Items]
Letter of credit fee (as a percent)	0.625%
Minimum [Member] | Non-performance Letters Of Credit [Member]
Debt Instrument [Line Items]
Interest rate margin (as a percent)	1.125%
Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Interest rate margin (as a percent)	1.00%
Minimum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Interest rate margin (as a percent)	0.00%
Syndicated Credit Agreement [Member] | Facility [Member]
Debt Instrument [Line Items]
Option to increase borrowing capacity		$ 100
Maximum borrowing capacity		$ 250
Credit Agreement [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	2.86%
Credit Agreement [Member] | Facility [Member]
Debt Instrument [Line Items]
Percentage of Capital Stock From Direct Foreign Subsidiaries		65.00%
Maximum Acquisition Consideration Under Credit Agreement	$ 50
Credit Agreement [Member] | Foreign Revolving Loans and Letters of Credit [Member] | Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 50

Income Taxes (Details Textual)

Income Taxes (Details Textual) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Income Taxes [Line Items]
U.S. federal statutory tax rate (as a percent)	21.00%	35.00%	21.00%	35.00%
Effective Income Tax Rate Reconciliation, Percent	28.80%	67.30%	28.80%	47.20%
Unrecognized Tax Benefit Including Tax Interest Accrued	$ 0.4		$ 0.4		$ 0.8
Tax Benefit Stock Compensation [Member]
Income Taxes [Line Items]
Current Federal Tax Expense (Benefit)			$ 1

Commitments and Contingencies (

Commitments and Contingencies (Details Textual) $ in Millions	Jun. 30, 2018USD ($)
Other Commitments [Line Items]
Outstanding Performance Bonds	$ 606.1
Estimated Cost to Complete Bonded Projects	247.3
Purchase Commitment, Remaining Minimum Amount Committed	7.3
Maximum [Member]
Other Commitments [Line Items]
Loss Contingency Insurance Policy Deductible for Each Line of Coverage Excluding Wildfire and Health	1
Loss Contingency Insurance Policy Deductible for Wildfire	2
Loss Contingency Health Insurance Deductible For Qualified Individuals	$ 0.2

Lease Obligations (Details)

Lease Obligations (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Capital Lease Obligations
Remainder of 2018	$ 592
2,019	1,185
2,020	1,185
2,021	355
2,022	0
Thereafter	0
Total minimum lease payments	3,317
Interest	(147)
Net present value of minimum lease payments	3,170
Less: Current portion of capital lease obligations	1,102	$ 1,086
Long-term capital lease obligations	2,068	$ 2,629
Operating Lease Obligations
Remainder of 2018	2,219
2,019	3,413
2,020	2,338
2,021	1,680
2,022	1,081
Thereafter	514
Total minimum lease payments	$ 11,245

Lease Obligations (Details Text

Lease Obligations (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Capital Leases, Balance Sheet, Assets by Major Class, Net, Total	$ 3,200	$ 3,700
Capital Lease Obligations, Current	1,102	1,086
Capital Lease Obligations	$ 3,100	$ 3,700

Stock-Based Compensation (Detai

Stock-Based Compensation (Details Textual) $ / shares in Units, $ in Millions	6 Months Ended
	Jun. 30, 2018USD ($)$ / sharesshares
Other information
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | shares	87,557
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price | $ / shares	$ 21.55
Restricted Awards [Member]
Other information
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | shares	86,870
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value | $ / shares	$ 29.40
Restricted Awards [Member] | Long-Term Incentive Plan [Member]
Weighted-Average Grant Date Fair Value
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value | $ / shares	$ 30.16
Other information
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | shares	92,244
Performance awards [Member]
Other information
Reversal of Share Based Compensation | $	$ 0.4
Performance awards [Member] | Maximum [Member]
Weighted-Average Grant Date Fair Value
Potential Payout As a Percentage of Target Shares	200.00%
Performance awards [Member] | Long-Term Incentive Plan [Member]
Weighted-Average Grant Date Fair Value
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value | $ / shares	$ 34.52
Other information
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | shares	66,764
Market based Performance Awards [Member]
Other information
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period	2 years 9 months 18 days
Internal Measure based Performance Awards [Member]
Other information
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period	2 years 9 months 18 days
Restricted Stock Units (RSUs) [Member]
Other information
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period	1 year

Segment Information (Details)

Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Contract revenues	$ 339,676	$ 356,185	$ 685,287	$ 656,314
Income from operations	10,357	3,602	18,764	4,082
T&D [Member]
Segment Reporting Information [Line Items]
Contract revenues	196,925	239,794	413,311	435,528
Income from operations	11,018	8,074	24,559	13,216
C&I [Member]
Segment Reporting Information [Line Items]
Contract revenues	142,751	116,391	271,976	220,786
Income from operations	9,635	4,751	14,971	9,165
General Corporate [Member]
Segment Reporting Information [Line Items]
Income from operations	$ (10,296)	$ (9,223)	$ (20,766)	$ (18,299)

Segment Information (Details Te

Segment Information (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Contract revenues	$ 339,676	$ 356,185	$ 685,287	$ 656,314
Canadian Operation [Member]
Segment Reporting Information [Line Items]
Contract revenues	$ 14,500	$ 17,200	$ 29,200	$ 36,400

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Numerator:
Net income	$ 6,835	$ 1,230	$ 12,479	$ 2,430
Denominator:
Weighted average common shares outstanding	16,455	16,312	16,388	16,237
Weighted average dilutive securities	137	191	167	239
Weighted average common shares outstanding, diluted	16,592	16,503	16,555	16,476
Income per common share, basic	$ 0.42	$ 0.08	$ 0.76	$ 0.15
Income per common share, diluted	$ 0.41	$ 0.07	$ 0.75	$ 0.15

Earnings Per Share (Details 1)

Earnings Per Share (Details 1) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Performance awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	68	50	86	127
Restricted stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	30	44	1	44

Subsequent Events (Details Text

Subsequent Events (Details Textual) - Subsequent Event [Member] $ in Millions	Jul. 02, 2018USD ($)
Subsequent Event [Line Items]
Business Combination, Acquisition Related Costs	$ 0.2
Huen Electric Inc [Member]
Subsequent Event [Line Items]
Payments to Acquire Businesses, Gross	$ 47.1