Gse Systems (GVP) 10-Q 14 Aug 19 2019 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Jul. 31, 2019
Document and Entity Information [Abstract]
Entity Registrant Name	GSE SYSTEMS INC
Entity Central Index Key	0000944480
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		20,099,981
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Entity Address, State or Province	MD

CONSOLIDATED BALANCE SHEETS (Un

CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 9,672	$ 12,123
Contract receivables, net	19,065	21,077
Prepaid expenses and other current assets	2,210	1,800
Total current assets	30,947	35,000
Equipment, software, and leasehold improvements	5,522	5,293
Accumulated depreciation	(4,419)	(4,228)
Equipment, software, and leasehold improvements, net	1,103	1,065
Software development costs, net	599	615
Goodwill	16,709	13,170
Intangible assets, net	8,454	6,080
Deferred tax assets	7,049	5,461
Operating lease - right of use assets, net	4,071	0
Other assets	64	49
Total assets	68,996	61,440
Current liabilities:
Current portion of long-term debt, net of debt issuance costs and original issue discount	4,773	1,902
Accounts payable	1,879	1,307
Accrued expenses	1,145	2,646
Accrued compensation	3,006	3,649
Billings in excess of revenue earned	6,165	10,609
Accrued warranty	1,136	981
Income taxes payable	1,163	1,176
Other current liabilities	1,133	60
Total current liabilities	20,400	22,330
Long-term debt, less current portion, net of debt issuance costs and original issue discount	16,161	6,610
Operating lease liabilities	3,439	0
Other liabilities	1,375	1,371
Total liabilities	41,375	30,311
Commitments and contingencies
Stockholders' equity:
Preferred stock $0.01 par value, 2,000,000 shares authorized, no shares issued and outstanding	0	0
Common stock $0.01 par value; 60,000,000 shares authorized, 21,698,635 shares issued, 20,099,724 shares outstanding as of June 30, 2019; 60,000,000 shares authorized, 21,485,445 shares issued, 19,886,534 shares outstanding as of December 31, 2018	217	214
Additional paid-in capital	79,028	78,118
Accumulated deficit	(46,930)	(42,569)
Accumulated other comprehensive loss	(1,695)	(1,635)
Treasury stock at cost, 1,598,911 shares on June 30, 2019 and December 31, 2018	(2,999)	(2,999)
Total stockholders' equity	27,621	31,129
Total liabilities and stockholders' equity	$ 68,996	$ 61,440

CONSOLIDATED BALANCE SHEETS (_2

CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares	Jun. 30, 2019	Dec. 31, 2018
Stockholders' equity:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	60,000,000	60,000,000
Common stock, shares issued (in shares)	21,698,635	21,485,445
Common stock, shares outstanding (in shares)	20,099,724	19,886,534
Treasury stock (in shares)	1,598,911	1,598,911

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Revenue	$ 23,458	$ 24,698	$ 45,652	$ 47,593
Cost of revenue	17,591	18,358	35,049	36,355
Gross profit	5,867	6,340	10,603	11,238
Operating expenses:
Selling, general and administrative	4,343	4,793	8,766	9,320
Research and development	156	189	396	518
Restructuring charges	2	190	2	1,107
Loss on impairment	0	0	5,464	0
Depreciation	102	176	193	279
Amortization of definite-lived intangible assets	547	312	1,056	462
Total operating expenses	5,150	5,660	15,877	11,686
Operating income (loss)	717	680	(5,274)	(448)
Interest (expense), net	(316)	(61)	(524)	(39)
Loss on derivative instruments, net	(101)	(91)	(8)	(247)
Other (expense) income, net	(19)	4	3	29
Income (loss) before income taxes	281	532	(5,803)	(705)
Provision (benefit) for income taxes	406	(449)	(1,442)	(190)
Net (loss) income	$ (125)	$ 981	$ (4,361)	$ (515)
Basic (loss) income per common share (in dollars per share)	$ (0.01)	$ 0.05	$ (0.22)	$ (0.03)
Diluted (loss) income per common share (in dollars per share)	$ (0.01)	$ 0.05	$ (0.22)	$ (0.03)
Weighted average shares outstanding - Basic (in shares)	20,006,492	19,651,441	19,979,018	19,580,046
Weighted average shares outstanding - Diluted (in shares)	20,006,492	20,029,123	19,979,018	19,580,046

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME [Abstract]
Net (loss) income	$ (125)	$ 981	$ (4,361)	$ (515)
Cumulative translation adjustment	27	(182)	(60)	(227)
Comprehensive (loss) income	$ (98)	$ 799	$ (4,421)	$ (742)

CONSOLIDATED STATEMENT OF CHANG

CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2017	$ 210	$ 76,802	$ (42,870)	$ (1,471)	$ (2,999)	$ 29,672
Balance (in shares) at Dec. 31, 2017	21,024,395				(1,598,911)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense		968				968
Common stock issued for options exercised (in shares)	129,513
Common stock issued for options exercised	$ 1	93				94
Common stock issued for RSUs vested (in shares)	156,898
Common stock issued for RSUs vested	$ 2	(2)				0
Shares withheld to pay taxes		(250)				(250)
Foreign currency translation adjustment				(227)		(227)
Net income (loss)			(515)			(515)
Balance at Jun. 30, 2018	$ 213	77,611	(42,730)	(1,698)	$ (2,999)	30,397
Balance (in shares) at Jun. 30, 2018	21,310,806				(1,598,911)
Balance at Mar. 31, 2018	$ 212	77,376	(43,711)	(1,516)	$ (2,999)	29,362
Balance (in shares) at Mar. 31, 2018	21,215,884				(1,598,911)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense		373				373
Common stock issued for options exercised (in shares)	20,000
Common stock issued for options exercised	$ 0	37				37
Common stock issued for RSUs vested (in shares)	74,922
Common stock issued for RSUs vested	$ 1	(1)
Shares withheld to pay taxes		(174)				(174)
Foreign currency translation adjustment				(182)		(182)
Net income (loss)			981			981
Balance at Jun. 30, 2018	$ 213	77,611	(42,730)	(1,698)	$ (2,999)	30,397
Balance (in shares) at Jun. 30, 2018	21,310,806				(1,598,911)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of adopting ASC 606			655			655
Balance at Dec. 31, 2018	$ 214	78,118	(42,569)	(1,635)	$ (2,999)	31,129
Balance (in shares) at Dec. 31, 2018	21,485,445				(1,598,911)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense		1,069				1,069
Common stock issued for options exercised (in shares)	9,011
Common stock issued for options exercised	$ 1	74				75
Common stock issued for RSUs vested (in shares)	205,000
Common stock issued for RSUs vested	$ 2	(2)				0
Shares withheld to pay taxes		(231)				(231)
Foreign currency translation adjustment				(60)		(60)
Net income (loss)			(4,361)			(4,361)
Balance at Jun. 30, 2019	$ 217	79,028	(46,930)	(1,695)	$ (2,999)	27,621
Balance (in shares) at Jun. 30, 2019	21,698,635				(1,598,911)
Balance at Mar. 31, 2019	$ 216	78,578	(46,805)	(1,722)	$ (2,999)	27,268
Balance (in shares) at Mar. 31, 2019	21,595,215				(1,598,911)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense		499				499
Common stock issued for options exercised (in shares)	7,503
Common stock issued for options exercised	$ 0	33				33
Common stock issued for RSUs vested (in shares)	95,917
Common stock issued for RSUs vested	$ 1	(1)				0
Shares withheld to pay taxes		(81)				(81)
Foreign currency translation adjustment				27		27
Net income (loss)			(125)			(125)
Balance at Jun. 30, 2019	$ 217	$ 79,028	$ (46,930)	$ (1,695)	$ (2,999)	$ 27,621
Balance (in shares) at Jun. 30, 2019	21,698,635				(1,598,911)

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net (loss) income	$ (4,361)	$ (515)
Adjustments to reconcile net loss to net cash used in operating activities:
Loss on impairment	5,464	0
Depreciation	193	279
Amortization of definite-lived intangible assets	1,056	462
Amortization of capitalized software development costs	228	203
Change in fair value of contingent consideration	(1,200)	0
Stock-based compensation expense	1,036	1,028
Bad debt expense	0	117
Loss on derivative instruments, net	8	247
Deferred income taxes	(1,590)	(179)
Gain on sale of equipment, software, and leasehold improvements	(7)	0
Changes in assets and liabilities:
Contract receivables, net	4,878	(3,030)
Prepaid expenses and other assets	(4)	506
Accounts payable, accrued compensation, and accrued expenses	(2,276)	(1,082)
Billings in excess of revenue earned	(4,512)	(4,121)
Accrued warranty	117	(239)
Other liabilities	61	(15)
Cash used in operating activities	(909)	(6,339)
Cash flows from investing activities:
Proceeds from sale of equipment, software and leasehold improvements	13	0
Purchase of equipment, software and leasehold improvements	(25)	(488)
Capitalized software development costs	(212)	(272)
Acquisition of True North Consulting, net of cash acquired	0	(9,791)
Acquisition of DP Engineering, net of cash acquired	(13,521)	0
Cash used in investing activities	(13,745)	(10,551)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	14,263	10,154
Repayment of long-term debt	(1,841)	(683)
Proceeds from issuance of common stock	75	94
Contingent consideration payments to former owners of Hyperspring, LLC	0	(1,701)
Shares withheld to pay taxes	(231)	(250)
Cash provided by financing activities	12,266	7,614
Effect of exchange rate changes on cash	(63)	(313)
Net decrease in cash, cash equivalents, and restricted cash	(2,451)	(9,589)
Cash, cash equivalents, and restricted cash, beginning balance	12,123	20,071
Cash, cash equivalents, and restricted cash, ending balance	$ 9,672	$ 10,482

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2019
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	1. Summary of Significant Accounting Policies Basis of Presentation The consolidated interim financial statements included herein have been prepared by GSE and are unaudited. In the opinion of the Company's management, all adjustments and reclassifications of a normal and recurring nature necessary to present fairly the financial position, results of operations and cash flows for the periods presented have been made. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") have been condensed or omitted. The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. The accompanying balance sheet data for the year ended December 31, 2018 was derived from our audited financial statements, but it does not include all disclosures required by U.S. GAAP. The results of operations for interim periods are not necessarily an indication of the results for the full year. These consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2018, filed with the Securities and Exchange Commission on March 27, 2019. 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 and disclosure of contingent assets and liabilities at the date of the financial statements as well as reported amounts of revenues and expenses during the reporting period. The Company’s most significant estimates relate to revenue recognition on contracts with customers, allowance for doubtful accounts, product warranties, valuation of goodwill and intangible assets acquired including impairment test, valuation of long-lived assets to be disposed of, valuation of contingent consideration issued in business acquisitions, valuation of stock-based compensation awards, and the recoverability of deferred tax assets. Actual results could differ from these estimates and those differences could be material.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	6 Months Ended
	Jun. 30, 2019
Recent Accounting Pronouncements [Abstract]
Recent Accounting Pronouncements	2. Recent Accounting Pronouncements Accounting pronouncements recently adopted In February 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Updates ("ASU") No. 2016-02, Leases (Topic 842), The Company adopted the new standard using the modified retrospective approach effective on January 1, 2019. The Company's adoption included lease codification improvements that were issued by the FASB through June 2019. The FASB made available several practical expedients in adopting the new lease accounting guidance. The Company elected the package of practical expedients permitted under the transition guidance within the amended guidance, which among other things, allowed registrants to carry forward historical lease classification. The Company elected the practical expedient that allows the combination of both lease and non-lease components as a single component and account for it as a lease for all classes of underlying assets. The Company elected not to apply the new guidance to short term leases with an initial term of twelve months or less. The Company recognizes those lease payments in the consolidated statements of operations on a straight-line basis over the lease term. The Company elected to use a single discount rate for a portfolio of leases with reasonably similar characteristics. The most significant impact was the recognition of ROU assets and related lease liabilities for operating leases on the consolidated balance sheets. The Company recognized ROU assets and related lease liabilities of $2.7 million and $3.0 million respectively, related to operating lease commitments, as of January 1, 2019. The operating lease ROU asset represents the lease liability, plus any lease payments made at or before the commencement date, less any lease incentives received. The new guidance did not have a material impact on the Company's cash flows or results of operations. See Note 16 of the consolidated financial statements. Accounting pronouncements not yet adopted In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses In January 2017, the FASB issued ASU 2017-04, Simplifying the Test for Goodwill Impairment

Basic and Diluted (Loss) Income

Basic and Diluted (Loss) Income per Common Share	6 Months Ended
	Jun. 30, 2019
Basic and Diluted (Loss) Income per Common Share [Abstract]
Basic and Diluted (Loss) Income per Common Share	3. Basic and Diluted (Loss) Income per Common Share Basic (loss) income per share is computed by dividing net (loss) income by weighted average number of outstanding shares of common stock outstanding for the period. Diluted net (loss) income per share adjusts the weighted average shares outstanding for the potential dilution that could occur if outstanding vested stock options were exercised and restricted stock units ("RSU") were vested, unless the impact of potential dilutive common shares outstanding are anti-dilutive. Since we experienced a net loss for the three months ended June 30, 2019, six months ended June 30, 2019 and 2018, basic and diluted net loss per share are the same. The diluted loss per share for the three months ended June 30, 2019, and six months ended June 30, 2019 and 2018 excludes the impact of potentially dilutive securities since they would have an anti-dilutive effect. The diluted income per share for three months ended June 30, 2018 includes the impact of potentially dilutive securities. The number of common shares and common share equivalents used in the determination of basic and diluted loss per share were as follows: (in thousands, except for share amounts) Three months ended Six months ended June 30, June 30, 2019 2018 2019 2018 Numerator: Net (loss) income $ (125 ) $ 981 $ (4,361 ) $ (515 ) Denominator: Weighted-average shares outstanding for basic loss per share 20,006,492 19,651,441 19,979,018 19,580,046 Effect of dilutive securities: Stock options and restricted stock units - 377,682 - - Adjusted weighted-average shares outstanding and assumed conversions for diluted loss per share 20,006,492 20,029,123 19,979,018 19,580,046 Shares related to dilutive securities excluded because inclusion would be anti-dilutive 263,241 374,833 175,848 714,821

Acquisitions

Acquisitions	6 Months Ended
	Jun. 30, 2019
Acquisitions [Abstract]
Acquisitions	4. Acquisitions 2019 Acquisition DP Engineering On February 15, 2019, through its wholly-owned subsidiary Performance Solutions, the Company entered into a membership interest purchase agreement with Steven L. Pellerin, Christopher A. Davenport, and DP Engineering (the “DP Engineering Purchase Agreement”), to purchase 100% of the membership interests in DP Engineering for $13.5 million. The purchase price is subject to customary pre- and post-closing working capital adjustments plus an additional earn-out amount not to exceed $5 million, potentially payable in 2020 and 2021 depending on DP Engineering’s satisfaction of certain targets for adjusted earnings before interest, tax, depreciation and amortization ("EBITDA") in calendar years 2019 and 2020, respectively. The acquisition was completed through the drawdown of $14.3 million (including transaction costs) of the term loan. An escrow of approximately $1.7 million was funded at the closing and is available to GSE to satisfy indemnification claims for 18 months after the closing. DP Engineering is a provider of value-added technical engineering solutions and consulting services to nuclear power plants with an emphasis on preparation and implementation of design modifications during plant outages, which is in line with our Performance segment. The Company's allocation of the purchase price remains preliminary and the net assets are subject to adjustments within the measurement period, which is not to exceed one year from the acquisition date. Based on preliminary forecasted adjusted EBITDA of DP Engineering for year 2019 and 2020, as of the acquisition date, the estimated fair value of the total earn-out amount was $1.2 million and was recorded as contingent consideration. The following table summarizes the calculation of adjusted purchase price as of the acquisition date (in thousands): Base purchase price per agreement $ 13,500 Pre closing working capital adjustment 155 Fair value of contingent consideration 1,200 Total purchase price $ 14,855 The following table summarizes the consideration paid to acquire DP Engineering and the preliminary fair value of the assets acquired and liabilities assumed at the date of the transaction. Due to the recent completion of the acquisition, the Company recorded the assets acquired and liabilities assumed at their preliminary estimated fair value. As of June 30, 2019, the Company had not finalized the determination of the fair value allocated to various assets and liabilities, including, but not limited to, contract receivables, prepaid expenses and other current assets, intangible assets, accounts payable, accrued expenses, contingent consideration, accrued compensation and the residual amount allocated to goodwill. The following amounts except for cash are all reflected in the consolidated statement of cash flows within the "Acquisition of DP Engineering, net of cash acquired" line caption. ( in thousands Total purchase price $ 14,855 Purchase price allocation: Cash 134 Contract receivables 2,934 Prepaid expenses and other current assets 209 Property, and equipment, net 210 Intangible assets 6,798 Other assets 1,806 Accounts payable and accrued expenses (1,375 ) Other liabilities (1,494 ) Total identifiable net assets 9,222 Goodwill 5,633 Net assets acquired $ 14,855 The fair value of the assets acquired includes gross trade receivables of $2.9 million, of which the Company has collected in full. GSE did not acquire any other class of receivable as a result of the acquisition of DP Engineering. The goodwill is primarily attributable to value-added technical engineering solutions and consulting services to nuclear power plants with an emphasis on preparation and implementation of design modification during plant outages, the workforce of the acquired business and the significant synergies expected to arise after the acquisition of DP Engineering. The total amount of goodwill is expected to be tax deductible. All of the $5.6 million of goodwill was assigned to our Performance segment. As discussed above, the goodwill amount is provisional pending receipt of the final valuations of various assets and liabilities and is subject to adjustments within the measurement period, which is not to exceed one year from the acquisition date. The Company identified other intangible assets of $6.8 million, including customer contracts and relationships, tradename, and non-compete agreements, with amortization periods of five years to fifteen years. Please see Note 8 for further analysis on the carrying amount change due to impairment on goodwill and definite-lived intangible assets during the six months ended June 30, 2019. The Company is assessing the likelihood of additional impairment against goodwill and intangible assets upon the termination notice received from the customer of DP Engineering on August 6, 2019, as described in Note 8 and Note 19. The following table summarizes the fair value of intangible assets acquired at the date of acquisition and the related weighted average amortization period: Intangible Assets Weighted average amortization period Fair Value (in years) (in thousands) Customer relationships 15 $ 4,898 Tradename 10 1,172 Non-compete agreements 5 728 Total $ 6,798 DP Engineering contributed revenue of $4.3 million to GSE for the period from February 15, 2019 to June 30, 2019. 2018 Acquisition True North On May 11, 2018, GSE, through its wholly-owned subsidiary Performance Solutions, entered into a membership interest purchase agreement with Donald R. Horn, Jenny C. Horn, and True North Consulting LLC (the "True North Purchase Agreement") to purchase 100% of the membership interests in True North Consulting LLC ("True North") for $9.75 million. The purchase price was subject to customary pre- and post-closing working capital adjustments, resulting in total consideration of $9.9 million. The True North Purchase Agreement contains customary representations, warranties, covenants, and indemnification provisions subject to certain limitations. An escrow of $1.5 million was funded from the cash paid to the sellers True North is a provider of technical engineering solutions to nuclear and fossil fuel power plants with an emphasis on regulatory-driven ASME code programs. Located in Montrose, Colorado, True North is a well-regarded service provider to leading companies in the power industry. The acquisition of True North is expected to broaden our engineering services offering, expand our relationships with several of the largest nuclear energy providers in the United States, and add a highly specialized, complementary talent pool to our employee base. The following table summarizes the consideration paid to acquire True North and the preliminary fair value of the assets acquired and liabilities assumed at the date of the transaction. The Company recorded the assets acquired and liabilities assumed at their preliminary estimated fair value. As of June 30, 2019, the Company had finalized the determination of the fair value allocated to various assets and liabilities, including, but not limited to, contract receivables, prepaid expenses and other current assets, intangible assets, accounts payable, accrued expenses, accrued compensation and the residual amount allocated to goodwill. ( in thousands Total purchase price $ 9,915 Purchase price allocation: Cash 306 Contract receivables 1,870 Prepaid expenses and other current assets 8 Property, and equipment, net 1 Intangible assets 5,088 Accounts payable, accrued expenses (1,744 ) Accrued compensation (353 ) Total identifiable net assets 5,176 Goodwill 4,739 Net assets acquired $ 9,915 The fair value of the assets acquired includes gross trade receivables of $1.9 million, of which the Company has collected in full as of June 30, 2019. GSE did not acquire any other class of receivable as a result of the acquisition of True North. The goodwill is primarily attributable to a broader engineering service offering to new and existing customers, the workforce of the acquired business and the significant synergies expected to arise after the acquisition of True North. The total amount of goodwill is tax deductible. All of the $4.7 million of goodwill was assigned to our Performance segment. The Company identified other intangible assets of $5.1 million, including customer relationships, tradename, non-compete agreements, and alliance agreements, with amortization periods of four years to fifteen years. The fair value of the intangible assets is finalized per final valuations for these assets. The following table summarizes the fair value of intangible assets acquired at the date of acquisition and the related weighted average amortization period: Intangible Assets Weighted average amortization period Fair Value (in years) (in thousands) Customer relationships 15 $ 3,758 Tradename 10 582 Non-compete agreements 4 221 Alliance agreements 5 527 Total $ 5,088 Unaudited Pro Forma Financial Information The unaudited pro forma financial information in the table below summarizes the combined results of operations for GSE, True North and DP Engineering as if the business combinations had occurred on January 1, 2018. Three months ended June 30, Six months ended June 30, 2019 2018 2019 2018 ( unaudited and in thousands Revenue $ 23,458 $ 31,664 $ 48,636 $ 59,577 Net income (loss) 77 1,331 (4,250 ) (173 ) The pro forma financial information for all periods presented has been calculated after applying GSE's accounting policies and has also included pro forma adjustments resulting from these acquisitions, including amortization charges of the intangible assets identified from these acquisitions, interest expenses related to the financing transaction in connection with the acquisition of DP Engineering, and the related tax effects as if aforementioned companies were combined as of January 1, 2018. For the six months ended June 30, 2019, the Company has incurred $0.6 million of transaction costs related to the acquisition of DP Engineering. Due to a triggering event described in Note 8, an impairment test was conducted, which resulted in substantially writing down the estimated fair value of goodwill and some of the definite-lived intangible assets initially recognized upon the acquisition. These expenses are included in general and administrative expense on GSE's consolidated statements of operations and are reflected in pro forma loss for the six months ended June 30, 2019, in the table above. For the six months ended June 30, 2018, the Company has incurred $0.5 million of transaction costs related to the acquisition of True North. These expenses are included in general and administrative expense on GSE's consolidated statements of operations and are reflected in pro forma loss for the six months ended June 30, 2018, in the table above. The pro forma financial information is not intended to reflect the actual results of operations that would have occurred if the acquisition had been completed on January 1, 2018, nor is it intended to be an indication of future operating results.

Restructuring Activities

Restructuring Activities	6 Months Ended
	Jun. 30, 2019
Restructuring Activities [Abstract]
Restructuring Activities	5. Restructuring Activities On December 27, 2017, the board of GSE approved an international restructuring plan to streamline and optimize the Company's global operations. Beginning in December 2017, GSE has been in the process of consolidating its engineering services and R&D activities to Maryland and ceasing an unprofitable non-core business in the United Kingdom (UK). As a result, the Company closed its offices in Nyköping, Sweden; Chennai, India; and Stockton-on-Tees, UK. These actions are designed to improve Company productivity by eliminating duplicate employee functions, increasing GSE's focus on its core business, improving efficiency and maintaining the full range of engineering capabilities while reducing costs and organizational complexity. GSE eliminated approximately 40 positions since 2017 due to these changes, primarily in Europe and India, and will undertake other cost-savings measures. The restructuring plan is expected to be completed by the end of 2019. As a result of these efforts, GSE expects to record a total restructuring charge of approximately $2.2 million, primarily related to workforce reductions, contract termination costs and asset write-offs due to the exit activities. As of June 30, 2019, we had recorded total restructuring charges totaling $2.0 million since 2017. We incurred $2,000 costs during the six months ended June 30, 2019. We recognized $1.3 million of restructuring cost for the year ended December 31, 2018. In addition to the total recognized restructuring costs, the Company has an estimated $1.3 million of cumulative translation adjustments that will be charged against net loss and an estimated $1.0 million of tax benefits that will be realized upon liquidation of these foreign entities. GSE expects to recognize the remaining restructuring costs, currency translation adjustments and tax benefits by the end of 2019. For the six months ended June 30, 2019, we made payments related to our restructuring for employee termination benefits and other legal expenses in the amount of $54,000 that had been previously accrued.

Contingent Consideration

Contingent Consideration	6 Months Ended
	Jun. 30, 2019
Contingent Consideration [Abstract]
Contingent Consideration	6. Contingent Consideration Acquisitions may include contingent consideration payments based on future financial measures of an acquired company. Under ASC 805, Business Combinations In connection with the acquisition of DP Engineering on February 15, 2019, the Company recognized the estimated fair value of contingent consideration for $1.2 million. During the six months ended June 30, 2019, as a result of the triggering event described in Note 8, an impairment test was conducted on DP Engineering's goodwill and definite-lived intangible assets and the Company determined the $1.2 million of contingent consideration recognized upon acquisition of DP Engineering has reduced to zero since the related earn-out payment is no longer expected to be paid. We have recorded this reduction as an offset to selling, general and administrative expenses in unaudited consolidated statements of operations. There was no contingent liability as of June 30, 2019.

Contract Receivables

Contract Receivables	6 Months Ended
	Jun. 30, 2019
Contract Receivables [Abstract]
Contract Receivables	7. Contract Receivables Contract receivables represent the Company's unconditional rights to consideration due from a broad base of both domestic and international customers. All contract receivables are considered to be collectible within twelve months. The components of contract receivables are as follows: (in thousands) June 30, December 31, 2019 2018 Billed receivables $ 10,816 $ 15,998 Unbilled receivables 8,675 5,506 Allowance for doubtful accounts (426 ) (427 ) Total contract receivables, net $ 19,065 $ 21,077 Management reviews collectability of receivables periodically and records an allowance for doubtful accounts to reduce our receivables to their net realizable value when it is probable that the Company will not be able to collect all amounts according to the contractual terms of the receivable. The allowance for doubtful accounts is based on historical trends of past due accounts, write-offs, specific identification and review of customer accounts. During the six months ended June 30, 2019 and 2018, the Company did not record any allowances for doubtful accounts. The minor fluctuation on the balance of allowances for doubtful accounts was due to foreign currency exchange rates. During July 2019, the Company invoiced $6.1 million of the unbilled amounts related to the balance at June 30, 2019. As of June 30, 2019, the Company had one customer that accounted for 30.2% its consolidated contract receivables. As of December 31, 2018, the Company had one customer that accounted for 16.8% of its consolidated contract receivables.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2019
Goodwill and Intangible Assets [Abstract]
Goodwill and Intangible Assets	8 Goodwill and Intangible Assets Intangible Assets Subject to Amortization Amortization of intangible assets other than goodwill is recognized on a straight-line basis over the estimated useful life of the intangible assets, except for customer relationships which are recognized in proportion to the related projected revenue streams. Intangible assets with definite lives are reviewed for impairment if indicators of impairment arise. The Company does not have any intangible assets with indefinite useful lives, other than goodwill. As discussed in Note 4, we recognized definite-lived intangible assets of $6.8 million upon acquisition of DP Engineering on February 15, 2019, including customer contracts and relationships, trademarks and non-compete agreements, with amortization periods of 5 to 15 years. Amortization of our definite-lived intangible assets is recognized on a straight-line basis over the estimate useful life of the associated assets. Following the February 23, 2019 event occurring at a DP Engineering customer location and subsequent receipt of the Notice of Suspension on February 28, 2019, the Company concluded that DP Engineering's relationship with a significant customer has been adversely impacted. The DP Engineering customer contracts and relationships were the major component of the definite-lived intangible assets recognized in connection with the acquisition of DP Engineering. Accordingly, the Company determined that a triggering event had occurred requiring an interim assessment of whether a potential impairment of definite-lived intangible asset impairment test was necessary. Therefore, the impairment test of the definite-lived intangible assets recognized upon the acquisition of DP Engineering was also conducted according to ASC 350, Intangibles-Goodwill and other The interim impairment test was based on the present value of revised cash flow projected for five to fifteen years. The result of the impairment test indicated that the current estimated fair value of noted definite-lived intangible assets had declined below their initial estimated fair value. As a result, the Company recognized an impairment charge of $3.4 million at March 31, 2019. The fair value of definite-lived intangible assets recognized upon the acquisition of DP Engineering is still provisional and subject to further measurement period adjustment according to purchase price allocation rules. The impairment charge of $3.4 million on definite-lived intangible assets was recorded within "Loss on impairment" in our consolidated statements of operations. Changes in the gross carrying amount, accumulated amortization, addition and impairment of definite-lived intangible assets from December 31, 2018 through June 30, 2019 were as following: ( in thousands For the Six Months Ended June 30, 2019 Beginning Gross Accumulated Addition Impairment Net Carrying Amount Amortization Amortized intangible assets: Customer relationships $ 6,832 $ (3,098 ) $ 4,898 $ (3,370 ) $ 5,262 Trade names 1,295 (515 ) 1,172 - 1,952 Developed technology 471 (471 ) - - - Non-contractual customer relationships 433 (433 ) - - - Noncompete agreement 221 (117 ) 728 - 832 Alliance agreement 527 (119 ) - - 408 Others 167 (167 ) - - - Total $ 9,946 $ (4,920 ) $ 6,798 $ (3,370 ) $ 8,454 (in thousands) As of December 31, 2018 Gross Carrying Amount Accumulated Amortization Net Amortized intangible assets Customer relationships $ 6,831 $ (2,375 ) $ 4,456 Trade names 1,295 (318 ) 977 Developed technology 471 (471 ) - Non-contractual customer relationships 433 (433 ) - Noncompete agreements 221 (35 ) 186 Alliance agreement 527 (66 ) 461 Others 167 (167 ) - Total $ 9,945 $ (3,865 ) $ 6,080 Amortization expense related to definite-lived intangible assets totaled $0.5 million and $0.3 million for the three months ended June 30, 2019 and 2018, and $1.1 million and $0.5 million for the six months ended June 30, 2019, and 2018, respectively. The following table shows the estimated amortization expense of the definite-lived intangible assets for the next five years: (in thousands) Years ended December 31: 2019 (remainder) $ 990 2020 1,973 2021 1,470 2022 1,152 2023 868 Thereafter 2,001 Total $ 8,454 Goodwill The Company reviews goodwill for impairment annually as of December 31 and whenever events or changes in circumstances indicate the carrying value of goodwill may not be recoverable. The Company tests goodwill at the reporting unit level. A reporting unit is an operating segment, or one level below an operating segment, as defined by U.S. GAAP. After the acquisition of Hyperspring on November 14, 2014, the Company determined that it had two reporting units, which are the same as our two operating segments: (i) Performance Improvement Solutions; and (ii) Nuclear Industry Training and Consulting (which includes Hyperspring and Absolute). On February 15, 2019, we acquired DP Engineering (as described in Note 4) and preliminarily recorded goodwill and identified intangible assets as part of the acquisition. On February 23, 2019, an unexpected event occurred at one of DP Engineering's significant customers and all pending work for that customer was suspended pending a root cause analysis on February 28, 2019. While that analysis is now complete, and virtually all of the suspended projects have been restarted, the customer has indicated that DP Engineering will be suspended from obtaining new projects. The Company determined that the notice of suspension was a triggering event necessitating a goodwill impairment test. On May 10, 2019, the Company determined that a material impairment had occurred, requiring an assessment for impairment to be completed related to $5.6 million of goodwill recorded in the acquisition. The impairment test was based on income based approach with discounted cash flow method, and market based approach including both guideline public company method and merger and acquisition method. The impairment test results indicated that the current estimated fair value of goodwill recorded from the acquisition of DP Engineering had declined below its initial estimated fair value at the acquisition date. As a result, the Company recognized an impairment charge of $2.1 million to write down the goodwill on DP Engineering. The fair value of goodwill recognized from the acquisition of DP Engineering is still provisional and subject to further measurement period adjustment based upon the preliminary purchase price allocation. The Company determined that the impact of the suspension of obtaining new contracts from that customer resulted in a material downward revision to DP Engineering's revenue and profitability forecasts when compared to the acquisition date valuation. The impairment charge on goodwill was recorded within "Loss on impairment" in our consolidated statements of operations. Changes in the net carrying amount of goodwill from December 31, 2018 through June 30, 2019 were due to the acquisition of DP Engineering, and were comprised of the following items: ( in thousands Performance Improvement Solutions Nuclear Industry Training and Consulting Total Balance, January 1, 2019 $ 4,739 $ 8,431 $ 13,170 Acquisition 5,633 - 5,633 Dispositions - - - Goodwill impairment loss (2,094 ) - (2,094 ) Balance, June 30, 2019 $ 8,278 $ 8,431 $ 16,709

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2019
Fair Value of Financial Instruments [Abstract]
Fair Value of Financial Instruments	9. Fair Value of Financial Instruments ASC 820, Fair Value Measurement The levels of the fair value hierarchy established by ASC 820 are: Level 1: inputs are quoted prices, unadjusted, in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 2: inputs are other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. A Level 2 input must be observable for substantially the full term of the asset or liability. The Monte Carlo model was used to calculate the fair value of level 2 instrument liability award. The inputs used are current stock price, expected term, risk-free rate, number of trials, volatility and interest rates. Level 3: inputs are unobservable and reflect the reporting entity’s own assumptions about the assumptions that market participants would use in pricing the asset or liability. The contingent consideration was based on EBITDA. At June 30, 2019, and December 31, 2018, the Company considers the recorded value of certain of its financial assets and liabilities, which consist primarily of cash equivalents, accounts receivable and accounts payable, to approximate fair value based upon their short-term nature. As of June 30, 2019, the Company had three standby letters of credit totaling $0.9 million which represent performance bonds on three contracts. For the three and six months ended June 30, 2019, the Company did not have any transfers between fair value Level 1, Level 2 or Level 3. The Company did not hold any non-financial assets or non-financial liabilities subject to fair value measurements on a recurring basis at June 30, 2019. Money market funds at both June 30, 2019 and December 31, 2018 are included in cash and cash equivalents in the respective consolidated balance sheets. The following table presents assets and liabilities measured at fair value at June 30, 2019: (in thousands) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Money market funds $ 575 $ - $ - $ 575 Foreign exchange contracts - 113 - 113 Total assets $ 575 $ 113 $ - $ 688 Liability awards $ - $ (112 ) $ - $ (112 ) Interest rate swap contract - (191 ) - (191 ) Total liabilities $ - $ (303 ) $ - $ (303 ) Money market funds at both June 30, 2019 and December 31, 2018 are included in cash and cash equivalents in the respective consolidated balance sheets. The following table presents assets and liabilities measured at fair value at December 31, 2018: (in thousands) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Money market funds $ 824 $ - $ - $ 824 Foreign exchange contracts - 43 - 43 Total assets $ 824 $ 43 $ - $ 867 Liability awards $ - $ (118 ) $ - $ (118 ) Interest rate swap contract - (103 ) - (103 ) Total liabilities $ - $ (221 ) $ - $ (221 ) The following table provides a roll-forward of the fair value of the contingent consideration categorized as Level 3 for the six months ended June 30, 2019: (in thousands) Balance, January 1, 2019 $ - Issuance of contingent consideration in connection with acquisitions 1,200 Change in fair value (1,200 ) Balance, June 30, 2019 $ -

Derivative Instruments

Derivative Instruments	6 Months Ended
	Jun. 30, 2019
Derivative Instruments [Abstract]
Derivative Instruments	10. Derivative Instruments In the normal course of business, our operations are exposed to fluctuations in foreign currency values and interest rate changes. We may seek to control a portion of these risks through a risk management program that includes the use of derivative instruments. Foreign Currency Risk Management The Company utilizes forward foreign currency exchange contracts to manage market risks associated with the fluctuations in foreign currency exchange rates and minimize credit exposure by limiting counterparties to nationally recognized financial institutions. As of June 30, 2019, the Company had foreign exchange contracts outstanding of approximately 3.7 million Euro. The contracts expire on various dates through December 2020. At December 31, 2018, the Company had contracts outstanding of approximately 3.2 million Euro at fixed rates. Interest Rate Risk Management As discussed in Note 12, the Company entered into a term loan to finance the acquisition of True North in May 2018 and revised on June 28, 2019. The loan bears interest at adjusted one-month LIBOR plus a margin ranging between 2.00% and 2.75% depending on the overall leverage ratio of the Company. As part of our overall risk management policies, in June 2018, the Company entered into a pay-fixed, receive-floating interest rate swap contract with a notional amount of $9.0 million to reduce the impact associated with interest rate fluctuations . The notional value amortizes monthly in equal amounts based on the 5-year principal repayment terms. The terms of the swap require the Company to pay interest on the basis of a fixed rate of 3.02%, and the Company will receive interest on the basis of one-month USD-LIBOR-BBA-Bloomberg. The Company reports all derivatives at fair value. These contracts are recognized as either assets or liabilities, depending upon the derivative’s fair value. The estimated net fair values of the derivative contracts on the consolidated balance sheets are as follows: June 30, December 31, (in thousands) 2019 2018 Prepaid expenses and other current assets Foreign exchange contracts $ 113 $ 43 Total asset derivatives 113 43 Other liabilities Interest rate swaps (191 ) (103 ) Total liability derivatives (191 ) (103 ) Net fair value $ (78 ) $ (60 ) The Company has not designated the derivative contracts as hedges. The changes in the fair value of the derivative contracts are included in gain (loss) on derivative instruments, net, in the consolidated statements of operations. The foreign currency denominated contract receivables, billings in excess of revenue earned, and subcontractor accruals that are related to the outstanding foreign exchange contracts are remeasured at the end of each period into the functional currency using the current exchange rate at the end of the period. The gain or loss resulting from such remeasurement is also included in gain (loss) on derivative instruments, net, in the consolidated statements of operations. For the three and six months ended June 30, 2019 and 2018, the Company recognized a net (loss) gain on its derivative instruments as outlined below: Three months ended June 30, Six months ended June 30, (in thousands) 2019 2018 2019 2018 Interest rate swap - change in fair value $ (62 ) $ (11 ) $ (88 ) $ (11 ) Foreign exchange contracts-change in fair value (32 ) (46 ) 70 (164 ) Remeasurement of related contract receivables, billings in excess of revenue earned, and subcontractor accruals (7 ) (34 ) 10 (72 ) Loss on derivative instruments, net $ (101 ) $ (91 ) $ (8 ) $ (247 )

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2019
Stock-Based Compensation [Abstract]
Stock-Based Compensation	11. Stock-Based Compensation The Company recognizes compensation expense for all equity-based compensation awards issued to employees and directors that are expected to vest. Compensation cost is based on the fair value of awards as of the grant date. The Company recognized $0.5 million and $0.4 million of stock-based compensation expense related to equity awards for the three months ended June 30, 2019 and 2018, respectively, and recognized $1.1 million and $1.0 million of stock-based compensation expense related to equity awards for the six months ended June 30, 2019 and 2018, respectively, under the fair value method. In addition to the equity-based compensation expense recognized, the Company also recognized $(60,000) and $28,000 of stock-based compensation related to the change in the fair value of cash-settled restricted stock units (RSUs) during the three months ended June 30, 2019 and 2018, respectively. During the six months ended June 30, 2019 and 2018, the Company recorded net reduction of $33,000 and $60,000 in the fair value of cash-settled RSUs, respectively. During the three and six months ended June 30, 2019, the Company granted approximately 200,000 and 500,000 time-based RSUs with an aggregate fair value of $0.6 million and $1.4 million, respectively. For the three and six months ended June 30, 2018, the Company granted approximately 200,000 and 400,000 time-based RSUs with an aggregate fair value of $0.6 million and $1.3 million, respectively. A portion of the time-based RSUs vest quarterly in equal amounts over the course of eight quarters, a portion vest one year after grant and the remainder vest annually in equal amounts over the course of three years. The fair value of the time-based RSUs is expensed ratably over the requisite service period, which ranges from one year to three years. The Company's 1995 long-term incentive program ("LTIP") provides for the issuance of performance-vesting and time-vesting restricted stock units to certain executives and other Company employees. Vesting of the performance-vesting restricted stock units (PRSU's) is contingent upon the employee's continued employment and the Company's achievement of certain performance goals during designated performance period as established by the Compensation Committee of the Board of Directors. We recognize compensation expense, net of estimated forfeitures, for PRSU's on a straight-line basis over the performance period based on the probable outcome of achievement of the financial targets. At the end of each reporting period, we estimate the number of PRSUs that are expected to vest, based on the probability and extent to which the performance goals will be met, and take into account these estimates when calculating the expense for the period. If the number of shares expected to be earned changes during the performance period, we make a cumulative adjustment to compensation expense based on the revised number of shares expected to be earned. During six months ended June 30, 2019, the Company granted approximately 350,000 performance-based RSUs to employees with an aggregate fair value of $0.9 million. During three months ended June 30, 2019, the Company did not grant any performance-based RSUs. During the three and six months ended June 30, 2018, the Company did not grant any performance-based RSUs. The Company did not grant any stock options for the three and six months ended June 30, 2019 and 2018.

Debt

Debt	6 Months Ended
	Jun. 30, 2019
Debt [Abstract]
Debt	12. Debt The Company entered into a 3-year, $5.0 million revolving line of credit facility ("RLOC") with Citizens Bank National Association (the Bank) on December 29, 2016 to fund general working capital needs and provide funding for acquisitions. On May 11, 2018, GSE entered into an Amended and Restated Credit and Security Agreement (the Credit Agreement) with the Bank, amending and restating the Company's existing Credit and Security Agreement with the Bank, which included a $5.0 million asset-based revolving credit facility between the Company and the Bank, to now include (a) a $5.0 million revolving credit facility not subject to a borrowing base, including a letter of credit sub-facility, and (b) a $25.0 million delayed draw term loan facility available to be drawn upon for up to 18 months and to finance certain permitted acquisitions by the Company. The credit facilities mature in five years and bear interest at one-month LIBOR plus a margin that varies depending on the overall leverage ratio of the Company and its subsidiaries. Revolving loans are interest-only with principal due at maturity, while term loans require monthly payments of principal and interest based on an amortization schedule. The Company's obligations under the Credit Agreement are guaranteed by the Company's wholly owned subsidiaries. The credit facilities are secured by liens on all assets of the Company. Attendant to the Company's acquisition of DP Engineering, the Company and the Bank entered into a Third Amendment and Reaffirmation Agreement and a Fourth Amendment and Reaffirmation Agreement on February 15, 2019 and March 20, 2019, respectively. On June 28, 2019, the Company and the Bank entered into a Fifth Amendment and Reaffirmation Agreement, which changed fixed charge coverage ratio from 1.25, to four different ratios ranging from 1.05 to 1.25 among different time periods and changed leverage ratio to: (i) 2.75 to 1.00 for the periods ending on June 30, 2019, September 30, 2019, December 31, 2019 and March 31, 2020; (ii) 2.50 to 1.00 for the periods ending June 30, 2020 and September 30, 2020; (iii) 2.25 to 1.00 for the periods ending December 31 st st th th RLOC We intend to continue using the RLOC for short-term working capital needs and the issuance of letters of credit in connection with business operations. Letter of credit issuance fees range between 1.25% and 2% depending on the Company’s overall leverage ratio, and the Company pays an unused RLOC fee quarterly based on the average daily unused balance. At June 30, 2019, there were no outstanding borrowings under the RLOC and three letters of credit totaling $0.9 million. The amount available at June 30, 2019, after consideration of letters of credit was approximately $4.1 million. Term Loan As discussed in Note 4, we acquired DP Engineering on February 15, 2019 for approximately $13.5 million in cash. The purchase price was subject to customary pre- and post-closing working capital adjustments plus an additional earn-out amount not to exceed $5.0 million potentially payable in 2020 and 2021. We drew down $14.3 million to finance the acquisition of DP Engineering. The loan bears interest at the adjusted one-month LIBOR plus a margin ranging between 2% and 2.75% depending on the overall leverage ratio of the Company and matures in five years. There were no debt issuance costs and loan origination fees associated with the loan related for our acquisition of DP Engineering. As discussed in Note 4, we also acquired True North on May 11, 2018 for approximately $9.75 million in cash. The purchase price was subject to customary pre and post-closing working capital adjustments. We drew down $10.3 million to finance the acquisition of True North, $0.5 million of which was repaid to the Bank on the same day. The loan bears interest at the adjusted one-month LIBOR plus a margin ranging between 2% and 2.75% depending on the overall leverage ratio of the Company and matures in five years. We also incurred $70,000 debt issuance costs and $75,000 loan origination fees related to the Credit Agreement. Debt issuance costs and loan origination fees are reported as a direct deduction from the carrying amount of the loan and are amortized over the term of the loan using the effective interest method. The outstanding long-term debt under the delayed draw term loan facility was as follows: (in thousands) June 30, 2019 December 31, 2018 Long-term debt, net of discount $ 20,934 $ 8,512 Less: current portion of long-term debt (4,773 ) 1,902 Long-term debt, less current portion $ 16,161 $ 6,610 The Credit Agreement contains customary covenants and restrictions typical for a financing of this type that, among other things, require the Company to satisfy certain financial covenants and restrict the Company's ability to incur additional debt, pay dividends and make distributions, make certain investments and acquisitions, repurchase its stock and prepay certain indebtedness, create liens, enter into agreements with affiliates, modify the nature of its business, enter into sale-leaseback transactions, transfer and sell material assets and merge or consolidate. Non-compliance with one or more of the covenants and restrictions after any applicable grace period could result in the obligations under the Credit Agreement becoming immediately due and payable and termination of the credit facilities. In addition to non-compliance with covenants and restrictions, the Credit Agreement also contains other customary events of default. If an event of default under the Credit Agreement occurs and is continuing, then the Bank may declare the obligations under the Credit Agreement to be immediately due and payable and may terminate the credit facilities. At June 30, 2019, the Company was in compliance with its financial covenants.

Product Warranty

Product Warranty	6 Months Ended
	Jun. 30, 2019
Product Warranty [Abstract]
Product Warranty	13. Product Warranty The Company accrues for estimated warranty costs at the time the related revenue is recognized based on historical experience and projected claims. The Company's SDB contracts generally provide a one-year base warranty on the systems. The portion of the warranty provision expected to be incurred within 12 months is classified as current within accrued warranty and totals $1.1 million, while the remaining $0.6 million is classified as long-term within other liabilities. The activity in the accrued warranty accounts is as follows: (in thousands) Balance, January 1, 2019 $ 1,621 Current period provision 175 Current period claims (58 ) Currency adjustment (1 ) Balance at June 30, 2019 $ 1,737

Revenue

Revenue	6 Months Ended
	Jun. 30, 2019
Revenue [Abstract]
Revenue	14. Revenue We account for revenue in accordance with ASC 606, Revenue from Contracts with Customers Revenue from Contracts with Customers We generate revenue primarily through three broad revenue streams: 1) System Design and Build ("SDB"), 2) Software, and 3) Training and Consulting Services. We recognize revenue from SDB and software contracts mainly through the Performance Improvement Solutions segment and the training and consulting service contracts through both the Performance Improvement Solutions segment and Nuclear Industry Training and Consulting segment. The following table represents a disaggregation of revenue by type of goods or services for the three and six months ended June 30, 2019 and 2018, along with the reportable segment for each category: ( in thousands Three months ended June 30, Six months ended June 30, 2019 2018 2019 2018 Performance Improvement Solutions segment System Design and Build $ 5,595 $ 7,300 $ 12,037 $ 14,795 Software 635 546 1,384 1,415 Training and Consulting Services 6,780 3,018 11,779 4,555 Nuclear Industry Training and Consulting segment Training and Consulting Services 10,448 13,834 20,452 26,828 Total revenue $ 23,458 $ 24,698 $ 45,652 $ 47,593 SDB contracts are typically fixed-priced, and we receive payments based on a billing schedule as established in our contracts. The transaction price for software contracts is generally fixed. Fees for software are normally due in advance of or shortly after delivery of the software. Fees for PCS are normally paid in advance of the service period. For Training and Consulting Services, the customers are generally billed on a regular basis, such as weekly, biweekly or monthly, for services provided. Contract liability, which we classify as billing in excess of revenue earned, relates to payments received in advance of performance under the contract. Contract liabilities are recognized as revenue as performance obligations are satisfied. The following table reflects the revenue recognized in the reporting periods that were included in the contract liabilities from contracts with customers: ( in thousands Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Revenue recognized in the period from amounts included in Billings in Excess at the beginning of the period $ 2,813 $ 2,738 $ 7,853 $ 7,954 For an SDB contract, we generally have two main performance obligations: the training simulator build and post contract support ("PCS"). The training simulator build generally includes hardware, software, and labor. We recognize the training simulator build revenue over the construction and installation period using the cost-to-cost input method. In applying the cost-to-cost input method, we use the actual costs incurred to date relative to the total estimated costs to measure the work progress toward the completion of the performance obligation and recognize revenue accordingly. Estimated contract costs are reviewed and revised periodically as the work progresses, and the cumulative effect of any change in estimates is recognized in the period in which the change is identified. Estimated losses are recognized in the period such losses are identified. Uncertainties inherent in the performance of contracts include labor availability and productivity, material costs, change order scope and pricing, software modification and customer acceptance issues. The reliability of these cost estimates is critical to the Company's revenue recognition as a significant change in the estimates can cause the Company's revenue and related margins to change significantly from the amounts estimated in the early stages of the project. For the three and six months ended June 30, 2019, the Company recognized revenue of $1.1 million and $1.9 million related to performance obligations satisfied in previous periods, respectively. As of June 30, 2019, the aggregate amount of transaction price allocated to the remaining performance obligations of SDB, software and fixed-price training and consulting services contracts is $27.2 million. The Company will recognize the revenue as the performance obligations are satisfied, which is expected to occur over the next 12 months.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2019
Income Taxes [Abstract]
Income Taxes	15. Income Taxes The following table presents the provision (benefit) for income taxes and the effective tax rates: (in thousands) Three months ended June 30, Six months ended June 30, 2019 2018 2019 2018 Provision (benefit) for income taxes $ 406 $ (449 ) $ (1,442 ) $ (190 ) Effective tax rate 144.5 % (84.4 )% 24.8 % 27.0 % The Company's income tax provision (benefit) for interim periods is determined using an estimate of its annual effective tax rate, adjusted for discrete items arising in that quarter. Total income tax expense for the six months ended June 30, 2019 is comprised mainly of the tax impact of the loss on impairment, federal, foreign, and state tax expense. Total income tax expense for the six months ended June 30, 2018 is comprised mainly of federal, foreign, and state tax expense. Our effective tax rates were 144.5% and 24.8% for the three and six months ended June 30, 2019, respectively. For the three months ended June 30, 2019, the difference between our effective tax rate of 144.5% and the U.S. statutory federal income tax rate of 21% was primarily due to permanent differences, accruals related to uncertain tax positions for certain U.S. and foreign tax contingencies, a change in valuation allowance in our China subsidiary, discrete item adjustments for the U.S. and foreign taxes, and the excess book deduction related to stock options and restricted stock units that were exercised or vested during the quarter. For the six months ended June 30, 2019, the difference between the effective tax rate of 24.8% and the U.S. statutory federal income tax rate of 21% was primarily due to permanent differences, accruals related to uncertain tax positions for certain foreign tax contingencies, and discrete item adjustments, including the tax impact of the loss on impairment. Because of its net operating loss carryforwards, the Company is subject to U.S. federal and state income tax examinations from the year 2000 and forward. The Company is subject to foreign tax examinations by tax authorities for years 2011 forward for Sweden, 2015 forward for China, 2015 forward for India, and 2016 forward for the UK. An uncertain tax position taken or expected to be taken in a tax return is recognized in the consolidated financial statements when it is more likely than not ( i.e. The Company recognizes deferred tax assets to the extent that it is believed that these assets are more likely than not to be realized. The Company has evaluated all positive and negative evidence and determined that it will continue to assess a full valuation allowance on its India, Swedish and U.K. net deferred assets as of June 30, 2019. The Company has determined that it will continue to assess a valuation allowance on its China deferred tax asset related to transfer pricing. The Company has determined that it is more likely than not that it will realize the benefits of its deferred taxes in the U.S.

Leases

Leases	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Leases	16 . Leases The Company maintains leases of office facilities and equipment. Leases generally have remaining terms of one year to six years, whereas leases with an initial term of twelve months or less are not recorded on the Consolidated Balance Sheets. The Company recognizes lease expense for minimum lease payments on a straight-line basis over the term of the lease. Certain leases include options to renew or terminate. Renewal options are exercisable per the discretion of the Company and vary based on the nature of each lease, with renewal periods generally ranging from one year to five years. The term of the lease includes renewal periods only if the Company is reasonably certain that it will exercise the renewal option. When determining if a renewal option is reasonably certain of being exercised, the Company considers several factors, including but not limited to, the cost of moving to another location, the cost of disruption to operations, whether the purpose or location of the leased asset is unique and the contractual terms associated with extending the lease. Upon the adoption of the new lease standard ASU 2016-02, on January 1, 2019, the Company elected the package of practical expedients permitted under the transition guidance within the amended guidance, which among other things, allowed registrants to carry forward historical lease classification. Accordingly, all existing leases that were classified as operating leases by the Company historically, were classified as operating leases. Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. The operating lease ROU assets represent the lease liability, plus any lease payments made at or before the commencement date, less any lease incentives received. The Company's real estate leases, which are comprised primarily of office spaces, represent a majority of the lease liability. The majority of our lease payments are fixed, although an immaterial portion of payments are variable in nature. Variable lease payments vary based on changes in facts and circumstances related to the use of the ROU and are recorded as incurred. The Company uses an incremental borrowing rate based on rates available at commencement in determining the present value of future payments. The Company has lease agreements with lease and non-lease components, which are accounted for as a single lease component. The Company applies a portfolio approach to effectively account for the operating lease ROU assets and liabilities. Lease contracts are evaluated at inception to determine whether they contain a lease, where the Company obtains the right to control an identified asset. The following table summarizes the classification of operating ROU assets and lease liabilities on the consolidated balance sheets ( in thousands Operating Leases Classification June 30, 2019 Leased Assets Operating lease - right of use assets Long term assets $ 4,071 Lease Liabilities Operating lease liabilities - Current Other current liabilities 1,078 Operating lease liabilities Long term liabilities 3,439 $ 4,517 The Company has entered into a sublease with a tenant to rent out 3,822 of square feet from the lease at its Sykesville office on April 1, 2017, with the exact same consideration as on the head lease for our principal executive office located at 1332 Londontown Blvd, Suite 200, Sykesville, Maryland. The sublease does not relieve the Company of its primary lease obligation. The lessor agreement was an operating lease historically . The table below summarizes the lease income and expenses recorded in the consolidated statement of operations incurred during the three and six months ended June 30, 2019, ( in thousands Lease Cost Classification Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Operating lease cost (1) Selling, general and administrative expenses $ 317 $ 545 Short-term leases costs (2) Selling, general and administrative expenses 35 73 Sublease income (3) Selling, general and administrative expenses (16 ) (32 ) Net lease cost $ 336 $ 586 (1) (2) (3) The future minimum lease payments under non-cancellable operating leases are reflected below. This table also reflects the reconciliation of the undiscounted cash flows to the discounted operating lease liabilities as recognized at June 30, 2019 consolidated balance sheets ( in thousands Operating Leases 2019 $ 654 2020 1,246 2021 1,216 2022 1,156 2023 622 After 2023 107 Total lease payments $ 5,001 Less: Interest 484 Present value of lease payments $ 4,517 The Company has calculated the weighted-average remaining lease term, presented in years below, and the weighted-average discount rate for our operating leases. As noted in our lease accounting policy, the Company uses the incremental borrowing rate as the lease discount rate. Lease Term and Discount Rate Six Months Ended June 30, 2019 Weighted-average remaining lease term (years) Operating leases 4.22 Weighted-average discount rate Operating leases 5 % The table below sets out the classification of lease payments in the consolidated statement of cash flows. The right-of-use assets obtained in exchange for operating lease liabilities represent new operating leases obtained through business combination during the six months ended June 30, 2019. (in thousands) Other Information Six Months Ended June 30, 2019 - Operating cash flows used in operating leases $ 567 Cash paid for amounts included in measurement of liabilities 567 Right-of-use assets obtained in exchange for new operating liabilities $ 1,777

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2019
Segment Information [Abstract]
Segment Information	17. Segment Information The Company has two reportable business segments. The Performance segment provides simulation, training and engineering products and services delivered across the breadth of industries we serve. Solutions include simulation for both training and engineering applications. Example engineering services include, but not limited to, plant design verification and validation, thermal performance evaluation and optimization programs, and engineering programs for plants for ASME code and ASME Section XI. The Company provides these services through GSE, True North and DP Engineering across all market segments. Example training applications include turnkey and custom training services. Contract terms are typically less than two years. The NITC segment provides specialized workforce solutions primarily to the nuclear industry, working at clients' facilities. This business is managed through our Hyperspring and Absolute subsidiaries. The business model, management focus, margins and other factors clearly separate this business line from the rest of the GSE product and service portfolio. On February 15, 2019, through our wholly-owned subsidiary GSE Performance Solutions, Inc., the Company entered into the DP Engineering Purchase Agreement, to purchase 100% of the membership interests in DP Engineering. DP Engineering is a provider of value-added technical engineering solutions and consulting services to nuclear power plants with an emphasis on preparation and implementation of design modifications during plant outages. For reporting purposes, DP Engineering is included in our Performance segment due to similarities in services provided including engineering solutions and implementation of design modifications to nuclear power sector. On May 11, 2018, GSE, through our wholly-owned subsidiary GSE Performance Solutions, Inc., entered into the True North Purchase Agreement to purchase 100% of the membership interests in True North. True North is a provider of technical engineering solutions to nuclear and fossil fuel power plants with an emphasis on regulatory-driven ASME code programs. The acquisition of True North is expected to broaden our engineering services offering, expand our relationships with several of the largest nuclear energy providers in the United States, and add a highly specialized, complimentary talent pool to our employee base. For reporting purposes, True North is included in our Performance segment due to similarities in services provided including technical engineering solutions to the nuclear and fossil fuel power sector. Due to the impairment described in Note 8 related to DP Engineering, we recognized charges totaling $5.5 million related to the impairment of certain definite-lived intangible assets and goodwill in our Performance segment. Our primary measure of segment performance as shown in the table below excluded loss on impairment of intangible and goodwill, and the change in fair value of contingent consideration, net, which we do not believe are representative of the ongoing operations of the Performance segment. Excluding this discrete item from our segment measure of performance allows for better period over period comparison. The following table sets forth the revenue and operating results attributable to each reportable segment and includes a reconciliation of segment revenue to consolidated revenue and operating results to consolidated income before income taxes. Inter-segment revenue is eliminated in consolidation and is not significant: (in thousands) Three months ended June 30, Six months ended June 30, 2019 2018 2019 2018 Revenue: Performance Improvement Solutions $ 13,010 $ 10,864 $ 25,200 $ 20,765 Nuclear Industry Training and Consulting 10,448 13,834 20,452 26,828 23,458 24,698 45,652 47,593 Operating loss: Performance Improvement Solutions 1,010 619 208 (171 ) Nuclear Industry Training and Consulting (293 ) 61 (1,218 ) (277 ) Loss on impairment - - (5,464 ) - Change in fair value of contingent consideration, net - - 1,200 - Operating income (loss) 717 680 (5,274 ) (448 ) Interest (expense), net (316 ) (61 ) (524 ) (39 ) Loss on derivative instruments, net (101 ) (91 ) (8 ) (247 ) Other (expense) income, net (19 ) 4 3 29 Income (loss) before income taxes $ 281 $ 532 $ (5,803 ) $ (705 )

Non-consolidated Variable Inter

Non-consolidated Variable Interest Entity	6 Months Ended
	Jun. 30, 2019
Non-consolidated Variable Interest Entity [Abstract]
Non-consolidated Variable Interest Entity	18. Non-consolidated Variable Interest Entity The Company, through its wholly owned subsidiary DP Engineering, effectively holds a 48% membership interest in DP-NXA Consultants LLC ("DP-NXA"). DP-NXA was established to provide industrial services that include civil, structural, architectural, electrical, fire protection, plumbing, mechanical consulting engineering services to customers. DP-NXA sub-contracts their work to its two owners, NXA Consultants LLC ("NXA"), which owns 52% of the entity, and DP Engineering. DP Engineering and NXA contributed $48 and $52, respectively, for 48% and 52% interest in DP-NXA. DP Engineering recorded the contributed cash as an equity investment. The Company evaluated the nature of DP Engineering's investment in DP-NXA and determined that DP-NXA is a variable interest entity (“VIE”). Since the Company does not have the power to direct activities that most significantly impact DP-NXA, it cannot be DP-NXA’s primary beneficiary. Furthermore, the Company concluded that it did not hold a controlling financial interest in DP-NXA since NXA, the VIE's majority owner, makes all operation and business decisions. The Company accounts for its investment in DP-NXA using the equity method of accounting due to the fact the Company exerts significant influence with its 48% of membership interest, but does not control the financial and operating decisions. The Company's maximum exposure to any losses incurred by DP-NXA is limited to its investment. As of June 30, 2019, the Company has not made any additional contributions to DP-NXA and believes its maximum exposure to any losses incurred by DP-NXA was not material. As of June 30, 2019, the Company does not have existing guarantee with or to DP-NXA, or any third-party work contracted with it. For the three and six months ended June 30, 2019, the carrying value of the investment in DP-NXA is zero. We do not have any investment income or loss from DP-NXA for the three and six months ended June 30, 2019. The following table presents the carrying amount and classification of the assets related to the Company’s variable interests in non-consolidated VIE and the maximum exposure to loss at June 30, 2019. ( In thousands June 30, 2019 Assets Cash: Checking account $ 184 Total assets $ 184 Liabilities Credit card and other payables 184 Total liabilities 184 Total net assets $ - Maximum exposure to loss $ -

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2019
Summary of Significant Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The consolidated interim financial statements included herein have been prepared by GSE and are unaudited. In the opinion of the Company's management, all adjustments and reclassifications of a normal and recurring nature necessary to present fairly the financial position, results of operations and cash flows for the periods presented have been made. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") have been condensed or omitted. The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. The accompanying balance sheet data for the year ended December 31, 2018 was derived from our audited financial statements, but it does not include all disclosures required by U.S. GAAP. The results of operations for interim periods are not necessarily an indication of the results for the full year. These consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2018, filed with the Securities and Exchange Commission on March 27, 2019. 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 and disclosure of contingent assets and liabilities at the date of the financial statements as well as reported amounts of revenues and expenses during the reporting period. The Company’s most significant estimates relate to revenue recognition on contracts with customers, allowance for doubtful accounts, product warranties, valuation of goodwill and intangible assets acquired including impairment test, valuation of long-lived assets to be disposed of, valuation of contingent consideration issued in business acquisitions, valuation of stock-based compensation awards, and the recoverability of deferred tax assets. Actual results could differ from these estimates and those differences could be material.

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements (Policies)	6 Months Ended
	Jun. 30, 2019
Recent Accounting Pronouncements [Abstract]
Recent Accounting Pronouncements	Accounting pronouncements recently adopted In February 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Updates ("ASU") No. 2016-02, Leases (Topic 842), The Company adopted the new standard using the modified retrospective approach effective on January 1, 2019. The Company's adoption included lease codification improvements that were issued by the FASB through June 2019. The FASB made available several practical expedients in adopting the new lease accounting guidance. The Company elected the package of practical expedients permitted under the transition guidance within the amended guidance, which among other things, allowed registrants to carry forward historical lease classification. The Company elected the practical expedient that allows the combination of both lease and non-lease components as a single component and account for it as a lease for all classes of underlying assets. The Company elected not to apply the new guidance to short term leases with an initial term of twelve months or less. The Company recognizes those lease payments in the consolidated statements of operations on a straight-line basis over the lease term. The Company elected to use a single discount rate for a portfolio of leases with reasonably similar characteristics. The most significant impact was the recognition of ROU assets and related lease liabilities for operating leases on the consolidated balance sheets. The Company recognized ROU assets and related lease liabilities of $2.7 million and $3.0 million respectively, related to operating lease commitments, as of January 1, 2019. The operating lease ROU asset represents the lease liability, plus any lease payments made at or before the commencement date, less any lease incentives received. The new guidance did not have a material impact on the Company's cash flows or results of operations. See Note 16 of the consolidated financial statements. Accounting pronouncements not yet adopted In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses In January 2017, the FASB issued ASU 2017-04, Simplifying the Test for Goodwill Impairment

Basic and Diluted (Loss) Inco_2

Basic and Diluted (Loss) Income per Common Share (Tables)	6 Months Ended
	Jun. 30, 2019
Basic and Diluted (Loss) Income per Common Share [Abstract]
Weighted Average Number of Common Shares and Common Share Equivalents Used in the Determination of Basic and Diluted Loss Per Share	The number of common shares and common share equivalents used in the determination of basic and diluted loss per share were as follows: (in thousands, except for share amounts) Three months ended Six months ended June 30, June 30, 2019 2018 2019 2018 Numerator: Net (loss) income $ (125 ) $ 981 $ (4,361 ) $ (515 ) Denominator: Weighted-average shares outstanding for basic loss per share 20,006,492 19,651,441 19,979,018 19,580,046 Effect of dilutive securities: Stock options and restricted stock units - 377,682 - - Adjusted weighted-average shares outstanding and assumed conversions for diluted loss per share 20,006,492 20,029,123 19,979,018 19,580,046 Shares related to dilutive securities excluded because inclusion would be anti-dilutive 263,241 374,833 175,848 714,821

Acquisitions (Tables)

Acquisitions (Tables)	6 Months Ended
	Jun. 30, 2019
Business Acquisition [Abstract]
Business Acquisition, Pro Forma Information	Unaudited Pro Forma Financial Information The unaudited pro forma financial information in the table below summarizes the combined results of operations for GSE, True North and DP Engineering as if the business combinations had occurred on January 1, 2018. Three months ended June 30, Six months ended June 30, 2019 2018 2019 2018 ( unaudited and in thousands Revenue $ 23,458 $ 31,664 $ 48,636 $ 59,577 Net income (loss) 77 1,331 (4,250 ) (173 )
DP Engineering Ltd, CO. [Member]
Business Acquisition [Abstract]
Adjusted Purchase Price Consideration and Fair Value Adjustments	The following table summarizes the calculation of adjusted purchase price as of the acquisition date (in thousands): Base purchase price per agreement $ 13,500 Pre closing working capital adjustment 155 Fair value of contingent consideration 1,200 Total purchase price $ 14,855
Consideration Paid For Assets Acquired and Liabilities Assumed	The following table summarizes the consideration paid to acquire DP Engineering and the preliminary fair value of the assets acquired and liabilities assumed at the date of the transaction. Due to the recent completion of the acquisition, the Company recorded the assets acquired and liabilities assumed at their preliminary estimated fair value. As of June 30, 2019, the Company had not finalized the determination of the fair value allocated to various assets and liabilities, including, but not limited to, contract receivables, prepaid expenses and other current assets, intangible assets, accounts payable, accrued expenses, contingent consideration, accrued compensation and the residual amount allocated to goodwill. The following amounts except for cash are all reflected in the consolidated statement of cash flows within the "Acquisition of DP Engineering, net of cash acquired" line caption. ( in thousands Total purchase price $ 14,855 Purchase price allocation: Cash 134 Contract receivables 2,934 Prepaid expenses and other current assets 209 Property, and equipment, net 210 Intangible assets 6,798 Other assets 1,806 Accounts payable and accrued expenses (1,375 ) Other liabilities (1,494 ) Total identifiable net assets 9,222 Goodwill 5,633 Net assets acquired $ 14,855
Fair Value of Intangible Assets Acquired and Related Weighted Average Amortization Period	The following table summarizes the fair value of intangible assets acquired at the date of acquisition and the related weighted average amortization period: Intangible Assets Weighted average amortization period Fair Value (in years) (in thousands) Customer relationships 15 $ 4,898 Tradename 10 1,172 Non-compete agreements 5 728 Total $ 6,798 DP Engineering contributed revenue of $4.3 million to GSE for the period from February 15, 2019 to June 30, 2019.
True North Consulting, LLC [Member]
Business Acquisition [Abstract]
Consideration Paid For Assets Acquired and Liabilities Assumed	The following table summarizes the consideration paid to acquire True North and the preliminary fair value of the assets acquired and liabilities assumed at the date of the transaction. The Company recorded the assets acquired and liabilities assumed at their preliminary estimated fair value. As of June 30, 2019, the Company had finalized the determination of the fair value allocated to various assets and liabilities, including, but not limited to, contract receivables, prepaid expenses and other current assets, intangible assets, accounts payable, accrued expenses, accrued compensation and the residual amount allocated to goodwill. ( in thousands Total purchase price $ 9,915 Purchase price allocation: Cash 306 Contract receivables 1,870 Prepaid expenses and other current assets 8 Property, and equipment, net 1 Intangible assets 5,088 Accounts payable, accrued expenses (1,744 ) Accrued compensation (353 ) Total identifiable net assets 5,176 Goodwill 4,739 Net assets acquired $ 9,915
Fair Value of Intangible Assets Acquired and Related Weighted Average Amortization Period	The following table summarizes the fair value of intangible assets acquired at the date of acquisition and the related weighted average amortization period: Intangible Assets Weighted average amortization period Fair Value (in years) (in thousands) Customer relationships 15 $ 3,758 Tradename 10 582 Non-compete agreements 4 221 Alliance agreements 5 527 Total $ 5,088

Contract Receivables (Tables)

Contract Receivables (Tables)	6 Months Ended
	Jun. 30, 2019
Contract Receivables [Abstract]
Contract Receivables	The components of contract receivables are as follows: (in thousands) June 30, December 31, 2019 2018 Billed receivables $ 10,816 $ 15,998 Unbilled receivables 8,675 5,506 Allowance for doubtful accounts (426 ) (427 ) Total contract receivables, net $ 19,065 $ 21,077

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2019
Goodwill and Intangible Assets [Abstract]
Change in Net Carrying Amount of Goodwill	Changes in the net carrying amount of goodwill from December 31, 2018 through June 30, 2019 were due to the acquisition of DP Engineering, and were comprised of the following items: ( in thousands Performance Improvement Solutions Nuclear Industry Training and Consulting Total Balance, January 1, 2019 $ 4,739 $ 8,431 $ 13,170 Acquisition 5,633 - 5,633 Dispositions - - - Goodwill impairment loss (2,094 ) - (2,094 ) Balance, June 30, 2019 $ 8,278 $ 8,431 $ 16,709

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2019
Fair Value of Financial Instruments [Abstract]
Assets and Liabilities Measured at Fair Value	Money market funds at both June 30, 2019 and December 31, 2018 are included in cash and cash equivalents in the respective consolidated balance sheets. The following table presents assets and liabilities measured at fair value at June 30, 2019: (in thousands) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Money market funds $ 575 $ - $ - $ 575 Foreign exchange contracts - 113 - 113 Total assets $ 575 $ 113 $ - $ 688 Liability awards $ - $ (112 ) $ - $ (112 ) Interest rate swap contract - (191 ) - (191 ) Total liabilities $ - $ (303 ) $ - $ (303 ) Money market funds at both June 30, 2019 and December 31, 2018 are included in cash and cash equivalents in the respective consolidated balance sheets. The following table presents assets and liabilities measured at fair value at December 31, 2018: (in thousands) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Money market funds $ 824 $ - $ - $ 824 Foreign exchange contracts - 43 - 43 Total assets $ 824 $ 43 $ - $ 867 Liability awards $ - $ (118 ) $ - $ (118 ) Interest rate swap contract - (103 ) - (103 ) Total liabilities $ - $ (221 ) $ - $ (221 )
Roll-Forward of the Fair Value of the Contingent Consideration	The following table provides a roll-forward of the fair value of the contingent consideration categorized as Level 3 for the six months ended June 30, 2019: (in thousands) Balance, January 1, 2019 $ - Issuance of contingent consideration in connection with acquisitions 1,200 Change in fair value (1,200 ) Balance, June 30, 2019 $ -

Derivative Instruments (Tables)

Derivative Instruments (Tables)	6 Months Ended
	Jun. 30, 2019
Derivative Instruments [Abstract]
Estimated Fair Value of the Contracts in the Consolidated Balance Sheets	The Company reports all derivatives at fair value. These contracts are recognized as either assets or liabilities, depending upon the derivative’s fair value. The estimated net fair values of the derivative contracts on the consolidated balance sheets are as follows: June 30, December 31, (in thousands) 2019 2018 Prepaid expenses and other current assets Foreign exchange contracts $ 113 $ 43 Total asset derivatives 113 43 Other liabilities Interest rate swaps (191 ) (103 ) Total liability derivatives (191 ) (103 ) Net fair value $ (78 ) $ (60 )
Net (Loss) Gain on Derivative Instruments	For the three and six months ended June 30, 2019 and 2018, the Company recognized a net (loss) gain on its derivative instruments as outlined below: Three months ended June 30, Six months ended June 30, (in thousands) 2019 2018 2019 2018 Interest rate swap - change in fair value $ (62 ) $ (11 ) $ (88 ) $ (11 ) Foreign exchange contracts-change in fair value (32 ) (46 ) 70 (164 ) Remeasurement of related contract receivables, billings in excess of revenue earned, and subcontractor accruals (7 ) (34 ) 10 (72 ) Loss on derivative instruments, net $ (101 ) $ (91 ) $ (8 ) $ (247 )

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jun. 30, 2019
Debt [Abstract]
Outstanding Long-term Debt	The outstanding long-term debt under the delayed draw term loan facility was as follows: (in thousands) June 30, 2019 December 31, 2018 Long-term debt, net of discount $ 20,934 $ 8,512 Less: current portion of long-term debt (4,773 ) 1,902 Long-term debt, less current portion $ 16,161 $ 6,610

Product Warranty (Tables)

Product Warranty (Tables)	6 Months Ended
	Jun. 30, 2019
Product Warranty [Abstract]
Activities in the Accrued Warranty Accounts	The Company accrues for estimated warranty costs at the time the related revenue is recognized based on historical experience and projected claims. The Company's SDB contracts generally provide a one-year base warranty on the systems. The portion of the warranty provision expected to be incurred within 12 months is classified as current within accrued warranty and totals $1.1 million, while the remaining $0.6 million is classified as long-term within other liabilities. The activity in the accrued warranty accounts is as follows: (in thousands) Balance, January 1, 2019 $ 1,621 Current period provision 175 Current period claims (58 ) Currency adjustment (1 ) Balance at June 30, 2019 $ 1,737

Revenue (Tables)

Revenue (Tables)	6 Months Ended
	Jun. 30, 2019
Revenue [Abstract]
Disaggregation of Revenue	The following table represents a disaggregation of revenue by type of goods or services for the three and six months ended June 30, 2019 and 2018, along with the reportable segment for each category: ( in thousands Three months ended June 30, Six months ended June 30, 2019 2018 2019 2018 Performance Improvement Solutions segment System Design and Build $ 5,595 $ 7,300 $ 12,037 $ 14,795 Software 635 546 1,384 1,415 Training and Consulting Services 6,780 3,018 11,779 4,555 Nuclear Industry Training and Consulting segment Training and Consulting Services 10,448 13,834 20,452 26,828 Total revenue $ 23,458 $ 24,698 $ 45,652 $ 47,593
Balance of Contract Liabilities and Revenue Recognized in Reporting Period	The following table reflects the revenue recognized in the reporting periods that were included in the contract liabilities from contracts with customers: ( in thousands Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Revenue recognized in the period from amounts included in Billings in Excess at the beginning of the period $ 2,813 $ 2,738 $ 7,853 $ 7,954

Income Taxes (Tables)

Income Taxes (Tables)	6 Months Ended
	Jun. 30, 2019
Income Taxes [Abstract]
(Benefit) Provision for Income Taxes and Effective Tax Rates	The following table presents the provision (benefit) for income taxes and the effective tax rates: (in thousands) Three months ended June 30, Six months ended June 30, 2019 2018 2019 2018 Provision (benefit) for income taxes $ 406 $ (449 ) $ (1,442 ) $ (190 ) Effective tax rate 144.5 % (84.4 )% 24.8 % 27.0 %

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Classification of Operating ROU Assets and Lease Liabilities on the Balance Sheet	Lease contracts are evaluated at inception to determine whether they contain a lease, where the Company obtains the right to control an identified asset. The following table summarizes the classification of operating ROU assets and lease liabilities on the consolidated balance sheets ( in thousands Operating Leases Classification June 30, 2019 Leased Assets Operating lease - right of use assets Long term assets $ 4,071 Lease Liabilities Operating lease liabilities - Current Other current liabilities 1,078 Operating lease liabilities Long term liabilities 3,439 $ 4,517
Lease Income and Expenses	The table below summarizes the lease income and expenses recorded in the consolidated statement of operations incurred during the three and six months ended June 30, 2019, ( in thousands Lease Cost Classification Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Operating lease cost (1) Selling, general and administrative expenses $ 317 $ 545 Short-term leases costs (2) Selling, general and administrative expenses 35 73 Sublease income (3) Selling, general and administrative expenses (16 ) (32 ) Net lease cost $ 336 $ 586 (1) (2) (3)
Future Minimum Lease Payments	The future minimum lease payments under non-cancellable operating leases are reflected below. This table also reflects the reconciliation of the undiscounted cash flows to the discounted operating lease liabilities as recognized at June 30, 2019 consolidated balance sheets ( in thousands Operating Leases 2019 $ 654 2020 1,246 2021 1,216 2022 1,156 2023 622 After 2023 107 Total lease payments $ 5,001 Less: Interest 484 Present value of lease payments $ 4,517
Operating Lease Weighted Average Remaining Lease Term And Discount Rate	The Company has calculated the weighted-average remaining lease term, presented in years below, and the weighted-average discount rate for our operating leases. As noted in our lease accounting policy, the Company uses the incremental borrowing rate as the lease discount rate. Lease Term and Discount Rate Six Months Ended June 30, 2019 Weighted-average remaining lease term (years) Operating leases 4.22 Weighted-average discount rate Operating leases 5 %
Classification of Lease Payments in the Statement of Cash Flows	The table below sets out the classification of lease payments in the consolidated statement of cash flows. The right-of-use assets obtained in exchange for operating lease liabilities represent new operating leases obtained through business combination during the six months ended June 30, 2019. (in thousands) Other Information Six Months Ended June 30, 2019 - Operating cash flows used in operating leases $ 567 Cash paid for amounts included in measurement of liabilities 567 Right-of-use assets obtained in exchange for new operating liabilities $ 1,777

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2019
Segment Information [Abstract]
Reconciliation of Segment Revenue to Consolidated Revenue and Operating Results to Consolidated Income Before Income Taxes	The following table sets forth the revenue and operating results attributable to each reportable segment and includes a reconciliation of segment revenue to consolidated revenue and operating results to consolidated income before income taxes. Inter-segment revenue is eliminated in consolidation and is not significant: (in thousands) Three months ended June 30, Six months ended June 30, 2019 2018 2019 2018 Revenue: Performance Improvement Solutions $ 13,010 $ 10,864 $ 25,200 $ 20,765 Nuclear Industry Training and Consulting 10,448 13,834 20,452 26,828 23,458 24,698 45,652 47,593 Operating loss: Performance Improvement Solutions 1,010 619 208 (171 ) Nuclear Industry Training and Consulting (293 ) 61 (1,218 ) (277 ) Loss on impairment - - (5,464 ) - Change in fair value of contingent consideration, net - - 1,200 - Operating income (loss) 717 680 (5,274 ) (448 ) Interest (expense), net (316 ) (61 ) (524 ) (39 ) Loss on derivative instruments, net (101 ) (91 ) (8 ) (247 ) Other (expense) income, net (19 ) 4 3 29 Income (loss) before income taxes $ 281 $ 532 $ (5,803 ) $ (705 )

Non-consolidated Variable Int_2

Non-consolidated Variable Interest Entity (Tables)	6 Months Ended
	Jun. 30, 2019
Non-consolidated Variable Interest Entity [Abstract]
Carrying Amount and Classification of Assets Related to Variable Interests	The following table presents the carrying amount and classification of the assets related to the Company’s variable interests in non-consolidated VIE and the maximum exposure to loss at June 30, 2019. ( In thousands June 30, 2019 Assets Cash: Checking account $ 184 Total assets $ 184 Liabilities Credit card and other payables 184 Total liabilities 184 Total net assets $ - Maximum exposure to loss $ -

Recent Accounting Pronounceme_3

Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Accounting Pronouncements Recently Adopted [Abstract]
Right of use assets	$ 4,071	$ 0
Operating lease liability	$ 4,517
ASU 2016-02 [Member]
Accounting Pronouncements Recently Adopted [Abstract]
Right of use assets		2,700
Operating lease liability		$ 3,000

Basic and Diluted (Loss) Inco_3

Basic and Diluted (Loss) Income per Common Share (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Numerator [Abstract]
Net (loss) income	$ (125)	$ 981	$ (4,361)	$ (515)
Denominator [Abstract]
Weighted-average shares outstanding for basic loss per share (in shares)	20,006,492	19,651,441	19,979,018	19,580,046
Effect of dilutive securities [Abstract]
Stock options and restricted stock units (in shares)	0	377,682	0	0
Adjusted weighted-average shares outstanding and assumed conversions for diluted loss per share (in shares)	20,006,492	20,029,123	19,979,018	19,580,046
Shares related to dilutive securities excluded because inclusion would be anti-dilutive (in shares)	263,241	374,833	175,848	714,821

Acquisitions, Consideration Pai

Acquisitions, Consideration Paid For Acquisition (Details) - USD ($) $ in Thousands	Feb. 15, 2019	May 11, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Purchase price allocation [Abstract]
Goodwill			$ 16,709		$ 16,709	$ 16,709		$ 13,170
Revenue			23,458	$ 24,698		45,652	$ 47,593
Net (loss) Income			(125)	981		$ (4,361)	(515)
DP Engineering Ltd, CO. [Member]
Business Acquisition [Abstract]
Percentage of ownership interest acquired	100.00%
Business acquisition, name of acquired entity						DP Engineering Ltd, CO.
Business acquisition, effective date of acquisition						Feb. 15, 2019
Calculation of Adjusted Purchase Price [Abstract]
Base purchase price per agreement	$ 13,500
Pre closing working capital adjustment	155
Fair value of contingent consideration	1,200
Total purchase price	14,855
Acquisition [Abstract]
Total purchase price	14,855
Purchase price allocation [Abstract]
Cash	134
Contract receivables	2,934
Prepaid expenses and other current assets	209
Property, and equipment, net	210
Intangible assets	6,798
Other assets	1,806
Accounts payable and accrued expenses	(1,375)
Other liabilities	(1,494)
Total identifiable net assets	9,222
Goodwill	5,633
Net assets acquired	14,855
Tax deductible goodwill	5,633
Cash consideration in escrow	1,687
Proceeds from issuance of debt	14,263
Earn-out amount	$ 5,000
Period to satisfy indemnification claims	18 months
Transaction costs			$ 628		628	$ 628
Revenue					$ 4,325
True North Consulting, LLC [Member]
Business Acquisition [Abstract]
Percentage of ownership interest acquired		100.00%
Business acquisition, name of acquired entity						True North Consulting LLC
Business acquisition, effective date of acquisition						May 11, 2018
Calculation of Adjusted Purchase Price [Abstract]
Base purchase price per agreement		$ 9,750
Total purchase price		9,915
Acquisition [Abstract]
Total purchase price		9,915
Purchase price allocation [Abstract]
Cash		306
Contract receivables		1,870
Prepaid expenses and other current assets		8
Property, and equipment, net		1
Intangible assets		5,088
Accounts payable and accrued expenses		(1,744)
Accrued compensation		(353)
Total identifiable net assets		5,176
Goodwill		4,739
Net assets acquired		9,915
Tax deductible goodwill		4,739
Cash consideration in escrow		1,463
Proceeds from issuance of debt		$ 10,300
Period to satisfy indemnification claims		18 months
Transaction costs				$ 540			$ 540

Acquisitions, Intangible Assets

Acquisitions, Intangible Assets (Details) - USD ($) $ in Thousands	Feb. 15, 2019	May 11, 2018	Jun. 30, 2019
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets acquired			$ 6,798
DP Engineering Ltd, CO. [Member]
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets acquired	$ 6,798
DP Engineering Ltd, CO. [Member] | Minimum [Member]
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets, weighted average useful life	5 years
DP Engineering Ltd, CO. [Member] | Maximum [Member]
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets, weighted average useful life	15 years
True North Consulting, LLC [Member]
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets acquired		$ 5,088
True North Consulting, LLC [Member] | Minimum [Member]
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets, weighted average useful life		4 years
True North Consulting, LLC [Member] | Maximum [Member]
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets, weighted average useful life		15 years
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets acquired			4,898
Customer Relationships [Member] | DP Engineering Ltd, CO. [Member]
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets acquired	$ 4,898
Finite-lived intangible assets, weighted average useful life	15 years
Customer Relationships [Member] | True North Consulting, LLC [Member]
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets acquired		$ 3,758
Finite-lived intangible assets, weighted average useful life		15 years
Tradename [Member] | DP Engineering Ltd, CO. [Member]
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets acquired	$ 1,172
Finite-lived intangible assets, weighted average useful life	10 years
Tradename [Member] | True North Consulting, LLC [Member]
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets acquired		$ 582
Finite-lived intangible assets, weighted average useful life		10 years
Non-compete Agreements [Member]
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets acquired			$ 728
Non-compete Agreements [Member] | DP Engineering Ltd, CO. [Member]
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets acquired	$ 728
Finite-lived intangible assets, weighted average useful life	5 years
Non-compete Agreements [Member] | True North Consulting, LLC [Member]
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets acquired		$ 221
Finite-lived intangible assets, weighted average useful life		4 years
Alliance Agreements [Member] | True North Consulting, LLC [Member]
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets acquired		$ 527
Finite-lived intangible assets, weighted average useful life		5 years

Acquisitions, Pro Forma Financi

Acquisitions, Pro Forma Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Business Acquisition, Pro Forma Information [Abstract]
Revenue	$ 23,458	$ 31,664	$ 48,636	$ 59,577
Net income (loss)	$ 77	$ 1,331	$ (4,250)	$ (173)

Restructuring Activities (Detai

Restructuring Activities (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)Position	Jun. 30, 2018USD ($)	Dec. 31, 2018USD ($)
Restructuring Activities [Abstract]
Restructuring and related cost, expected number of positions eliminated | Position			40
Expected restructuring costs	$ 2,200		$ 2,200
Restructuring cost, cost incurred to date	2,000		2,000
Restructuring charges	$ 2	$ 190	2	$ 1,107	$ 1,300
Cumulative translation adjustment			1,300
Tax benefit			1,000
Payments			$ 54

Contingent Consideration (Detai

Contingent Consideration (Details) - USD ($) $ in Millions	Jun. 30, 2019	Feb. 15, 2019
Contingent Consideration [Abstract]
Fair value of contingent consideration	$ 0	$ 1.2
Contingent liability outstanding	$ 0

Contract Receivables (Details)

Contract Receivables (Details) $ in Thousands	1 Months Ended	6 Months Ended		12 Months Ended
	Jul. 31, 2019USD ($)	Jun. 30, 2019USD ($)Customer	Jun. 30, 2018USD ($)	Dec. 31, 2018USD ($)Customer
Contract Receivables [Abstract]
Maximum term of contract receivables		12 months
Components of contract receivables [Abstract]
Billed receivables		$ 10,816		$ 15,998
Unbilled receivables		8,675		5,506
Allowance for doubtful accounts		(426)		(427)
Total contract receivables, net		19,065		$ 21,077
Unbilled Contract Receivables [Abstract]
Unbilled contract receivables billed during July 2019		$ (4,512)	$ (4,121)
Subsequent Event [Member]
Unbilled Contract Receivables [Abstract]
Unbilled contract receivables billed during July 2019	$ 6,100
Contract Receivable [Member]
Concentration Risk [Abstract]
Number of customers accounting for contract receivables | Customer		1		1
Percentage of contract receivables accounted by major customers		30.20%		16.80%

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets (Details) $ in Thousands	Feb. 15, 2019USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)Segment	Jun. 30, 2018USD ($)	Dec. 31, 2018USD ($)
Goodwill and Intangible Assets [Abstract]
Number of reporting units | Segment				2
Number of operating segments | Segment				2
Goodwill [Roll Forward]
Net book value, beginning balance				$ 13,170
Acquisition				5,633
Dispositions				0
Goodwill impairment loss				(2,094)
Net book value, ending balance		$ 16,709		16,709
Amortized Intangible Assets [Abstract]
Gross carrying amount		9,946		9,946		$ 9,945
Accumulated amortization		(4,920)		(4,920)		(3,865)
Addition				6,798
Impairment				(3,370)
Net		8,454		8,454		6,080
Amortization of definite-lived intangible assets		547	$ 312	1,056	$ 462
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2019		990		990
2020		1,973		1,973
2021		1,470		1,470
2022		1,152		1,152
2023		868		868
Thereafter		2,001		2,001
Total		8,454		8,454		6,080
Customer Relationships [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount		6,832		6,832		6,831
Accumulated amortization		(3,098)		(3,098)		(2,375)
Addition				4,898
Impairment				(3,370)
Net		5,262		5,262		4,456
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total		5,262		5,262		4,456
Trade Names [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount		1,295		1,295		1,295
Accumulated amortization		(515)		(515)		(318)
Addition				1,172
Impairment				0
Net		1,952		1,952		977
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total		1,952		1,952		977
Developed Technology [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount		471		471		471
Accumulated amortization		(471)		(471)		(471)
Net		0		0		0
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total		0		0		0
Non-Controlling Customer Relationships [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount		433		433		433
Accumulated amortization		(433)		(433)		(433)
Net		0		0		0
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total		0		0		0
Noncompete Agreements [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount		221		221		221
Accumulated amortization		(117)		(117)		(35)
Addition				728
Impairment				0
Net		832		832		186
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total		832		832		186
Alliance Agreement [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount		527		527		527
Accumulated amortization		(119)		(119)		(66)
Net		408		408		461
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total		408		408		461
Others [Member]
Amortized Intangible Assets [Abstract]
Gross carrying amount		167		167		167
Accumulated amortization		(167)		(167)		(167)
Net		0		0		0
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total		0		0		$ 0
Performance Improvement Solutions [Member]
Goodwill [Roll Forward]
Net book value, beginning balance				4,739
Acquisition				5,633
Dispositions				0
Goodwill impairment loss				(2,094)
Net book value, ending balance		8,278		8,278
Nuclear Industry Training and Consulting [Member]
Goodwill [Roll Forward]
Net book value, beginning balance				8,431
Acquisition				0
Dispositions				0
Goodwill impairment loss				0
Net book value, ending balance		$ 8,431		$ 8,431
DP Engineering Ltd, CO. [Member]
Goodwill [Roll Forward]
Net book value, ending balance	$ 5,633
Amortized Intangible Assets [Abstract]
Addition	6,798
DP Engineering Ltd, CO. [Member] | Minimum [Member]
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Amortization term of intangible assets acquired				5 years
DP Engineering Ltd, CO. [Member] | Maximum [Member]
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Amortization term of intangible assets acquired				15 years
DP Engineering Ltd, CO. [Member] | Customer Relationships [Member]
Amortized Intangible Assets [Abstract]
Addition	4,898
DP Engineering Ltd, CO. [Member] | Noncompete Agreements [Member]
Amortized Intangible Assets [Abstract]
Addition	$ 728

Fair Value of Financial Instr_3

Fair Value of Financial Instruments (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)LetterContract	Dec. 31, 2018USD ($)
Performance Bond [Abstract]
Number of standby letters of credit | Letter	3
Letter of credit and surety bonds	$ 900
Number of contracts | Contract	3
Assets and Liabilities Measured at Fair Value [Abstract]
Money market funds	$ 575	$ 824
Foreign exchange contracts	113	43
Total assets	688	867
Liability awards	(112)	(118)
Interest rate swap contract	(191)	(103)
Total liabilities	(303)	(221)
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets and Liabilities Measured at Fair Value [Abstract]
Money market funds	575	824
Foreign exchange contracts	0	0
Total assets	575	824
Liability awards	0	0
Interest rate swap contract	0	0
Total liabilities	0	0
Significant Other Observable Inputs (Level 2) [Member]
Assets and Liabilities Measured at Fair Value [Abstract]
Money market funds	0	0
Foreign exchange contracts	113	43
Total assets	113	43
Liability awards	(112)	(118)
Interest rate swap contract	(191)	(103)
Total liabilities	(303)	(221)
Significant Unobservable Inputs (Level 3) [Member]
Assets and Liabilities Measured at Fair Value [Abstract]
Money market funds	0	0
Foreign exchange contracts	0	0
Total assets	0	0
Liability awards	0	0
Interest rate swap contract	0	0
Total liabilities	0	$ 0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	0
Issuance of contingent consideration in connection with acquisitions	1,200
Change in fair value	(1,200)
Ending balance	$ 0

Derivative Instruments, Foreign

Derivative Instruments, Foreign Exchange Contracts (Details) - Foreign Exchange Contracts [Member] - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Derivative [Abstract]
Foreign exchange contract outstanding	€ 3.7	€ 3.2
Expiration date of contract	Dec. 31, 2020

Derivative Instruments, Interes

Derivative Instruments, Interest Rate Risk Management (Details) $ in Millions	6 Months Ended
	Jun. 30, 2019USD ($)
Interest Rate Swap [Member]
Derivative [Abstract]
Notional amount	$ 9
Principal repayment term	5 years
Fixed interest rate	3.02%
Term Loan [Member] | Minimum [Member]
Derivative [Abstract]
Debt instrument, basis spread on variable rate	2.00%
Term Loan [Member] | Maximum [Member]
Derivative [Abstract]
Debt instrument, basis spread on variable rate	2.75%
LIBOR [Member]
Derivative [Abstract]
Term of variable rate	1 month
LIBOR - BBA Bloomberg [Member]
Derivative [Abstract]
Term of variable rate	1 month

Derivative Instruments, Fair Va

Derivative Instruments, Fair Values Derivatives, Balance Sheet Location (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Estimated fair value of the contracts in the consolidated balance sheets [Abstract]
Asset derivatives	$ 113	$ 43
Liability derivatives	(191)	(103)
Net fair value	(78)	(60)
Foreign Exchange Contracts [Member] | Prepaid Expenses and Other Current Assets [Member]
Estimated fair value of the contracts in the consolidated balance sheets [Abstract]
Asset derivatives	113	43
Interest Rate Swaps [Member] | Other Liabilities [Member]
Estimated fair value of the contracts in the consolidated balance sheets [Abstract]
Liability derivatives	$ (191)	$ (103)

Derivative Instruments, (Loss)

Derivative Instruments, (Loss) Gain on Derivative Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net (Loss) Gain on Derivative Instruments [Abstract]
Interest rate swap - change in fair value	$ (62)	$ (11)	$ (88)	$ (11)
Foreign exchange contracts - change in fair value	(32)	(46)	70	(164)
Remeasurement of related contract receivables, billings in excess of revenue earned, and subcontractor accruals	(7)	(34)	10	(72)
Loss on derivative instruments, net	$ (101)	$ (91)	$ (8)	$ (247)

Stock-Based Compensation (Detai

Stock-Based Compensation (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2019USD ($)shares	Jun. 30, 2018USD ($)shares	Jun. 30, 2019USD ($)qtrshares	Jun. 30, 2018USD ($)shares
Share-based Compensation [Abstract]
Aggregate fair value for performance-based RSUs	$ 0
Restricted Stock Units [Member]
Share-based Compensation [Abstract]
Stock-based compensation expense	$ (60,000)	$ 28,000	$ (33,000)	$ (60,000)
Granted performance-based RSUs (in shares) | shares	0		350,000
Aggregate fair value for performance-based RSUs			$ 900,000
Granted time-based RSUs (in shares) | shares	200,000	200,000	500,000	400,000
Aggregate fair value for time-based RSUs	$ 600,000	$ 600,000	$ 1,400,000	$ 1,300,000
Number of quarters time-based RSU's will vest quarterly | qtr			8
Period in which time-based RSU's will vest annually in equal amounts			3 years
Restricted Stock Units [Member] | Minimum [Member]
Share-based Compensation [Abstract]
Requisite service period for time-based RSU's			1 year
Restricted Stock Units [Member] | Maximum [Member]
Share-based Compensation [Abstract]
Requisite service period for time-based RSU's			3 years
Stock Option [Member]
Share-based Compensation [Abstract]
Stock-based compensation expense	$ 499,000	$ 373,000	$ 1,069,000	$ 968,000

Debt (Details)

Debt (Details) $ in Thousands

Feb. 15, 2019USD ($)

May 11, 2018USD ($)

Jun. 30, 2019USD ($)Letter

Sep. 30, 2021

Jun. 30, 2021

Mar. 31, 2021

Dec. 31, 2020

Sep. 30, 2020

Jun. 30, 2020

Mar. 31, 2020

Dec. 31, 2019

Sep. 30, 2019

Jun. 28, 2019

Dec. 31, 2018USD ($)

Dec. 29, 2016USD ($)

Line of Credit Facility [Abstract]

Leverage ratio

275.00%

Number of letters of credit | Letter

3

Plan [Member]

Line of Credit Facility [Abstract]

Leverage ratio

225.00%

225.00%

225.00%

225.00%

250.00%

250.00%

275.00%

275.00%

275.00%

LIBOR [Member]

Term Loan [Abstract]

Term of variable rate

1 month

Minimum [Member]

Line of Credit Facility [Abstract]

Fixed charge coverage ratio

105.00%

Maximum [Member]

Line of Credit Facility [Abstract]

Fixed charge coverage ratio

125.00%

Citizen's Bank [Member] | Revolving Credit Facility [Member]

Line of Credit Facility [Abstract]

Line of credit facility expiration period

3 years

Principal amount of the line of credit

$ 5,000

Line of credit facility term

5 years

Outstanding letter of credit balance

$ 0

Number of letters of credit | Letter

3

Outstanding letter of credit balance

$ 900

Line of credit facility, remaining borrowing capacity

$ 4,100

Citizen's Bank [Member] | Revolving Credit Facility [Member] | Minimum [Member]

Line of Credit Facility [Abstract]

Percentage of letter of credit fees per annum

1.25%

Citizen's Bank [Member] | Revolving Credit Facility [Member] | Maximum [Member]

Line of Credit Facility [Abstract]

Percentage of letter of credit fees per annum

2.00%

Delayed Draw Term Loan [Member]

Long-term Debt, Current and Noncurrent [Abstract]

Long-term debt, net of discount

$ 20,934

$ 8,512

Less: current portion of long-term debt

(4,773)

(1,902)

Long-term debt, less current portion

$ 16,161

$ 6,610

Delayed Draw Term Loan [Member] | Minimum [Member]

Term Loan [Abstract]

Debt instrument, basis spread on variable rate

2.00%

Delayed Draw Term Loan [Member] | Maximum [Member]

Term Loan [Abstract]

Debt instrument, basis spread on variable rate

2.75%

Delayed Draw Term Loan [Member] | Citizen's Bank [Member] | Maximum [Member]

Line of Credit Facility [Abstract]

Line of credit facility expiration period

18 months

Delayed Draw Term Loan [Member] | Citizen's Bank [Member] | Revolving Credit Facility [Member]

Line of Credit Facility [Abstract]

Principal amount of the line of credit

$ 25,000

DP Engineering Ltd, CO. [Member]

Term Loan [Abstract]

Cash purchase price

$ 13,500

Proceeds from issuance of debt

14,263

Earn-out amount

$ 5,000

DP Engineering Ltd, CO. [Member] | Delayed Draw Term Loan [Member]

Line of Credit Facility [Abstract]

Line of credit facility term

5 years

DP Engineering Ltd, CO. [Member] | Delayed Draw Term Loan [Member] | LIBOR [Member]

Term Loan [Abstract]

Term of variable rate

1 month

DP Engineering Ltd, CO. [Member] | Delayed Draw Term Loan [Member] | Minimum [Member]

Term Loan [Abstract]

Debt instrument, basis spread on variable rate

2.00%

DP Engineering Ltd, CO. [Member] | Delayed Draw Term Loan [Member] | Maximum [Member]

Term Loan [Abstract]

Debt instrument, basis spread on variable rate

2.75%

True North Consulting, LLC [Member]

Term Loan [Abstract]

Cash purchase price

9,750

Proceeds from issuance of debt

10,300

True North Consulting, LLC [Member] | Delayed Draw Term Loan [Member]

Line of Credit Facility [Abstract]

Line of credit facility term

5 years

Term Loan [Abstract]

Proceeds from issuance of debt

10,300

Repayments of debt

$ 500

Debt issuance costs

$ 70

Loan origination fees

$ 75

True North Consulting, LLC [Member] | Delayed Draw Term Loan [Member] | LIBOR [Member]

Term Loan [Abstract]

Term of variable rate

1 month

True North Consulting, LLC [Member] | Delayed Draw Term Loan [Member] | Citizen's Bank [Member] | Minimum [Member]

Term Loan [Abstract]

Debt instrument, basis spread on variable rate

2.00%

True North Consulting, LLC [Member] | Delayed Draw Term Loan [Member] | Citizen's Bank [Member] | Maximum [Member]

Term Loan [Abstract]

Debt instrument, basis spread on variable rate

2.75%

Product Warranty (Details)

Product Warranty (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)
Product warranty provision [Abstract]
Warranty terms for SDB contracts	1 year
Accrued warranty, current	$ 1,136
Accrued warranty, noncurrent	601
Activities in product warranty account [Abstract]
Balance, January 1, 2018	1,621
Current period provision	175
Current period claims	(58)
Currency adjustment	(1)
Balance at September 30, 2018	$ 1,737

Revenue (Details)

Revenue (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019USD ($)Obligation	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)StreamObligation	Jun. 30, 2018USD ($)
Disaggregation of Revenue [Abstract]
Revenue	$ 23,458	$ 24,698	$ 45,652	$ 47,593
Number of broad revenue streams | Stream			3
Contract with Customer, Asset and Liability [Abstract]
Revenue recognized in the period from amounts included in Billings in Excess at the beginning of the period	2,813	2,738	$ 7,853	7,954
Amount of revenue recognized related to performance obligations satisfied in previous periods	$ 1,103		$ 1,850
Revenue, Performance Obligation [Abstract]
Number of performance obligations | Obligation	2		2
Remaining performance obligation	$ 27,159		$ 27,159
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-04-01
Revenue, Performance Obligation [Abstract]
Expected period to recognize revenue as performance obligations are satisfied	12 months		12 months
Performance Improvement Solutions [Member]
Disaggregation of Revenue [Abstract]
Revenue	$ 13,010	10,864	$ 25,200	20,765
Performance Improvement Solutions [Member] | System Design and Build [Member]
Disaggregation of Revenue [Abstract]
Revenue	5,595	7,300	12,037	14,795
Performance Improvement Solutions [Member] | Software [Member]
Disaggregation of Revenue [Abstract]
Revenue	635	546	1,384	1,415
Performance Improvement Solutions [Member] | Training and Consulting Services [Member]
Disaggregation of Revenue [Abstract]
Revenue	6,780	3,018	11,779	4,555
Nuclear Industry Training and Consulting [Member]
Disaggregation of Revenue [Abstract]
Revenue	10,448	13,834	20,452	26,828
Nuclear Industry Training and Consulting [Member] | Training and Consulting Services [Member]
Disaggregation of Revenue [Abstract]
Revenue	$ 10,448	$ 13,834	$ 20,452	$ 26,828

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Taxes [Abstract]
(Benefits) provision for income taxes	$ 406	$ (449)	$ (1,442)	$ (190)
Effective tax rate	144.50%	(84.40%)	24.80%	27.00%
Statutory federal income tax rate			21.00%
Income Tax Examination [Abstract]
Probability of uncertain tax position to be recognized			50.00%
Percentage of tax position realized upon ultimate settlement			50.00%
Sweden [Member]
Income Tax Examination [Abstract]
Income tax examination, year under examination			2011
China [Member]
Income Tax Examination [Abstract]
Income tax examination, year under examination			2015
India [Member]
Income Tax Examination [Abstract]
Income tax examination, year under examination			2015
UK [Member]
Income Tax Examination [Abstract]
Income tax examination, year under examination			2016
Federal [Member]
Income Tax Examination [Abstract]
Income tax examination, year under examination			2000
State [Member]
Income Tax Examination [Abstract]
Income tax examination, year under examination			2000

Leases (Details)

Leases (Details) $ in Thousands		3 Months Ended	6 Months Ended
		Jun. 30, 2019USD ($)	Jun. 30, 2019USD ($)Squarefeet	Dec. 31, 2018USD ($)
Lessee, Operating Lease, Description [Abstract]
Sublease square feet | Squarefeet			3,822
Sublease date			Apr. 1, 2017
Leased Assets [Abstract]
Operating lease - right of use assets		$ 4,071	$ 4,071	$ 0
Lease Liabilities [Abstract]
Operating lease liabilities - Current		1,078	1,078
Operating lease liabilities - Noncurrent		3,439	3,439	$ 0
Operating lease liability		4,517	4,517
Consolidated Statement of Operations Information [Abstract]
Operating lease cost	[1]	317	545
Short-term leases costs	[2]	35	73
Sublease income	[3]	(16)	(32)
Net lease cost		336	586
Minimum Lease Payments [Abstract]
2019		654	654
2020		1,246	1,246
2021		1,216	1,216
2022		1,156	1,156
2023		622	622
After 2023		107	107
Total lease payments		5,001	5,001
Less: Interest		484	484
Operating lease liability		$ 4,517	$ 4,517
Lease Term and Discount Rate [Abstract]
Weighted-average remaining lease term (in years)			4 years 2 months 19 days
Weighted-average discount rate		5.00%	5.00%
Other Information [Abstract]
Operating cash flows used in operating leases			$ 567
Cash paid for amounts included in measurement of liabilities			567
Right-of-use assets obtained in exchange for new operating liabilities			$ 1,777
Minimum [Member]
Lessee, Operating Lease, Description [Abstract]
Remaining operating lease terms		1 year	1 year
Renewal option period		1 year	1 year
Maximum [Member]
Lessee, Operating Lease, Description [Abstract]
Remaining operating lease terms		6 years	6 years
Renewal option period		5 years	5 years
[1]	Includes variable lease costs which are immaterial.
[2]	Include leases maturity less than twelve months from the report date.
[3]	Sublease portfolio consists of the sublease part of our principal executive office located at 1332 Londontown Blvd, Suite 200, Sykesville, MD.

Segment Information (Details)

Segment Information (Details) $ in Thousands	3 Months Ended		5 Months Ended	6 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2019USD ($)Segment	Jun. 30, 2018USD ($)	Feb. 15, 2019	May 11, 2018
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Number of reportable business segments | Segment				2
Contract term				2 years
Segment Reporting Information, Profit (Loss) [Abstract]
Revenue	$ 23,458	$ 24,698		$ 45,652	$ 47,593
Operating income (loss)	717	680		(5,274)	(448)
Loss on impairment	0	0		(5,464)	0
Change in fair value of contingent consideration, net	0	0		1,200	0
Interest (expense), net	(316)	(61)		(524)	(39)
Loss on derivative instruments, net	(101)	(91)		(8)	(247)
Other (expense) income, net	(19)	4		3	29
Income (loss) before income taxes	281	532		(5,803)	(705)
Performance Improvement Solutions [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Revenue	13,010	10,864		25,200	20,765
Operating income (loss)	1,010	619		208	(171)
Nuclear Industry Training and Consulting [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Revenue	10,448	13,834		20,452	26,828
Operating income (loss)	$ (293)	$ 61		$ (1,218)	$ (277)
DP Engineering Ltd, Co [Member]
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Percentage of ownership interest acquired						100.00%
Segment Reporting Information, Profit (Loss) [Abstract]
Revenue			$ 4,325
True North Consulting, LLC [Member]
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Percentage of ownership interest acquired							100.00%

Non-consolidated Variable Int_3

Non-consolidated Variable Interest Entity (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Cash [Abstract]
Contract receivables, net	$ 19,065	$ 21,077
Total assets	68,996	61,440
Liabilities [Abstract]
Total liabilities	41,375	$ 30,311
Carrying value	$ 0
DP Engineering Ltd, Co [Member]
Variable Interest Entity [Line Items]
Ownership percentage	48.00%
Contribution amount	$ 48
NXA Consultants LLC [Member]
Variable Interest Entity [Line Items]
Ownership percentage	52.00%
Contribution amount	$ 52
Variable Interest Entity, Not Primary Beneficiary [Member]
Cash [Abstract]
Checking account	184
Total assets	184
Liabilities [Abstract]
Credit card and other payables	184
Total liabilities	184
Total net assets	0
Maximum exposure to loss	$ 0