Gse Systems (GVP) 10-K 16 Mar 18 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2017	Jun. 30, 2017
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		$ 56,765,904
Entity Common Stock, Shares Outstanding	19,425,905
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2017

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 19,111	$ 21,747
Restricted cash	960	1,140
Contract receivables, net	13,997	18,863
Prepaid expenses and other current assets	2,795	2,052
Total current assets	36,863	43,802
Equipment, software, and leasehold improvements	4,782	6,759
Accumulated depreciation	(3,719)	(5,527)
Equipment, software, and leasehold improvements, net	1,063	1,232
Software development costs, net	690	982
Goodwill	8,431	5,612
Intangible assets, net	2,604	454
Deferred Tax Assets, Net, Noncurrent	7,167	0
Other assets	37	1,574
Total assets	56,855	53,656
Current liabilities
Accounts payable	1,251	923
Accrued expenses	2,276	2,437
Accrued compensation	2,866	2,624
Billings in excess of revenue earned	14,543	21,444
Accrued warranty	1,433	1,137
Current contingent consideration	1,701	2,105
Other current liabilities	1,182	716
Total current liabilities	25,252	31,386
Other liabilities	1,931	1,149
Total liabilities	27,183	32,535
Commitments and contingencies
Stockholder's equity
Preferred stock $.01 par value, 2,000,000 shares authorized, no shares issued and outstanding	0	0
Common stock $.01 par value, 30,000,000 shares authorized, 21,024,395 and 20,433,608 shares issued and 19,425,484 and 18,834,697 shares outstanding in 2017 and 2016	210	204
Additional paid-in capital	76,802	75,120
Accumulated deficit	(42,870)	(49,427)
Accumulated other comprehensive loss	(1,471)	(1,777)
Treasury stock at cost, 1,598,911 shares	(2,999)	(2,999)
Total stockholders' equity	29,672	21,121
Total liabilities and stockholders' equity	$ 56,855	$ 53,656

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2017	Dec. 31, 2016
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
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)	30,000,000	30,000,000
Common stock, shares issued (in shares)	21,024,395	20,433,608
Common stock, shares outstanding (in shares)	19,425,484	18,834,697
Treasury stock at cost (in shares)	1,598,911	1,598,911

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Revenues	$ 70,880	$ 53,101
Cost of revenue	52,336	36,843
Gross profit	18,544	16,258
Operating expenses
Selling, general and administrative	15,469	12,260
Research and development	1,391	1,261
Restructuring charges	778	490
Depreciation	342	383
Amortization of definite-lived intangible assets	335	289
Total operating expenses	18,315	14,683
Operating income	229	1,575
Interest income, net	80	85
Loss on derivative instruments, net	99	(18)
Other (expense) income, net	(4)	130
Income before income taxes	404	1,772
(Benefit) provision for income taxes	(4,980)	350
Net income	$ 5,384	$ 1,422
Basic earnings per common share	$ 0.28	$ 0.08
Diluted earnings per common share	$ 0.27	$ 0.08

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net income	$ 5,384	$ 1,422
Foreign currency translation adjustment	306	(317)
Comprehensive income	$ 5,690	$ 1,105

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - 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, 2015	$ 195	$ 73,481	$ (50,849)	$ (1,460)	$ (2,999)	$ 18,368
Balance (in shares) at Dec. 31, 2015	19,510,770				(1,598,911)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	$ 0	1,399	0	0	$ 0	1,399
Common stock issued for options exercised (in shares)	457,512				0
Common stock issued for options exercised	$ 4	829	0	0	$ 0	833
Common stock issued for services provided (in shares)	465,326				0
Common stock issued for services provided	$ 5	(5)	0	0	$ 0	0
Vested RSU shares withheld to pay taxes		(584)				(584)
Foreign currency translation adjustment	0	0	0	(317)	0	(317)
Net income	0	0	1,422	0	0	1,422
Balance at Dec. 31, 2016	$ 204	75,120	(49,427)	(1,777)	$ (2,999)	$ 21,121
Balance (in shares) at Dec. 31, 2016	20,433,608				(1,598,911)	18,834,697
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative Effect of New Accounting Principle in Period of Adoption			1,173			$ 1,173
Stock-based compensation expense	$ 0	2,398	0	0	$ 0	2,398
Common stock issued for options exercised (in shares)	181,577
Common stock issued for options exercised	$ 2	207	0	0	0	209
Common stock issued for RSUs vested (in shares)	409,210
Common stock issued for RSUs vested	$ 4	(4)	0	0	0	0
Vested RSU shares withheld to pay taxes	0	(919)	0	0	0	(919)
Foreign currency translation adjustment	0	0	0	306	0	306
Net income	0	0	5,384	0	0	5,384
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)	19,425,484

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Cash flows provided by operating activities
Net income	$ 5,384	$ 1,422
Adjustments to reconcile net income to net cash provided by operating activities:
Severance Costs	465	0
Impairment of Long-Lived Assets to be Disposed of	222	0
Depreciation	342	383
Amortization of definite-lived intangible assets	335	289
Amortization of capitalized software development costs	469	408
Change in fair value of contingent consideration	446	(207)
Stock-based compensation expense	2,472	1,550
Provision for Doubtful Accounts	118	0
(Gain) loss on derivative instruments, net	(99)	18
Deferred income taxes	(5,505)	123
Gain (Loss) on Sale of Assets and Asset Impairment Charges	2	3
Changes in assets and liabilities
Contract receivables, net	10,006	(6,078)
Prepaid expenses and other assets	1,020	(1,249)
Accounts payable, accrued compensation and accrued expenses	(1,904)	961
Billings in excess of revenue earned	(6,897)	12,257
Accrued warranty	462	(465)
Other liabilities	370	737
Cash provided by operating activities	7,708	10,152
Cash flows from investing activities:
Capital expenditures	(112)	(79)
Proceeds from Sale of Property, Plant, and Equipment	0	30
Capitalized software development costs	(177)	(245)
Payments to Acquire Businesses, Net of Cash Acquired	(9,066)	0
Releases of cash as collateral under letters of credit	180	2,408
Cash used in investing activities	(9,175)	2,114
Cash flows from financing activities:
Proceeds from issuance of common stock on the exercise of stock options	209	833
RSUs withheld to pay taxes	(919)	(584)
Contingent consideration payments to Hyperspring, LLC	(850)	(1,421)
Cash used in financing activities	(1,560)	(1,172)
Effect of exchange rate changes on cash	391	(431)
Net (decrease) increase in cash and cash equivalents	(2,636)	10,663
Cash and cash equivalents at beginning of year	21,747	11,084
Cash and cash equivalents at end of period	$ 19,111	$ 21,747

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2017
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	1. Summary of Significant Accounting Policies Principles of consolidation The accompanying consolidated financial statements include the accounts of GSE Systems, Inc. and its wholly-owned subsidiaries (collectively, the Company). All intercompany balances and transactions have been eliminated in consolidation. Investments in partnerships, joint ventures, and less-than-majority owned subsidiaries in which the Company has significant influence are accounted for under the equity method. Accounting estimates The preparation of the consolidated financial statements in conformity with generally accepted accounting principles in the United States of America (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 consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. On an ongoing basis, the Company evaluates the estimates used, including but not limited to those related to revenue recognition on long-term contracts, allowance for doubtful accounts, product warranties, valuation of goodwill and intangible assets acquired, impairment 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. Business Combinations Business combinations are accounted for in accordance with ASC 805, Business Combinations Revenues and the results of operations of the acquired business are included in the accompanying consolidated statement of operations commencing on the date of acquisition. Acquisitions may include contingent consideration payments based on future financial measures of an acquired company. Under Accounting Standards Codification (ASC) 805, contingent consideration is required to be recognized at fair value as of the acquisition date. We estimate the fair value of these liabilities based on financial projections of the acquired companies and estimated probabilities of achievement. At each reporting date, the contingent consideration obligation is revalued to estimated fair value, and changes in fair value subsequent to the acquisition are reflected in income or expense in the consolidated statements of operations, and could cause a material impact to our operating results. Changes in the fair value of contingent consideration obligations may result from changes in discount periods and rates, changes in the timing and amount of revenue and/or earnings estimates, and changes in probability assumptions with respect to the likelihood of achieving the various earn-out criteria. Revenue recognition The Company recognizes revenue through fixed price contracts for the sale of uniquely designed/customized systems containing hardware, software and other materials which generally apply to the Performance Improvement Solutions segment and time and material contracts for the Nuclear Industry Training and Consulting segment. In accordance with ASC 605-35 , Construction-Type and Production-Type Contracts ) 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 to two year warranty on parts, labor and any bug fixes as it relates to customized software embedded in the systems. Revenue from the sale of software licenses without other elements in the contract and 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 utilize written contracts to establish the terms and conditions by which product support and services are sold to customers. Delivery is considered to have occurred when title and risk of loss have been transferred to the customer, which generally occurs after a license key has been delivered electronically to the customer. The Company also recognizes revenue from the sale of software licenses from contracts with multiple deliverables. These software license sales are evaluated under ASC 985-605, Software Revenue Recognition The Company recognizes revenue under time and materials contracts primarily from the Nuclear Industry Training and Consulting segment and certain cost-reimbursable contracts. 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. Any unbilled amounts are typically billed the following month. Under cost-reimbursable contracts, which are subject to a contract ceiling amount, we are reimbursed for allowable costs and paid a fee, which may be fixed or performance based. However, if costs exceed the contract ceiling or are not allowable under the provisions of the contract or applicable regulations, we may not be able to obtain reimbursement for all such costs. Cash and cash equivalents Cash and cash equivalents represent cash and highly liquid investments including money market accounts with maturities of three months or less at the date of purchase. Restricted cash Restricted cash consists of the cash collateralization of outstanding letters of credit used for various advance payment, bid, surety and performance bonds, and negative foreign exchange positions which have been segregated into restricted money market accounts with BB&T Bank. BB&T Bank has complete and unconditional control over the restricted money market accounts. At December 31, 2017 and 2016, the Company had approximately $1.0 million and $1.1 million, respectively, of cash in escrow accounts with BB&T Bank. We have classified all of our restricted cash as current assets at December 31, 2017 and 2016, respectively. The Company recorded interest income of $2,000 and $6,000 from the escrow accounts for the years ended December 31, 2017 and 2016, respectively. The interest earned on these restricted funds is added to the restricted cash balance. The Company classifies the restriction and release of the cash collateralization of outstanding letters of credit as an investing activity within the consolidated statements of cash flows, as these deposits are not related to borrowings against our line of credit. Contract receivables, net Contract receivables include recoverable costs and accrued profit not billed which represents revenue recognized in excess of amounts billed. Billings in excess of costs and estimated earnings on uncompleted contracts in the accompanying consolidated balance sheets represent advanced billings to clients on contracts in advance of work performed. Generally, such amounts will be earned and recognized over the next twelve months. Billed receivables are recorded at invoiced amounts. The allowance for doubtful accounts is based on historical trends of past due accounts, write-offs, and specific identification and review of customer accounts. Equipment, software and leasehold improvements, net Equipment and purchased software are recorded at cost and depreciated using the straight-line method with estimated useful lives ranging from three to ten years. Leasehold improvements are amortized over the life of the lease or the estimated useful life, whichever is shorter, using the straight-line method. Upon sale or retirement, the cost and related depreciation are eliminated from the respective accounts and any resulting gain or loss is included in operations. Maintenance and repairs are charged to expense as incurred. 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, or 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 carrying amount of such asset to its estimated fair value based on the future discounted cash flows. The excess of any unamortized computer software costs over the related fair value is written down and charged to operations. Development expenditures Development expenditures incurred to meet customer specifications under contracts are charged to contract costs. Company sponsored development expenditures are either charged to operations as incurred and are included in research and development expenses or are capitalized as software development costs. See Note 9, Software development costs, net Impairment of long-lived assets Long-lived assets, such as equipment, purchased software, capitalized software development costs, and intangible assets subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated undiscounted future cash flows, an impairment charge is recognized at the amount by which the carrying amount of the asset exceeds its fair value. Assets to be disposed of would be separately presented in the consolidated balance sheets and reported at the lower of the carrying amount or fair value less costs to sell, and would no longer be depreciated. On December 27, 2017, the board of the Company approved an international restructuring plan to streamline and optimize the Company's global operations. As a result, the Company will be closing its offices in Nyköping, Sweden; Chennai, India; and Stockton-on-Tees, UK. The Company's management conducted an impairment review of the assets to be disposed of under the plan. Based upon this review, we recorded an impairment loss of $0.2 million representing the net book value of the equipment and intangible assets subject to amortization under the respective offices. See Note 3, Restructuring Expenses Goodwill and intangible assets The Company's intangible assets include amounts recognized in connection with business acquisitions, including customer relationships, contract backlog and software. Intangible assets are initially valued at fair 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. 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. Goodwill represents the excess of costs over fair value of assets of businesses acquired. 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 in accordance with Accounting Standard Intangibles - Goodwill and Other (Topic 350): Testing Goodwill for Impairment, Intangibles — Goodwill and Other ASU 2011-08 permits an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test. Under ASU 2011-08, an entity is not required to perform step one of the goodwill impairment test for a reporting unit if it is more likely than not that its fair value is greater than its carrying amount. For the annual goodwill impairment test as of December 31, 2017, the Company performed a quantitative step one goodwill impairment test and concluded that the fair values of each of the reporting units exceeded their respective carrying values. No goodwill impairment was recorded during 2017. Foreign currency translation The United States Dollar (USD) is the functional currency of GSE and our subsidiaries operating in the United States. Our subsidiaries' financial statements are maintained in their functional currencies. The functional currency of each of our foreign subsidiaries is the currency of the economic environment in which the subsidiary primarily does business. Our foreign subsidiaries' financial statements are translated into USD using the exchange rates applicable to the dates of the financial statements. Assets and liabilities are translated into USD using the period-end spot foreign exchange rates. Income and expenses are translated at the average exchange rate for the year. Equity accounts are translated at historical exchange rates. The effects of these translation adjustments are reported as a component of accumulated other comprehensive income (loss) included in the consolidated statements of changes in stockholders' equity. For any transaction that is in a currency different from the entity's functional currency, we record a gain or loss based on the difference between the exchange rate at the transaction date and the exchange rate at the transaction settlement date (or rate at period end, if unsettled) as foreign currency exchange gain (loss), net in the consolidated statements of operations. Accrued warranty For contracts that contain a warranty provision, the Company provides an accrual for estimated future warranty costs based on historical experience and projected claims. The Company's contracts may contain warranty provisions ranging from one to two years. The current portion of the accrued warranty is presented separately on the consolidated balance sheets within current liabilities whereas the noncurrent portion is included in other liabilities. The activity in the accrued warranty accounts is as follows: (in thousands) As of and for the years ended December 31, 2017 2016 Beginning balance $ 1,478 $ 1,614 Current year provision 707 355 Current year claims (245) (467) Currency adjustment 13 (24) Ending balance $ 1,953 $ 1,478 Income taxes Income taxes are provided under the asset and liability method. Under this method, deferred income taxes are determined based on the differences between the consolidated financial statements and tax bases of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. Valuation allowances are established, when necessary, to reduce deferred tax assets to the amounts expected to be realized. A provision is made for the Company's current liability for federal, state and foreign income taxes and the change in the Company's deferred income tax assets and liabilities. We establish accruals for uncertain tax positions taken or expected to be taken in a tax return when it is not more likely than not (i.e., a likelihood of more than fifty percent) 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 fifty percent likely of being realized upon ultimate settlement. Favorable or unfavorable adjustment of the accrual for any particular issue would be recognized as an increase or decrease to income tax expense in the period of a change in facts and circumstances. Interest and penalties related to income taxes are accounted for as income tax expense. Stock-based compensation Share-based compensation expense is based on the grant-date fair value estimated in accordance with the provisions of ASC 718, Compensation-Stock Compensation Earnings per share Basic earnings per share is based on the weighted average number of outstanding common shares for the period. Diluted earnings per share adjusts the weighted average shares outstanding for the potential dilution that could occur if outstanding vested stock options were exercised. Basic and diluted earnings per share is based on the weighted average number of outstanding shares for the period. The number of common shares and common share equivalents used in the determination of basic and diluted earnings per share were as follows: (in thousands, except for per share data) Years ended December 31, 2017 2016 Numerator: Net income $ 5,384 $ 1,422 Denominator: Weighted-average shares outstanding for basic earnings per share 19,259,966 18,218,681 Effect of dilutive securities: Stock options and restricted stock units 345,461 293,585 Adjusted weighted-average shares outstanding and assumed conversions for diluted earnings per share 19,605,427 18,512,266 Shares related to dilutive securities excluded because inclusion would be anti-dilutive 374,833 677,964 Conversion of certain outstanding stock options was not assumed for the years ended December 31, 2017 and 2016 because the impact would have been anti-dilutive. Significant customers and concentration of credit risk For the year ended December 31, 2017, we have a concentration of revenue from two individual customers, which accounted for approximately 39.0% of our consolidated revenue. For the year ended December 31, 2016, we have a concentration of revenue from an individual customer, which accounted for 10.2% of our consolidated revenue. No other individual customer accounted for more than 10% of our consolidated revenue in 2017 or 2016. As of December 31, 2017, we have a one customer that accounted for 26.7% of the Company's consolidated contract receivables. As of December 31, 2016, the Company did not have any customers that accounted for more than 10% of the Company's consolidated contract receivables. Fair values of financial instruments The carrying amounts of current assets and current liabilities reported in the consolidated balance sheets approximate fair value due to their short term duration. 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 December 31, 2017, the Company had foreign exchange contracts outstanding of approximately 162.5 million Japanese Yen, 0.2 million Australian Dollars, and 24,000 Euro. At December 31, 2016, the Company had foreign exchange contracts outstanding of approximately 281.4 million Japanese Yen, 0.6 million Australian Dollars, 0.5 million Canadian Dollars, and 0.1 million Euro at fixed rates. The contracts expire on various dates through December 2018. The Company had not designated the foreign exchange contracts as hedges and had recorded the estimated fair value of the contracts in the consolidated balance sheet as follows: December 31, (in thousands) 2017 2016 Asset derivatives Prepaid expenses and other current assets $ 201 $ 57 Other assets - 84 201 141 Liability derivatives Other current liabilities - (20) - (20) Net fair value $ 201 $ 121 The changes in the fair value of the foreign exchange contracts are included in gain (loss) on derivative instruments, net in the consolidated statements of operations. The foreign currency denominated trade receivables, unbilled 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 years ended December 31, 2017 and 2016, the Company recognized a gain (loss) on its derivative instruments net as outlined below: Years ended December 31, (in thousands) 2017 2016 Foreign exchange contracts- change in fair value $ 73 $ 51 Remeasurement of related contract receivables and billings in excess of revenue earned 26 (69) $ 99 $ (18) Reclassifications Certain prior year amounts have been reclassified to conform with the current year presentation. The Company reclassified the stock-based compensation related to management and administrative employees from cost of revenue and research and development expenses to selling, general and administrative expenses. Accounting pronouncements recently adopted In July 2015, the Financial Accounting Standards Board (FASB) issued ASU No. 2015-11, Simplifying the Measurement of Inventory (ASU 2015-11). ASU 2015-11 requires that an entity measure inventory at the lower of cost and net realizable value. This ASU does not apply to inventory measured using the last-in, first-out method. ASU 2015-11 was effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. We adopted ASU 2015-11 effective January 1, 20 In March 2016, the FASB issued ASU No. 2016-09, Compensation - Stock Compensation: Topic 718: Improvements to Employee Share Based Payment Accounting Accounting pronouncements not yet adopted In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers Subsequent to issuing ASU 2014-09, the FASB has issued a series of subsequent updates to the revenue recognition guidance in Topic 606, including ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net) Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Leases (Topic 840), and Leases (Topic 842): Amendments to SEC Paragraphs Pursuant to the Staff Announcement at the July 20, 2017 EITF Meeting and Rescission of Prior SEC Staff Announcements and Observer Comments The Company has completed its evaluation of the new standard and has assessed the impacts of adoption on the consolidated financial statements and disclosures based on the evaluation of our current contracts and revenue streams, which are described below. During the implementation of the new standard, we identified three broad revenue streams: 1) System Design and Build (SDB), 2) Software, and 3) Consulting and Training services. The SDB contracts typically consist of initial design, engineering, assembly and installation of training simulators which include hardware, software, labor, and PCS on the software. We primarily account for revenue under fixed-price SDB contracts using the percentage-of-completion method (input method). This methodology recognizes revenue and earnings as work progresses on the contract and is based on costs incurred to date compared to total estimated cost to complete the project. Under the new accounting standard, we identify two main performance obligations for a typical SDB contract: a fully functioning training simulator (which includes hardware, software, and labor) and PCS. For a training simulator, we will continue to use the percentage-of-completion method (input method) to account for revenue, and for PCS, we recognize revenue ratably over the term of the PCS. For the standalone sales of software and which do not require significant modifications or customization, revenue recognition is mostly consistent under both the previous and new standard. A software license sale contract with multiple deliverables typically includes the following elements: license, installation and training services and PCS. Under the current revenue recognition standard, due to the lack of VSOE, revenue is recognized ratably over the longest service period. Under the new revenue recognition standard, the total transaction price will be allocated to the identified performance obligations based on their relative standalone selling prices, and we will recognize the revenue as the performance obligations are satisfied. Specially, we will recognize license revenue when the software license is delivered to the customer; installation and training revenue will be recognized when the installation and training is completed without regard to a detailed evaluation of the point in time criteria due to the short-term nature of the installation and training services (1 to 2 days on average); and PCS revenue will be recognized ratably over the service period. The contracts within the consulting and training services revenue stream are primarily time and materials based in which customers are billed on a regular basis, such as weekly, biweekly or monthly. Revenue on time and material contracts is recognized as services are rendered and performed. Any unbilled amounts are typically billed the following month. Under the new standard, we elect to apply the "right to invoice" practical expedient outlined in ASC 606-10-55-18. The invoice amount represents the number of hours of approved time worked by each temporary worker multiplied by the bill rate for the type of work. As such, the Company will recognize revenue in the amount for which it has the right to invoice. Therefore, revenue recognition is mostly consistent under both the previous and new standard. We adopted the new standard effective January 1, 2018 to (i) all new contracts entered into after January 1, 2018 and (ii) all existing contracts for which all (or substantially all) of the revenue has not been recognized under legacy revenue guidance, using the modified retrospective transition method. The adoption of the new standard resulted in an increase of $0.9 million to the opening balance of accumulated deficit, primarily due to software contracts and the acceleration of software license revenue recognition. The Company is currently assessing the tax impact upon adoption of the new standard. Consolidated revenues presented in the comparative consolidated financial statements for periods prior to January 1, 2018 will not be revised. The disclosures in our notes to the consolidated financial statements related to revenue recognition will be significantly expanded under the new standard, specifically around the quantitative and qualitative information about performance obligations, changes in contract assets and liabilities, and disaggregation of revenue. In February 2016, the FASB issued ASU No. 2016-02, Leases In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses , which introduces new guidance for credit losses on instruments within its scope. The new guidance introduces an approach based on expected losses to estimate credit losses on certain types of financial instruments, including, but not limited to, trade and other receivables, held-to-maturity debt securities, loans and net investments in leases. The new guidance also modifies the impairment model for available-for-sale debt securities and requires the entities to determine whether all or a portion of the unrealized loss on an available-for-sale debt security is a credit loss. The standard also indicates that entities may not use the length of time a security has been in an unrealized loss position as a factor in concluding whether a credit loss exists. The ASU is effective for public companies for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Early adoption is permitted for all entities for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company is currently evaluating the effects, if any, that the adoption of this guidance will have on the Company's consolidated financial position, results of operations and cash flows. In August 2016, the FASB issued ASU No. 2016-15, Classification of Certain Cash Receipts and Cash Payments In November 2016, the FASB issued ASU No. 2016-18, Restricted Cash In January 2017, the FASB issued ASU No. 2017-01, Business Combinations: Clarifying the definition of a Business , which amends the current definition of a business. Under ASU 2017-01, to be considered a business, an acquisition would have to include an input and a substantive process that together significantly contributes to the ability to create outputs. ASU 2017-01 further states that when substantially all of the fair value of gross assets acquitted is concentrated in a single asset (or a group of similar assets), the assets acquired would not represent a business. The new guidance also narrows the definition of the term "outputs" to be consistent with how it is described in ASC 606, Revenue from Contracts with Customers . The changes to the definition of a business will likely result in more acquisitions being accounted for as asset acquisitions. ASU 2017-01 is effective for acquisitions commencing on or after December 15, 2017, with early adoption permitted. Adoption of this guidance will be applied prospectively on or after the effective date. In January 2017, the FASB issued ASU No. 2017-04, Simplifying the Test for Goodwill Impairment (ASU 2017-04). ASU 2017-04 simplifies the accounting for goodwill impairment by eliminating Step 2 of the current goodwill impairment test, which required a hypothetical purchase price allocation. Goodwill impairment will now be the amount by which the reporting unit's carrying value exceeds its fair value, limited to the carrying value of the goodwill. ASU 2017-04 is effective for financial statements issued for fiscal years, and interim periods beginning after December 15, 2019. In May 2017, the FASB issued ASU No. 2017-09, Compensation – Stock Compensation Compensation – Stock Compensation

Acquisition

Acquisition	12 Months Ended
	Dec. 31, 2017
Acquisition [Abstract]
Acquisition [Text Block]	2. Acquisition On September 20, 2017, GSE, through its wholly-owned subsidiary GSE Performance Solutions, Inc. (Performance Solutions), acquired 100% of the capital stock of Absolute Consulting, Inc. (Absolute) for $8.8 million pursuant to the Stock Purchase Agreement by and among Performance Solutions and the sellers of Absolute. The purchase price was subject to a customary working capital adjustment resulting in total consideration of $9.5 million. An indemnification escrow of $1.0 million was funded from the cash paid to the sellers and is available to GSE and Performance Solutions to satisfy indemnification claims until September 20, 2019. Absolute is a provider of technical consulting and staffing solutions to the global nuclear power industry. Located in Navarre, Florida, Absolute has established long-term relationships with blue-chip customers primarily in the nuclear power industry. The acquisition of Absolute is expected to strengthen the Company's global leadership in nuclear training and consulting solutions, add new capacities to our technical consulting and staffing solutions offerings and bring highly complementary customers, while deepening relationships with existing clients. The following table summarizes the consideration paid to acquire Absolute and the fair value of the assets acquired and liabilities assumed at the date of the transaction. The following amounts except for Cash are all reflected in the consolidated statement of cash flow within the "Acquisition of Absolute Consulting, Inc., net of cash acquired" line caption. Absolute ( in thousands Total purchase price $ 9,521 Purchase price allocation: Cash $ 455 Contract receivables 5,121 Prepaid expenses and other current assets 68 Property, and equipment, net 184 Intangible assets 2,569 Accounts payable, accrued expenses, and other liabilities (78) Accrued compensation (1,617) Total identifiable net assets 6,702 Goodwill 2,819 Net assets acquired $ 9,521 The goodwill is primarily attributable to the additional capacities to offer broader solutions to new and existing customers and the expected enhanced cost and growth synergies as a result of the acquisition. The total amount of goodwill that is expected to be tax deductible is $2.8 million. All of the $2.8 million of goodwill was assigned to our Nuclear Industry Training and Consulting segment. The fair value of the assets acquired includes gross trade receivables of $5.1 million, of which the Company has collected in full subsequent to the acquisition. GSE did not acquire any other class of receivable as a result of the acquisition of Absolute. The Company identified $2.6 million of other intangible assets, including customer relationships and trademarks/names with amortization periods of three to ten years. The following table summarizes the fair value of intangibles 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 10 $ 1,856 Trademarks/Names 3 713 Total $ 2,569 Unaudited Pro Forma Financial Information The acquired business contributed revenue of $8.7 million and earnings of $0.6 million to GSE for the period from September 20, 2017 to December 31, 2017. The following unaudited pro forma summary presents consolidated information of GSE as if the business combination had occurred on January 1, 2016. The unaudited pro forma financial information was prepared based on historical financial information. These pro forma amounts have been calculated after applying GSE's accounting policies and adjusting the results of Absolute to reflect the additional depreciation and amortization that would have been charged assuming the fair value adjustments to fixed assets and intangible assets had been applied from January 1, 2016, with the consequential tax effects. In 2017, GSE and Absolute have incurred $0.5 million of acquisition-related costs. These expenses are included in general and administrative expense on GSE's consolidated statements of operations and are reflected in pro forma earnings for the year ended December 31, 2016, in the table below. 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, 2016, nor is it intended to be an indication of future operating results. (in thousands) (unaudited) Year Ended December 31, 2017 2016 Revenue $ 99,484 $ 93,147 Net income 5,735 1,362

Restructuring Expenses

Restructuring Expenses	12 Months Ended
	Dec. 31, 2017
Restructuring Expenses [Abstract]
Restructuring Expenses [Text Block]	3. Restructuring expenses On December 27, 2017, the board of GSE Systems, Inc. approved an international restructuring plan to streamline and optimize the Company's global operations. Beginning in December 2017, GSE will consolidate its engineering services and R&D activities to Maryland and cease an unprofitable non-core business in the U.K. As a result, the Company will be closing 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 and 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 will eliminate approximately 40 positions due to these changes, primarily in Europe and India, and will undertake other cost-savings measures. The restructuring plan is expected to be completed in 2018. As a result of these efforts, GSE expects to record a restructuring charge of approximately $1.7 million, primarily related to workforce reductions, contracts termination costs and asset write-offs due to the exit activities. We recorded a restructuring charge of $0.7 million for the year ended December 31, 2017, and we expect to record the remaining charges, primarily reflecting the office closure costs, in the first quarter of 2018. The following table summarize the restructuring costs. The amounts to be transferred from cumulative translation adjustments and included in determining net income for the period, in which the liquidation of these foreign entities are completed (2018), are not included in the table below. ( in thousands Total Expected Costs Costs for the Year Expected Costs Remaining Employee termination benefits $ 499 $ 465 $ 34 Lease termination costs 665 - 665 Assets write-offs 222 222 - Other restructuring costs 303 46 257 Total $ 1,689 $ 733 $ 956 The restructuring costs related to our Performance Improvement Solutions segment and were included in the consolidated statement of operations within the "Restructuring charges" line caption. The accrued employee termination benefits of $0.5 million were reflected in the "Accrued compensation" line in the consolidated balance sheet. No payment had been made as of December 31, 2017.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets [Abstract]
Goodwill and Intangible Assets	4. Goodwill and Intangible Assets Goodwill The Company reviews goodwill for impairment annually as of December 31 and whenever events or changes in circumstances indicate the carrying value of an asset 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). As of December 31, 2017 and 2016, goodwill of $8.4 million and $5.6 million, respectively, related to the Nuclear Industry Training and Consulting segment. The increase in the carrying amount of goodwill during the year ended December 31, 2017 was due to the acquisition of Absolute. No impairment of goodwill was recorded in 2017 or 2016. Intangible Assets Subject to Amortization As discussed in Note 2, Acquisition As discussed in Note 3, Restructuring Expenses The intangible assets under the plan mainly included contractual and non-contractual customer relationships at our UK location. As the intangible assets have no value for sale or value in use, we recognized an impairment loss of $0.1 million representing the net book value of the intangible assets as of December 31, 2017. The write-off of the intangible assets was included in the consolidated statement of operations within the "Restructuring charges" line caption. The following table shows the gross carrying amount and accumulated amortization of definite-lived intangible assets: (in thousands) As of December 31, 2017 Gross Carrying Amount Accumulated Amortization Net Amortized intangible assets Customer relationships $ 3,074 $ (1,218) $ 1,856 Trade names 713 (33) 680 Developed technology 471 (412) 59 Non-contractual customer relationships 433 (426) 7 Others 167 (165) 2 Total $ 4,858 $ (2,254) $ 2,604 (in thousands) As of December 31, 2016 Gross Carrying Amount Accumulated Amortization Net Amortized intangible assets Customer relationships $ 1,425 $ (1,235) $ 190 Non-contractual customer relationships 911 (674) 237 Developed technology 471 (353) 118 Others 217 (211) 6 Foreign currency translation (145) 48 (97) Total $ 2,879 $ (2,425) $ 454 Amortization expense related to definite-lived intangible assets totaled $335,000 and $289,000 for the years ended December 31, 2017 and 2016, 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,: 2018 $ 734 2019 578 2020 472 2021 229 2022 168 Thereafter 423 $ 2,604

Contract Receivables

Contract Receivables	12 Months Ended
	Dec. 31, 2017
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) December 31, 2017 2016 Billed receivables $ 8,154 $ 13,325 Recoverable costs and accrued profit not yet billed 5,980 5,555 Allowance for doubtful accounts (137) (17) Total contract receivables, net $ 13,997 $ 18,863 During January 2018, the Company invoiced $4.7 million of the unbilled amounts related to the balance at December 31, 2017. On March 29, 2017, Westinghouse, a customer of our Performance Improvement Solutions segment, filed for Chapter 11 bankruptcy protection in the United States Bankruptcy Court for the Southern District of New York, Case No. 17-10751. During the second quarter of 2017, Westinghouse assumed one of our contracts related to Southern Nuclear Company. Therefore, we have not recorded a reserve for outstanding receivables related to this contract. On July 31, 2017, South Carolina Electric and Gas Company announced that it will cease construction of new nuclear plants at the V.C. Summer Nuclear Station, one of the facilities for which the Company has an executory contract with Westinghouse for the provision of simulator software and equipment. Although there has been no formal rejection of the contract as part of the Westinghouse bankruptcy process, GSE now considers it likely that Westinghouse will reject the parties' contract pertaining to the V.C. Summer Nuclear Station. Therefore, at June 30, 2017, GSE reserved 100% of accounts receivable, unbilled receivables, and billings in excess related to the V.C. Summer Nuclear Station, resulting in a net bad debt charge of $118,000. At December 31, 2017, in addition to the foregoing amounts associated with the V.C. Summer Nuclear Station, the Company had approximately $31,000 in net billed and unbilled pre-petition receivables attributable to Westinghouse, and it was fully collected in January 2018. Therefore, none of the remaining outstanding amounts have been reserved at December 31, 2017. The activity in the allowance for doubtful accounts is as follows: (in thousands) As of and for the years ended December 31, 2017 2016 Beginning balance $ 17 $ 103 Current year provision 118 - Current year write-offs - (86) Currency adjustment 2 - Ending balance $ 137 $ 17

Prepaid Expenses and Other Curr

Prepaid Expenses and Other Current Assets	12 Months Ended
	Dec. 31, 2017
Prepaid Expenses and Other Current Assets [Abstract]
Prepaid Expenses and Other Current Assets [Text Block]	6. Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets consist of the following: (in thousands) December 31, 2017 2016 Inventory $ 755 $ - Income tax receivable 418 446 Prepaid expenses 549 422 Other current assets 1,073 1,184 Total $ 2,795 $ 2,052 Inventory is being purchased to support the construction of three major nuclear simulation projects related to a significant contract that was executed during the first quarter of 2016. Inventory is recorded at the lower of cost or net realizable value in accordance with ASC 330, Inventory. Other current assets primarily includes value-added tax receivables and cash deposited in a Swedish tax account.

Equipment, Software, and Leaseh

Equipment, Software, and Leasehold Improvements, net	12 Months Ended
	Dec. 31, 2017
Equipment, Software and Leasehold Improvements, net [Abstract]
Equipment, Software and Leasehold Improvements, net	7. Equipment, Software and Leasehold Improvements, net Equipment, software and leasehold improvements, net consist of the following: (in thousands) December 31, 2017 2016 Computer equipment $ 2,101 $ 2,988 Software 1,598 1,511 Leasehold improvements 454 527 Furniture and fixtures 629 1,733 4,782 6,759 Accumulated depreciation (3,719) (5,527) Equipment, software and leasehold improvements, net $ 1,063 $ 1,232 Depreciation expense was $342,000 and $383,000 for the years ended December 31, 2017 and 2016, respectively. As discussed in Note 3, Restructuring Expenses The fixed assets under the respective offices primarily included computers, office equipment and furniture, software and leasehold improvements. As a result of this test, the Company concluded that these assets were no longer recoverable. Accordingly, we recorded a $0.1 million write-off of the fixed assets which represented the net book value of the respective assets.

Other Assets

Other Assets	12 Months Ended
	Dec. 31, 2017
Other Assets [Abstract]
Other Assets	8. Other Assets Other assets consist of the following: (in thousands) December 31, 2017 2016 Inventory $ - $ 1,443 Other 37 131 Total $ 37 $ 1,574 As of December 31, 2016, other assets are comprised primarily of inventory that was being purchased to support the construction of three simulation projects related to a significant contract that was executed during the first quarter of fiscal year 2016. The inventories are to be relieved and charged to the project upon delivery and customer acceptance, which is expected during the second quarter of 2018 and beyond. As of December 31, 2017, inventory is classified as prepaid expenses and other current assets.

Software Development Costs, net

Software Development Costs, net	12 Months Ended
	Dec. 31, 2017
Software Development Costs, net [Abstract]
Software Development Costs, net	9. Software Development Costs, net Software development costs, net consist of the following: (in thousands) December 31, 2017 2016 Beginning balance $ 982 $ 1,145 Additions 177 245 Amortization (469) (408) Ending balance $ 690 $ 982 Software development costs capitalized were $0.2 million for the years ended December 31, 2017 and 2016, respectively. Amortization of capitalized software development costs was $0.5 million and $0.4 million for the years ended December 31, 2017 and 2016, respectively, and was included in cost of revenue in the consolidated statements of operations.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2017
Fair Value of Financial Instruments [Abstract]
Fair Value of Financial Instruments	10. 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. 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 cash equivalents, accounts receivable and accounts payable, to approximate the fair value of the respective assets and liabilities at December 31, 2017 and 2016 based upon the short-term nature of the assets and liabilities. The Company had $2.3 million and $15.3 million deposited in unrestricted money market accounts on December 31, 2017 and 2016, respectively. As of December 31, 2017, the Company had three standby letters of credit totaling $0.9 million which represent performance bonds on three contracts. The Company has deposited the full value of the standby letters of credit into money market escrow accounts, which have been restricted in that the Company may not access these funds until the related letters of credit have expired. The cash has been recorded on the Company's consolidated balance sheet as restricted cash in current assets based on the expiration date of the underlying letters of credit. The following table presents assets and liabilities measured at fair value at December 31, 2017: 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 $ 3,240 $ - $ - $ 3,240 Foreign exchange contracts - 201 - 201 Total assets $ 3,240 $ 201 $ - $ 3,441 Contingent consideration liability - - (1,701) (1,701) Total liabilities $ - $ - $ (1,701) $ (1,701) The following table presents assets and liabilities measured at fair value at December 31, 2016: 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 $ 16,435 $ - $ - $ 16,435 Foreign exchange contracts - 141 - 141 Total assets $ 16,435 $ 141 $ - $ 16,576 Foreign exchange contracts $ - $ (20) $ - $ (20) Contingent consideration liability - - (2,105) (2,105) Total liabilities $ - $ (20) $ (2,105) $ (2,125) For the years ended December 31, 2017 and 2016, the Company did not have any transfers between fair value Level 1 and Level 2. The Company did not hold any non-financial assets or non-financial liabilities subject to fair value measurements on a recurring basis at December 31, 2017 or 2016. During the years ended December 31, 2017 and 2016, the Company did not have any transfers into or out of the Level 3 contingent consideration liability. The following table provides a roll-forward of the fair value of the contingent consideration categorized as Level 3 for the year ended December 31, 2017: (in thousands) Balance, January 1, 2017 $ 2,105 Payments made on contingent liabilities (850 Change in fair value 446 Balance, December 31, 2017 $ 1,701 The Company made the last payment of the contingent consideration in January 2018.

Long-Term Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2017
Long-Term Debt [Abstract]
Long-Term Debt	11. Long-Term Debt At December 31, 2017 and 2016, the Company had no long-term debt. Line of Credit BB&T Bank We previously had a Master Loan and Security Agreement and Revolving Credit Note with BB&T that provided a $7.5 million revolving line of credit for the purpose of issuing stand-by letters of credit and providing working capital. Working capital advances accrued interest at a rate equal to the Wall Street Journal Prime Rate of Interest, floating with a floor of 4.5%. In connection with the Citizen's Bank credit facility noted below, this agreement was modified in December 2016 to terminate the revolving line of credit, but maintain the outstanding letters of credit. At December 31, 2017, the Company had three letters of credit with BB&T totaling $0.9 million, which have expired and are pending release by the bank and customer. At December 31, 2017 and 2016, the cash collateral account totaled $1.0 million and $1.1 million, respectively, and was classified as restricted cash on the consolidated balance sheets. Citizen's Bank In December 2016, the Company entered into a three-year, $5.0 million revolving line of credit facility (RLOC) with Citizen's Bank on December 29, 2016, to fund general working capital needs, including acquisitions. Working capital advances bear interest of one-month LIBOR plus 2.25% per annum and letter of credit fees are 1.25% per annum. The Company is not required to maintain a restricted cash collateral account at Citizen's Bank for outstanding letters of credit and working capital advances. The credit facility agreement is subject to standard financial covenants and reporting requirements. The maximum availability under the RLOC is subject to a borrowing base equal to 80% of eligible accounts receivable, and is reduced for any issued and outstanding letters of credit and working capital advances. At December 31, 2017, there were no outstanding borrowings on the RLOC and three letters of credit totaling $0.8 million. The amount available at December 31, 2017, after consideration of the borrowing base, letters of credit and working capital advances was approximately $4.0 million. The credit facility agreement is subject to standard financial covenants and reporting requirements. At December 31, 2017, the Company was in compliance with its financial covenants.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2017
Income Taxes [Abstract]
Income Taxes	12. Income Taxes The consolidated income before income taxes, by domestic and foreign sources, is as follows: (in thousands) Years ended December 31, 2017 2016 Domestic $ 1,580 $ 2,873 Foreign (1,176) (1,101) Total $ 404 $ 1,772 The (benefit) provision for income taxes is as follows: (in thousands) Years ended December 31, 2017 2016 Current: Federal $ 459 $ - State 47 6 Foreign 19 221 Subtotal 525 227 Deferred: Federal (4,694) 127 State (942) 19 Foreign 131 (23) Subtotal (5,505) 123 Total $ (4,980) $ 350 The effective income tax rate for the years ended December 31, 2017 and 2016 differed from the statutory federal income tax rate as presented below: Effective Tax Rate Percentage (%) Years ended December 31, 2017 2016 Statutory federal income tax rate 34.0% 34.0% State income taxes, net of federal tax benefit (184.9)% 1.3% Effect of foreign operations 55.6% 8.6% Change in valuation allowance (2,045.3)% (46.9)% Change in tax rate 619.1% 0.0% Uncertain tax positions 338.6% 11.8% Worthless stock deduction (257.6%) 0.0% Stock-based compensation (51.7)% 0.2% Transfer pricing adjustments 117.5% (0.4)% 162(m) limit on compensation 52.3% 4.1% Change in APB 23 liability 46.2% 0.0% Meals and entertainment 37.8% 7.7% Other permanent differences 5.7% (0.6)% Effective tax rate (1,232.7)% 19.8% The difference between the effective rate and statutory rate in 2017 primarily resulted from the release of valuation allowance and change in the statutory tax rate from 34% to 21%, effective for tax years beginning after December 31, 2017 due to the Tax Cuts and Jobs Act. Deferred income taxes arise from temporary differences between the tax bases of assets and liabilities and their reported amounts in the consolidated financial statements. A summary of the tax effect of the significant components of the deferred income tax assets and liabilities is as follows: (in thousands) As of December 31, 2017 2016 Deferred tax assets: Net operating loss carryforwards $ 5,009 $ 7,868 Capital loss carryforwards 383 549 Accruals 487 183 Reserves 514 514 Alternative minimum tax credit carryforwards 299 203 Stock-based compensation expense 1,002 1,224 Intangibles 433 391 Undistributed earnings of foreign subsidiary - 37 Other 135 71 Total deferred tax asset 8,262 11,040 Valuation allowance (1,095) (10,477) Total deferred tax asset less valuation allowance 7,167 563 Deferred tax liabilities: Undistributed earnings of foreign subsidiary (149) - Software development costs (188) (382) Fixed Assets (91) (161) Indefinite-lived intangibles (337) (316) Other (45) (27) Total deferred tax liability (810) (886) Net deferred tax asset $ 6,357 $ (323) Deferred tax liabilities are included in "Other liabilities" on the consolidated balance sheet. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some or all of the deferred tax assets will not be realized. The Company's ability to realize its deferred tax assets depends primarily upon the preponderance of positive evidence that could be demonstrated by three year cumulative positive earnings, reversal of existing deferred temporary differences; and generation of sufficient future taxable income to allow for the utilization of deductible temporary differences. As of each reporting date, the Company's management considers new evidence, both positive and negative, that could impact management's view with regard to future realization of deferral tax assets to estimate if sufficient future taxable income will be generated to use the existing deferred tax assets. This analysis is performed on a jurisdiction by jurisdiction basis. In the fourth quarter, the Company began providing forward forecasting beyond one year which was incorporated into the scheduling analysis to support realization of the deferred tax assets. Based on the assessment the Company's management performed as of December 31, 2017, we conclude that critical pieces of positive evidence supporting the realization of deferred tax assets exist including the strength of three year cumulative positive earnings, reversal of existing deferred temporary differences and future taxable income for the U.S. entities. As a result, the Company has determined that a portion of the historic valuation allowance should be released as realization of the associated asset is more likely than not. Accordingly, we reversed $9.4 million of valuation allowance against the deferred tax assets related to the U.S. entities. Because a portion of the deferred tax assets are capital in nature, the Company must assess the realizability of these assets separately from the deferred tax assets that are ordinary in nature. The Company determined that it would not be able to generate sources of capital income and, therefore, would need to continue to assess a valuation allowance in the amount of $0.4 million. The Company currently does not have sufficient object evidence to substantiate the recovery of the deferred tax assets for U.K. Swedish and Chinese deferred tax assets at December 31, 2017, accordingly, a full valuation allowance of $0.7 million has been established on these deferred tax assets, predominantly comprised of net operating losses. At December 31, 2017, the Company's largest deferred tax asset of $5.8 million primarily relates to a U.S. net operating loss carryforward of $5.0 million which expires in various amounts between 2020 and 2035, and and excludes the impact of uncertain tax positions. The amount of U.S. loss carryforward which can be used by the Company each year is limited due to changes in the Company's ownership which occurred in 2003. However, the Company does not anticipate that any of the loss carryforward will expire unutilized. On December 22, 2017, the United States enacted tax reform legislation known as the H.R.1, commonly referred to as the "Tax Cuts and Jobs Act" (the Act), resulting in significant modifications to existing law. The Company follows the guidance in SEC Staff Accounting Bulletin 118 (SAB 118), which provides additional clarification regarding the application of ASC 740 in situations where the Company does not have the necessary information available, prepared, or analyzed in reasonable detail to complete the accounting for certain income tax effects of the Act for the reporting period in which the Act was enacted. SAB 118 provides for a measurement period beginning in the reporting period that includes the Act's enactment date and ending when the Company has obtained, prepared, and analyzed the information needed in order to complete the accounting requirements but in no circumstances should the measurement period extend beyond one year from the enactment date. The Company has completed the accounting for the effects of the Act. Our financial statements for the year ended December 31, 2017, reflect certain effects of the Act predominantly related to the reduction in the corporate tax rate from 34% to 21%. As a result of the changes to the tax laws and tax rates under the Act, the Company incurred incremental income tax expense of $2.5 million during the year ended December 31, 2017 which consisted of the remeasurement of its net deferred tax asset from 34% to 21%. The Company has not recorded a charge related to the one-time deemed repatriation transition tax on unrepatriated foreign earnings given an estimated net negative earnings and profits position. The Company is evaluating available accounting policy alternatives to either record the U.S. income tax effect of future global intangible low-tax income (GILTI) inclusions in the period in which they arise or establish deferred taxes with respect to the expected future tax liabilities associated with future GILTI inclusions, but has not yet made a policy election. As of December 31, 2017 and 2016, the Company's consolidated cash and cash equivalents totaled $19.1 million and $21.7 million, respectively, including cash and cash equivalents held at non-U.S. entities totaling $5.4 million and $4.2 million, respectively. The non-U.S. entities include operating subsidiaries located in China, United Kingdom, Sweden and India. Of these, the Company does not assert permanent reinvestment in the UK, Sweden or India. Accordingly, the Company analyzed the cumulative earnings and profits and determined no US deferred liability exists given aggregated accumulated deficits. A deferred tax liability in the amount of $149,000 has been recorded for India with respect to the undistributed earnings related to India's application of a Dividend Distributions Tax. Undistributed earnings in China are considered indefinitely reinvested as of December 31, 2017, to fund the Company's ongoing international operations. If China were to repatriate the funds it would not incur any tax due to an accumulated earnings and profits deficit. The Company has made an entity classification (CTB) election to treat GSE UK as a disregarded entity effective January 1, 2018. GSE UK is deemed to distribute all its assets and liabilities to GSE in liquidation. The liquidation will be deemed to occur immediately before the close of December 31, 2017, the day before the election is effective. The provision includes a $3.0 million worthless stock deduction representing the Company's tax basis at the time of liquidation. See discussion regarding treatment of this item as an uncertain tax position. Uncertain Tax Positions Foreign Uncertain Tax Positions During 2017 and 2016, the Company recorded tax liabilities for certain foreign tax contingencies. During 2016, the Company also determined that South Korea should be included in this inventory. The Company recorded these uncertain tax positions in other current liabilities on the consolidated balance sheets. During 2017, the Company recorded a tax liability for an uncertain tax position related to the worthless stock deduction on liquidation of GSE UK. The uncertain tax position is recorded as a component of current and deferred liability. The following table outlines the Company's foreign uncertain tax liabilities, including accrued interest and penalties for each jurisdiction: China Ukraine South Korea U.S. (in thousands) Tax Interest and Penalties Tax Interest and Penalties Tax Interest and Penalties Tax Total Balance, January 1, 2016 $ 225 $ 152 $ 21 $ 15 $ - $ - $ - $ 413 Increases - 57 68 13 129 8 - 275 Decreases 23 - - - - - - 23 Balance, December 31, 2016 $ 202 $ 209 $ 89 $ 28 $ 129 $ 8 $ - $ 665 Increases 14 53 11 - 212 37 833 1,160 Decreases - - - - - - - - Balance, December 31, 2017 $ 216 $ 262 $ 100 $ 28 $ 341 $ 45 $ 833 $ 1,825

Capital Stock

Capital Stock	12 Months Ended
	Dec. 31, 2017
Capital Stock [Abstract]
Capital Stock	13. Capital Stock The Company's Board of Directors has authorized 32,000,000 total shares of capital stock, of which 30,000,000 are designated as common stock and 2,000,000 are designated as preferred stock. The Board of Directors has the authority to establish one or more classes of preferred stock and to determine, within any class of preferred stock, the preferences, rights and other terms of such class. As of December 31, 2017, the Company has reserved 4,301,854 shares of common stock for issuance; 1,046,833 are reserved for shares upon exercise of outstanding stock options and 1,634,663 are reserved for shares upon vesting of restricted stock units. The Company has 1,620,358 shares available for future grants under the Company's 1995 Long-Term Incentive Plan.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2017
Stock-Based Compensation [Abstract]
Stock-Based Compensation	14. Stock-Based Compensation Long-term incentive plan During 1995, the Company established the 1995 Long-Term Incentive Stock Option Plan (the Plan), which permits the granting of stock options (including incentive stock options and nonqualified stock options) stock appreciation rights, restricted or unrestricted stock awards, phantom stock, performance awards or any combination of these to employees, directors or consultants. The Plan expires on April 21, 2026; the total number of shares that could be issued under the Plan is 7,500,000. As of December 31, 2017, 3,198,146 shares have been issued under the Plan, 1,046,833 stock options and 1,634,663 restricted stock units (RSUs) were outstanding under the Plan, while 1,620,358 shares remain for future grants under the Plan. The Company recognizes compensation expense on a pro rata straight-line basis over the requisite service period for stock-based compensation awards with both graded and cliff vesting terms. The Company recognizes the cumulative effect of a change in the number of awards expected to vest in compensation expense in the period of change. The Company has not capitalized any portion of its stock-based compensation. During the years ended December 31, 2017 and 2016, the Company recognized $2,472,000 and $1,550,000, respectively, of stock-based compensation expense under the fair value method. During the years ended December 31, 2017 and 2016, there were approximately $74,000 and $151,000 of stock-based compensation expense related to cash-settled RSUs. Stock options Options to purchase shares of the Company's common stock under the Plan expire in either seven or ten years from the date of grant and become exercisable in three, five, or seven installments with a certain percentage of options vesting on the first anniversary of the grant date and additional options vesting on each of the subsequent anniversaries of the grant date, subject to acceleration under certain circumstances. Information with respect to stock option activity as of and for the year ended December 31, 2017 is as follows: Number of Shares Weighted Average Exercise Price Aggregate Intrinsic Value (in thousands) Weighted Average Remaining Contractual Life (Years) Options outstanding at January 1, 2017 1,556,833 $ 3.15 Options granted - - Options exercised (320,000) 2.05 Options forfeited (190,000) 4.01 Options outstanding at December 31, 2017 1,046,833 3.33 $ 928 1.28 Options expected to vest 24,000 1.90 $ 33 4.72 Options exercisable at December 31, 2017 1,022,833 $ 3.36 $ 895 1.20 Information with respect to stock option activity as of and for the year ended December 31, 2016 is as follows: Number of Shares Weighted Average Exercise Price Aggregate Intrinsic Value (in thousands) Weighted Average Remaining Contractual Life (Years) Options outstanding at January 1, 2016 2,222,333 $ 3.01 Options granted 40,000 2.25 Options exercised (492,200) 1.86 Options forfeited (213,300) 4.77 Options outstanding at December 31, 2016 1,556,833 3.15 $ 1,573 2.05 Options expected to vest 72,000 1.87 $ 117 5.45 Options exercisable at December 31, 2016 1,484,833 $ 3.21 $ 1,456 1.89 A summary of the status of the Company's nonvested options as of and for the year ended December 31, 2017 is presented below. Number of Shares Weighted Average Fair Value Nonvested options at January 1, 2017 72,000 $ 0.97 Options granted - - Options forfeited - - Options vested during the period (48,000) 0.97 Nonvested options at December 31, 2017 24,000 $ 0.97 A summary of the status of the Company's nonvested options as of and for the year ended December 31, 2016 is presented below. Number of Shares Weighted Average Fair Value Nonvested options at January 1, 2016 218,522 $ 0.89 Options granted 40,000 1.15 Options forfeited (32,300) 0.91 Options vested during the period (154,222) 0.92 Nonvested options at December 31, 2016 72,000 $ 0.97 The Company uses a Black-Scholes valuation model to estimate the fair value of the options at grant date based on the assumptions noted in the following table. Volatility represents an average of market estimates for implied volatility of the Company's common stock. The expected life is estimated based on an analysis of options already exercised and any foreseeable trends or changes in recipients' behavior. The risk-free interest rate is an interpolation of the relevant U.S. Treasury security maturities as of each applicable grant date: Years ended December 31, 2017 2016 [1] Risk-free interest rates - 1.53% Dividend yield 0% Expected life - 7 years Volatility - 49.05% Weighted average volatility 49.05% [1] The Company did not grant stock options during the year ended December 31, 2017. The Company received cash for the exercise price associated with stock options exercised of $209,000 and $833,000 during the years ended December 31, 2017 and 2016, respectively. The total intrinsic value realized by participants on stock options exercised was $364,974 and $407,566 during the years ended December 31, 2017 and 2016, respectively. Restricted Stock Units During the years ended December 31, 2017 and 2016, the Company issued RSUs to employees which vest upon the achievement of specific market-based or time-based measures. The fair value for RSU's is calculated based on the stock price on the grant date and expensed ratably over the requisite service period, which ranges between one and five years. The following table summarizes the information about vested and unvested restricted stock units for the years ended December 31, 2017 and 2016. Number of Shares Weighted Average Fair Value Nonvested RSUs at January 1, 2017 1,688,480 $ 1.45 RSUs granted 644,677 3.24 RSUs forfeited (5,500) 3.40 RSUs vested (692,994) 1.89 Nonvested RSUs at December 31, 2017 1,634,663 $ 1.96 Nonvested RSUs at January 1, 2016 1,367,500 $ 0.76 RSUs granted 1,537,399 1.52 RSUs forfeited (505,000) 0.76 RSUs vested (711,419) 0.76 Nonvested RSUs at December 31, 2016 1,688,480 $ 1.45 As of December 31, 2017, the Company had $1.6 million of unrecognized compensation expense related to the RSUs expected to be recognized on a pro-rata straight line basis over a weighted average remaining service period of approximately 3.9 years.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies [Abstract]
Commitments and Contingencies	15. Commitments and Contingencies Leases The Company is obligated under certain noncancelable operating leases for office facilities and equipment. Future minimum lease payments under noncancelable operating leases as of December 31, 2017 are as follows: (in thousands) Gross Future Minimum Lease Payments 2018 $ 1,506 2019 793 2020 702 2021 716 2022 709 Thereafter 541 Total $ 4,967 Total rent expense under operating leases for the years ended December 31, 2017 and 2016, was approximately $0.8 million, respectively. Standby letters of credit, bank guarantees, surety bonds and performance bonds As discussed in Note 11, Long-Term Debt, as of December 31, 2017, the Company had three letters of credit with BB&T bank, totaling $0.9 million and had three letters of credit with Citizen's Bank totaling $0.8 million. The Company was contingently liable for these letters of credit. Contingencies Various actions and proceedings are presently pending to which the Company is a party. In the opinion of management, the aggregate liabilities, if any, arising from such actions are not expected to have a material adverse effect on the financial position, results of operations or cash flows of the Company.

Employee Benefits

Employee Benefits	12 Months Ended
	Dec. 31, 2017
Employee Benefits [Abstract]
Employee Benefits	16. Employee Benefits The Company has a qualified defined contribution plan that covers all U.S. employees under Section 401(k) of the Internal Revenue Code. Under this plan, the Company's stipulated basic contribution matches a portion of the participants' contributions based upon a defined schedule for GSE Performance Improvement Solutions employees. The Company's contributions to the plan were approximately $305,000 and $207,000 for the years ended December 31, 2017 and 2016, respectively.

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2017
Segment Information [Abstract]
Segment Information	17. Segment Information The Company has two reportable business segments. The Performance Improvement Solutions 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. The Company provides these services across all market segments. Contract terms are typically less than two years. The Nuclear Industry Training and Consulting segment provides specialized workforce solutions primarily to the nuclear industry, working at clients' facilities. This business is managed through our Hyperspring and newly acquired 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 September 20, 2017, the Company acquired Absolute Consulting, Inc., now a wholly-owned subsidiary of GSE Performance Solutions, Inc. Absolute is a provider of technical consulting and staffing solutions to the global nuclear power industry and employs approximately 160 professionals with expertise in procedures writing, engineering, technical support, project management, training, project controls, and corrective actions. This acquisition brings a natural adjacency to GSE, fits well with our growth strategy, and benefits our customers from expanded capabilities and offerings. For reporting purposes, Absolute was aggregated with Hyperspring into our Nuclear Industry Training and Consulting segment due to similarities in services provided including training and staff augmentation to the nuclear energy sector. In addition, both entities report to the same management team and share support staff such as sales, recruiting and business development. As such, 100% of the goodwill acquired was allocated to the Nuclear Industry Training and Consulting segment. 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) income before income taxes. (in thousands) Years ended December 31, 2017 2016 Revenue: Performance Improvement Solutions $ 39,899 $ 35,474 Nuclear Industry Training and Consulting 30,981 17,627 $ 70,880 $ 53,101 Operating income Performance Improvement Solutions $ (2,745) $ (856) Nuclear Industry Training and Consulting 3,420 2,224 Change in fair value of contingent consideration, net (446) 207 Operating income $ 229 $ 1,575 Interest income, net 80 85 Gain (loss) on derivative instruments, net 99 (18) Other (expense) income, net (4) 130 Income before income taxes $ 404 $ 1,772 Additional information relating to segments is as follows: (in thousands) December 31, 2017 2016 Performance Improvement Solutions $ 34,107 $ 42,383 Nuclear Industry Training and Consulting 22,748 11,249 Intercompany receivable elimination - 24 Total assets $ 56,855 $ 53,656 For the years ended December 31, 2017 and 2016, 83% and 73%, respectively, of the Company's consolidated revenue was from customers in the nuclear power industry. The Company designs, develops and delivers business and technology solutions to the energy industry worldwide. Revenue, operating income (loss) and total assets for the Company's United States, European, and Asian subsidiaries as of and for the years ended December 31, 2017 and 2016 are as follows: (in thousands) Year ended December 31, 2017 United States Europe Asia Eliminations Consolidated Revenue $ 66,249 $ 3,196 $ 1,435 $ - $ 70,880 Transfers between geographic locations 1,953 - 668 (2,621) - Total revenue $ 68,202 $ 3,196 $ 2,103 $ (2,621) $ 70,880 Operating income (loss) $ 1,930 $ (1,585) $ (116) $ - $ 229 Total assets, at December 31 $ 149,390 $ 5,057 $ 4,313 $ (101,905) $ 56,855 (in thousands) Year ended December 31, 2016 United States Europe Asia Eliminations Consolidated Revenue $ 46,149 $ 4,143 $ 2,809 $ - $ 53,101 Transfers between geographic locations 2,639 22 1,139 (3,800) - Total revenue $ 48,788 $ 4,165 $ 3,948 $ (3,800) $ 53,101 Operating loss $ 2,921 $ (896) $ (450) $ - $ 1,575 Total assets, at December 31 $ 121,728 $ 4,859 $ 4,064 $ (76,995) $ 53,656 Revenues by geographic location above are attributed to the contracting entity. Therefore, revenues from a foreign customer that contracted directly with our U.S. entity are included in revenues from the United States. In Europe, total revenues attributable to our U.K. and Sweden subsidiaries were $1.6 million, respectively. All revenues in Asia were attributable to our Chinese subsidiary. Alternatively, revenues from customers domiciled in foreign countries were approximately 16% and 33%, of the Company's consolidated 2017 and 2016 revenue, respectively. Revenues from foreign countries where our customers reside were all individually less than 10% of the Company's consolidated revenues during 2017 and 2016.

Supplemental Disclosure of Cash

Supplemental Disclosure of Cash Flow Information	12 Months Ended
	Dec. 31, 2017
Supplemental Disclosure of Cash Flow Information [Abstract]
Supplemental Disclosure of Cash Flow Information	18. Supplemental Disclosure of Cash Flow Information (in thousands) Year ended December 31, 2017 2016 Cash paid: Interest $ - $ 13 Income taxes $ 155 $ 370

Summary of Significant Accoun26

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2017
Summary of Significant Accounting Policies [Abstract]
Principles of consolidation	Principles of consolidation The accompanying consolidated financial statements include the accounts of GSE Systems, Inc. and its wholly-owned subsidiaries (collectively, the Company). All intercompany balances and transactions have been eliminated in consolidation. Investments in partnerships, joint ventures, and less-than-majority owned subsidiaries in which the Company has significant influence are accounted for under the equity method.
Accounting estimates	Accounting estimates The preparation of the consolidated financial statements in conformity with generally accepted accounting principles in the United States of America (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 consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. On an ongoing basis, the Company evaluates the estimates used, including but not limited to those related to revenue recognition on long-term contracts, allowance for doubtful accounts, product warranties, valuation of goodwill and intangible assets acquired, impairment 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.
Business Combinations Policy [Policy Text Block]	Business Combinations Business combinations are accounted for in accordance with ASC 805, Business Combinations Revenues and the results of operations of the acquired business are included in the accompanying consolidated statement of operations commencing on the date of acquisition. Acquisitions may include contingent consideration payments based on future financial measures of an acquired company. Under Accounting Standards Codification (ASC) 805, contingent consideration is required to be recognized at fair value as of the acquisition date. We estimate the fair value of these liabilities based on financial projections of the acquired companies and estimated probabilities of achievement. At each reporting date, the contingent consideration obligation is revalued to estimated fair value, and changes in fair value subsequent to the acquisition are reflected in income or expense in the consolidated statements of operations, and could cause a material impact to our operating results. Changes in the fair value of contingent consideration obligations may result from changes in discount periods and rates, changes in the timing and amount of revenue and/or earnings estimates, and changes in probability assumptions with respect to the likelihood of achieving the various earn-out criteria.
Revenue recognition	Revenue recognition The Company recognizes revenue through fixed price contracts for the sale of uniquely designed/customized systems containing hardware, software and other materials which generally apply to the Performance Improvement Solutions segment and time and material contracts for the Nuclear Industry Training and Consulting segment. In accordance with ASC 605-35 , Construction-Type and Production-Type Contracts ) 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 to two year warranty on parts, labor and any bug fixes as it relates to customized software embedded in the systems. Revenue from the sale of software licenses without other elements in the contract and 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 utilize written contracts to establish the terms and conditions by which product support and services are sold to customers. Delivery is considered to have occurred when title and risk of loss have been transferred to the customer, which generally occurs after a license key has been delivered electronically to the customer. The Company also recognizes revenue from the sale of software licenses from contracts with multiple deliverables. These software license sales are evaluated under ASC 985-605, Software Revenue Recognition The Company recognizes revenue under time and materials contracts primarily from the Nuclear Industry Training and Consulting segment and certain cost-reimbursable contracts. 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. Any unbilled amounts are typically billed the following month. Under cost-reimbursable contracts, which are subject to a contract ceiling amount, we are reimbursed for allowable costs and paid a fee, which may be fixed or performance based. However, if costs exceed the contract ceiling or are not allowable under the provisions of the contract or applicable regulations, we may not be able to obtain reimbursement for all such costs.
Cash and cash equivalents	Cash and cash equivalents Cash and cash equivalents represent cash and highly liquid investments including money market accounts with maturities of three months or less at the date of purchase.
Restricted cash	Restricted cash Restricted cash consists of the cash collateralization of outstanding letters of credit used for various advance payment, bid, surety and performance bonds, and negative foreign exchange positions which have been segregated into restricted money market accounts with BB&T Bank. BB&T Bank has complete and unconditional control over the restricted money market accounts. At December 31, 2017 and 2016, the Company had approximately $1.0 million and $1.1 million, respectively, of cash in escrow accounts with BB&T Bank. We have classified all of our restricted cash as current assets at December 31, 2017 and 2016, respectively. The Company recorded interest income of $2,000 and $6,000 from the escrow accounts for the years ended December 31, 2017 and 2016, respectively. The interest earned on these restricted funds is added to the restricted cash balance. The Company classifies the restriction and release of the cash collateralization of outstanding letters of credit as an investing activity within the consolidated statements of cash flows, as these deposits are not related to borrowings against our line of credit.
Contract receivables	Contract receivables, net Contract receivables include recoverable costs and accrued profit not billed which represents revenue recognized in excess of amounts billed. Billings in excess of costs and estimated earnings on uncompleted contracts in the accompanying consolidated balance sheets represent advanced billings to clients on contracts in advance of work performed. Generally, such amounts will be earned and recognized over the next twelve months. Billed receivables are recorded at invoiced amounts. The allowance for doubtful accounts is based on historical trends of past due accounts, write-offs, and specific identification and review of customer accounts.
Equipment, software and leasehold improvements, net	Equipment, software and leasehold improvements, net Equipment and purchased software are recorded at cost and depreciated using the straight-line method with estimated useful lives ranging from three to ten years. Leasehold improvements are amortized over the life of the lease or the estimated useful life, whichever is shorter, using the straight-line method. Upon sale or retirement, the cost and related depreciation are eliminated from the respective accounts and any resulting gain or loss is included in operations. Maintenance and repairs are charged to expense as incurred.
Software development costs	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, or 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 carrying amount of such asset to its estimated fair value based on the future discounted cash flows. The excess of any unamortized computer software costs over the related fair value is written down and charged to operations.
Development expenditures	Development expenditures Development expenditures incurred to meet customer specifications under contracts are charged to contract costs. Company sponsored development expenditures are either charged to operations as incurred and are included in research and development expenses or are capitalized as software development costs. See Note 9, Software development costs, net
Impairment of long-lived assets	Impairment of long-lived assets Long-lived assets, such as equipment, purchased software, capitalized software development costs, and intangible assets subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated undiscounted future cash flows, an impairment charge is recognized at the amount by which the carrying amount of the asset exceeds its fair value. Assets to be disposed of would be separately presented in the consolidated balance sheets and reported at the lower of the carrying amount or fair value less costs to sell, and would no longer be depreciated. On December 27, 2017, the board of the Company approved an international restructuring plan to streamline and optimize the Company's global operations. As a result, the Company will be closing its offices in Nyköping, Sweden; Chennai, India; and Stockton-on-Tees, UK. The Company's management conducted an impairment review of the assets to be disposed of under the plan. Based upon this review, we recorded an impairment loss of $0.2 million representing the net book value of the equipment and intangible assets subject to amortization under the respective offices. See Note 3, Restructuring Expenses
Goodwill and intangible assets	Goodwill and intangible assets The Company's intangible assets include amounts recognized in connection with business acquisitions, including customer relationships, contract backlog and software. Intangible assets are initially valued at fair 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. 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. Goodwill represents the excess of costs over fair value of assets of businesses acquired. 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 in accordance with Accounting Standard Intangibles - Goodwill and Other (Topic 350): Testing Goodwill for Impairment, Intangibles — Goodwill and Other ASU 2011-08 permits an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test. Under ASU 2011-08, an entity is not required to perform step one of the goodwill impairment test for a reporting unit if it is more likely than not that its fair value is greater than its carrying amount. For the annual goodwill impairment test as of December 31, 2017, the Company performed a quantitative step one goodwill impairment test and concluded that the fair values of each of the reporting units exceeded their respective carrying values. No goodwill impairment was recorded during 2017.
Foreign currency translation	Foreign currency translation The United States Dollar (USD) is the functional currency of GSE and our subsidiaries operating in the United States. Our subsidiaries' financial statements are maintained in their functional currencies. The functional currency of each of our foreign subsidiaries is the currency of the economic environment in which the subsidiary primarily does business. Our foreign subsidiaries' financial statements are translated into USD using the exchange rates applicable to the dates of the financial statements. Assets and liabilities are translated into USD using the period-end spot foreign exchange rates. Income and expenses are translated at the average exchange rate for the year. Equity accounts are translated at historical exchange rates. The effects of these translation adjustments are reported as a component of accumulated other comprehensive income (loss) included in the consolidated statements of changes in stockholders' equity. For any transaction that is in a currency different from the entity's functional currency, we record a gain or loss based on the difference between the exchange rate at the transaction date and the exchange rate at the transaction settlement date (or rate at period end, if unsettled) as foreign currency exchange gain (loss), net in the consolidated statements of operations.
Accrued warranty	Accrued warranty For contracts that contain a warranty provision, the Company provides an accrual for estimated future warranty costs based on historical experience and projected claims. The Company's contracts may contain warranty provisions ranging from one to two years. The current portion of the accrued warranty is presented separately on the consolidated balance sheets within current liabilities whereas the noncurrent portion is included in other liabilities. The activity in the accrued warranty accounts is as follows: (in thousands) As of and for the years ended December 31, 2017 2016 Beginning balance $ 1,478 $ 1,614 Current year provision 707 355 Current year claims (245) (467) Currency adjustment 13 (24) Ending balance $ 1,953 $ 1,478
Income taxes	Income taxes Income taxes are provided under the asset and liability method. Under this method, deferred income taxes are determined based on the differences between the consolidated financial statements and tax bases of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. Valuation allowances are established, when necessary, to reduce deferred tax assets to the amounts expected to be realized. A provision is made for the Company's current liability for federal, state and foreign income taxes and the change in the Company's deferred income tax assets and liabilities. We establish accruals for uncertain tax positions taken or expected to be taken in a tax return when it is not more likely than not (i.e., a likelihood of more than fifty percent) 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 fifty percent likely of being realized upon ultimate settlement. Favorable or unfavorable adjustment of the accrual for any particular issue would be recognized as an increase or decrease to income tax expense in the period of a change in facts and circumstances. Interest and penalties related to income taxes are accounted for as income tax expense.
Stock-based compensation	Stock-based compensation Share-based compensation expense is based on the grant-date fair value estimated in accordance with the provisions of ASC 718, Compensation-Stock Compensation
Income (loss) per share	Earnings per share Basic earnings per share is based on the weighted average number of outstanding common shares for the period. Diluted earnings per share adjusts the weighted average shares outstanding for the potential dilution that could occur if outstanding vested stock options were exercised. Basic and diluted earnings per share is based on the weighted average number of outstanding shares for the period. The number of common shares and common share equivalents used in the determination of basic and diluted earnings per share were as follows: (in thousands, except for per share data) Years ended December 31, 2017 2016 Numerator: Net income $ 5,384 $ 1,422 Denominator: Weighted-average shares outstanding for basic earnings per share 19,259,966 18,218,681 Effect of dilutive securities: Stock options and restricted stock units 345,461 293,585 Adjusted weighted-average shares outstanding and assumed conversions for diluted earnings per share 19,605,427 18,512,266 Shares related to dilutive securities excluded because inclusion would be anti-dilutive 374,833 677,964 Conversion of certain outstanding stock options was not assumed for the years ended December 31, 2017 and 2016 because the impact would have been anti-dilutive.
Significant Customers and Concentration of credit risk	Significant customers and concentration of credit risk For the year ended December 31, 2017, we have a concentration of revenue from two individual customers, which accounted for approximately 39.0% of our consolidated revenue. For the year ended December 31, 2016, we have a concentration of revenue from an individual customer, which accounted for 10.2% of our consolidated revenue. No other individual customer accounted for more than 10% of our consolidated revenue in 2017 or 2016. As of December 31, 2017, we have a one customer that accounted for 26.7% of the Company's consolidated contract receivables. As of December 31, 2016, the Company did not have any customers that accounted for more than 10% of the Company's consolidated contract receivables.
Fair values of financial instruments	Fair values of financial instruments The carrying amounts of current assets and current liabilities reported in the consolidated balance sheets approximate fair value due to their short term duration.
Contingent consideration for business acquisitions	For the years ended December 31, 2017 and 2016, the Company did not have any transfers between fair value Level 1 and Level 2. The Company did not hold any non-financial assets or non-financial liabilities subject to fair value measurements on a recurring basis at December 31, 2017 or 2016. During the years ended December 31, 2017 and 2016, the Company did not have any transfers into or out of the Level 3 contingent consideration liability. The following table provides a roll-forward of the fair value of the contingent consideration categorized as Level 3 for the year ended December 31, 2017: (in thousands) Balance, January 1, 2017 $ 2,105 Payments made on contingent liabilities (850 Change in fair value 446 Balance, December 31, 2017 $ 1,701 The Company made the last payment of the contingent consideration in January 2018.
Derivative instruments	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 December 31, 2017, the Company had foreign exchange contracts outstanding of approximately 162.5 million Japanese Yen, 0.2 million Australian Dollars, and 24,000 Euro. At December 31, 2016, the Company had foreign exchange contracts outstanding of approximately 281.4 million Japanese Yen, 0.6 million Australian Dollars, 0.5 million Canadian Dollars, and 0.1 million Euro at fixed rates. The contracts expire on various dates through December 2018. The Company had not designated the foreign exchange contracts as hedges and had recorded the estimated fair value of the contracts in the consolidated balance sheet as follows: December 31, (in thousands) 2017 2016 Asset derivatives Prepaid expenses and other current assets $ 201 $ 57 Other assets - 84 201 141 Liability derivatives Other current liabilities - (20) - (20) Net fair value $ 201 $ 121 The changes in the fair value of the foreign exchange contracts are included in gain (loss) on derivative instruments, net in the consolidated statements of operations. The foreign currency denominated trade receivables, unbilled 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 years ended December 31, 2017 and 2016, the Company recognized a gain (loss) on its derivative instruments net as outlined below: Years ended December 31, (in thousands) 2017 2016 Foreign exchange contracts- change in fair value $ 73 $ 51 Remeasurement of related contract receivables and billings in excess of revenue earned 26 (69) $ 99 $ (18)
Reclassification	Reclassifications Certain prior year amounts have been reclassified to conform with the current year presentation. The Company reclassified the stock-based compensation related to management and administrative employees from cost of revenue and research and development expenses to selling, general and administrative expenses.
New accounting standards	Accounting pronouncements recently adopted In July 2015, the Financial Accounting Standards Board (FASB) issued ASU No. 2015-11, Simplifying the Measurement of Inventory (ASU 2015-11). ASU 2015-11 requires that an entity measure inventory at the lower of cost and net realizable value. This ASU does not apply to inventory measured using the last-in, first-out method. ASU 2015-11 was effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. We adopted ASU 2015-11 effective January 1, 20 In March 2016, the FASB issued ASU No. 2016-09, Compensation - Stock Compensation: Topic 718: Improvements to Employee Share Based Payment Accounting Accounting pronouncements not yet adopted In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers Subsequent to issuing ASU 2014-09, the FASB has issued a series of subsequent updates to the revenue recognition guidance in Topic 606, including ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net) Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Leases (Topic 840), and Leases (Topic 842): Amendments to SEC Paragraphs Pursuant to the Staff Announcement at the July 20, 2017 EITF Meeting and Rescission of Prior SEC Staff Announcements and Observer Comments The Company has completed its evaluation of the new standard and has assessed the impacts of adoption on the consolidated financial statements and disclosures based on the evaluation of our current contracts and revenue streams, which are described below. During the implementation of the new standard, we identified three broad revenue streams: 1) System Design and Build (SDB), 2) Software, and 3) Consulting and Training services. The SDB contracts typically consist of initial design, engineering, assembly and installation of training simulators which include hardware, software, labor, and PCS on the software. We primarily account for revenue under fixed-price SDB contracts using the percentage-of-completion method (input method). This methodology recognizes revenue and earnings as work progresses on the contract and is based on costs incurred to date compared to total estimated cost to complete the project. Under the new accounting standard, we identify two main performance obligations for a typical SDB contract: a fully functioning training simulator (which includes hardware, software, and labor) and PCS. For a training simulator, we will continue to use the percentage-of-completion method (input method) to account for revenue, and for PCS, we recognize revenue ratably over the term of the PCS. For the standalone sales of software and which do not require significant modifications or customization, revenue recognition is mostly consistent under both the previous and new standard. A software license sale contract with multiple deliverables typically includes the following elements: license, installation and training services and PCS. Under the current revenue recognition standard, due to the lack of VSOE, revenue is recognized ratably over the longest service period. Under the new revenue recognition standard, the total transaction price will be allocated to the identified performance obligations based on their relative standalone selling prices, and we will recognize the revenue as the performance obligations are satisfied. Specially, we will recognize license revenue when the software license is delivered to the customer; installation and training revenue will be recognized when the installation and training is completed without regard to a detailed evaluation of the point in time criteria due to the short-term nature of the installation and training services (1 to 2 days on average); and PCS revenue will be recognized ratably over the service period. The contracts within the consulting and training services revenue stream are primarily time and materials based in which customers are billed on a regular basis, such as weekly, biweekly or monthly. Revenue on time and material contracts is recognized as services are rendered and performed. Any unbilled amounts are typically billed the following month. Under the new standard, we elect to apply the "right to invoice" practical expedient outlined in ASC 606-10-55-18. The invoice amount represents the number of hours of approved time worked by each temporary worker multiplied by the bill rate for the type of work. As such, the Company will recognize revenue in the amount for which it has the right to invoice. Therefore, revenue recognition is mostly consistent under both the previous and new standard. We adopted the new standard effective January 1, 2018 to (i) all new contracts entered into after January 1, 2018 and (ii) all existing contracts for which all (or substantially all) of the revenue has not been recognized under legacy revenue guidance, using the modified retrospective transition method. The adoption of the new standard resulted in an increase of $0.9 million to the opening balance of accumulated deficit, primarily due to software contracts and the acceleration of software license revenue recognition. The Company is currently assessing the tax impact upon adoption of the new standard. Consolidated revenues presented in the comparative consolidated financial statements for periods prior to January 1, 2018 will not be revised. The disclosures in our notes to the consolidated financial statements related to revenue recognition will be significantly expanded under the new standard, specifically around the quantitative and qualitative information about performance obligations, changes in contract assets and liabilities, and disaggregation of revenue. In February 2016, the FASB issued ASU No. 2016-02, Leases In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses , which introduces new guidance for credit losses on instruments within its scope. The new guidance introduces an approach based on expected losses to estimate credit losses on certain types of financial instruments, including, but not limited to, trade and other receivables, held-to-maturity debt securities, loans and net investments in leases. The new guidance also modifies the impairment model for available-for-sale debt securities and requires the entities to determine whether all or a portion of the unrealized loss on an available-for-sale debt security is a credit loss. The standard also indicates that entities may not use the length of time a security has been in an unrealized loss position as a factor in concluding whether a credit loss exists. The ASU is effective for public companies for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Early adoption is permitted for all entities for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company is currently evaluating the effects, if any, that the adoption of this guidance will have on the Company's consolidated financial position, results of operations and cash flows. In August 2016, the FASB issued ASU No. 2016-15, Classification of Certain Cash Receipts and Cash Payments In November 2016, the FASB issued ASU No. 2016-18, Restricted Cash In January 2017, the FASB issued ASU No. 2017-01, Business Combinations: Clarifying the definition of a Business , which amends the current definition of a business. Under ASU 2017-01, to be considered a business, an acquisition would have to include an input and a substantive process that together significantly contributes to the ability to create outputs. ASU 2017-01 further states that when substantially all of the fair value of gross assets acquitted is concentrated in a single asset (or a group of similar assets), the assets acquired would not represent a business. The new guidance also narrows the definition of the term "outputs" to be consistent with how it is described in ASC 606, Revenue from Contracts with Customers . The changes to the definition of a business will likely result in more acquisitions being accounted for as asset acquisitions. ASU 2017-01 is effective for acquisitions commencing on or after December 15, 2017, with early adoption permitted. Adoption of this guidance will be applied prospectively on or after the effective date. In January 2017, the FASB issued ASU No. 2017-04, Simplifying the Test for Goodwill Impairment (ASU 2017-04). ASU 2017-04 simplifies the accounting for goodwill impairment by eliminating Step 2 of the current goodwill impairment test, which required a hypothetical purchase price allocation. Goodwill impairment will now be the amount by which the reporting unit's carrying value exceeds its fair value, limited to the carrying value of the goodwill. ASU 2017-04 is effective for financial statements issued for fiscal years, and interim periods beginning after December 15, 2019. In May 2017, the FASB issued ASU No. 2017-09, Compensation – Stock Compensation Compensation – Stock Compensation

Summary of Significant Accoun27

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2017
Summary of Significant Accounting Policies [Abstract]
Schedule of Warranties	The activity in the accrued warranty accounts is as follows: (in thousands) As of and for the years ended December 31, 2017 2016 Beginning balance $ 1,478 $ 1,614 Current year provision 707 355 Current year claims (245) (467) Currency adjustment 13 (24) Ending balance $ 1,953 $ 1,478
Schedule of Earnings Per Share, Basic and Diluted	The number of common shares and common share equivalents used in the determination of basic and diluted earnings per share were as follows: (in thousands, except for per share data) Years ended December 31, 2017 2016 Numerator: Net income $ 5,384 $ 1,422 Denominator: Weighted-average shares outstanding for basic earnings per share 19,259,966 18,218,681 Effect of dilutive securities: Stock options and restricted stock units 345,461 293,585 Adjusted weighted-average shares outstanding and assumed conversions for diluted earnings per share 19,605,427 18,512,266 Shares related to dilutive securities excluded because inclusion would be anti-dilutive 374,833 677,964
Schedule of Foreign Exchange Contracts, Statement of Financial Position	As of December 31, 2017, the Company had foreign exchange contracts outstanding of approximately 162.5 million Japanese Yen, 0.2 million Australian Dollars, and 24,000 Euro. At December 31, 2016, the Company had foreign exchange contracts outstanding of approximately 281.4 million Japanese Yen, 0.6 million Australian Dollars, 0.5 million Canadian Dollars, and 0.1 million Euro at fixed rates. The contracts expire on various dates through December 2018. The Company had not designated the foreign exchange contracts as hedges and had recorded the estimated fair value of the contracts in the consolidated balance sheet as follows: December 31, (in thousands) 2017 2016 Asset derivatives Prepaid expenses and other current assets $ 201 $ 57 Other assets - 84 201 141 Liability derivatives Other current liabilities - (20) - (20) Net fair value $ 201 $ 121
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss)	For the years ended December 31, 2017 and 2016, the Company recognized a gain (loss) on its derivative instruments net as outlined below: Years ended December 31, (in thousands) 2017 2016 Foreign exchange contracts- change in fair value $ 73 $ 51 Remeasurement of related contract receivables and billings in excess of revenue earned 26 (69) $ 99 $ (18)

Acquisition (Tables)

Acquisition (Tables)	12 Months Ended
	Dec. 31, 2017
Acquisition [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	The following table summarizes the consideration paid to acquire Absolute and the fair value of the assets acquired and liabilities assumed at the date of the transaction. The following amounts except for Cash are all reflected in the consolidated statement of cash flow within the "Acquisition of Absolute Consulting, Inc., net of cash acquired" line caption. Absolute ( in thousands Total purchase price $ 9,521 Purchase price allocation: Cash $ 455 Contract receivables 5,121 Prepaid expenses and other current assets 68 Property, and equipment, net 184 Intangible assets 2,569 Accounts payable, accrued expenses, and other liabilities (78) Accrued compensation (1,617) Total identifiable net assets 6,702 Goodwill 2,819 Net assets acquired $ 9,521
Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]	The Company identified $2.6 million of other intangible assets, including customer relationships and trademarks/names with amortization periods of three to ten years. The following table summarizes the fair value of intangibles 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 10 $ 1,856 Trademarks/Names 3 713 Total $ 2,569
Business Acquisition, Pro Forma Information [Table Text Block]	Unaudited Pro Forma Financial Information The acquired business contributed revenue of $8.7 million and earnings of $0.6 million to GSE for the period from September 20, 2017 to December 31, 2017. The following unaudited pro forma summary presents consolidated information of GSE as if the business combination had occurred on January 1, 2016. The unaudited pro forma financial information was prepared based on historical financial information. These pro forma amounts have been calculated after applying GSE's accounting policies and adjusting the results of Absolute to reflect the additional depreciation and amortization that would have been charged assuming the fair value adjustments to fixed assets and intangible assets had been applied from January 1, 2016, with the consequential tax effects. In 2017, GSE and Absolute have incurred $0.5 million of acquisition-related costs. These expenses are included in general and administrative expense on GSE's consolidated statements of operations and are reflected in pro forma earnings for the year ended December 31, 2016, in the table below. 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, 2016, nor is it intended to be an indication of future operating results. (in thousands) (unaudited) Year Ended December 31, 2017 2016 Revenue $ 99,484 $ 93,147 Net income 5,735 1,362

Restructuring Expenses (Tables)

Restructuring Expenses (Tables)	12 Months Ended
	Dec. 31, 2017
Restructuring Expenses [Abstract]
Restructuring and Related Costs [Table Text Block]	GSE will eliminate approximately 40 positions due to these changes, primarily in Europe and India, and will undertake other cost-savings measures. The restructuring plan is expected to be completed in 2018. As a result of these efforts, GSE expects to record a restructuring charge of approximately $1.7 million, primarily related to workforce reductions, contracts termination costs and asset write-offs due to the exit activities. We recorded a restructuring charge of $0.7 million for the year ended December 31, 2017, and we expect to record the remaining charges, primarily reflecting the office closure costs, in the first quarter of 2018. The following table summarize the restructuring costs. The amounts to be transferred from cumulative translation adjustments and included in determining net income for the period, in which the liquidation of these foreign entities are completed (2018), are not included in the table below. ( in thousands Total Expected Costs Costs for the Year Expected Costs Remaining Employee termination benefits $ 499 $ 465 $ 34 Lease termination costs 665 - 665 Assets write-offs 222 222 - Other restructuring costs 303 46 257 Total $ 1,689 $ 733 $ 956 The restructuring costs related to our Performance Improvement Solutions segment and were included in the consolidated statement of operations within the "Restructuring charges" line caption. The accrued employee termination benefits of $0.5 million were reflected in the "Accrued compensation" line in the consolidated balance sheet. No payment had been made as of December 31, 2017.

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets [Abstract]
Schedule of Intangible Assets	The following table shows the gross carrying amount and accumulated amortization of definite-lived intangible assets: (in thousands) As of December 31, 2017 Gross Carrying Amount Accumulated Amortization Net Amortized intangible assets Customer relationships $ 3,074 $ (1,218) $ 1,856 Trade names 713 (33) 680 Developed technology 471 (412) 59 Non-contractual customer relationships 433 (426) 7 Others 167 (165) 2 Total $ 4,858 $ (2,254) $ 2,604 (in thousands) As of December 31, 2016 Gross Carrying Amount Accumulated Amortization Net Amortized intangible assets Customer relationships $ 1,425 $ (1,235) $ 190 Non-contractual customer relationships 911 (674) 237 Developed technology 471 (353) 118 Others 217 (211) 6 Foreign currency translation (145) 48 (97) Total $ 2,879 $ (2,425) $ 454
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	Amortization expense related to definite-lived intangible assets totaled $335,000 and $289,000 for the years ended December 31, 2017 and 2016, 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,: 2018 $ 734 2019 578 2020 472 2021 229 2022 168 Thereafter 423 $ 2,604

Contract Receivables (Tables)

Contract Receivables (Tables)	12 Months Ended
	Dec. 31, 2017
Contract Receivables [Abstract]
Components of 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) December 31, 2017 2016 Billed receivables $ 8,154 $ 13,325 Recoverable costs and accrued profit not yet billed 5,980 5,555 Allowance for doubtful accounts (137) (17) Total contract receivables, net $ 13,997 $ 18,863 During January 2018, the Company invoiced $4.7 million of the unbilled amounts related to the balance at December 31, 2017. On March 29, 2017, Westinghouse, a customer of our Performance Improvement Solutions segment, filed for Chapter 11 bankruptcy protection in the United States Bankruptcy Court for the Southern District of New York, Case No. 17-10751. During the second quarter of 2017, Westinghouse assumed one of our contracts related to Southern Nuclear Company. Therefore, we have not recorded a reserve for outstanding receivables related to this contract. On July 31, 2017, South Carolina Electric and Gas Company announced that it will cease construction of new nuclear plants at the V.C. Summer Nuclear Station, one of the facilities for which the Company has an executory contract with Westinghouse for the provision of simulator software and equipment. Although there has been no formal rejection of the contract as part of the Westinghouse bankruptcy process, GSE now considers it likely that Westinghouse will reject the parties' contract pertaining to the V.C. Summer Nuclear Station. Therefore, at June 30, 2017, GSE reserved 100% of accounts receivable, unbilled receivables, and billings in excess related to the V.C. Summer Nuclear Station, resulting in a net bad debt charge of $118,000. At December 31, 2017, in addition to the foregoing amounts associated with the V.C. Summer Nuclear Station, the Company had approximately $31,000 in net billed and unbilled pre-petition receivables attributable to Westinghouse, and it was fully collected in January 2018. Therefore, none of the remaining outstanding amounts have been reserved at December 31, 2017.
Allowance for doubtful account rollforward [Text Block]	The activity in the allowance for doubtful accounts is as follows: (in thousands) As of and for the years ended December 31, 2017 2016 Beginning balance $ 17 $ 103 Current year provision 118 - Current year write-offs - (86) Currency adjustment 2 - Ending balance $ 137 $ 17

Prepaid Expenses and Other Cu32

Prepaid Expenses and Other Current Assets (Tables)	12 Months Ended
	Dec. 31, 2017
Prepaid Expenses and Other Current Assets [Abstract]
Schedule of Prepaid Expenses and Other Current Assets	6. Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets consist of the following: (in thousands) December 31, 2017 2016 Inventory $ 755 $ - Income tax receivable 418 446 Prepaid expenses 549 422 Other current assets 1,073 1,184 Total $ 2,795 $ 2,052 Inventory is being purchased to support the construction of three major nuclear simulation projects related to a significant contract that was executed during the first quarter of 2016. Inventory is recorded at the lower of cost or net realizable value in accordance with ASC 330, Inventory. Other current assets primarily includes value-added tax receivables and cash deposited in a Swedish tax account.

Equipment, Software, and Leas33

Equipment, Software, and Leasehold Improvements, net (Tables)	12 Months Ended
	Dec. 31, 2017
Equipment, Software and Leasehold Improvements, net [Abstract]
Equipment, Software and Leasehold Improvements	Equipment, software and leasehold improvements, net consist of the following: (in thousands) December 31, 2017 2016 Computer equipment $ 2,101 $ 2,988 Software 1,598 1,511 Leasehold improvements 454 527 Furniture and fixtures 629 1,733 4,782 6,759 Accumulated depreciation (3,719) (5,527) Equipment, software and leasehold improvements, net $ 1,063 $ 1,232

Other Assets (Tables)

Other Assets (Tables)	12 Months Ended
	Dec. 31, 2017
Other Assets [Abstract]
Schedule of Other Assets	Other assets consist of the following: (in thousands) December 31, 2017 2016 Inventory $ - $ 1,443 Other 37 131 Total $ 37 $ 1,574

Software Development Costs, n35

Software Development Costs, net (Tables)	12 Months Ended
	Dec. 31, 2017
Software Development Costs, net [Abstract]
Schedule of Software Development Costs	Software development costs, net consist of the following: (in thousands) December 31, 2017 2016 Beginning balance $ 982 $ 1,145 Additions 177 245 Amortization (469) (408) Ending balance $ 690 $ 982

Fair Value of Financial Instr36

Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2017
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 December 31, 2017: 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 $ 3,240 $ - $ - $ 3,240 Foreign exchange contracts - 201 - 201 Total assets $ 3,240 $ 201 $ - $ 3,441 Contingent consideration liability - - (1,701) (1,701) Total liabilities $ - $ - $ (1,701) $ (1,701) The following table presents assets and liabilities measured at fair value at December 31, 2016: 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 $ 16,435 $ - $ - $ 16,435 Foreign exchange contracts - 141 - 141 Total assets $ 16,435 $ 141 $ - $ 16,576 Foreign exchange contracts $ - $ (20) $ - $ (20) Contingent consideration liability - - (2,105) (2,105) Total liabilities $ - $ (20) $ (2,105) $ (2,125)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	For the years ended December 31, 2017 and 2016, the Company did not have any transfers between fair value Level 1 and Level 2. The Company did not hold any non-financial assets or non-financial liabilities subject to fair value measurements on a recurring basis at December 31, 2017 or 2016. During the years ended December 31, 2017 and 2016, the Company did not have any transfers into or out of the Level 3 contingent consideration liability. The following table provides a roll-forward of the fair value of the contingent consideration categorized as Level 3 for the year ended December 31, 2017: (in thousands) Balance, January 1, 2017 $ 2,105 Payments made on contingent liabilities (850 Change in fair value 446 Balance, December 31, 2017 $ 1,701 The Company made the last payment of the contingent consideration in January 2018.

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2017
Income Taxes [Abstract]
Schedule of Income before Income Tax, Domestic and Foreign	The consolidated income before income taxes, by domestic and foreign sources, is as follows: (in thousands) Years ended December 31, 2017 2016 Domestic $ 1,580 $ 2,873 Foreign (1,176) (1,101) Total $ 404 $ 1,772
Schedule of Components of Income Tax Expense (Benefit)	The (benefit) provision for income taxes is as follows: (in thousands) Years ended December 31, 2017 2016 Current: Federal $ 459 $ - State 47 6 Foreign 19 221 Subtotal 525 227 Deferred: Federal (4,694) 127 State (942) 19 Foreign 131 (23) Subtotal (5,505) 123 Total $ (4,980) $ 350
Schedule of Effective Income Tax Rate Reconciliation	The effective income tax rate for the years ended December 31, 2017 and 2016 differed from the statutory federal income tax rate as presented below: Effective Tax Rate Percentage (%) Years ended December 31, 2017 2016 Statutory federal income tax rate 34.0% 34.0% State income taxes, net of federal tax benefit (184.9)% 1.3% Effect of foreign operations 55.6% 8.6% Change in valuation allowance (2,045.3)% (46.9)% Change in tax rate 619.1% 0.0% Uncertain tax positions 338.6% 11.8% Worthless stock deduction (257.6%) 0.0% Stock-based compensation (51.7)% 0.2% Transfer pricing adjustments 117.5% (0.4)% 162(m) limit on compensation 52.3% 4.1% Change in APB 23 liability 46.2% 0.0% Meals and entertainment 37.8% 7.7% Other permanent differences 5.7% (0.6)% Effective tax rate (1,232.7)% 19.8% The difference between the effective rate and statutory rate in 2017 primarily resulted from the release of valuation allowance and change in the statutory tax rate from 34% to 21%, effective for tax years beginning after December 31, 2017 due to the Tax Cuts and Jobs Act.
Schedule of Deferred Tax Assets and Liabilities	Deferred income taxes arise from temporary differences between the tax bases of assets and liabilities and their reported amounts in the consolidated financial statements. A summary of the tax effect of the significant components of the deferred income tax assets and liabilities is as follows: (in thousands) As of December 31, 2017 2016 Deferred tax assets: Net operating loss carryforwards $ 5,009 $ 7,868 Capital loss carryforwards 383 549 Accruals 487 183 Reserves 514 514 Alternative minimum tax credit carryforwards 299 203 Stock-based compensation expense 1,002 1,224 Intangibles 433 391 Undistributed earnings of foreign subsidiary - 37 Other 135 71 Total deferred tax asset 8,262 11,040 Valuation allowance (1,095) (10,477) Total deferred tax asset less valuation allowance 7,167 563 Deferred tax liabilities: Undistributed earnings of foreign subsidiary (149) - Software development costs (188) (382) Fixed Assets (91) (161) Indefinite-lived intangibles (337) (316) Other (45) (27) Total deferred tax liability (810) (886) Net deferred tax asset $ 6,357 $ (323) Deferred tax liabilities are included in "Other liabilities" on the consolidated balance sheet.
Summary of Income Tax Contingencies	The following table outlines the Company's foreign uncertain tax liabilities, including accrued interest and penalties for each jurisdiction: China Ukraine South Korea U.S. (in thousands) Tax Interest and Penalties Tax Interest and Penalties Tax Interest and Penalties Tax Total Balance, January 1, 2016 $ 225 $ 152 $ 21 $ 15 $ - $ - $ - $ 413 Increases - 57 68 13 129 8 - 275 Decreases 23 - - - - - - 23 Balance, December 31, 2016 $ 202 $ 209 $ 89 $ 28 $ 129 $ 8 $ - $ 665 Increases 14 53 11 - 212 37 833 1,160 Decreases - - - - - - - - Balance, December 31, 2017 $ 216 $ 262 $ 100 $ 28 $ 341 $ 45 $ 833 $ 1,825

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2017
Stock-Based Compensation [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	Information with respect to stock option activity as of and for the year ended December 31, 2017 is as follows: Number of Shares Weighted Average Exercise Price Aggregate Intrinsic Value (in thousands) Weighted Average Remaining Contractual Life (Years) Options outstanding at January 1, 2017 1,556,833 $ 3.15 Options granted - - Options exercised (320,000) 2.05 Options forfeited (190,000) 4.01 Options outstanding at December 31, 2017 1,046,833 3.33 $ 928 1.28 Options expected to vest 24,000 1.90 $ 33 4.72 Options exercisable at December 31, 2017 1,022,833 $ 3.36 $ 895 1.20 Information with respect to stock option activity as of and for the year ended December 31, 2016 is as follows: Number of Shares Weighted Average Exercise Price Aggregate Intrinsic Value (in thousands) Weighted Average Remaining Contractual Life (Years) Options outstanding at January 1, 2016 2,222,333 $ 3.01 Options granted 40,000 2.25 Options exercised (492,200) 1.86 Options forfeited (213,300) 4.77 Options outstanding at December 31, 2016 1,556,833 3.15 $ 1,573 2.05 Options expected to vest 72,000 1.87 $ 117 5.45 Options exercisable at December 31, 2016 1,484,833 $ 3.21 $ 1,456 1.89
Schedule of Nonvested Share Activity	A summary of the status of the Company's nonvested options as of and for the year ended December 31, 2017 is presented below. Number of Shares Weighted Average Fair Value Nonvested options at January 1, 2017 72,000 $ 0.97 Options granted - - Options forfeited - - Options vested during the period (48,000) 0.97 Nonvested options at December 31, 2017 24,000 $ 0.97 A summary of the status of the Company's nonvested options as of and for the year ended December 31, 2016 is presented below. Number of Shares Weighted Average Fair Value Nonvested options at January 1, 2016 218,522 $ 0.89 Options granted 40,000 1.15 Options forfeited (32,300) 0.91 Options vested during the period (154,222) 0.92 Nonvested options at December 31, 2016 72,000 $ 0.97
Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions	The Company uses a Black-Scholes valuation model to estimate the fair value of the options at grant date based on the assumptions noted in the following table. Volatility represents an average of market estimates for implied volatility of the Company's common stock. The expected life is estimated based on an analysis of options already exercised and any foreseeable trends or changes in recipients' behavior. The risk-free interest rate is an interpolation of the relevant U.S. Treasury security maturities as of each applicable grant date: Years ended December 31, 2017 2016 [1] Risk-free interest rates - 1.53% Dividend yield 0% Expected life - 7 years Volatility - 49.05% Weighted average volatility 49.05% [1] The Company did not grant stock options during the year ended December 31, 2017.
Restricted Stock Units	During the years ended December 31, 2017 and 2016, the Company issued RSUs to employees which vest upon the achievement of specific market-based or time-based measures. The fair value for RSU's is calculated based on the stock price on the grant date and expensed ratably over the requisite service period, which ranges between one and five years. The following table summarizes the information about vested and unvested restricted stock units for the years ended December 31, 2017 and 2016. Number of Shares Weighted Average Fair Value Nonvested RSUs at January 1, 2017 1,688,480 $ 1.45 RSUs granted 644,677 3.24 RSUs forfeited (5,500) 3.40 RSUs vested (692,994) 1.89 Nonvested RSUs at December 31, 2017 1,634,663 $ 1.96 Nonvested RSUs at January 1, 2016 1,367,500 $ 0.76 RSUs granted 1,537,399 1.52 RSUs forfeited (505,000) 0.76 RSUs vested (711,419) 0.76 Nonvested RSUs at December 31, 2016 1,688,480 $ 1.45 As of December 31, 2017, the Company had $1.6 million of unrecognized compensation expense related to the RSUs expected to be recognized on a pro-rata straight line basis over a weighted average remaining service period of approximately 3.9 years.

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases	The Company is obligated under certain noncancelable operating leases for office facilities and equipment. Future minimum lease payments under noncancelable operating leases as of December 31, 2017 are as follows: (in thousands) Gross Future Minimum Lease Payments 2018 $ 1,506 2019 793 2020 702 2021 716 2022 709 Thereafter 541 Total $ 4,967

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2017
Segment Information [Abstract]
Reconciliation of Operating Profit (Loss) from Segments to Consolidated	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) income before income taxes. (in thousands) Years ended December 31, 2017 2016 Revenue: Performance Improvement Solutions $ 39,899 $ 35,474 Nuclear Industry Training and Consulting 30,981 17,627 $ 70,880 $ 53,101 Operating income Performance Improvement Solutions $ (2,745) $ (856) Nuclear Industry Training and Consulting 3,420 2,224 Change in fair value of contingent consideration, net (446) 207 Operating income $ 229 $ 1,575 Interest income, net 80 85 Gain (loss) on derivative instruments, net 99 (18) Other (expense) income, net (4) 130 Income before income taxes $ 404 $ 1,772
Reconciliation of Assets from Segment to Consolidated	Additional information relating to segments is as follows: (in thousands) December 31, 2017 2016 Performance Improvement Solutions $ 34,107 $ 42,383 Nuclear Industry Training and Consulting 22,748 11,249 Intercompany receivable elimination - 24 Total assets $ 56,855 $ 53,656
Schedule of Segment Reporting Information, by Segment	For the years ended December 31, 2017 and 2016, 83% and 73%, respectively, of the Company's consolidated revenue was from customers in the nuclear power industry. The Company designs, develops and delivers business and technology solutions to the energy industry worldwide. Revenue, operating income (loss) and total assets for the Company's United States, European, and Asian subsidiaries as of and for the years ended December 31, 2017 and 2016 are as follows: (in thousands) Year ended December 31, 2017 United States Europe Asia Eliminations Consolidated Revenue $ 66,249 $ 3,196 $ 1,435 $ - $ 70,880 Transfers between geographic locations 1,953 - 668 (2,621) - Total revenue $ 68,202 $ 3,196 $ 2,103 $ (2,621) $ 70,880 Operating income (loss) $ 1,930 $ (1,585) $ (116) $ - $ 229 Total assets, at December 31 $ 149,390 $ 5,057 $ 4,313 $ (101,905) $ 56,855 (in thousands) Year ended December 31, 2016 United States Europe Asia Eliminations Consolidated Revenue $ 46,149 $ 4,143 $ 2,809 $ - $ 53,101 Transfers between geographic locations 2,639 22 1,139 (3,800) - Total revenue $ 48,788 $ 4,165 $ 3,948 $ (3,800) $ 53,101 Operating loss $ 2,921 $ (896) $ (450) $ - $ 1,575 Total assets, at December 31 $ 121,728 $ 4,859 $ 4,064 $ (76,995) $ 53,656

Supplemental Disclosure of Ca41

Supplemental Disclosure of Cash Flow Information (Tables)	12 Months Ended
	Dec. 31, 2017
Supplemental Disclosure of Cash Flow Information [Abstract]
Schedule of Supplemental Disclosure of Cash Flow Information	(in thousands) Year ended December 31, 2017 2016 Cash paid: Interest $ - $ 13 Income taxes $ 155 $ 370

Summary of Significant Accoun42

Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Summary of Significant Accounting Policies [Abstract]
Term of warranty - Min	1 year
Term of Warranty - max	2 years
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 960	$ 1,140
Software Development Costs, net [Abstract]
Software Development Costs Useful Life	3 years
Development Expenditures [Abstract]
Development Expenditures	$ 1,600	1,600
Capitalized software development costs	177	245
Impairment of Long-Lived Assets to be Disposed of	222	0
Product Warranty [Roll Forward]
Beginning balance	1,478	1,614
Current year provision	707	355
Current year claims	(245)	(467)
Currency adjustment	13	(24)
Ending balance	1,953	1,478
Numerator: [Abstract]
Net income (loss)	$ 5,384	$ 1,422
Denominator: [Abstract]
Weighted-average shares outstanding for basic income (loss) per share (in shares)	19,259,966	18,218,681
Effect of dilutive securities [Abstract]
Stock options and restricted stock units (in shares)	345,461	293,585
Adjusted weighted-average shares outstanding and assumed conversions for diluted income (loss) per share (in shares)	19,605,427	18,512,266
Shares related to dilutive securities excluded because inclusion would be anti-dilutive (in shares)	374,833	677,964
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets		$ 1,100
Item Effected [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption		1,173
Interest-bearing Deposits [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 1,000	1,100
Interest Income, Other Domestic Deposits	2	$ 6
Accounting Standards Update 2014-09 [Member]
Item Effected [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption	$ 900
Equipment, Software and Leasehold Improvements, net [Member] | Maximum [Member]
Equipment, software and leasehold improvements, net [Abstract]
Estimated useful life	10 years
Equipment, Software and Leasehold Improvements, net [Member] | Minimum [Member]
Equipment, software and leasehold improvements, net [Abstract]
Estimated useful life	3 years

Summary of Significant Accoun43

Summary of Significant Accounting Policies, Concentration of Credit Risk (Details) - Customer	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Revenue by major customers [Abstract]
Number of major customers that contribute to the revenue concentration	2	1
Customer Concentration Risk [Member]
Revenue by major customers [Abstract]
Percentage of revenue contributed by major customers	39.00%	10.20%
Credit Concentration Risk [Member]
Revenue by major customers [Abstract]
Percentage of revenue contributed by major customers	26.70%
Revenue [Member]
Revenue by major customers [Abstract]
Percentage of revenue contributed by major customers	10.00%
Accounts Receivable [Member]
Revenue by major customers [Abstract]
Percentage of revenue contributed by major customers	10.00%

Summary of Significant Accoun44

Summary of Significant Accounting Policies, Derivative Instruments, Foreign Exchange Contracts (Details) ¥ in Millions, $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2017EUR (€)	Dec. 31, 2017JPY (¥)	Dec. 31, 2017AUD ($)	Dec. 31, 2016CAD ($)	Dec. 31, 2016EUR (€)	Dec. 31, 2016JPY (¥)	Dec. 31, 2016AUD ($)
Derivative [Line Items]
Expiration date of contract	Dec. 20, 2018
Foreign Exchange Contract [Member] | Canada, Dollars
Derivative [Line Items]
Foreign exchange contract outstanding				$ 0.5
Foreign Exchange Contract [Member] | Japan, Yen
Derivative [Line Items]
Foreign exchange contract outstanding | ¥		¥ 162.5				¥ 281.4
Foreign Exchange Contract [Member] | Euro [Member]
Derivative [Line Items]
Foreign exchange contract outstanding | €	€ 24,000				€ 100,000
Foreign Exchange Contract [Member] | Australian Dollars [Member]
Derivative [Line Items]
Foreign exchange contract outstanding			$ 0.2				$ 0.6

Summary of Significant Accoun45

Summary of Significant Accounting Policies, Derivative Instruments, Fair Values Derivatives, Balance Sheet Location (Details) - Foreign Exchange Contract [Member] - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Estimated fair value of the contracts in the consolidated balance sheets [Abstract]
Asset derivatives	$ 201	$ 141
Liability derivatives	0	20
Net fair value	201	121
Prepaid Expenses and Other Current Assets [Member]
Estimated fair value of the contracts in the consolidated balance sheets [Abstract]
Asset derivatives	201	57
Other Assets [Member]
Estimated fair value of the contracts in the consolidated balance sheets [Abstract]
Asset derivatives	0	84
Other Current Liabilities [Member]
Estimated fair value of the contracts in the consolidated balance sheets [Abstract]
Liability derivatives	$ 0	$ 20

Summary of Significant Accoun46

Summary of Significant Accounting Policies, Derivative Instruments, Gain (Loss) On Derivative Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Foreign exchange contracts- change in fair value	$ 73	$ 51
Remeasurement of related contract receivables, billings in excess of revenue earned, and subcontractor accruals	26	(69)
(Loss) gain on derivative instruments, net	$ 99	$ (18)

Acquisition (Details)

Acquisition (Details) - USD ($) $ in Thousands	Sep. 20, 2017	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition	Sep. 20, 2017
Business Acquisition, Name of Acquired Entity	Absolute Consulting, Inc.
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Goodwill		$ 8,431	$ 8,431	$ 5,612
Revenues			70,880	53,101
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 2,569
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 1,856
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	10 years
Trademarks and Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 713
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	3 years
Absolute Consulting [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	100.00%
Payments to Acquire Businesses, Gross	$ 9,521
Cash Consideration Before Working Capital Adjustment	8,750
Cash consideration in escrow	1,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	455
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables	5,121
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets	68
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Equipment	184
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	2,569
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable	(78)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other	(1,617)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	6,702
Goodwill	2,819
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	9,521
Business Acquisition, Goodwill, Expected Tax Deductible Amount	2,819
Business Combination, Acquired Receivables, Gross Contractual Amount	5,121
Business Combination, Acquired Receivable, Fair Value	5,121
Business Combination, Acquired Receivables, Estimated Uncollectible	0
Business Acquisition, Pro Forma Revenue			99,484	93,147
Business Acquisition, Pro Forma Net Income (Loss)			$ 5,735	$ 1,362
Business Acquisition, Transaction Costs	$ 473
Revenues		8,737
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		$ 561

Restructuring Expenses (Details

Restructuring Expenses (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)Right	Dec. 31, 2016USD ($)
Restructuring and Related Cost, Expected Cost [Abstract]
Restructuring and Related Cost, Cost Incurred to Date	$ 733
Restructuring and Related Cost, Expected Cost Remaining	956
Restructuring and Related Cost, Expected Cost, Total	1,689
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance	0
Restructuring charges	778	$ 490
Payments for Restructuring	0
Restructuring Reserve, Ending Balance	$ 465	$ 0
Restructuring and Related Cost, Number of Positions Eliminated | Right	40
Employee Severance [Member]
Restructuring and Related Cost, Expected Cost [Abstract]
Restructuring and Related Cost, Cost Incurred to Date	$ 465
Restructuring and Related Cost, Expected Cost Remaining	34
Restructuring and Related Cost, Expected Cost, Total	499
Restructuring Reserve [Roll Forward]
Restructuring charges	465
Contract Termination [Member]
Restructuring and Related Cost, Expected Cost [Abstract]
Restructuring and Related Cost, Cost Incurred to Date	0
Restructuring and Related Cost, Expected Cost Remaining	665
Restructuring and Related Cost, Expected Cost, Total	665
Assets Write-off [Member]
Restructuring and Related Cost, Expected Cost [Abstract]
Restructuring and Related Cost, Cost Incurred to Date	222
Restructuring and Related Cost, Expected Cost Remaining	0
Restructuring and Related Cost, Expected Cost, Total	222
Other Restructuring [Member]
Restructuring and Related Cost, Expected Cost [Abstract]
Restructuring and Related Cost, Cost Incurred to Date	46
Restructuring and Related Cost, Expected Cost Remaining	257
Restructuring and Related Cost, Expected Cost, Total	$ 303

Goodwill and Intangible Asset49

Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Goodwill and Intangible Assets [Abstract]
Goodwill	$ 8,431	$ 5,612
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	4,858	2,879
Accumulated amortization	(2,254)	(2,425)
Total	2,604	454
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2,017	734
2,018	578
2,019	472
2,020	229
2,021	168
Thereafter	423
Total	2,604	454
Amortization of definite-lived intangible assets	335	289
Impairment of Intangible Assets, Finite-lived	95
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	3,074	1,425
Accumulated amortization	(1,218)	(1,235)
Total	1,856	190
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	1,856	190
Non Contractual Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	433	911
Accumulated amortization	(426)	(674)
Total	7	237
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	7	237
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	471	471
Accumulated amortization	(412)	(353)
Total	59	118
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	59	118
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	713
Accumulated amortization	(33)
Total	680
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	680
Foreign Currency Translation [Member]
Finite-Lived Intangible Assets [Line Items]
Foreign currency translation		(145)
Foreign currency translation		48
Foreign currency translation		(97)
Others [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	167	217
Accumulated amortization	(165)	(211)
Total	2	6
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	$ 2	$ 6

Contract Receivables (Details)

Contract Receivables (Details) - USD ($)	1 Months Ended	12 Months Ended
	Jan. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Contract Receivables [Abstract]
Maximum term of contract receivables		12 months
Components of contract receivables [Abstract]
Billed receivables				$ 8,154,000	$ 13,325,000
Recoverable costs and accrued profit not yet billed				5,980,000	5,555,000
Allowance for doubtful accounts	$ (137,000)	$ (137,000)	$ (17,000)	(137,000)	(17,000)
Total contract receivables, net				13,997,000	$ 18,863,000
Allowance for Doubtful Accounts Receivable [Roll Forward]
Allowance for Doubtful Accounts Receivable	137,000	17,000	103,000
Provision for Doubtful Accounts		118,000	0
Allowance for Doubtful Accounts Receivable, Write-offs		0	(86,000)
Currency Adjustments for Allowance for Doubtful Accounts		2,000	0
Allowance for Doubtful Accounts Receivable, Ending Balance		$ 137,000	$ 17,000
Subsequent Billing	$ 4,700,000
Net exposure to Westinghouse				$ 31,000

Prepaid Expenses and Other Cu51

Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Prepaid Expenses and Other Current Assets [Abstract]
Inventory	$ 755	$ 0
Income tax receivable	418	446
Prepaid expenses	549	422
Other current assets	1,073	1,184
Total prepaid expenses and other current assets	$ 2,795	$ 2,052

Equipment, Software, and Leas52

Equipment, Software, and Leasehold Improvements, net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Equipment, Software and Leasehold Improvements [Line Items]
Equipment, software, and leasehold improvements	$ 4,782	$ 6,759
Accumulated depreciation	(3,719)	(5,527)
Equipment, software, and leasehold improvements, net	1,063	1,232
Depreciation	342	383
Impairment of Long-Lived Assets to be Disposed of	222	0
Computer Equipment [Member]
Equipment, Software and Leasehold Improvements [Line Items]
Equipment, software, and leasehold improvements	2,101	2,988
Impairment of Long-Lived Assets to be Disposed of	100
Software [Member]
Equipment, Software and Leasehold Improvements [Line Items]
Equipment, software, and leasehold improvements	1,598	1,511
Leasehold Improvements [Member]
Equipment, Software and Leasehold Improvements [Line Items]
Equipment, software, and leasehold improvements	454	527
Furniture and Fixtures [Member]
Equipment, Software and Leasehold Improvements [Line Items]
Equipment, software, and leasehold improvements	$ 629	$ 1,733

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Other Assets [Abstract]
Inventory	$ 0	$ 1,443
Other	37	131
Total	$ 37	$ 1,574

Software Development Costs, n54

Software Development Costs, net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Software Development Costs, net [Abstract]
Beginning balance	$ 982	$ 1,145
Additions	177	245
Amortization	(469)	(408)
Impairment	0	0
Ending balance	$ 690	$ 982

Fair Value of Financial Instr55

Fair Value of Financial Instruments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)Letter	Dec. 31, 2016USD ($)
Performance Bond [Abstract]
Unrestricted cash	$ 2,300	$ 15,300
Number of standby letters of credit | Letter	3
Letter of credit and surety bonds	$ 900
Assets and liabilities measured at fair value [Abstract]
Money market funds	3,240	16,435
Foreign exchange contracts - Assets	201	141
Total assets	3,441	16,576
Foreign exchange contracts - Liabilities		(20)
Contingent consideration liability	(1,701)	(2,105)
Total liabilities	(1,701)	(2,125)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings, Description	446
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements	(850)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value, Beginning Balance	2,105
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets and liabilities measured at fair value [Abstract]
Money market funds	3,240	16,435
Foreign exchange contracts - Assets	0	0
Total assets	3,240	16,435
Foreign exchange contracts - Liabilities		0
Contingent consideration liability	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 - Assets	201	141
Total assets	201	141
Foreign exchange contracts - Liabilities		(20)
Contingent consideration liability	0	0
Total liabilities	0	(20)
Significant Unobservable Inputs (Level 3) [Member]
Assets and liabilities measured at fair value [Abstract]
Money market funds	0	0
Foreign exchange contracts - Assets	0	0
Total assets	0	0
Foreign exchange contracts - Liabilities		0
Contingent consideration liability	(1,701)	(2,105)
Total liabilities	(1,701)	$ (2,105)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value, Ending Balance	$ 1,701

Long-Term Debt (Details)

Long-Term Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Line of Credit Facility [Line Items]
Long-term debt	$ 0	$ 0
Restricted cash and investments	1	$ 1.1
BB&T Bank [Member]
Line of Credit Facility [Line Items]
Outstanding letter of credit balance	0.9
BB&T Bank [Member] | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Principal amount of the line of credit	$ 7.5
Line of Credit Facility, Affiliated Borrower	3
BB&T Bank [Member] | Revolving Credit Facility [Member] | Wall Street Journal Prime Rate [Member]
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	4.50%
Citizen's Bank [Member]
Line of Credit Facility [Line Items]
Outstanding letter of credit balance	$ 0.8
Citizen's Bank [Member] | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Principal amount of the line of credit	$ 5
Line of Credit Facility, Affiliated Borrower	3
Amount available at the reporting date	$ 4
Line of Credit Facility, Expiration Period	3 years
Percentage of letter of credit fees per annum	1.25%
Citizen's Bank [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	2.25%

Income Taxes (Details)

Income Taxes (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)Subsidiary	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Income (Loss) from Continuing Operations [Abstract]
Domestic	$ 1,580	$ 2,873
Foreign	(1,176)	(1,101)
Income before income taxes	404	1,772
Current: [Abstract]
Federal	459	0
State	47	6
Foreign	19	221
Subtotal	525	227
Deferred [Abstract]
Federal	(4,694)	127
State (Terse)	(942)	19
Foreign	131	(23)
Subtotal	(5,505)	123
Total	$ (4,980)	$ 350
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal corporate income tax rate	34.00%	34.00%
State income taxes, net of federal tax benefit	(184.90%)	1.30%
Effect of foreign operations	55.60%	8.60%
Change in valuation allowance	(2045.30%)	(46.90%)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent	619.10%	0.00%
Uncertain tax positions	338.60%	11.80%
Effective Income Tax Rate Reconciliation Worthless Stock Deduction	(257.60%)	0.00%
Effective Income Tax Rate Reconciliation, Deduction, Employee Stock Ownership Plan Dividend, Percent	(51.70%)	0.20%
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent	117.50%	(0.40%)
Meals and entertainment	37.80%	7.70%
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent	46.20%	0.00%
Other	5.70%	(0.60%)
Effective tax rate	(1232.70%)	19.80%
Effective Income Tax Rate Reconciliation 162 (m) compensation limit	52.30%	4.10%
Deferred Tax Assets, Net [Abstract]
Net operating loss carryforwards	$ 5,009	$ 7,868
Capital loss carryforwards	383	549
Accruals	487	183
Reserves	514	514
Alternative minimum tax credit carryforwards	299	203
Stock-based compensation expense	1,002	1,224
Intangibles	433	391
Undistributed earnings of foreign subsidiary	0	37
Other	135	71
Total deferred tax asset	8,262	11,040
Valuation allowance	(1,095)	(10,477)
Total deferred tax assets less valuation allowance	7,167	563
Deferred Tax Liabilities: [Abstract]
Undistributed earnings of foreign subsidiaries	(149)	0
Software development costs	(188)	(382)
Fixed Assets	(91)	(161)
Indefinite-lived intangibles	(337)	(316)
Other	(45)	(27)
Total deferred tax liabilities	(810)	(886)
Net deferred tax asset (liability)	6,357	(323)
Change in valuation allowance	9,382
Deferred Tax Liabilities, Goodwill	337	316
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	5,000
Operating loss carryforwards	18,600
Operating Loss Carryforwards, expiration dates [Line Items]
Valuation allowance	1,095	10,477
Unrecognized tax benefits from stock option exercises	5,600
Income Tax Examination [Line Items]
Cash and cash equivalents	19,111	21,747	$ 11,084
Undistributed earnings of foreign subsidiaries	$ (149)	0
India [Member]
Income Tax Examination [Line Items]
Number of foreign subsidiaries | Subsidiary	1
China and United Kingdom [Member]
Income Tax Examination [Line Items]
Number of foreign subsidiaries | Subsidiary	2
U.K., Sweden, and China [Member]
Deferred Tax Assets, Net [Abstract]
Valuation allowance	$ (721)
Operating Loss Carryforwards, expiration dates [Line Items]
Valuation allowance	$ 721
Maximum [Member]
Operating Loss Carryforwards, expiration dates [Line Items]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2035
Minimum [Member]
Operating Loss Carryforwards, expiration dates [Line Items]
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2020
Foreign Tax Authority [Member]
Income Tax Examination [Line Items]
Cash and cash equivalents	$ 5,400	$ 4,200
Foreign earnings repatriate impact on income tax	331
Foreign Tax Authority [Member] | India [Member]
Deferred Tax Liabilities: [Abstract]
Undistributed earnings of foreign subsidiaries
Income Tax Examination [Line Items]
Undistributed earnings of foreign subsidiaries
Foreign Tax Authority [Member] | Sweden [Member]
Deferred Tax Liabilities: [Abstract]
Undistributed earnings of foreign subsidiaries	(109)
Income Tax Examination [Line Items]
Undistributed earnings of foreign subsidiaries	$ (109)

Income Taxes, Uncertain Tax Lia

Income Taxes, Uncertain Tax Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Uncertain Tax Liabilities, Total [Roll Forward]
Beginning balance	$ 665
Ending balance	1,825	$ 665
Federal [Member]
Tax [Roll Forward]
Increases	833
Ending balance	833
Foreign Tax Authority [Member]
Uncertain Tax Liabilities, Total [Roll Forward]
Beginning balance		413
Increases	1,160	275
Decreases	0	23
Foreign Tax Authority [Member] | China [Member]
Tax [Roll Forward]
Beginning balance	202	225
Increases	14	0
Decreases	0	23
Ending balance	216	202
Interest and Penalties [Roll Forward]
Beginning balance	209	152
Increases	53	57
Decreases	0	0
Ending balance	262	209
Foreign Tax Authority [Member] | Ukraine [Member]
Tax [Roll Forward]
Beginning balance	89	21
Increases	11	68
Decreases	0	0
Ending balance	100	89
Interest and Penalties [Roll Forward]
Beginning balance	28	15
Increases	0	13
Decreases	0	0
Ending balance	28	28
Foreign Tax Authority [Member] | South Korea [Member]
Tax [Roll Forward]
Beginning balance	129	0
Increases	212	129
Decreases	0	0
Ending balance	341	129
Interest and Penalties [Roll Forward]
Beginning balance	8	0
Increases	37	8
Decreases	0	0
Ending balance	$ 45	$ 8

Capital Stock (Details)

Capital Stock (Details) - $ / shares	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Capital Stock [Abstract]
Capital stock, shares authorized (in shares)	32,000,000
Common stock, shares authorized (in shares)	30,000,000	30,000,000
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Long Term Incentive Stock Option Plan 1995 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance (in shares)	4,301,854
Shares under options and warrants outstanding (in shares)	1,046,833	1,556,833	2,222,333
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance	1,634,663
Shares of common stock remaining to be granted (in shares)	1,620,358

Stock-Based Compensation (Detai

Stock-Based Compensation (Details)	12 Months Ended
	Dec. 31, 2017USD ($)Installment$ / sharesshares	Dec. 31, 2016USD ($)$ / sharesshares
Share-based Payment Award [Line Items]
Liability Classified Share-Based Comp Expense | $	$ 74,000	$ 151,000
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Unrecognized compensation expense | $	$ 1,600,000
Weighted average remaining service period	3 years 10 months 24 days
Cash received from exercise of stock options | $	$ 209,000	833,000
Aggregate intrinsic value of stock options exercised | $	$ 364,974	$ 407,566
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Risk free interest rate		1.53%
Dividend yield		0.00%
Expected life		7 years
Volatility rate		49.05%
Weighted average volatility		49.05%
Restricted Stock Units [Member]
Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested RSUs, beginning balance (in shares)	1,688,480	1,367,500
RSUs granted (in shares)	644,677	1,537,399
RSUs forfeited	(5,500)	(505,000)
RSUs vested	(692,994)	(711,419)
Nonvested RSUs, ending balance (in shares)	1,634,663	1,688,480
Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Nonvested RSUs at beginning of period (in dollars per share) | $ / shares	$ 1.45	$ 0.76
RSUs granted (in dollars per share) | $ / shares	3.24	1.52
RSUs forfeited (in dollars per share) | $ / shares	3.40	0.76
RSUs vested (in dollars per share) | $ / shares	1.89	0.76
Nonvested RSUs at end of period (in dollars per share) | $ / shares	$ 1.96	$ 1.45
Restricted Stock Units [Member] | Minimum [Member]
Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Requisite service period	1 year
Restricted Stock Units [Member] | Maximum [Member]
Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Requisite service period	5 years
Long Term Incentive Stock Option Plan 1995 [Member]
Share-based Payment Award [Line Items]
Plan Expiration	Apr. 21, 2026
Number of shares authorized (in shares)	7,500,000
Share-based compensation arrangement by share-based payment award, number of shares issued upon exercise of options (in shares)	3,198,146
Stock options remaining to be granted (in shares)	1,620,358
Share based compensation expense | $	$ 2,472,000	$ 1,550,000
Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, beginning balance (in shares)	1,556,833	2,222,333
Options granted (in shares)	0	40,000
Options exercised (in shares)	320,000	492,200
Options forfeited (in shares)	190,000	213,300
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Period Increase (Decrease), Total	(510,000)	(665,500)
Options outstanding, ending balance (in shares)	1,046,833	1,556,833
Options expected to vest (in shares)	24,000	72,000
Options and warrants exercisable, ending balance (in shares)	1,022,833	1,484,833
Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Options outstanding, beginning balance (in dollars per share) | $ / shares	$ 3.15	$ 3.01
Options granted (in dollars per share) | $ / shares	0	2.25
Options exercised (in dollars per share) | $ / shares	2.05	1.86
Options forfeited (in dollars per share) | $ / shares	4.01	4.77
Options outstanding, ending balance (in dollars per share) | $ / shares	3.33	3.15
Options expected to vest (in dollars per share) | $ / shares	1.90	1.87
Options exercisable (in dollars per share) | $ / shares	$ 3.36	$ 3.21
Share-based Payment Award, Options, Additional Disclosures [Abstract]
Options outstanding | $	$ 928,000	$ 1,573,000
Options expected to vest | $	33,000	117,000
Options exercisable | $	$ 895,000	$ 1,456,000
Options outstanding	1 year 3 months 11 days	2 years 18 days
Options expected to vest	4 years 8 months 19 days	5 years 5 months 12 days
Options exercisable	1 year 2 months 12 days	1 year 10 months 20 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Options granted (in shares)	0	40,000
Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested RSUs, ending balance (in shares)	1,634,663
Long Term Incentive Stock Option Plan 1995 [Member] | Installments One [Member]
Share-based Payment Award [Line Items]
Number of Installments | Installment	3
Long Term Incentive Stock Option Plan 1995 [Member] | Installments Two [Member]
Share-based Payment Award [Line Items]
Number of Installments | Installment	5
Long Term Incentive Stock Option Plan 1995 [Member] | Installments Three [Member]
Share-based Payment Award [Line Items]
Number of Installments | Installment	7
Long Term Incentive Stock Option Plan 1995 [Member] | Non-vested Share Activity [Member]
Share-based Payment Award, Options, Outstanding [Roll Forward]
Options granted (in shares)	0	40,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Nonvested options, beginning balance (in shares)	72,000	218,522
Options granted (in shares)	0	40,000
Options forfeited	0	(32,300)
Options vested during the period	(48,000)	(154,222)
Nonvested options, ending balance (in shares)	24,000	72,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Nonvested, Weighted average exercise price, shares under option and warrant, beginning balance (in dollars per share) | $ / shares	$ 0.97	$ 0.89
Nonvested, Weighted average exercise price, options granted (in dollars per share) | $ / shares	0	1.15
Nonvested, Weighted average exercise price, options forfeited (in dollars per share) | $ / shares	0	0.91
Nonvested, Weighted average exercise price, options vested (in dollars per share) | $ / shares	0.97	0.92
Nonvested, Weighted average exercise price, shares under option and warrant, ending balance (in dollars per share) | $ / shares	$ 0.97	$ 0.97
Long Term Incentive Stock Option Plan 1995 [Member] | Minimum [Member]
Share-based Payment Award [Line Items]
Term expiration for option to purchase shares	7 years
Long Term Incentive Stock Option Plan 1995 [Member] | Maximum [Member]
Share-based Payment Award [Line Items]
Term expiration for option to purchase shares	10 years

Commitments and Contingencies61

Commitments and Contingencies (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)LetterContract	Dec. 31, 2016USD ($)
Operating Leases, Future Minimum Payments Due [Abstract]
2,017	$ 1,506
2,018	793
2,019	702
2,020	716
2,021	709
Thereafter	541
Total	4,967
Rent Expense [Abstract]
Rent expense	800	$ 800
Standby Letters of Credit, Bank Guarantees, Surety Bonds and Performance Bonds [Abstract]
Standby letters of credit and surety bonds	$ 900
Number of standby letters of credit | Letter	3
Number of LOCs with BB&T | Contract	3
Outstanding LOC balance with Citizen Bank	$ 800

Employee Benefits (Details)

Employee Benefits (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Employee Benefits [Abstract]
Company's contribution to the plan	$ 305,000	$ 207,000

Segment Information, Reconcilia

Segment Information, Reconciliation of Assets from Segment to Consolidated (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)Segment	Dec. 31, 2016USD ($)
Segment Information [Abstract]
Number of reportable business segments | Segment	2
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 56,855	$ 53,656
Minimum [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Contract term	0 months
Maximum [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Contract term	2 years
Performance Improvement Solutions [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 34,107	42,383
Nuclear Industry Training and Consulting [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	22,748	11,249
Intersegment Eliminations [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 0	$ 24

Segment Information, Loss befor

Segment Information, Loss before income taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information, Profit (Loss) [Abstract]
Revenues	$ 70,880	$ 53,101
Operating (loss) income	229	1,575
Change in fair value of contingent consideration, net	446	(207)
Interest income, net	80	85
Loss on derivative instruments, net	99	(18)
Other income (expense), net	(4)	130
Income (loss) before income taxes	404	1,772
Performance Improvement Solutions [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Revenues	39,899	35,474
Operating (loss) income	(2,745)	(856)
Nuclear Industry Training and Consulting [Member]
Segment Reporting Information, Profit (Loss) [Abstract]
Revenues	30,981	17,627
Operating (loss) income	$ 3,420	$ 2,224

Segment Information, Geographic

Segment Information, Geographic Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Segment Information [Abstract]
Percentage of revenues derived from customers in the nuclear power industry	83.00%	73.00%
Segment Reporting Information [Line Items]
Total revenue	$ 70,880	$ 53,101
Operating loss	229	1,575
Assets	$ 56,855	$ 53,656
Percentage of revenues derived from international sales	16.00%	33.00%
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total revenue	$ 0	$ 0
Performance Improvement Solutions [Member]
Segment Reporting Information [Line Items]
Total revenue	39,899	35,474
Operating loss	(2,745)	(856)
Assets	34,107	42,383
Nuclear Industry Training and Consulting [Member]
Segment Reporting Information [Line Items]
Total revenue	30,981	17,627
Operating loss	3,420	2,224
Assets	22,748	11,249
United States [Member]
Segment Reporting Information [Line Items]
Total revenue	68,202	48,788
Operating loss	1,930	2,921
Assets	149,390	121,728
United States [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	66,249	46,149
United States [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total revenue	1,953	2,639
Europe [Member]
Segment Reporting Information [Line Items]
Total revenue	3,196	4,165
Operating loss	(1,585)	(896)
Assets	5,057	4,859
Europe [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	3,196	4,143
Europe [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total revenue	0	22
Asia [Member]
Segment Reporting Information [Line Items]
Total revenue	2,103	3,948
Operating loss	(116)	(450)
Assets	4,313	4,064
Asia [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	1,435	2,809
Asia [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total revenue	668	1,139
Geography Eliminations [Member]
Segment Reporting Information [Line Items]
Total revenue	(2,621)	(3,800)
Operating loss	0	0
Assets	(101,905)	(76,995)
Geography Eliminations [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	0	0
Geography Eliminations [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total revenue	(2,621)	$ (3,800)
UK [Member]
Segment Reporting Information [Line Items]
Total revenue	1,600
Sweden [Member]
Segment Reporting Information [Line Items]
Total revenue	$ 1,600

Supplemental Disclosure of Ca66

Supplemental Disclosure of Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Cash paid: [Abstract]
Interest	$ 0	$ 13
Income taxes	$ 155	$ 370