Gse Systems (GVP) 10-Q 13 Aug 15 2015 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	6 Months Ended
	Jun. 30, 2015	Aug. 13, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	GSE SYSTEMS INC
Entity Central Index Key	944,480
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float	$ 27,315,219
Entity Common Stock, Shares Outstanding		17,887,859
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2015

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 9,755	$ 13,583
Restricted cash	1,232	613
Contract receivables, net	15,962	15,830
Prepaid expenses and other current assets	2,159	1,703
Total current assets	29,108	31,729
Equipment, software and leasehold improvements	7,135	7,055
Accumulated depreciation	5,377	5,229
Equipment, software and leasehold improvements, net	1,758	1,826
Software development costs, net	2,157	1,414
Goodwill	5,612	5,612
Intangible assets, net	1,035	1,279
Long-term restricted cash	3,291	3,591
Other assets	443	548
Total assets	43,404	45,999
Current liabilities:
Line of credit	0	339
Accounts payable	1,679	2,330
Accrued expenses	1,695	1,554
Accrued compensation and payroll taxes	2,728	2,595
Billings in excess of revenue earned	8,230	8,684
Accrued warranty	1,573	1,456
Current contingent consideration	2,775	2,842
Other current liabilities	516	473
Total current liabilities	19,196	20,273
Contingent consideration	2,130	1,948
Other liabilities	208	38
Total liabilities	21,534	22,259
Stockholder's equity:
Preferred stock $.01 par value, 2,000,000 shares authorized, shares issued and outstanding none in 2015 and 2014	0	0
Common stock $.01 par value, 30,000,000 shares authorized, shares issued 19,486,770 and 17,887,859 shares outstanding in both 2015 and 2014	195	195
Additional paid-in capital	73,188	72,917
Accumulated deficit	(47,153)	(45,142)
Accumulated other comprehensive loss	(1,361)	(1,231)
Treasury stock at cost, 1,598,911 shares in 2015 and 2014	2,999	2,999
Total stockholders' equity	21,870	23,740
Total liabilities and stockholders' equity	$ 43,404	$ 45,999

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2015	Dec. 31, 2014
Stockholder's 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
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	30,000,000	30,000,000
Common stock, shares issued (in shares)	19,486,770	19,486,770
Treasury stock, shares acquired (in shares)	1,598,911	1,598,911
Common Stock, Shares, Outstanding	17,887,859	17,887,859

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Consolidated Statements of Operations (Unaudited)
Contract revenue	$ 13,632	$ 8,276	$ 27,628	$ 17,000
Cost of revenue	10,717	5,629	21,491	12,129
Gross profit	2,915	2,647	6,137	4,871
Operating expenses:
Selling, general and administrative	3,999	4,452	7,365	8,596
Depreciation	135	134	264	273
Amortization of definite-lived intangible assets	124	36	247	72
Total operating expenses	4,258	4,622	7,876	8,941
Operating loss	(1,343)	(1,975)	(1,739)	(4,070)
Interest income, net	21	28	48	59
(Gain) loss on derivative instruments, net	(31)	5	(79)	109
Other income (expense), net	(41)	3	(80)	(7)
Loss before income taxes	(1,394)	(1,939)	(1,850)	(3,909)
Provision for income taxes	73	47	161	101
Net loss	$ (1,467)	$ (1,986)	$ (2,011)	$ (4,010)
Basic loss per common share	$ (0.08)	$ (0.11)	$ (0.11)	$ (0.22)
Diluted loss per common share	$ (0.08)	$ (0.11)	$ (0.11)	$ (0.22)

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Consolidated Statements of Comprehensive Loss
Net loss	$ (1,467)	$ (1,986)	$ (2,011)	$ (4,010)
Foreign currency translation adjustment, net of tax	106	(106)	(130)	(101)
Comprehensive loss	$ (1,361)	$ (2,092)	$ (2,141)	$ (4,111)

CONSOLIDATED STATEMENT OF CHANG

CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - 6 months ended Jun. 30, 2015 - USD ($)	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss	Treasury Stock	Total
Balance at Dec. 31, 2014	$ 195,000	$ 72,917,000	$ (45,142,000)	$ (1,231,000)	$ (2,999,000)	$ 23,740,000
Balance (in shares) at Dec. 31, 2014	19,486,770				(1,598,911)	17,887,859
Stock-based compensation expense		271,000				$ 271,000
Foreign currency translation adjustment, net of tax				(130,000)		(130,000)
Net loss			(2,011,000)			(2,011,000)
Balance at Jun. 30, 2015	$ 195,000	$ 73,188,000	$ (47,153,000)	$ (1,361,000)	$ (2,999,000)	$ 21,870,000
Balance (in shares) at Jun. 30, 2015	19,486,770				(1,598,911)	17,887,859

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net loss	$ (2,011)	$ (4,010)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation	264	273
Amortization of definite-lived intangible assets	247	72
Capitalized software amortization	195	95
Gain on change in fair value of contingent consideration, net	433	47
Stock-based compensation expense	271	339
Equity loss on investments	(78)	(38)
(Gain) loss on derivative instruments, net	(79)	109
Changes in assets and liabilities:
Contract receivables	138	(9,985)
Prepaid expenses and other assets	406	(268)
Accounts payable, accrued compensation and accrued expenses	(392)	(2,006)
Billings in excess of revenue earned	(440)	(650)
Accrued warranty reserves	117	(211)
Other liabilities	103	(627)
Net cash provided by (used in) operating activities	(1,600)	3,504
Cash flows from investing activities:
Capital expenditures	195	141
Capitalized Software Development Costs	938	349
Restrictions of cash as collateral under letters of credit	1,156	0
Releases of cash as collateral under letters of credit	837	34
Net cash used in investing activities	(1,452)	(456)
Cash flows from financing activities:
Payments on line of credit	(339)	0
Payments of the liability-classified contingent consideration arrangements	318	500
Net cash used in financing activities	(657)	(500)
Effect of exchange rate changes on cash	(119)	(88)
Net increase (decrease) in cash and cash equivalents	(3,828)	2,460
Cash and cash equivalents at beginning of year	13,583	15,643
Cash and cash equivalents at end of period	$ 9,755	$ 18,103

Basis of Presentation and Reven

Basis of Presentation and Revenue Recognition	6 Months Ended
	Jun. 30, 2015
Basis of Presentation and Revenue Recognition [Abstract]
Basis of Presentation and Revenue Recognition	1. Basis of Presentation and Revenue Recognition Basis of Presentation The consolidated interim financial statements included herein have been prepared by GSE Systems, Inc. (the "Company" or "GSE") without independent audit. 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 ("GAAP") have been condensed or omitted. 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, 2014 filed with the Securities and Exchange Commission on March 19, 2015. Certain reclassifications have been made to prior period amounts to conform to the current presentation. The Company has two reportable segments as follows: · Performance Improvement Solutions Our Performance Improvement Solutions business segment encompasses all of the solution-oriented technologies and services traditionally associated with GSE which focus on both our client's people and their plants and operations. This segment includes various simulation, training and engineering products and services delivered across the breadth of industries we serve. Our simulation solutions include platforms ranging from (1) the non-specific plant systems of our EnVision product line used to teach fundamental processes to newly hired employees, to (2) custom plant-specific simulators used to train plant operators, to (3) engineering-grade simulation solutions used to help clients verify and validate control systems prior to new plant construction or modification of existing plants, to (4) engineering-grade simulation solutions used for human factors engineering. Training applications include turnkey and custom training services and 3D visualization training products to make training more effective. Our engineering services include plant design, automation and control systems design, functional safety and compliance analysis, and engineering consultations. · Staff Augmentation Staff Augmentation services provide specialized workforce solutions primarily to the nuclear industry. These employees work at our clients' facilities under client direction. Examples of staff augmentation positions include instructors, procedure writers, work management specialists, planners, outage execution specialists, corrective action and self-assessment specialists, and training material developers. This business is managed through our Hyperspring, LLC subsidiary. The business model, management focus, margins and other factors clearly separate this business line from the rest of the GSE product and service portfolio. Hyperspring has been providing these services since 2005. Financial information about the two business segments are provided in Note 15 of the accompanying Consolidated Financial Statements. The preparation of financial statements in conformity with 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 long-term contracts, product warranties, capitalization of software development costs, valuation of goodwill and intangible assets acquired, valuation of contingent consideration issued in business acquisitions, and the recoverability of deferred tax assets. Actual results could differ from these estimates and those differences could be material. Revenue Recognition on Long-Term Contracts The Company recognizes revenue through (1) fixed price contracts on the sale of uniquely designed systems containing hardware, software and other materials as well as (2) time and material contracts primarily through staff augmentation support and service agreements. In accordance with U.S. generally accepted accounting principles ("GAAP"), our Performance Improvement Solutions segment accounts for revenue under fixed-price contracts using the percentage-of-completion method. This methodology recognizes revenue and earnings as work progresses on the contract and is based on an estimate of the revenue and earnings earned to date, less amounts recognized in prior periods. The Company bases its estimate of the degree of completion of the contract by reviewing the relationship of costs incurred to date to the expected total costs that will be incurred on the project. Estimated contract earnings are reviewed and revised periodically as the work progresses, and the cumulative effect of any change in estimate is recognized in the period in which the change is identified. Estimated losses are charged against earnings in the period such losses are identified. The Company recognizes revenue arising from contract claims either as income or as an offset against a potential loss only when the amount of the claim can be estimated reliably and realization is probable and there is a legal basis of the claim. 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. As the Company recognizes revenue under the percentage-of-completion method, it provides an accrual for estimated future warranty costs based on historical and projected claims experience. The Company's long-term contracts generally provide for a one-year warranty on parts, labor and any bug fixes as it relates to software embedded in the systems. The Company's system design contracts do not normally provide for "post customer support service" (PCS) in terms of software upgrades, software enhancements or telephone support. In order to obtain PCS, the customers normally must purchase a separate contract. Such PCS arrangements are generally for a one-year period renewable annually and include customer support, unspecified software upgrades, and maintenance releases. The Company recognizes revenue from these contracts ratably over the life of the agreements. Revenue from the sale of software licenses which do not require significant modifications or customization for the Company's modeling tools are recognized when the license agreement is signed, the license fee is fixed and determinable, delivery has occurred, and collection is considered probable. We evaluate our contracts for multiple deliverables under ASC 605- 25 Revenue Recognition-Multiple Element Arrangements The Company recognizes revenue under time and materials contracts primarily from staff augmentation and certain consulting agreements. Revenue on time and material contracts is recognized as services are rendered and performed. Under a typical time-and-materials billing arrangement, customers are billed on a regularly scheduled basis, such as biweekly or monthly. At the end of each accounting period, revenue is estimated and accrued for services performed since the last billing cycle. These unbilled amounts are billed the following month. For the three and six months ended June 30, 2015 and 2014, the following customers provided more than 10% of the Company's consolidated revenue: Three Months ended June 30, Six Months ended June 30, 2015 2014 2015 2014 Tennessee Valley Authority 18.7 % 0.0 % 19.9 % 0.0 % Public Service Enterprise Group Inc. 11.7 % 0.6 % 10.2 % 0.6 %

Recent Accounting Pronouncement

Recent Accounting Pronouncements Not Yet Adopted	6 Months Ended
	Jun. 30, 2015
Recent Accounting Pronouncements Not Yet Adopted [Abstract]
Recent Accounting Pronouncements Not Yet Adopted [Text Block]	2. Recent Accounting Pronouncements Not Yet Adopted In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers

Basic and Diluted Loss Per Comm

Basic and Diluted Loss Per Common Share	6 Months Ended
	Jun. 30, 2015
Basic and Diluted Loss Per Common Share [Abstract]
Basic and Diluted Loss Per Common Share	3. Basic and Diluted Loss Per Common Share Basic loss per share is based on the weighted average number of outstanding common shares for the period. Diluted loss per share adjusts the weighted average shares outstanding for the potential dilution that could occur if stock options were exercised into common stock. 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, 2015 2014 2015 2014 Numerator: Net loss $ (1,467 ) $ (1,986 ) $ (2,011 ) $ (4,010 ) Denominator: Weighted-average shares outstanding for basic earnings per share 17,887,859 17,887,859 17,887,859 17,887,859 Effect of dilutive securities: Employee stock options - - - - Adjusted weighted-average shares outstanding and assumed conversions for diluted earnings per share 17,887,859 17,887,859 17,887,859 17,887,859 Shares related to dilutive securities excluded because inclusion would be anti-dilutive 2,513,321 2,736,703 2,580,942 2,727,435

Acquisition

Acquisition	6 Months Ended
	Jun. 30, 2015
Acquisition [Abstract]
Acquisition	4. Acquisition Hyperspring, LLC On November 14, 2014, (the "Closing Date") the Company, through its operating subsidiary, GSE Power Systems, Inc. (now GSE Performance Solutions, Inc. "GSE Performance"), acquired Hyperspring, LLC ("Hyperspring") pursuant to a Membership Interests Purchase Agreement ("Purchase Agreement") with the sellers of Hyperspring ("Sellers"). Hyperspring, headquartered in Huntsville, Alabama, specializes in training and development, plant operations support services, and staff augmentation, primarily in the United States nuclear industry. Hyperspring operates as a wholly-owned subsidiary of GSE Performance. The purchase price allocation included customer relationship intangible assets valued at $779,000 which are being amortized over seven years. GSE Performance paid the Sellers an aggregate of $3.0 million in cash at the closing date. In addition, an additional million if Hyperspring attains certain EBITDA (earnings before interest, taxes, depreciation and amortization) targets for the three-year period ending November 13, 2017. Accordingly, the total cash paid to the former Hyperspring $1.2 million payment to the Hyperspring members if Hyperspring is successful in renewing its contract with the Tennessee Valley Authority ("TVA") for a two year period for substantially the same scope as was currently being provided and with substantially the same economics. As a result of TVA delaying the long-term contract award, GSE amended the purchase agreement with the former members of Hyperspring to extend the date that Hyperspring has to obtain a long-term contract with TVA from May 15, 2015 to December 31, 2015. None of the other terms of the Hyperspring purchase agreement changed as a result of this amendment. If Hyperspring is not successful in renewing the TVA contract, GSE may still be required to pay the Sellers up to an additional $8.4 million. The $1.2 million TVA payment will then be divided into three increments of $400,000 each and added to the annual payments which will be made to the former Hyperspring members if they attain certain EBITDA (earnings before interest, taxes, depreciation and amortization) targets for the three-year period ending November 13, 2017. In conjunction with the Hyperspring acquisition, GSE Performance invested $250,000 for a 50% interest in IntelliQlik, LLC ("IntelliQlik"). IntelliQlik is developing a software platform for online learning and learning management for the energy market. GSE Performance is obligated to contribute an additional $250,000 should IntelliQlik attain certain development milestones by September 30, 2015. IntelliQlik is jointly owned by GSE Performance and a former member of Hyperspring. To assist our clients in creating world-class internal training and performance improvement programs, GSE is building an E2E (Entry2Expert) Performance Solution. The E2E Performance Solution includes a set of integrated and scalable products and services that provide a structured training program, from employee selection and onboarding through continuous skills improvement for experienced employees. The Hyperspring acquisition, through its staff of instructors, engineers and specialists, and the IntelliQlik training platform, once completed, will increase the breadth of solutions that GSE can offer within the E2E Performance Solution program. The following table summarizes the purchase price and purchase price allocation for the acquisition of Hyperspring, LLC, acquired on November 14, 2014. (in thousands) Cash purchase price $ 3,000 Fair value of contingent consideration 3,953 Total purchase price $ 6,953 Purchase price allocation: Cash $ 152 Contract receivables 1,719 Prepaid expenses and other current assets 23 Property and equipment, net 12 Intangible assets 779 Goodwill 5,612 Total assets 8,297 Line of credit 749 Accounts payable, accrued expenses, and other liabilities 586 Billings in excess of revenue earned 9 Total liabilities 1,344 Net assets acquired $ 6,953 Pro forma results. (in thousands except per share data) (unaudited) Three Months ended Six Months ended June 30, June 30, Pro forma financial information including the acquisition of Hyperspring 2015 2014 2015 2014 Revenue $ 13,632 $ 12,760 $ 27,628 $ 25,968 Operating loss (918 ) (1,943 ) (1,506 ) (4,013 ) Net loss (1,043 ) (1,955 ) (1,777 ) (3,955 ) Loss per common share — basic $ (0.06 ) $ (0.11 ) $ (0.10 ) $ (0.22 ) Loss per common share — diluted $ (0.06 ) $ (0.11 ) $ (0.10 ) $ (0.22 ) Contingent Consideration Accounting Standards Codification 805, Business Combinations As of June 30, 2015 and December 31, 2014, current contingent consideration totaled $2.8 million and $2.8 million, respectively. As of June 30, 2015 and December 31, 2014, we also had accrued contingent consideration totaling $2.1 million and $1.9 million, respectively, which represents the portion of contingent consideration estimated to be payable greater than twelve months from the balance sheet date. (in thousands) June 30, December 31, 2015 2014 Hyperspring, LLC $ 2,383 $ 2,152 IntelliQlik, LLC 213 213 EnVision Systems, Inc. 179 477 Current contingent consideration $ 2,775 $ 2,842 Hyperspring, LLC $ 2,130 $ 1,948 Contingent consideration $ 2,130 $ 1,948

Contract Receivables

Contract Receivables	6 Months Ended
	Jun. 30, 2015
Contract Receivables [Abstract]
Contract Receivables	5. Contract Receivables Contract receivables represent balances due from a broad base of both domestic and international customers. All contract receivables are considered to be collectible within twelve months. Recoverable costs and accrued profit not billed represent costs incurred and associated profit accrued on contracts that will become billable upon future milestones or completion of contracts. The components of contract receivables are as follows: (in thousands) June 30, December 31, 2015 2014 Billed receivables $ 10,410 $ 10,792 Recoverable costs and accrued profit not billed 5,554 5,060 Allowance for doubtful accounts (2 ) (22 ) Total contract receivables, net $ 15,962 $ 15,830 Recoverable costs and accrued profit not billed totaled $5.6 million and $5.1 million as of June 30, 2015 and December 31, 2014, respectively. During July 2015, the Company invoiced $2.2 million of the unbilled amounts. The following customers accounted for more than 10% of the Company's consolidated contract receivables as of June 30, 2015 and December 31, 2014, respectively: June 30, 2015 December 31, 2014 China Nuclear Power Engineering Company 15.2 % 3.9 % State Nuclear Power Automation System Engineering Co. 5.8 % 10.2 %

Software Development Costs

Software Development Costs	6 Months Ended
	Jun. 30, 2015
Software Development Costs [Abstract]
Software Development Costs	6. Software Development Costs Certain computer software development costs are capitalized in the accompanying consolidated balance sheets. Capitalization of computer software development costs begins upon the establishment of technological feasibility. Capitalization ceases and amortization of capitalized costs begins when the software product is commercially available for general release to customers. Amortization of capitalized computer software development costs is included in cost of revenue and is determined using the straight-line method over the remaining estimated economic life of the product, typically three years. On an annual basis, and more frequently as conditions indicate, the Company assesses the recovery of the unamortized software development costs by estimating the net undiscounted cash flows expected to be generated by the sale of the product. If the undiscounted cash flows are not sufficient to recover the unamortized software costs the Company will write-down the investment to its estimated fair value based on future undiscounted cash flows. The excess of any unamortized software development costs over the related net realizable value is written down and charged to cost of revenue. Software development costs capitalized were $432,000 and $938,000 for the three and six months ended June 30, 2015, respectively, and $194,000 and $349,000 for the three and six months ended June 30, 2014, respectively. Total amortization expense was $105,000 and $195,000 for the three and six months ended June 30, 2015, respectively, and $63,000 and $95,000 for the three and six months ended June 30, 2014, respectively.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2015
Goodwill and Intangible Assets [Abstract]
Goodwill and Intangible Assets	7. Goodwill and Intangible Assets Goodwill We review goodwill for impairment annually as of November 30 and whenever events or changes in circumstances indicate the carrying value of an asset may not be recoverable. We test 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. generally accepted accounting principles. After the acquisition of Hyperspring, LLC ("Hyperspring") on November 14, 2014, our reporting units are: (i) Performance Improvement Solutions and (ii) Staff Augmentation. At June 30, 2015 and December 31, 2014, the $5.6 million of goodwill balance was related to the Hyperspring acquisition and is assigned to our Staff Augmentation segment. Accounting Standards Update ("ASU") 2011-08, Testing Goodwill for Impairment Intangible Assets Subject to Amortization The Company's intangible assets include amounts recognized in connection with business acquisitions, including customer relationships, contract backlog and technology. Intangible assets are initially valued at fair market value using generally accepted valuation methods appropriate for the type of intangible asset. Amortization is recognized on a straight-line basis over the estimated useful life of the intangible assets, except for contract backlog and contractual customer relationships which are recognized in proportion to the related projected revenue streams. The Company reviews specific definite-lived intangibles for impairment when events occur that may impact their value in accordance with the respective accounting guidance for long-lived assets.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2015
Fair Value of Financial Instruments [Abstract]
Fair Value of Financial Instruments	8. Fair Value of Financial Instruments ASC 820, Fair Value Measurements and Disclosures 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. 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 Company considers the recorded value of certain of its financial assets and liabilities, which consist primarily of accounts receivable and accounts payable, to approximate the fair value of the respective assets and liabilities at June 30, 2015 and December 31, 2014 based upon the short-term nature of the assets and liabilities. The following table presents assets and liabilities measured at fair value at June 30, 2015: Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (in thousands) (Level 1) (Level 2) (Level 3) Total Money market funds $ 9,332 $ - $ - $ 9,332 Foreign exchange contracts - 115 - 115 Total assets $ 9,332 $ 115 $ - $ 9,447 Foreign exchange contracts $ - $ (133 ) $ - $ (133 ) Total liabilities $ - $ (133 ) $ - $ (133 ) The following table presents assets and liabilities measured at fair value at December 31, 2014: Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (in thousands) (Level 1) (Level 2) (Level 3) Total Money market funds $ 11,661 $ - $ - $ 11,661 Foreign exchange contracts - 92 - 92 Total assets $ 11,661 $ 92 $ - $ 11,753 Foreign exchange contracts $ - $ (24 ) $ - $ (24 ) Total liabilities $ - $ (24 ) $ - $ (24 )

Derivative Instruments

Derivative Instruments	6 Months Ended
	Jun. 30, 2015
Derivative Instruments [Abstract]
Derivative Instruments	9. Derivative Instruments The Company utilizes forward foreign currency exchange contracts to manage market risks associated with the fluctuations in foreign currency exchange rates. It is the Company's policy to use such derivative financial instruments to protect against market risk arising in the normal course of business in order to reduce the impact of these exposures. The Company minimizes credit exposure by limiting counterparties to nationally recognized financial institutions. As of June 30, 2015, the Company had foreign exchange contracts outstanding of approximately 2.6 million Euro, 0.4 million Pounds Sterling, and 0.5 million Australian Dollars at fixed rates. The contracts expire on various dates through December 2016. At December 31, 2014, the Company had contracts outstanding of approximately 1.4 million Euro, 0.3 million Pounds Sterling, 0.8 million Australian Dollars, and 0.5 million Malaysian Ringgits at fixed rates. The Company has not designated any of the foreign exchange contracts outstanding as hedges and has recorded the estimated fair value of the contracts in the consolidated balance sheets as follows: June 30, December 31, (in thousands) 2015 2014 Asset derivatives Prepaid expenses and other current assets $ 115 $ 71 Other assets - 21 115 92 Liability derivatives Other current liabilities (35 ) (23 ) Other liabilities (98 ) (1 ) (133 ) (24 ) Net fair value $ (18 ) $ 68 The changes in the fair value of the foreign exchange contracts are included in net gain (loss) on derivative instruments 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 net gain (loss) on derivative instruments in the consolidated statements of operations. For the three and six months ended June 30, 2015 and 2014, the Company recognized a net gain (loss) on its derivative instruments as outlined below: Three Months ended June 30, Six Months ended June 30, (in thousands) 2015 2014 2015 2014 Foreign exchange contracts- change in fair value $ (86 ) $ 11 $ (86 ) $ 254 Remeasurement of related contract receivables, billings in excess of revenue earned, and subcontractor accruals 55 (6 ) 7 (145 ) Gain (loss) on derivative instruments, net $ (31 ) $ 5 $ (79 ) $ 109

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2015
Stock-Based Compensation [Abstract]
Stock-Based Compensation	10. Stock-Based Compensation The Company recognizes compensation expense for all equity-based compensation awards issued to employees, directors and non-employees that are expected to vest. Compensation cost is based on the fair value of awards as of the grant date. The Company recognized $137,000 and $161,000 of stock-based compensation expense for the three months ended June 30, 2015 and 2014, respectively, under the fair value method and recognized $271,000 and $339,000 of stock-based compensation expense for the six months ended June 30, 2015 and 2014, respectively. The Company granted 0 and 50,000 stock options for the three and six months ended June 30, 2015, respectively. The fair value of the options granted for the six months ended June 30, 2015 was $40,000. The Company granted 0 and 60,000 stock options for the three and six months ended June 30, 2014, respectively. The fair value of the granted options at the grant date was $56,000.

Long-Term Debt

Long-Term Debt	6 Months Ended
	Jun. 30, 2015
Long-Term Debt [Abstract]
Long-Term Debt	11. Long-Term Debt At June 30, 2015 and December 31, 2014, the Company had no long-term debt. Lines of Credit Susquehanna Bank At June 30, 2015, the Company had a Master Loan and Security Agreement and Revolving Credit Note with Susquehanna Bank ("Susquehanna"). The Company and its subsidiary, GSE Performance Solutions, Inc., were jointly and severally liable as co-borrowers. The Loan Agreement provides a $7.5 million revolving line of credit for the purpose of (i) issuing stand-by letters of credit and (ii) providing working capital. Working capital advances bear interest at a rate equal to the Wall Street Journal Prime Rate of Interest, floating with a floor of 4 1/2%. The agreement expires on June 30, 2016. As collateral for the Company's obligations, the Company granted a first lien and security interest in all of the assets of the Company, including but not limited to, accounts receivable, proceeds and products, intangibles, trademarks, patents, intellectual property, machinery and equipment. On September 9, 2014, the Company signed a Third Comprehensive Amendment to the Master Loan and Security Agreement. According to the Third Amendment, the Company is to maintain a segregated cash collateral account at Susquehanna Bank equal to the greater of (i) $3.0 million or (ii) the aggregate principal amounts of all Loans outstanding under the Revolving Credit Facility (including any issued and outstanding letters of credit, working capital advances, and negative foreign exchange positions) as security for the Company's obligations. Under this Amendment, Susquehanna Bank shall have complete and unconditional control over the cash collateral account. On September 30, 2014, Susquehanna Bank collateralized the outstanding letters of credit issued under the line of credit. At June 30, 2015 and December 31, 2014, the cash collateral account totaled $4.5 million and $4.2 million, respectively. The balances were classified as restricted cash on the balance sheet. Effective for the quarter ending June 30, 2015, Susquehanna Bank modified the financial covenants in the Company's financing documents. The amendment to the Master Loan and Security Agreement reduced the number of restrictive covenants from four to two, as depicted below. The credit agreement still contains certain restrictive covenants regarding future acquisitions and incurrence of debt. As of Covenant June 30, 2015 Minimum tangible capital base Must Exceed $10.5 million $13.1 million Quick ratio Must Exceed 1.00 : 1.00 1.52 : 1.00 As of June 30, 2015, the Company was in compliance with its covenants as defined above. IberiaBank At June 30, 2015, Hyperspring, LLC has a $1.0 million working capital line of credit with IberiaBank for a one year period. Under the executed promissory note, interest is payable monthly at the rate of 1.00 percentage points over the prime rate of interest as published in the money rate section of the Wall Street Journal resulting in an effective interest rate of 4.25%. The line is secured by all accounts of Hyperspring and guaranteed by GSE Systems, Inc. On July 6, 2015, Hyperspring renewed its $1.0 million working capital line of credit with IberiaBank under the same terms for a one year period. The line of credit expires on July 6, 2016. Letters of Credit and Bonds As of June 30, 2015, the Company has fourteen standby letters of credit and one surety bond totaling $4.5 million which represent advance payment and performance bonds on twelve contracts. The Company has deposited the full value of fourteen standby letters of credit in escrow accounts, amounting to $4.5 million, which have been restricted in that the Company does not have access to these funds until the related letters of credit have expired. The cash has been recorded on the Company's balance sheet at June 30, 2015 as restricted cash.

Product Warranty

Product Warranty	6 Months Ended
	Jun. 30, 2015
Product Warranty [Abstract]
Product Warranty	12. Product Warranty As the Company recognizes revenue under the percentage-of-completion method, it provides an accrual for estimated future warranty costs based on historical experience and projected claims. The activity in the warranty account is as follows: (in thousands) Balance at December 31, 2014 $ 1,456 Warranty provision 369 Warranty claims (209 ) Currency adjustment (43 ) Balance at June 30, 2015 $ 1,573

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2015
Income Taxes [Abstract]
Income Taxes	13. Income Taxes The Company files in the United States federal jurisdiction and in several state and foreign jurisdictions. Because of the net operating loss carryforwards, the Company is subject to U.S. federal and state income tax examinations from years 1997 forward and is subject to foreign tax examinations by tax authorities for years 2007 and forward. Open tax years related to state and foreign jurisdictions remain subject to examination but are not considered material to our financial position, results of operations or cash flows. An uncertain tax position taken or expected to be taken in a tax return is recognized in the financial statements when it is more likely than not (i.e., a likelihood of more than 50%) that the position would be sustained upon examination by tax authorities that have full knowledge of all relevant information. A recognized tax position is then measured at the largest amount of benefit that is greater than 50% likely of being realized upon ultimate settlement. Interest and penalties related to income taxes are accounted for as income tax expense. The Company has appropriately accounted for its uncertain tax positions. The Company expects to pay income taxes in India and the UK in 2015. In 2014, the Company paid income taxes in the UK and India. The Company has a full valuation allowance on its U.S., Swedish, and Chinese net deferred tax assets at June 30, 2015.

Preferred Stock Rights

Preferred Stock Rights	6 Months Ended
	Jun. 30, 2015
Preferred Stock Rights [Abstract]
Preferred Stock Rights [Text Block]	14. Preferred Stock Rights On March 21, 2011, the Board of Directors of the Company declared a dividend, payable to holders of record as of the close of business on April 1, 2011, of one preferred stock purchase right (a "Right") for each outstanding share of common stock, par value $0.01 per share, of the Company (the "Common Stock"). In addition, the Company will issue one Right with each new share of Common Stock issued. In connection therewith, on March 21, 2011, the Company entered into a Stockholder Protection Rights Agreement (as amended from time to time, the Rights Agreement) with Continental Stock Transfer & Trust Company, as Rights Agent, which has a term of three years, unless amended by the Board of Directors in accordance with the terms of the Rights Agreement. On March 21, 2014, the Rights Agreement was amended to extend the term an additional two years. The Rights Agreement will now expire on March 21, 2016. The Rights trade with and are inseparable from the Common Stock and are not evidenced by separate certificates unless they become exercisable. Each Right entitles its holder to purchase from the Company one-hundredth of a share of participating preferred stock having economic and voting terms similar to the Common Stock at an exercise price of $8.00 per Right, subject to adjustment in accordance with the terms of the Rights Agreement, once the Rights become exercisable. Under the Rights Agreement, the Rights become exercisable if any person or group acquires 20% or more of the Common Stock or, in the case of any person or group that owned 20% or more of the Common Stock as of March 21, 2011, upon the acquisition of any additional shares by such person or group. The Company, its subsidiaries, employee benefit plans of the Company or any of its subsidiaries and any entity holding Common Stock for or pursuant to the terms of any such plan are accepted. Upon exercise of the Right in accordance with the Rights Agreement, the holder would be able to purchase a number of shares of Common Stock from the Company having an aggregate market price (as defined in the Rights Agreement) equal to twice the then-current exercise price for an amount in cash equal to the then-current exercise price. In addition, the Company may, in certain circumstances and pursuant to the terms of the Rights Agreement, exchange the Rights for one share of Common Stock or an equivalent security for each Right or, alternatively, redeem the Rights for $0.001 per Right. The Rights will not prevent a takeover of our Company, but may cause substantial dilution to a person that acquires 20% or more of the Company's Common Stock.

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2015
Segment Information [Abstract]
Segment Information	15. Segment Information The Company has two reportable business segments. The Performance Improvement Solutions business 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 training applications include turnkey and custom training services, while engineering services include plant design verification and validation. We provide these services across all our market segments. Contracts typically range from ten months to three years. The Staff Augmentation services segment provides specialized workforce solutions primarily to the U.S. nuclear industry, working at our clients' facilities. This business is managed through our Hyperspring, LLC subsidiary. The business model, management focus, margins and other factors clearly separate this business line from the rest of the GSE product and service portfolio. Hyperspring has been providing these services since 2005. 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 loss before income tax expense: (in thousands) Three Months ended June 30, Six Months ended June 30, 2015 2014 2015 2014 Contract revenue: Performance Improvement Solutions $ 8,191 $ 8,276 $ 17,007 $ 17,000 Staff Augmentation 5,441 - 10,621 - $ 13,632 $ 8,276 $ 27,628 $ 17,000 Operating income (loss): Performance Improvement Solutions $ (1,192 ) $ (1,955 ) $ (1,968 ) $ (4,023 ) Staff Augmentation 362 - 662 - Loss on change in fair value of contingent consideration, net (513 ) (20 ) (433 ) (47 ) Operating loss $ (1,343 ) $ (1,975 ) $ (1,739 ) $ (4,070 ) Interest income, net 21 28 48 59 Gain (loss) on derivative instruments, net (31 ) 5 (79 ) 109 Other income (expense), net (41 ) 3 (80 ) (7 ) Loss before income taxes $ (1,394 ) $ (1,939 ) $ (1,850 ) $ (3,909 )

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2015
Subsequent Events [Abstract]
Subsequent Events [Text Block]	16. Subsequent Events In July 2015, GSE entered into a separation and release agreement with James A. Eberle, Chief Executive Officer. Effective July 31, 2015, Mr. Eberle resigned his position as Chief Executive Officer and as a director on GSE's board of directors. GSE will incur $380,000 in severance expense related to the termination of Mr. Eberle. GSE appointed Kyle Loudermilk as Chief Executive Officer effective August 3, 2015. In connection with his appointment, GSE's Board of Directors granted 850,000 restricted stock units ("RSUs") to Mr. Loudermilk for a six year performance period ending on June 30, 2021. The RSUs granted to Mr. Loudermilk are classified as equity awards because the RSUs will be paid in GSE common stock upon vesting. The RSUs have four vesting tranches based on GSE's stock price. The 850,000 RSUs will vest as follows: · 200,000 RSUs will vest if the Volume Weighted Average Price ("VWAP") of the Company's common stock as quoted by the NYSE MKT exceeds $2.50 for a 90 consecutive trading day period. · An additional 200,000 RSUs will vest if the VWAP of the Company's common stock as quoted by the NYSE MKT exceeds $3.25 for a 90 consecutive trading day period. · An additional 200,000 RSUs will vest if the VWAP of the Company's common stock as quoted by the NYSE MKT exceeds $4.25 for a 90 consecutive trading day period. · An additional 250,000 RSUs will vest if the VWAP of the Company's common stock as quoted by the NYSE MKT exceeds $6.00 for a 90 consecutive trading day period. The RSU equity awards are measured at the grant date fair value and are not remeasured at the end of the reporting period. Total expense related to the RSUs is expected to be $631,000. The RSUs will be amortized over the life that each tranche is expected to vest, or as follows: (in thousands) Five months ended December 31, 2015 $ 89 Year ended December 31, 2016 212 Year ended December 31, 2017 205 Year ended December 31, 2018 98 Year ended December 31, 2019 27 $ 631 On July 6, 2015, Hyperspring, LLC renewed its $1.0 million working capital line of credit with IberiaBank for a one year period. Under the executed promissory note, interest is payable monthly at the rate of 1.00 percentage points over the prime rate of interest as published in the money rate section of the Wall Street Journal resulting in an effective interest rate of 4.25%. The line is secured by all accounts of Hyperspring and guaranteed by GSE Systems, Inc. The line of credit expires on July 6, 2016.

Basis of Presentation and Rev24

Basis of Presentation and Revenue Recognition (Policies)	6 Months Ended
	Jun. 30, 2015
Basis of Presentation and Revenue Recognition [Abstract]
Basis of Presentation	Basis of Presentation The consolidated interim financial statements included herein have been prepared by GSE Systems, Inc. (the "Company" or "GSE") without independent audit. 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 ("GAAP") have been condensed or omitted. 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, 2014 filed with the Securities and Exchange Commission on March 19, 2015. Certain reclassifications have been made to prior period amounts to conform to the current presentation. The Company has two reportable segments as follows: · Performance Improvement Solutions Our Performance Improvement Solutions business segment encompasses all of the solution-oriented technologies and services traditionally associated with GSE which focus on both our client's people and their plants and operations. This segment includes various simulation, training and engineering products and services delivered across the breadth of industries we serve. Our simulation solutions include platforms ranging from (1) the non-specific plant systems of our EnVision product line used to teach fundamental processes to newly hired employees, to (2) custom plant-specific simulators used to train plant operators, to (3) engineering-grade simulation solutions used to help clients verify and validate control systems prior to new plant construction or modification of existing plants, to (4) engineering-grade simulation solutions used for human factors engineering. Training applications include turnkey and custom training services and 3D visualization training products to make training more effective. Our engineering services include plant design, automation and control systems design, functional safety and compliance analysis, and engineering consultations. · Staff Augmentation Staff Augmentation services provide specialized workforce solutions primarily to the nuclear industry. These employees work at our clients' facilities under client direction. Examples of staff augmentation positions include instructors, procedure writers, work management specialists, planners, outage execution specialists, corrective action and self-assessment specialists, and training material developers. This business is managed through our Hyperspring, LLC subsidiary. The business model, management focus, margins and other factors clearly separate this business line from the rest of the GSE product and service portfolio. Hyperspring has been providing these services since 2005. Financial information about the two business segments are provided in Note 15 of the accompanying Consolidated Financial Statements. The preparation of financial statements in conformity with 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 long-term contracts, product warranties, capitalization of software development costs, valuation of goodwill and intangible assets acquired, valuation of contingent consideration issued in business acquisitions, and the recoverability of deferred tax assets. Actual results could differ from these estimates and those differences could be material.
Revenue Recognition	Revenue Recognition on Long-Term Contracts The Company recognizes revenue through (1) fixed price contracts on the sale of uniquely designed systems containing hardware, software and other materials as well as (2) time and material contracts primarily through staff augmentation support and service agreements. In accordance with U.S. generally accepted accounting principles ("GAAP"), our Performance Improvement Solutions segment accounts for revenue under fixed-price contracts using the percentage-of-completion method. This methodology recognizes revenue and earnings as work progresses on the contract and is based on an estimate of the revenue and earnings earned to date, less amounts recognized in prior periods. The Company bases its estimate of the degree of completion of the contract by reviewing the relationship of costs incurred to date to the expected total costs that will be incurred on the project. Estimated contract earnings are reviewed and revised periodically as the work progresses, and the cumulative effect of any change in estimate is recognized in the period in which the change is identified. Estimated losses are charged against earnings in the period such losses are identified. The Company recognizes revenue arising from contract claims either as income or as an offset against a potential loss only when the amount of the claim can be estimated reliably and realization is probable and there is a legal basis of the claim. 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. As the Company recognizes revenue under the percentage-of-completion method, it provides an accrual for estimated future warranty costs based on historical and projected claims experience. The Company's long-term contracts generally provide for a one-year warranty on parts, labor and any bug fixes as it relates to software embedded in the systems. The Company's system design contracts do not normally provide for "post customer support service" (PCS) in terms of software upgrades, software enhancements or telephone support. In order to obtain PCS, the customers normally must purchase a separate contract. Such PCS arrangements are generally for a one-year period renewable annually and include customer support, unspecified software upgrades, and maintenance releases. The Company recognizes revenue from these contracts ratably over the life of the agreements. Revenue from the sale of software licenses which do not require significant modifications or customization for the Company's modeling tools are recognized when the license agreement is signed, the license fee is fixed and determinable, delivery has occurred, and collection is considered probable. We evaluate our contracts for multiple deliverables under ASC 605- 25 Revenue Recognition-Multiple Element Arrangements The Company recognizes revenue under time and materials contracts primarily from staff augmentation and certain consulting agreements. Revenue on time and material contracts is recognized as services are rendered and performed. Under a typical time-and-materials billing arrangement, customers are billed on a regularly scheduled basis, such as biweekly or monthly. At the end of each accounting period, revenue is estimated and accrued for services performed since the last billing cycle. These unbilled amounts are billed the following month.

Recent Accounting Pronounceme25

Recent Accounting Pronouncements (Policies)	6 Months Ended
	Jun. 30, 2015
Recent Accounting Pronouncements Not Yet Adopted [Abstract]
New accounting standards	2. Recent Accounting Pronouncements Not Yet Adopted In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers

Basis of Presentation and Rev26

Basis of Presentation and Revenue Recognition (Tables)	6 Months Ended
	Jun. 30, 2015
Basis of Presentation and Revenue Recognition [Abstract]
Percentage of revenue by major customers	For the three and six months ended June 30, 2015 and 2014, the following customers provided more than 10% of the Company's consolidated revenue: Three Months ended June 30, Six Months ended June 30, 2015 2014 2015 2014 Tennessee Valley Authority 18.7 % 0.0 % 19.9 % 0.0 % Public Service Enterprise Group Inc. 11.7 % 0.6 % 10.2 % 0.6 %

Basic and Diluted Loss Per Co27

Basic and Diluted Loss Per Common Share (Tables)	6 Months Ended
	Jun. 30, 2015
Basic and Diluted Loss Per Common Share [Abstract]
Number of common shares and common share equivalents used in the determination of basic and diluted income (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, 2015 2014 2015 2014 Numerator: Net loss $ (1,467 ) $ (1,986 ) $ (2,011 ) $ (4,010 ) Denominator: Weighted-average shares outstanding for basic earnings per share 17,887,859 17,887,859 17,887,859 17,887,859 Effect of dilutive securities: Employee stock options - - - - Adjusted weighted-average shares outstanding and assumed conversions for diluted earnings per share 17,887,859 17,887,859 17,887,859 17,887,859 Shares related to dilutive securities excluded because inclusion would be anti-dilutive 2,513,321 2,736,703 2,580,942 2,727,435

Acquisition (Tables)

Acquisition (Tables)	6 Months Ended
	Jun. 30, 2015
Acquisition [Abstract]
Schedule of Business Acquisitions, by Acquisition	The following table summarizes the purchase price and purchase price allocation for the acquisition of Hyperspring, LLC, acquired on November 14, 2014. (in thousands) Cash purchase price $ 3,000 Fair value of contingent consideration 3,953 Total purchase price $ 6,953 Purchase price allocation: Cash $ 152 Contract receivables 1,719 Prepaid expenses and other current assets 23 Property and equipment, net 12 Intangible assets 779 Goodwill 5,612 Total assets 8,297 Line of credit 749 Accounts payable, accrued expenses, and other liabilities 586 Billings in excess of revenue earned 9 Total liabilities 1,344 Net assets acquired $ 6,953
Schedule of Pro Forma Results	Pro forma results. (in thousands except per share data) (unaudited) Three Months ended Six Months ended June 30, June 30, Pro forma financial information including the acquisition of Hyperspring 2015 2014 2015 2014 Revenue $ 13,632 $ 12,760 $ 27,628 $ 25,968 Operating loss (918 ) (1,943 ) (1,506 ) (4,013 ) Net loss (1,043 ) (1,955 ) (1,777 ) (3,955 ) Loss per common share — basic $ (0.06 ) $ (0.11 ) $ (0.10 ) $ (0.22 ) Loss per common share — diluted $ (0.06 ) $ (0.11 ) $ (0.10 ) $ (0.22 )
Schedule of Business Acquisitions by Acquisition, Contingent Consideration [Table Text Block]	As of June 30, 2015 and December 31, 2014, current contingent consideration totaled $2.8 million and $2.8 million, respectively. As of June 30, 2015 and December 31, 2014, we also had accrued contingent consideration totaling $2.1 million and $1.9 million, respectively, which represents the portion of contingent consideration estimated to be payable greater than twelve months from the balance sheet date. (in thousands) June 30, December 31, 2015 2014 Hyperspring, LLC $ 2,383 $ 2,152 IntelliQlik, LLC 213 213 EnVision Systems, Inc. 179 477 Current contingent consideration $ 2,775 $ 2,842 Hyperspring, LLC $ 2,130 $ 1,948 Contingent consideration $ 2,130 $ 1,948

Contract Receivables (Tables)

Contract Receivables (Tables)	6 Months Ended
	Jun. 30, 2015
Contract Receivables [Abstract]
Components of contract receivables	The components of contract receivables are as follows: (in thousands) June 30, December 31, 2015 2014 Billed receivables $ 10,410 $ 10,792 Recoverable costs and accrued profit not billed 5,554 5,060 Allowance for doubtful accounts (2 ) (22 ) Total contract receivables, net $ 15,962 $ 15,830
Concentration Risk [Line Items]
Contract receivable by major customers	The following customers accounted for more than 10% of the Company's consolidated contract receivables as of June 30, 2015 and December 31, 2014, respectively: June 30, 2015 December 31, 2014 China Nuclear Power Engineering Company 15.2 % 3.9 % State Nuclear Power Automation System Engineering Co. 5.8 % 10.2 %

Fair Value of Financial Instr30

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2015
Fair Value of Financial Instruments [Abstract]
Assets and liabilities measured at fair value	The following table presents assets and liabilities measured at fair value at June 30, 2015: Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (in thousands) (Level 1) (Level 2) (Level 3) Total Money market funds $ 9,332 $ - $ - $ 9,332 Foreign exchange contracts - 115 - 115 Total assets $ 9,332 $ 115 $ - $ 9,447 Foreign exchange contracts $ - $ (133 ) $ - $ (133 ) Total liabilities $ - $ (133 ) $ - $ (133 ) The following table presents assets and liabilities measured at fair value at December 31, 2014: Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (in thousands) (Level 1) (Level 2) (Level 3) Total Money market funds $ 11,661 $ - $ - $ 11,661 Foreign exchange contracts - 92 - 92 Total assets $ 11,661 $ 92 $ - $ 11,753 Foreign exchange contracts $ - $ (24 ) $ - $ (24 ) Total liabilities $ - $ (24 ) $ - $ (24 )

Derivative Instruments (Tables)

Derivative Instruments (Tables)	6 Months Ended
	Jun. 30, 2015
Derivative Instruments [Abstract]
Estimated fair value of the contracts in the consolidated balance sheets	The Company has not designated any of the foreign exchange contracts outstanding as hedges and has recorded the estimated fair value of the contracts in the consolidated balance sheets as follows: June 30, December 31, (in thousands) 2015 2014 Asset derivatives Prepaid expenses and other current assets $ 115 $ 71 Other assets - 21 115 92 Liability derivatives Other current liabilities (35 ) (23 ) Other liabilities (98 ) (1 ) (133 ) (24 ) Net fair value $ (18 ) $ 68
Derivative Instruments, Gain (Loss) [Table Text Block]	For the three and six months ended June 30, 2015 and 2014, the Company recognized a net gain (loss) on its derivative instruments as outlined below: Three Months ended June 30, Six Months ended June 30, (in thousands) 2015 2014 2015 2014 Foreign exchange contracts- change in fair value $ (86 ) $ 11 $ (86 ) $ 254 Remeasurement of related contract receivables, billings in excess of revenue earned, and subcontractor accruals 55 (6 ) 7 (145 ) Gain (loss) on derivative instruments, net $ (31 ) $ 5 $ (79 ) $ 109

Long-Term Debt (Tables)

Long-Term Debt (Tables)	6 Months Ended
	Jun. 30, 2015
Long-Term Debt [Abstract]
Susquehanna Bank Loan Agreement debt covenants	Effective for the quarter ending June 30, 2015, Susquehanna Bank modified the financial covenants in the Company's financing documents. The amendment to the Master Loan and Security Agreement reduced the number of restrictive covenants from four to two, as depicted below. The credit agreement still contains certain restrictive covenants regarding future acquisitions and incurrence of debt. As of Covenant June 30, 2015 Minimum tangible capital base Must Exceed $10.5 million $13.1 million Quick ratio Must Exceed 1.00 : 1.00 1.52 : 1.00 As of June 30, 2015, the Company was in compliance with its covenants as defined above.

Product Warranty (Tables)

Product Warranty (Tables)	6 Months Ended
	Jun. 30, 2015
Product Warranty [Abstract]
Activities in the product warranty accounts	As the Company recognizes revenue under the percentage-of-completion method, it provides an accrual for estimated future warranty costs based on historical experience and projected claims. The activity in the warranty account is as follows: (in thousands) Balance at December 31, 2014 $ 1,456 Warranty provision 369 Warranty claims (209 ) Currency adjustment (43 ) Balance at June 30, 2015 $ 1,573

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2015
Segment Information [Abstract]
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]	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 loss before income tax expense: (in thousands) Three Months ended June 30, Six Months ended June 30, 2015 2014 2015 2014 Contract revenue: Performance Improvement Solutions $ 8,191 $ 8,276 $ 17,007 $ 17,000 Staff Augmentation 5,441 - 10,621 - $ 13,632 $ 8,276 $ 27,628 $ 17,000 Operating income (loss): Performance Improvement Solutions $ (1,192 ) $ (1,955 ) $ (1,968 ) $ (4,023 ) Staff Augmentation 362 - 662 - Loss on change in fair value of contingent consideration, net (513 ) (20 ) (433 ) (47 ) Operating loss $ (1,343 ) $ (1,975 ) $ (1,739 ) $ (4,070 ) Interest income, net 21 28 48 59 Gain (loss) on derivative instruments, net (31 ) 5 (79 ) 109 Other income (expense), net (41 ) 3 (80 ) (7 ) Loss before income taxes $ (1,394 ) $ (1,939 ) $ (1,850 ) $ (3,909 )

Subsequent Events (Tables)

Subsequent Events (Tables)	6 Months Ended
	Jun. 30, 2015
Subsequent Events [Abstract]
Schedule of Subsequent Events [Table Text Block]	The RSU equity awards are measured at the grant date fair value and are not remeasured at the end of the reporting period. Total expense related to the RSUs is expected to be $631,000. The RSUs will be amortized over the life that each tranche is expected to vest, or as follows: (in thousands) Five months ended December 31, 2015 $ 89 Year ended December 31, 2016 212 Year ended December 31, 2017 205 Year ended December 31, 2018 98 Year ended December 31, 2019 27 $ 631

Basis of Presentation and Rev36

Basis of Presentation and Revenue Recognition (Details) - Segment	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Basis of Presentation and Revenue Recognition [Abstract]
Number of reportable segment			2
Term of warranty (in years)			1 year
Period of post customer support service (PCS) (in years)			1 year
Revenue [Member]
Revenue by major customers [Abstract]
Concentration Risk, Benchmark Description			the following customers provided more than 10% of the Company’s consolidated revenue
Revenue [Member] | Tennessee Valley Authority [Member]
Revenue by major customers [Abstract]
Percentage of revenue contributed by major customers (in hundredths)	18.70%	0.00%	19.90%	0.00%
Revenue [Member] | Public Service Enterprise Group Inc. [Member]
Revenue by major customers [Abstract]
Percentage of revenue contributed by major customers (in hundredths)	11.70%	0.60%	10.20%	0.60%

Basic and Diluted Loss Per Co37

Basic and Diluted Loss Per Common Share (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Numerator:
Net loss	$ (1,467)	$ (1,986)	$ (2,011)	$ (4,010)
Denominator:
Weighted-average shares outstanding for basic earnings per share (in shares)	17,887,859	17,887,859	17,887,859	17,887,859
Effect of dilutive securities:
Employee stock options (in shares)	0	0	0	0
Adjusted weighted-average shares outstanding and assumed conversions for diluted earnings per share (in shares)	17,887,859	17,887,859	17,887,859	17,887,859
Shares related to dilutive securities excluded because inclusion would be anti-dilutive (in shares)	2,513,321	2,736,703	2,580,942	2,727,435

Acquisition (Details)

Acquisition (Details) - USD ($) $ / shares in Units, $ in Thousands	Nov. 14, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Business Combinations Purchase Price Allocation [Abstract]
Goodwill		$ 5,612		$ 5,612		$ 5,612
Business Acquisition, Pro Forma Information [Abstract]
Revenue		13,632	$ 12,760	27,628	$ 25,968
Operating loss		(918)	(1,943)	(1,506)	(4,013)
Net loss		$ (1,043)	$ (1,955)	$ (1,777)	$ (3,955)
Loss per common share - basic		$ (0.06)	$ (0.11)	$ (0.10)	$ (0.22)
Loss per common share - diluted		$ (0.06)	$ (0.11)	$ (0.10)	$ (0.22)
Hyperspring, LLC [Member]
Business Acquisition [Line Items]
Business Acquisition, Name of Acquired Entity	Hyperspring, LLC
Business Acquisition, Effective Date of Acquisition	Nov. 14, 2014
Percentage of ownership interest acquired (in hundredths)	100.00%
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 11,400
Cash purchase price	3,000
Fair value of contingent consideration	3,953
Total purchase price	6,953
Business Combinations Purchase Price Allocation [Abstract]
Cash	152
Contract receivables	1,719
Prepaid expenses and other current assets	23
Property, plant and equipment, net	12
Intangible assets	779
Goodwill	5,612
Total assets	8,297
Line of credit	749
Accounts payable, accrued expenses and other liabilities	586
Billings in excess of revenue earned	9
Total liabilities	1,344
Net assets acquired	$ 6,953
Hyperspring, LLC [Member] | Contingent Consideration Case 1 [Member]
Business Acquisition [Line Items]
Business Acquisition Contingent Consideration Agreement
Hyperspring, LLC [Member] | Contingent Consideration Case 1 [Member] | EBITDA Target [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 7,200
Business Combination, Contingent Consideration Arrangements, Description	certain EBITDA (earnings before interest, taxes, depreciation and amortization) targets
Hyperspring, LLC [Member] | Contingent Consideration Case 1 [Member] | Tennessee Valley Authority Renewal Target [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 1,200
Business Combination, Contingent Consideration Arrangements, Description	if Hyperspring is successful in renewing its contract with the Tennessee Valley Authority ("TVA") for a two year period for substantially the same scope as was currently being provided and with substantially the same economics. As a result of TVA delaying the long-term contract award, GSE amended the purchase agreement with the former members of Hyperspring to extend the date that Hyperspring has to obtain a long-term contract with TVA from May 15, 2015 to December 31, 2015. None of the other terms of the Hyperspring purchase agreement changed as a result of this amendment
Hyperspring, LLC [Member] | Contingent Consideration Case 2 [Member]
Business Acquisition [Line Items]
Business Acquisition Contingent Consideration Agreement
Hyperspring, LLC [Member] | Contingent Consideration Case 2 [Member] | EBITDA Target [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 8,400
Business Combination, Contingent Consideration Arrangements, Description	The $1.2 million TVA payment will then be divided into three increments of $400,000 each and added to the annual payments which will be made to the former Hyperspring members if they attain certain EBITDA (earnings before interest, taxes, depreciation and amortization) targets for the three-year period ending November 13, 2017
Hyperspring, LLC [Member] | Contractual Customer Relationships [Member]
Business Combinations Purchase Price Allocation [Abstract]
Intangible assets	$ 779
Hyperspring, LLC [Member] | Contractual Customer Relationships [Member] | Maximum [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years
Hyperspring, LLC [Member] | Customer Relationships [Member]
Business Combinations Purchase Price Allocation [Abstract]
Intangible assets	$ 0
Hyperspring, LLC [Member] | Developed Technology [Member]
Business Combinations Purchase Price Allocation [Abstract]
Intangible assets	0
Hyperspring, LLC [Member] | In Process Research and Development [Member]
Business Combinations Purchase Price Allocation [Abstract]
Intangible assets	0
Hyperspring, LLC [Member] | Domain Names and Other Marketing Related [Member]
Business Combinations Purchase Price Allocation [Abstract]
Intangible assets	$ 0
IntelliQlik, LLC [Member]
Business Acquisition [Line Items]
Business Acquisition, Name of Acquired Entity	IntelliQlik, LLC
Business Acquisition, Effective Date of Acquisition	Nov. 14, 2014
Percentage of ownership interest acquired (in hundredths)	50.00%
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 250
Payments to Acquire Equity Method Investments	$ 250

Acquisition, Contingent Conside

Acquisition, Contingent Consideration by Acquisition (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Other Current Liabilities [Member]
Business Acquisition, Contingent Consideration [Line Items]
Contingent Consideration, Liability	$ 2,775	$ 2,842
Other non current liabilities [Member]
Business Acquisition, Contingent Consideration [Line Items]
Contingent Consideration, Liability	2,130	1,948
Hyperspring, LLC [Member] | Other Current Liabilities [Member]
Business Acquisition, Contingent Consideration [Line Items]
Contingent Consideration, Liability	2,383	2,152
Hyperspring, LLC [Member] | Other non current liabilities [Member]
Business Acquisition, Contingent Consideration [Line Items]
Contingent Consideration, Liability	2,130	1,948
IntelliQlik, LLC [Member] | Other Current Liabilities [Member]
Business Acquisition, Contingent Consideration [Line Items]
Contingent Consideration, Liability	213	213
EnVision Systems, Inc. [Member] | Other Current Liabilities [Member]
Business Acquisition, Contingent Consideration [Line Items]
Contingent Consideration, Liability	$ 179	$ 477

Contract Receivables (Details)

Contract Receivables (Details) - USD ($) $ in Thousands	1 Months Ended	6 Months Ended
	Jul. 31, 2015	Jun. 30, 2015	Dec. 31, 2014
Contract Receivables [Abstract]
Maximum term of contract receivables (in months)		12 months
Components of contract receivables [Abstract]
Billed receivables		$ 10,410	$ 10,792
Recoverable costs and accrued profit not billed		5,554	5,060
Allowance for doubtful accounts		2	22
Total contract receivables, net		$ 15,962	$ 15,830
Unbilled Contract Receivables Billed during July 2015	$ 2,200
State Nuclear Power Automation System Engineering Co. [Member]
Concentration Risk [Line Items]
Percentage of contract receivables accounted by major customers (in hundredths)		5.80%	10.20%
China Nuclear Power Engineering Company [Member]
Concentration Risk [Line Items]
Percentage of contract receivables accounted by major customers (in hundredths)		15.20%	3.90%

Software Development Costs (Det

Software Development Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Software Development Costs [Abstract]
Total capitalized software development cost	$ 432	$ 194	$ 938	$ 349
Capitalized software amortization	105	63	195	95
Capitalized Computer Software, Period Increase (Decrease), Total	$ 327	$ 131	$ 743	$ 254

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2015USD ($)
Goodwill [Roll Forward]
Net book value at December 31, 2014	$ 5,612
Goodwill impairment loss	0
Foreign currency translation	0
Goodwill, Period Increase (Decrease), Total	0
Net book value at June 30, 2015	$ 5,612

Fair Value of Financial Instr43

Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Assets and liabilities measured at fair value [Abstract]
Money market fund	$ 9,332	$ 11,661
Foreign exchange contracts - Assets	115	92
Total assets	9,447	11,753
Foreign exchange contracts - Liabilities	133	24
Total liabilities	133	24
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets and liabilities measured at fair value [Abstract]
Money market fund	9,332	11,661
Foreign exchange contracts - Assets	0	0
Total assets	9,332	11,661
Foreign exchange contracts - Liabilities	0	0
Total liabilities	0	0
Significant Other Observable Inputs (Level 2) [Member]
Assets and liabilities measured at fair value [Abstract]
Money market fund	0	0
Foreign exchange contracts - Assets	115	92
Total assets	115	92
Foreign exchange contracts - Liabilities	133	24
Total liabilities	133	24
Significant Unobservable Inputs (Level 3) [Member]
Assets and liabilities measured at fair value [Abstract]
Money market fund	0	0
Foreign exchange contracts - Assets	0	0
Total assets	0	0
Foreign exchange contracts - Liabilities	0	0
Total liabilities	$ 0	$ 0

Derivative Instruments, Foreign

Derivative Instruments, Foreign Exchange Contracts (Details) - Foreign Exchange Contract [Member] € in Millions, £ in Millions, MYR in Millions, AUD in Millions	6 Months Ended
	Jun. 30, 2015EUR (€)	Jun. 30, 2015AUD	Jun. 30, 2015GBP (£)	Dec. 31, 2014EUR (€)	Dec. 31, 2014AUD	Dec. 31, 2014MYR	Dec. 31, 2014GBP (£)
Derivative [Line Items]
Derivative, Maturity Date	Dec. 1, 2016
United Kingdom, Pounds
Derivative [Line Items]
Foreign exchange contract outstanding | £			£ 0.4				£ 0.3
Euro Member Countries, Euro
Derivative [Line Items]
Foreign exchange contract outstanding	€ 2.6			€ 1.4
Australia, Dollars
Derivative [Line Items]
Foreign exchange contract outstanding | AUD		AUD 0.5			AUD 0.8
Malaysia, Ringgits
Derivative [Line Items]
Foreign exchange contract outstanding | MYR						MYR 0.5

Derivative Instruments, Fair Va

Derivative Instruments, Fair Values Derivatives, Balance Sheet Location (Details) - Foreign Exchange Contract [Member] - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Estimated fair value of the contracts in the consolidated balance sheets [Abstract]
Asset derivatives	$ 115	$ 92
Liability derivatives	133	24
Net fair value	(18)	68
Other Current Assets [Member]
Estimated fair value of the contracts in the consolidated balance sheets [Abstract]
Asset derivatives	115	71
Other Noncurrent Assets [Member]
Estimated fair value of the contracts in the consolidated balance sheets [Abstract]
Asset derivatives	0	21
Other Current Liabilities [Member]
Estimated fair value of the contracts in the consolidated balance sheets [Abstract]
Liability derivatives	35	23
Other Noncurrent Liabilities [Member]
Estimated fair value of the contracts in the consolidated balance sheets [Abstract]
Liability derivatives	$ 98	$ 1

Derivative Instruments, Gain (L

Derivative Instruments, Gain (Loss) On Derivative Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Foreign exchange contracts- change in fair value	$ (86)	$ 11	$ (86)	$ 254
Remeasurement of related contract receivables, billings in excess of revenue earned, and subcontractor accruals	55	(6)	7	(145)
(Gain) loss on derivative instruments, net	$ (31)	$ 5	$ (79)	$ 109

Stock-Based Compensation (Detai

Stock-Based Compensation (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Stock-Based Compensation [Abstract]
Pre-tax share based compensation expense	$ 137,000	$ 161,000	$ 271,000	$ 339,000
Shares granted under stock options (in shares)	0	0	50,000	60,000
Fair value of shares granted under stock option plan	$ 0	$ 0	$ 40,000	$ 56,000

Long-Term Debt (Details)

Long-Term Debt (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2015USD ($)Right	Dec. 31, 2014USD ($)
Performance Bond Abstract
Number of Standby Letters of Credit | Right	14
Number of Surety Bonds | Right	1
Letter of Credit and Surety Bonds	$ 4,500
Number of Performance and Bid Bonds issued in relation to contracts | Right	12
Number of stand by letters of credit deposited in escrow accounts | Right	14
Restricted cash and investments	$ 4,500	$ 4,200
Susquehanna Bank [Member] | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Principal amount of the line of credit	$ 7,500
Line of Credit Facility, Affiliated Borrower	GSE Systems, Inc. and GSE Performance Solutions, Inc.
Line of Credit Facility, Interest Rate Description	Working capital advances bear interest at a rate equal to the Wall Street Journal Prime Rate of Interest, floating with a floor of 4 1/2%
Line of credit facility term	2 years
Expiration date of credit agreement	Jun. 30, 2016
Minimum Cash Balance Requirement	$ 3,000
Susquehanna Bank [Member] | Revolving Credit Facility [Member] | Minimum tangible capital base [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Covenant Terms	Must Exceed $10.5 million
Line of Credit Facility, Covenant Compliance	$13.1 million
Susquehanna Bank [Member] | Revolving Credit Facility [Member] | Quick Ratio [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Covenant Terms	Must Exceed 1.00 : 1.00
Line of Credit Facility, Covenant Compliance	1.52 : 1.00
IberiaBank [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Principal amount of the line of credit	$ 1,000
Line of Credit Facility, Affiliated Borrower	Hyperspring, LLC
Line of Credit Facility, Interest Rate Description	interest is payable monthly at the rate of 1.00 percentage points over the prime rate of interest as published in the money rate section of the Wall Street Journal
Line of Credit Facility, Interest Rate During Period	4.25%
Line of Credit Facility, Collateral	The line is secured by all accounts of Hyperspring and guaranteed by GSE Systems, Inc.
Line of credit facility term	5 months 9 days
Expiration date of credit agreement	Jun. 30, 2015
Line of Credit Facility, Fair Value of Amount Outstanding	$ 0	$ 339

Product Warranty (Details)

Product Warranty (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Activities in product warranty account [Abstract]
Balance at December 31, 2014	$ 1,456
Warranty provision	369
Warranty claims	209
Currency adjustment	(43)
Standard Product Warranty Accrual, Period Increase (Decrease), Total	117	$ (211)
Balance at June 30, 2015	$ 1,573

Income Taxes (Details)

Income Taxes (Details)	6 Months Ended
	Jun. 30, 2015
Income Taxes [Abstract]
Minimum probability of uncertain tax position to be recognized (in hundredths)	50.00%
Minimum percentage of tax position realized upon ultimate settlement (in hundredths)	50.00%

Preferred Stock Rights (Details

Preferred Stock Rights (Details)	6 Months Ended
	Jun. 30, 2015$ / shares	Dec. 31, 2014$ / shares	Mar. 21, 2011sharesRight$ / shares
Preferred Stock Rights
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred Stock Rights Agreement [Member]
Preferred Stock Rights
Date on which dividends payable was declared by Board of Directors	Mar. 21, 2011
Number of preferred stock purchase right declared for each outstanding common stock (per right) | Right			1
Common stock, par value (in dollars per share)			$ 0.01
Number of rights issued with each issuance of common stock (per right) | Right			1
Term of stockholder protection rights agreement	3 years
Rights Agreement Amendment Date	Mar. 21, 2014
Term of the Rights Agreement extension	2 years
Rights Agreement Expiration Date	Mar. 21, 2016
Fraction of participating preferred stock that can be exercised as a result of right | shares			0.01
Exercise price of right (in dollars per share)			$ 8
Minimum percentage of common stock owned for right to become exercisable (in hundredths)			20.00%
Redemption price per right (in dollars per share)			0.001
Number of common stock exchange for rights (in shares) | shares			1
Percentage of common stock acquired to cause substantial dilution (in hundredths)			20.00%

Segment Information (Details)

Segment Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015USD ($)	Jun. 30, 2014USD ($)	Jun. 30, 2015USD ($)Segment	Jun. 30, 2014USD ($)
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Number of reportable business segments | Segment			2
Segment Reporting Information, Profit (Loss) [Abstract]
Revenues	$ 13,632	$ 8,276	$ 27,628	$ 17,000
Operating loss	(1,343)	(1,975)	(1,739)	(4,070)
Gain on change in fair value of contingent consideration, net	513	20	433	47
Interest income, net	21	28	48	59
(Gain) loss on derivative instruments, net	(31)	5	(79)	109
Other income (expense), net	(41)	3	(80)	(7)
Loss before income taxes	(1,394)	(1,939)	$ (1,850)	(3,909)
Performance Improvement Solutions [Member]
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Contract range, minimum			10 months
Contract range, maximum			3 years
Segment Reporting Information, Profit (Loss) [Abstract]
Revenues	8,191	8,276	$ 17,007	17,000
Operating loss	(1,192)	(1,955)	(1,968)	(4,023)
Staff Augmentation [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Revenues	5,441	0	10,621	0
Operating loss	$ 362	$ 0	$ 662	$ 0

Subsequent Events (Details)

Subsequent Events (Details) - Jun. 30, 2015	USD ($)Right$ / sharesshares
IberiaBank [Member] | Line of Credit [Member]
Subsequent Event [Line Items]
Line of Credit Facility, Affiliated Borrower	Hyperspring, LLC
Principal amount of the line of credit	$ 1,000,000
Expiration date of credit agreement	Jun. 30, 2015
Line of credit facility term	5 months 9 days
Line of Credit Facility, Collateral	The line is secured by all accounts of Hyperspring and guaranteed by GSE Systems, Inc.
Line of Credit Facility, Interest Rate Description	interest is payable monthly at the rate of 1.00 percentage points over the prime rate of interest as published in the money rate section of the Wall Street Journal
Line of Credit Facility, Interest Rate During Period	4.25%
Subsequent Event [Member]
Subsequent Event [Line Items]
Subsequent Event, Date	Jul. 31, 2015
Severance Costs	$ 380,000
Subsequent Event 2 [Member]
Subsequent Event [Line Items]
Subsequent Event, Date	Aug. 3, 2015
Subsequent Event 2 [Member] | Restricted Stock Units (RSUs) [Member]
Subsequent Event [Line Items]
Granted Restricted Stock Units | shares	850,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	6 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date	Jun. 30, 2021
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options	$ 631,000
Share-based Compensation Arrangement by Share-based Payment Award, Description	In connection with his appointment, GSE’s Board of Directors granted 850,000 restricted stock units (“RSUs”) to Mr. Loudermilk for a six year performance period ending on June 30, 2021. The RSUs granted to Mr. Loudermilk are classified as equity awards because the RSUs will be paid in GSE common stock upon vesting. The RSUs have four vesting traunches based on GSE’s stock price. The RSU equity awards are measured at the grant date fair value and are not remeasured at the end of the reporting period
Shared Based Compensation Arrangements By Share Based Payment Number of Vesting Tranches | Right	4
Share Based Compensation Nonvested Awards Compensation Cost To Be Recognized Through Current Fiscal Year	$ 89,000
Share Based Compensation Nonvested Awards Compensation Cost To Be Recognized Next Calendar Year	212,000
Share Based Compensation Nonvested Awards Compensation Cost To Be Recognized Second Calendar Year	205,000
Share Based Compensation Nonvested Awards Compensation Cost To Be Recognized Third Calendar Year	98,000
Share Based Compensation Nonvested Awards Compensation Cost To Be Recognized Fourth Calendar Year	$ 27,000
Subsequent Event 2 [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Compensation Award, Tranche One [Member]
Subsequent Event [Line Items]
Granted Restricted Stock Units | shares	200,000
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award	200,000 RSUs will vest if the Volume Weighted Average Price (“VWAP”) of the Company’s common stock as quoted by the NYSE MKT exceeds $2.50 for a 90 consecutive trading day period.
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit | $ / shares	$ 2.5
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Date Range Lower Range Limit	90 days
Subsequent Event 2 [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Compensation Award, Tranche Two [Member]
Subsequent Event [Line Items]
Granted Restricted Stock Units | shares	200,000
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award	200,000 RSUs will vest if the Volume Weighted Average Price (“VWAP”) of the Company’s common stock as quoted by the NYSE MKT exceeds $3.25 for a 90 consecutive trading day period.
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit | $ / shares	$ 3.25
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Date Range Lower Range Limit	90 days
Subsequent Event 2 [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Compensation Award, Tranche Three [Member]
Subsequent Event [Line Items]
Granted Restricted Stock Units | shares	200,000
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award	200,000 RSUs will vest if the Volume Weighted Average Price (“VWAP”) of the Company’s common stock as quoted by the NYSE MKT exceeds $4.25 for a 90 consecutive trading day period.
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit | $ / shares	$ 4.25
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Date Range Lower Range Limit	90 days
Subsequent Event 2 [Member] | Restricted Stock Units (RSUs) [Member] | Share Based Compensation Award Tranche Four Member [Member]
Subsequent Event [Line Items]
Granted Restricted Stock Units | shares	250,000
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award	200,000 RSUs will vest if the Volume Weighted Average Price (“VWAP”) of the Company’s common stock as quoted by the NYSE MKT exceeds $6.00 for a 90 consecutive trading day period.
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit | $ / shares	$ 6
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Date Range Lower Range Limit	90 days
Subsequent Event 3 [Member]
Subsequent Event [Line Items]
Subsequent Event, Date	Jul. 6, 2015
Subsequent Event 3 [Member] | IberiaBank [Member] | Line of Credit [Member]
Subsequent Event [Line Items]
Line of Credit Facility, Affiliated Borrower	Hyperspring, LLC
Principal amount of the line of credit	$ 1,000,000
Expiration date of credit agreement	Jul. 6, 2016
Line of credit facility term	1 year
Line of Credit Facility, Collateral	The line is secured by all accounts of Hyperspring and guaranteed by GSE Systems, Inc.
Line of Credit Facility, Interest Rate Description	interest is payable monthly at the rate of 1.00 percentage points over the prime rate of interest as published in the money rate section of the Wall Street Journal
Line of Credit Facility, Interest Rate During Period	4.25%