DHI (DHX) 10-K 8 Feb 19 2018 Q4 Annual report Financial data

DOCUMENT AND ENTITY INFORMATION

DOCUMENT AND ENTITY INFORMATION - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Feb. 01, 2019	Jun. 30, 2018
Entity Information [Line Items]
Entity Registrant Name	DHI GROUP, INC.
Entity Central Index Key	1,393,883
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q4
Amendment Flag	false
Entity Common Stock, Shares Outstanding		53,193,270
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 124

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current assets
Cash	$ 6,472	$ 12,068
Accounts receivable, net of allowance for doubtful accounts of $647 and $1,688	22,850	38,769
Income taxes receivable	2,203	2,617
Prepaid and other current assets	7,330	5,086
Total current assets	38,855	58,540
Fixed assets, net	15,890	16,147
Acquired intangible assets, net	39,000	45,737
Capitalized Contract Cost, Net	7,939	0
Goodwill	153,974	170,791
Deferred income taxes	136	469
Other assets	2,591	4,034
Total assets	258,385	295,718
Current liabilities
Accounts payable and accrued expenses	25,030	22,196
Deferred Revenue	54,723	83,646
Income taxes payable	1,168	1,129
Total current liabilities	80,921	106,971
Long-term debt, net	17,288	41,450
Deferred income taxes	10,444	8,245
Deferred Revenue, Noncurrent	1,363	0
Long-term income taxes payable	0	1,489
Accrual for unrecognized tax benefits	1,680	2,859
Other long-term liabilities	1,334	2,063
Total liabilities	113,030	163,077
Commitments and contingencies (Note 9)
Stockholders' equity
Convertible preferred stock, $.01 par value, authorized 20,000 shares; no shares issued and outstanding	0	0
Common stock, $.01 par value, authorized 240,000; issued 87,522 and 83,125 shares, respectively; outstanding: 53,422 and 50,480 shares, respectively	876	831
Additional paid-in capital	383,123	375,537
Accumulated other comprehensive loss	(31,236)	(27,330)
Accumulated earnings	71,435	59,776
Treasury stock, 34,101 and 32,645 shares, respectively	(278,843)	(276,173)
Total stockholders’ equity	145,355	132,641
Total liabilities and stockholders’ equity	$ 258,385	$ 295,718

CONSOLIDATED BALANCE SHEETS (PA

CONSOLIDATED BALANCE SHEETS (PARENTHETICAL) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	20,000,000	20,000,000
Preferred Stock, Shares Outstanding	0	0
Current assets
Allowance for doubtful accounts	$ 647	$ 1,688
Stockholders' equity
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	240,000,000	240,000,000
Common stock, shares issued	87,522,000	83,125,000
Common stock, shares outstanding	53,422,000	50,480,000
Treasury stock, shares	34,100,000	32,645,000

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues	$ 161,570	$ 207,950	$ 226,970
Operating expenses:
Cost of revenues	18,344	29,974	32,126
Product development	20,212	24,984	25,714
Sales and marketing	59,721	80,508	77,451
General and administrative	37,589	40,749	43,684
Depreciation	9,280	9,752	9,849
Other Depreciation and Amortization	9,280	9,752	9,849
Amortization of intangible assets	482	2,138	6,787
Impairment of goodwill	0	0	15,369
Impairment of intangible assets	0	2,226	9,252
Disposition related and other costs (Note 12)	7,619	4,746	3,347
Total operating expenses	153,247	195,077	223,579
Gain (Loss) on Disposition of Business	3,369	6,699	0
Gain (Loss) From Litigation Settlement, Restitution Award	0	3,293	0
Total other operating income	3,369	9,992	0
Operating income (loss)	11,692	22,865	3,391
Interest expense	(2,054)	(3,445)	(3,481)
Other expense	(36)	(23)	(29)
Income (loss) before income taxes	9,602	19,397	(119)
Income tax expense	2,428	3,419	5,279
Net income (loss)	$ 7,174	$ 15,978	$ (5,398)
Basic earnings (loss) per share (in dollars per share)	$ 0.15	$ 0.33	$ (0.11)
Diluted earnings (loss) per share (in dollars per share)	$ 0.14	$ 0.33	$ (0.11)
Weighted average basic shares outstanding	48,520	47,908	48,319
Weighted average diluted shares outstanding	49,605	48,230	48,319

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net income (loss)	$ 7,174	$ 15,978	$ (5,398)
Foreign currency translation adjustment		4,946	(11,808)
Total other comprehensive loss	(3,906)	4,946	(11,808)
Comprehensive income (loss)	$ 3,268	$ 20,924	$ (17,206)

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY Statement - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Distributions in Excess of Net Income [Member]	Treasury Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]
Common stock, shares outstanding		80,717,000
Net income (loss)	$ (5,398)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2015	138,613	$ 807	$ 352,208		$ (243,410)	$ 49,476	$ (20,468)
Net income (loss)	(5,398)					(5,398)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(11,808)
Other comprehensive loss	(11,808)						(11,808)
Stock based compensation	11,145		11,145
Excess tax benefit over book expense from stock options exercised	94		94
Restricted stock issued		1,302,000
Restricted stock issued	13	$ 13
Restricted stock forfeited or withheld to satisfy tax obligations		(328,000)
Restricted stock forfeited or withheld to satisfy tax obligations	(2,364)	$ (3)			(2,361)
Purchase of treasury stock under stock repurchase plan	$ (28,709)				(28,709)
Exercise of common stock options	641,710	642,000
Exercise of common stock options	$ 2,806	$ 6	2,800
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period		(98,000)
Performance-Based Restricted Stock Units forfeited or withheld to satisfy tax obligations	(507)	$ (1)			(506)
Performance-Based Restricted Stock Units eligible to vest	(2)	$ (2)
Performance-Based Restricted Stock Units eligible to vest (in shares)		(246,000)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2016	103,883	$ 820	366,247		(274,986)	44,078	(32,276)
Common stock, shares outstanding		81,989,000
Net income (loss)	15,978
Net income (loss)	15,978					15,978
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	4,946
Other comprehensive loss	4,946						4,946
Stock based compensation	8,608		8,608
Restricted stock issued		1,725,000
Restricted stock issued	17	$ 17
Restricted stock forfeited or withheld to satisfy tax obligations		(655,000)
Restricted stock forfeited or withheld to satisfy tax obligations	$ (1,194)	$ (7)			(1,187)
Exercise of common stock options	66,188	66,000
Exercise of common stock options	$ 403	$ 1	402
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income	0		280			(280)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2017	$ 132,641	$ 831	375,537		(276,173)	59,776	(27,330)
Common stock, shares outstanding	50,480,000	83,125,000
Net income (loss)	$ 7,174
Net income (loss)	7,174
Other comprehensive loss	(3,906)
Stock based compensation	6,606		6,606
Restricted stock issued		4,087,000
Restricted stock issued	41	$ 41
Restricted stock forfeited or withheld to satisfy tax obligations		(440,000)
Restricted stock forfeited or withheld to satisfy tax obligations	(697)	$ (4)			(693)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period		750,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	$ 8	$ 8
Exercise of common stock options	0
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income	$ 4,485					4,485
Net Income (Loss) from Discontinued Operations Available to Common Shareholders, Diluted	980		980
Accelerated Share Repurchase Program, Adjustment	(1,977)				(1,977)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2018	$ 145,355	$ 876	$ 383,123		$ (278,843)	$ 71,435	$ (31,236)
Common stock, shares outstanding	53,422,000	87,522,000

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net income (loss)	$ 7,174	$ 15,978	$ (5,398)
Adjustments to reconcile net income (loss) to net cash flows from operating activities:
Depreciation	9,280	9,752	9,849
Amortization of intangible assets	482	2,138	6,787
Deferred income taxes	2,699	212	(3,268)
Amortization of deferred financing costs	342	690	324
Stock based compensation	6,606	8,608	11,145
Impairment of goodwill	0	0	15,369
Impairment of fixed and intangible assets	0	2,226	9,252
Change in accrual for unrecognized tax benefits	(1,179)	346	(923)
Gain (Loss) on Disposition of Business	3,369	6,699	0
Gain (Loss) on Disposition Cost From Sale	3,369	6,699	(639)
Changes in operating assets and liabilities, net of the effects of acquisitions:
Accounts receivable	11,947	1,976	2,281
Prepaid expense and other assets	1,759	(1,120)	(132)
Increase (Decrease) in Contract with Customer, Asset	(3,236)	0	0
Accounts payable and accrued expenses	1,743	1,659	(2,954)
Income taxes receivable/payable	(972)	(2,111)	(64)
Deferred revenue	(18,866)	712	2,370
Other, net	508	42	(280)
Net cash flows from operating activities	14,918	34,409	44,997
Cash flows from investing activities:
Cash received from sale of business	17,542	12,947	2,429
Purchases of fixed assets	(10,053)	(13,222)	(11,699)
Purchases of cost method investments	0	(500)	(1,500)
Net cash flows from investing activities	7,489	(775)	(10,770)
Cash flows from financing activities:
Payments on long-term debt	(31,000)	(44,000)	(42,000)
Proceeds from long-term debt	7,000	0	27,000
Payments under stock repurchase plan	(1,977)	0	(29,572)
Proceeds from stock option exercises	0	403	2,806
Purchase of treasury stock related to vested restricted stock	(693)	(1,184)	(2,868)
Financing costs paid	(504)	0	0
Net cash flows from financing activities	(27,174)	(44,781)	(44,634)
Effect of exchange rate changes	(829)	228	(656)
Net change in cash and cash equivalents for the period	(5,596)	(10,919)	(11,063)
Cash, beginning of period	12,068	22,987	34,050
Cash, end of period	$ 6,472	$ 12,068	$ 22,987

ORGANIZATION AND PRINCIPAL ACTI

ORGANIZATION AND PRINCIPAL ACTIVITIES (Notes)	12 Months Ended
	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	ORGANIZATION AND PRINCIPAL ACTIVITIES DHI Group, Inc. (“DHI” or the “Company”), a Delaware corporation, was incorporated on June 28, 2005. DHI is a leading provider of data, insights and employment connections through its specialized services for technology professionals and other select online communities. Its mission is to empower tech professionals and organizations to compete and win through expert insights and relevant employment connections. Employers and recruiters use its websites and services to source, hire and connect with the most qualified and highly-skilled tech professionals, while professionals use its websites and services to find ideal employment opportunities, relevant job advice and tailored career-related data. For over 25 years, through its predecessor companies, the Company was built on providing employers and professionals with career connections, news, tools and information. The Company serves multiple markets located throughout North America, Europe, the Middle East and the Asia Pacific region.

SIGNIFCANT ACCOUNTING POLICIES

SIGNIFCANT ACCOUNTING POLICIES (Notes)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]	SIGNIFICANT ACCOUNTING POLICIES Principles of Consolidation — The consolidated financial statements include the accounts of DHI and its wholly-owned subsidiaries and cost method investment. All intercompany balances and transactions have been eliminated in consolidation. Revenue Recognition — On January 1, 2018, we adopted Topic 606 applying the modified retrospective method to all contracts that were not completed as of January 1, 2018. Results for periods beginning after January 1, 2018 are presented under Topic 606, while prior periods are reported under the accounting standards in effect for the period presented. Under Topic 606, we recognize revenue when control of the promised goods or services is transferred to our customers at an amount that reflects the consideration to which we expect to receive in exchange for those goods or services. Revenue is recognized net of customer discounts ratably over the service period. Billings with customers are based on contractual schedules. Customer billings delivered in advance and payments received in advance of services being rendered are recorded as deferred revenue and recognized over the service period. We generate revenues from the following sources: Recruitment packages. Recruitment package revenues are derived from the sale to recruiters and employers of a combination of job postings and access to a searchable database of candidates on the Dice, ClearanceJobs, eFinancialCareers and Rigzone (sold the RigLogix portion of the Rigzone business on February 20, 2018 and DHI transferred majority ownership of the remaining Rigzone business to Rigzone management on August 31, 2018). Certain of the Company’s arrangements include multiple performance obligations, which primarily consists of the ability to post jobs and access to a searchable database of candidates. The Company determines the units of accounting for multiple performance obligations in accordance with Topic 606. Specifically, the Company considers a performance obligation as a separate unit of accounting if it has value to the customer on a standalone basis. The Company’s arrangements do not include a general right of return. Services to customers buying a package of available job postings and access to the database are delivered over the same period and revenue is recognized ratably over the length of the underlying contract, typically from one to twelve months. The separation of the package into two deliverables results in no change in revenue recognition since delivery of the two services occurs over the same time period. Advertising revenue. Advertising revenue is recognized over the period in which the advertisements are displayed on the websites or at the time a promotional e-mail is sent out to the audience. Classified revenue. Classified job posting revenues are derived from the sale of job postings to recruiters and employers. A job posting is the ability to list a job on the website for a specified time period. Revenue from the sale of classified job postings is recognized ratably over the length of the contract or the period of actual usage. Data services revenue. Access to the Company’s database of energy industry data is provided to customers for a fee. Data services revenue is recognized ratably over the length of the underlying contract, typically from one to twelve months. The data services business, called RigLogix, was sold on February 20, 2018. Career fair and recruitment event booth rentals. Career fair and recruitment event revenues are derived from renting booth space to recruiters and employers. Revenue from these sales are recognized when the career fair or recruitment event is held. Concentration of Credit Risk— Cash is maintained with several financial institutions. Deposits held with banks may exceed the amount of insurance provided on such deposits. These deposits may be redeemed upon demand. The Company believes it is not exposed to any significant credit risk. The Company performs ongoing credit evaluations of its customers’ financial condition and generally does not require collateral on accounts receivable. No single customer represents 10% or more of revenues for the years ended December 31, 2018, 2017 and 2016. Allowance for Doubtful Accounts— The Company maintains allowances for doubtful accounts for estimated losses resulting from the inability of its customers to make required payments. If the financial condition of DHI’s customers were to deteriorate, resulting in an impairment of their ability to make payments, additional allowances may be required. Statements of Cash Flows— All bank deposits are considered cash. The supplemental disclosures to the accompanying consolidated statements of cash flows are as follows (in thousands): 2018 2017 2016 Supplemental cash flow information: Interest paid $ 1,807 $ 3,254 $ 3,256 Taxes paid 2,634 4,697 9,096 Non-cash investing and financing activities: Capital expenditures on fixed assets included in accounts payable and accrued expenses 223 63 201 Investments— During 2017, pursuant to the achievement of certain performance milestones, the Company purchased additional preferred stock representing a 2.3% interest in the fully diluted shares of a leading tech skills assessment company for $0.5 million , bringing its total interest to 10.0% . During the year ended December 31, 2018, the skills assessment company completed an additional equity offering, lowering DHI's total interest to 7.6% . As of December 31, 2018, it was not practicable to estimate the fair value of the preferred stock as the shares are not traded. The investment is carried at its original cost of $2.0 million , which is included in the other asset section of the consolidated balance sheets. On January 31, 2018, the Company transferred a majority ownership of the BioSpace business to BioSpace management with zero proceeds received from the transfer. The Company retained a 20% preferred share interest in the BioSpace business. The fair value of the investment was estimated to be zero at the time of the transfer. As of December 31, 2018, it was not practicable to estimate the fair value of the preferred stock investment as the shares are not traded. The investment is recorded at cost, which is zero. Upon a liquidation, sale or change in control of BioSpace within five years of January 31, 2018, the Company has the right to the first $1.0 million of proceeds or the option to convert its 20% preferred stock interest to a 20% common stock interest. On January 31, 2023, the 20% preferred share interest will convert to a 20% common share interest. On August 31, 2018, the Company transferred a majority ownership of the Rigzone business to Rigzone management, while retaining a 40% common share interest, with zero proceeds received from the transfer. The Company has agreed to provide $0.4 million of funding to the Rigzone business, which is recorded in accounts payable and accrued expenses on the consolidated balance sheets as of December 31, 2018. The Company has no further funding requirements to the Rigzone business. The Company has evaluated the 40% common share investment in the Rigzone business and has determined the investment meets the definition and criteria of a variable interest entity ("VIE"). The Company evaluated the VIE and determined that the Company does not have a controlling financial interest in the VIE, as the Company does not have the power to direct the activities of the VIE that most significantly impact the VIE's economic performance. The common share interest is being accounted for under the equity method of accounting as the Company has the ability to exercise significant influence over Rigzone. As accumulated earnings of the VIE have been approximately zero since the date of transfer, the investment continues to be recorded at cost, which was zero at December 31, 2018. Rigzone is a website dedicated to delivering online content, data , and career services in the oil and gas industry in North America, Europe, the Middle East, and Asia Pacific. Oil and gas companies, as well as companies that serve the energy industry, use Rigzone to find talent for roles such as petroleum engineers, sales, professionals with energy industry expertise and skilled tradesmen. Fixed Assets— Depreciation of equipment, furniture and fixtures, computer software and capitalized website development costs are provided under the straight-line method over estimated useful lives ranging from two to five years. Amortization of leasehold improvements is provided over the shorter of the term of the related lease or the estimated useful life of the improvement. The cost of additions and betterments is capitalized, and repairs and maintenance costs are charged to operations in the periods incurred. Capitalized Software Costs— Capitalized software costs consist of costs to purchase and develop software for internal use. The Company capitalizes certain incurred software development costs in accordance with the Internal Use Software subtopic of the FASB ASC. Costs incurred during the application-development stage for software bought and further customized by outside vendors for the Company’s use and software developed by a vendor for the Company’s proprietary use have been capitalized. Website Development Costs— The Company capitalizes certain costs incurred in designing, developing, testing and implementing enhancements to its websites. These costs are amortized over the enhancement’s estimated useful life, which generally approximates two years. Costs related to the planning and post implementation phases of website development efforts are expensed as incurred. Goodwill and Indefinite-Lived Acquired Intangible Assets— Goodwill is recorded when the purchase price paid for an acquisition exceeds the estimated fair value of the net identified tangible and intangible assets acquired. The indefinite-lived acquired intangible assets include the Dice trademarks and brand name. The Company performs a test for impairment of goodwill and indefinite-lived intangible assets annually on October 1, or more frequently if indicators of potential impairment exist, to determine if the carrying value of the recorded asset is impaired. The impairment review process for goodwill compares the fair value of the reporting unit in which goodwill resides to its carrying value. The impairment review process for indefinite-lived intangible assets compares the fair value of the assets to their carrying value. The determination of whether or not the asset has become impaired involves a significant level of judgment in the assumptions underlying the approach used to determine the value of the Company’s reporting units or the intangible asset. Changes in the Company’s strategy and/or market conditions could significantly impact these judgments and require adjustments to recorded amounts of goodwill or indefinite-lived intangible assets. See Note 5 for discussion of impairment charges. Capitalized Contract Costs— The Company capitalizes certain contract acquisition costs consisting primarily of commissions paid when contracts are signed. For costs incurred to obtain new business sales contracts, the Company capitalizes and expenses these costs over an average customer life, which was approximately two years as of December 31, 2018. For the remaining sales contracts, the Company capitalizes and expenses these costs over a weighted average contract term, which was approximately one year as of December 31, 2018. See Note 3 for additional contract acquisition cost disclosures. Foreign Currency Translation— For the Company’s foreign operations whose functional currency is not the U.S. dollar, the assets and liabilities are translated into U.S. dollars at current exchange rates. Resulting translation adjustments are reflected as Other Comprehensive Income (Loss). Revenue and expenses are translated at average exchange rates for the period. Transaction gains and losses that arise from exchange rate fluctuations on transactions denominated in a currency other than the functional currency are charged to operations as incurred. Advertising Costs— The Company expenses advertising costs as they are incurred. Advertising expense for the years ended December 31, 2018, 2017 and 2016 was $26.7 million , $35.3 million and $30.5 million , respectively. Income Taxes— The Company recognizes deferred taxes by the asset and liability method. Under this method, deferred income taxes are recognized for differences between the financial statement and tax bases of assets and liabilities at enacted statutory tax rates in effect for the years 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. The primary sources of temporary differences are stock-based compensation, amortization and impairment of intangible assets, and depreciation of fixed assets. Stock-Based Compensation— The Company has a plan to grant equity awards to certain employees and directors of the Company and its subsidiaries. See Note 13. Fair Value of Financial Instruments— The carrying amounts reported in the consolidated balance sheets for cash, accounts receivable, and accounts payable and accrued expenses approximate their fair values. The Company’s long-term debt consists of borrowings under its credit facility. See Note 5 for fair value disclosures. Risks and Uncertainties— The Company is subject to the risks, expenses and uncertainties frequently encountered by companies in the rapidly evolving markets for online products and services. These risks include the failure to develop and extend the Company’s online service brands, the rejection of the Company’s services by consumers, vendors and/or advertisers, the inability of the Company to maintain and increase the levels of traffic on its online services, as well as other risks and uncertainties. In the event that the Company does not successfully execute its business plan, certain assets may not be recoverable. Use of Estimates— The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities as of the date of the financial statements, and reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. DHI’s significant estimates include the useful lives and valuation of fixed assets and intangible assets, goodwill, the income tax valuation allowance, and the assumptions used to value the Performance-Based Restricted Stock Units (“PSUs”) of the Company. Earnings (Loss) per Share— The Company follows the Earnings Per Share topic of the FASB ASC in computing earnings per share (“EPS”). Basic EPS is calculated by dividing net income (loss) by the weighted average number of shares outstanding. When the effects are dilutive, diluted earnings (loss) per share is calculated using the weighted average number of shares outstanding, and the dilutive effect of stock-based compensation awards as determined under the treasury stock method. Certain stock awards were excluded from the computation of diluted (loss) earnings per share due to their anti-dilutive effect. See Note 17. New Accounting Pronouncements— In May 2014, FASB issued ASU No. 2014-09 ("Topic 606"), Revenue from Contracts with Customers. Topic 606 supersedes the revenue recognition requirements in Accounting Standards Codification Topic 605, Revenue Recognition, and requires entities to measure and recognize revenue and the related cash flows it expects to be entitled for the transfer of promised goods or services to customers and requires an entity to recognize the incremental costs of obtaining a contract with a customer as an asset if the entity expects to recover those costs over time. Topic 606 became effective for reporting periods beginning after December 15, 2017. Topic 606 provides companies with two implementation methods. Companies can choose to apply the standard retrospectively to each prior reporting period presented (full retrospective application) or retrospectively with the cumulative effect of initially applying the standard as an adjustment to the opening balance of retained earnings of the annual reporting period that includes the date of initial application (modified retrospective application). The Company has chosen the modified retrospective application method and has implement Topic 606 effective January 1, 2018. The Company has determined that the January 1, 2018 cumulative effect to its revenue streams was an increase of approximately $0.2 million to deferred revenues, and the cumulative effect to its contract acquisition costs was an increase to contract acquisition cost assets of approximately $6.1 million , with a net after tax increase to retained earnings of approximately $4.5 million . The cumulative impact on contract acquisition costs was computed based on contracts in force as of December 31, 2017 using average commission rates on both new business sales to be amortized over approximately two years and the remaining sales contracts to be amortized over approximately one year. See Note 3 to the Notes to the Consolidated Financial Statements. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. The new standard aims to improve existing U.S. GAAP and will change certain aspects of accounting for equity investments, financial instruments, financial liabilities, and presentation and related disclosures. The updated standard became effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The Company adopted the new standard in the first quarter of 2018, and has determined the adoption did not have material impact on its consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases . The new standard has requirements on how to account for leases by both the lessee and the lessor and adds clarification for what constitutes a lease, among other items. The updated standard becomes effective for fiscal years beginning after December 15, 2018 and interim periods the following year, with early adoption permitted. The new standard must be applied using a modified retrospective transition. In July 2018, the FASB issued updated guidance which allows an additional transition method to adopt the new standard at the adoption date, as compared to the beginning of the earliest period presented, and recognize a cumulative-effect adjustment to the beginning balance of retained earnings in the period of adoption. DHI has implemented the new standard effective January 1, 2019 and has elected to recognize a cumulative effect adjustment to the beginning balance of retained earnings in the period of adoption. Adoption of this standard has resulted in a right-of-use asset of approximately $16 to $18 million and a related lease liability of approximately $17 to $19 million being established on the Company's balance sheet, with no material cumulative-effect adjustment to retained earnings. The Company has implemented processes and tools to assist in the ongoing lease data collection and analysis, and has updated accounting policies and internal controls as a result of adopting this standard. In March 2016, the FASB issued ASU No. 2016-09, Improvements to Employee Share-Based Payment Accounting . The Company adopted the standard during the three months ended March 31, 2017. The new standard requires all income tax effects of awards to be recognized in the income statement when the awards vest or are settled, rather than in additional paid-in capital. Accordingly, the new standard eliminates the requirement to reclassify excess tax benefits from operating activities to financing activities in the statement of cash flows. Additionally, the Company can now make a policy election to account for forfeitures as they occur. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement were applied prospectively. The tax effect of awards vested resulted in income tax expense of $1.4 million during the twelve months ended December 31, 2017. The Company recast 2016 cash flows to reflect the excess tax benefit as an operating activity, resulting in a reclassification of $0.4 million from “Excess tax benefit over book expense from stock based compensation” to “Income taxes receivable/payable” on the Consolidated Statements of Cash Flows. The Company will record forfeitures as they occur, rather than estimating in advance. On January 1, 2017, under the modified retrospective transition method as required by the standard, the Company recorded a cumulative-effect adjustment of $0.3 million to decrease accumulated earnings and increase additional paid-in capital to remove estimated forfeitures on all outstanding equity awards after December 31, 2016. In January 2017, the FASB issued ASU No. 2017-04, Intangibles-Goodwill and Other . The new standard eliminates Step 2 from the goodwill impairment test and requires the Company to compare the fair value of a reporting unit with its carrying amount. The Company should recognize an impairment charge for the amount by which the carrying amount exceeds the fair value. The standard is effective for fiscal years beginning after December 15, 2019, with early adoption permitted. Accordingly, the Company has adopted the new standard during the year ended December 31, 2017, which did not have a material impact on the consolidated financial statements. In August 2018, the FASB issued ASU No. 2018-15, Intangibles-Goodwill and Other-Internal-Use Software: Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract. The new standard requires entities that are customers in cloud computing arrangements to defer implementation costs if they would be capitalized by the entity in software licensing arrangements under the internal-use software guidance. ASU No. 2018-15 is effective for fiscal years beginning after December 15, 2019 and interim periods within those years and early adoption is permitted. The amendments allow either a retrospective or prospective approach to all implementation costs incurred after adoption. The Company is evaluating the expected impact of this standard on its consolidated financial statements.

ASSETS HELD FOR SALE (Notes)

ASSETS HELD FOR SALE (Notes)	12 Months Ended
	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	SALE OF BUSINESSES The Company transferred a majority ownership of the Rigzone business to Rigzone management on August 31, 2018. The Company retained a 40% common share interest in Rigzone. The Company incurred approximately $0.4 million in selling costs and recognized a $0.7 million loss on sale during the year ended December 31, 2018. The Company sold the Hcareers business on May 22, 2018 for $16.5 million and incurred approximately $1.5 million in selling costs, with $1.7 million of the purchase price placed in escrow (recorded in prepaid and other current assets), to be released twelve months after the closing date, subject to the terms and conditions of the transaction agreement, including certain contingencies. Additionally, the Company recorded a receivable of $0.2 million (recorded in prepaid and other current assets) related to working capital to be released four months after the closing date, subject to the terms and conditions of the transaction agreement. As of December 31, 2018, working capital had not been finalized. Net cash proceeds of $14.0 million were received on the date of sale of Hcareers. As a result of the sale, a $0.8 million loss was recognized in the second quarter of 2018. The Company sold the RigLogix portion of the Rigzone business on February 20, 2018 for $4.2 million and incurred approximately $0.6 million in selling costs. $0.4 million of the purchase price was placed in escrow (recorded in prepaid and other current assets) and will be released twelve months after the closing date, subject to the terms and conditions of the transaction agreement. As a result of the sale, a $4.6 million gain was recognized in the first quarter of 2018. The gain on sale exceeded net proceeds as liabilities transferred in the transaction exceeded assets, primarily due to deferred revenues of $1.2 million . The Company transferred a majority ownership of the BioSpace business to BioSpace management on January 31, 2018. The Company retained a preferred share interest in BioSpace, Inc., representing a 20% diluted interest. The Company incurred approximately $0.3 million in selling costs and recognized a $0.5 million loss on sale during the year ended December 31, 2018. The Company sold the Health eCareers business on December 4, 2017 for $15.0 million and incurred approximately $0.6 million of selling costs. $1.5 million of the purchase price was placed in escrow (recorded in other current assets in the consolidated balance sheet) and will be released 18 months after the closing date, subject to the terms and conditions of the transaction agreement. Additionally, the Company recorded a receivable of $0.6 million (recorded in other current assets in the consolidated balance sheet) related to working capital, which was released during the first quarter of 2018. Net cash proceeds on the date of sale were $12.9 million . A $6.7 million gain on the sale of the business during the fourth quarter of 2017. The Company sold the Slashdot and SourceForge businesses (together referred to as “Slashdot Media”) on January 27, 2016 for $2.8 million cash plus working capital of $0.4 million and incurred approximately $0.8 million of selling costs. A $0.6 million loss on sale of business was recognized in the year ended December 31, 2016.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	12 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS The FASB ASC topic on Fair Value Measurements and Disclosures defines fair value, establishes a framework for measuring fair value and requires certain disclosures for each major asset and liability category measured at fair value on either a recurring or nonrecurring basis. As a basis for considering assumptions, a three-tier fair value hierarchy is used, which prioritizes the inputs used in measuring fair value as follows: • Level 1 – Quoted prices for identical instruments in active markets. • Level 2 – Quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-derived valuations, in which all significant inputs are observable in active markets. • Level 3 – Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions. The carrying amounts reported in the Consolidated Balance Sheets for cash, accounts receivable, other assets, accounts payable and accrued expenses and long-term debt approximate their fair values. The fair value of the long-term debt was estimated using present value techniques and market based interest rates and credit spreads. The estimated fair value of long-term debt is based on Level 2 inputs. Certain assets and liabilities are measured at fair value on a non-recurring basis. These assets include goodwill and intangible assets which result as acquisitions occur. Items valued using such internally generated valuation techniques are classified according to the lowest level input or value driver that is significant to the valuation. Thus, an item may be classified in Level 3 even though there may be some significant inputs that are readily observable. Such instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances, for example, when there is evidence of impairment. Impairment —The impairment review process for goodwill compares the fair value of the reporting unit in which the goodwill resides to the carrying value of that reporting unit. If the fair value of the reporting unit is less than the carrying value, an impairment charge is recorded for the excess of the carrying value over the fair value of the reporting unit. Fair values are determined either by using a discounted cash flow methodology or by using a combination of a discounted cash flow methodology and a market comparable method. The discounted cash flow methodology is based on projections of the amounts and timing of future revenues and cash flows, assumed discount rates and other assumptions as deemed appropriate. Factors such as historical performance, anticipated market conditions, operating expense trends and capital expenditure requirements are considered. Additionally, the discounted cash flows analysis takes into consideration cash expenditures for product development, other technological updates and advancements to the websites and investments to improve the candidate databases. The market comparable method indicates the fair value of a business by comparing it to publicly traded companies in similar lines of business or to comparable transactions or assets. Considerations for factors such as size, growth, profitability, risk and return on investment are analyzed and compared to the comparable businesses and adjustments are made. A market value of invested capital of the publicly traded companies is calculated and then applied to the entity’s operating results to arrive at an estimate of value. During the third quarter of 2016, goodwill at the Energy reporting unit with a carrying value of $15.4 million was tested for impairment due to the decline in demand for energy professionals, stemming from persistently depressed oil prices. The Company recorded an impairment of goodwill of $ 15.4 million as of September 30, 2016, bringing goodwill at the Energy reporting unit to zero. In order to arrive at the implied fair value of goodwill, the Company calculated the fair value of all the assets and liabilities of the reporting unit as if it had been acquired in a business combination. After assigning fair value to the assets and liabilities of the reporting unit, the implied fair value of goodwill resulted in an impairment of $ 15.4 million in the year ended December 31, 2016. The goodwill balance represented a Level 3 asset measured at fair value on a nonrecurring basis subsequent to its original recognition. The fair value of the assets and liabilities of the Energy reporting unit was determined by a combination of a discounted cash flow methodology and market comparable method. Cash flow projections for this reporting unit decreased due to a decline in financial performance resulting from persistently low oil prices. The charge is reflected as Impairment of Goodwill on the Consolidated Statements of Operations. As required under FASB ASC 360, Impairment or Disposal of Long-Lived Assets , an impairment loss shall be recognized only if the carrying amount of the long-lived asset is not recoverable and exceeds its fair value. During 2017, the Company performed an in-depth review of the getTalent product and the market outlook due to slow sales of the product and the high cost of development. Based on the review, the Company determined the required investments to competitively position the product were too high. As a result, the product offering was canceled. The long-lived assets of getTalent were tested for recoverability. This process resulted in an impairment of capitalized website development costs of $9.3 million , which was recorded in the third quarter of 2017 and reduced the net book value of assets related to getTalent to zero. During 2016, the long-lived assets of the Energy reporting unit were tested for recoverability due to the downturn in the current and expected future financial performance of the reporting unit and an impairment charge of unamortized intangible assets of $2.2 million was recorded, which reduced the unamortized intangible assets at the Energy reporting unit to zero. Both getTalent (discontinued in the third quarter of 2017) and Energy (sold RigLogix portion of the Rigzone business on February 20, 2018 and transferred majority ownership of the remaining business to Rigzone management on August 31, 2018) are included in Corporate & Other.

FIXED ASSETS (Notes)

FIXED ASSETS (Notes)	12 Months Ended
	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment Disclosure [Text Block]	FIXED ASSETS, NET Fixed assets, net consist of the following as of December 31, 2018 and 2017 (in thousands): 2018 2017 Computer equipment and software $ 8,954 $ 13,588 Furniture and fixtures 2,809 3,093 Leasehold improvements 2,890 3,199 Capitalized development costs 26,919 21,824 41,572 41,704 Less: Accumulated depreciation and amortization (25,682 ) (25,557 ) Fixed assets, net $ 15,890 $ 16,147

ACQUIRED INTANGIBLE ASSETS, NET

ACQUIRED INTANGIBLE ASSETS, NET	12 Months Ended
	Dec. 31, 2018
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Acquired Intangible Assets, Net	ACQUIRED INTANGIBLE ASSETS, NET As a result of the sale of Hcareers (sold May 22, 2018), the Company disposed of all its remaining unamortized acquired intangible assets. Acquired intangible assets disposed of in conjunction with the sale had costs of $12.9 million and accumulated amortization of $6.7 million . Therefore, as of December 31, 2018, the net value of all finite-lived acquired intangible assets was zero. As of December 31, 2018, the Company had an indefinite-lived acquired intangible asset of $39.0 million related to the Dice trademark and brand name. The Company evaluates the indefinite-lived acquired intangible asset for impairment on an annual basis. No impairment has been recorded during the twelve months ending December 31, 2018. Below is a summary of the major acquired intangible assets (in thousands) as of December 31, 2017: As of and for the year ended December 31, 2017 Total Cost Accumulated Amortization Foreign Currency Translation Adjustment Acquired Intangible Assets, Net Technology $ 4,561 $ (3,930 ) $ (631 ) $ — Trademarks and brand names—Dice 39,000 — — 39,000 Trademarks and brand names—Other 11,103 (7,260 ) (2,185 ) 1,658 Customer lists 12,887 (5,696 ) (2,112 ) 5,079 Candidate and content database 8,857 (8,354 ) (503 ) — Acquired intangible assets, net $ 76,408 $ (25,240 ) $ (5,431 ) $ 45,737 During the fourth quarter of 2017, the Company disposed of $4.6 million of fully amortized acquired intangible assets from the sale of Health eCareers (sold December 4, 2017). During the first quarter of 2017 and the second quarter of 2016, the Company retired $26.7 million and $44.1 million , respectively, of fully amortized acquired intangible assets. During the quarter ended September 30, 2016, the long-lived assets of the Energy reporting unit were tested for recoverability due to the downturn in the current and expected future financial performance of the reporting unit. The Company recorded an impairment of unamortized intangible assets of $9.3 million as of September 30, 2016. Indefinite Life on Trade Name Considering the recognition of the Dice brand, its long history, awareness in the talent acquisition and staffing services market, and the intended use, the remaining useful life of the Dice.com trademarks and brand name was determined to be indefinite. We determine whether the carrying value of recorded indefinite-lived acquired intangible assets is impaired on an annual basis or more frequently if indicators of potential impairment exist. The impairment review process compares the fair value of the indefinite-lived acquired intangible assets to its carrying value. If the carrying value exceeds the fair value, an impairment loss is recorded. The impairment test performed as of October 1, 2018 and 2017 resulted in the fair value of the Dice trademarks and brand name exceeding the carrying value by 2% and 4%, respectively. Revenue attributable to the Dice trademarks and brand name have declined during the year ended December 31, 2018 due to competition in the technology recruiting market, challenges in developing and introducing new products and product enhancements to the market and the Company’s ability to attribute value delivered to customers. Revenues related to the Dice trademarks and brand name declined 7% and 10% for the years ended December 31, 2018 and 2017, respectively, and declined 4% and 10% for the three months ended December 31, 2018 and 2017, respectively. The rate of revenue decline narrowed throughout 2018. Revenue projections for the year ended December 31, 2019 and beyond include a modest increase compared to the year ended December 31, 2018. The Company’s ability to achieve these revenue projections may be impacted by, among other things, the factors noted above that have contributed to the decline in recent periods. Cash flows attributable to the Dice trademarks and brand name declined during 2018 as a result of the lower revenue, as well as increased spending focused on new and enhanced products and consulting fees related to expense reduction strategies. Operating expenses, excluding amortization expense, impairment charges and disposition related and other costs, are projected to slightly decline for the year ended December 31, 2019 as compared to the year ended December 31, 2018 and then increase at levels that allow for modest operating margin improvements. If future cash flows attributable to the Dice trademark are not achieved, the Company could realize an impairment in a future period. The Company utilized a relief from royalty rate method to value the Dice trademarks and brand name using a royalty rate of 6.0% based on comparable industry studies and improving operating margins and a discount rate of 15.3%. The determination of whether or not indefinite-lived acquired intangible assets have become impaired involves a significant level of judgment in the assumptions underlying the approach used to determine the value of the indefinite-lived acquired intangible assets. Fair values are determined using a profit allocation methodology which estimates the value of the trademark and brand name by capitalizing the profits saved because the company owns the asset. We consider factors such as historical performance, anticipated market conditions, operating expense trends and capital expenditure requirements. Changes in our strategy and/or market conditions could significantly impact these judgments and require adjustments to recorded amounts of intangible assets. If projections are not achieved, the Company could realize an impairment in a future period.

INDEBTEDNESS

INDEBTEDNESS	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Indebtedness	INDEBTEDNESS Credit Agreement —In November 2018, the Company, together with Dice Inc. (a wholly-owned subsidiary of the Company) and its wholly-owned subsidiary, Dice Career Solutions, Inc. (collectively, the “Borrowers”), entered into a Second Amended and Restated Credit Agreement (the “Credit Agreement”), which matures in November 2023, and replaces the previously existing credit agreement dated November 2015. The Credit Agreement provides for a revolving loan facility of $90 million (previously $150 million ), with an Expansion Option up to $140 million , as permitted in the Credit Agreement. The Company borrowed $18 million to repay, in full, all outstanding indebtedness, including accrued interest, under the previous credit agreement and to pay certain costs associated with the Credit Agreement. Unamortized debt issuance costs of $0.2 million were recorded to interest expense at the time of reduction. Borrowings under the Credit Agreement bear interest, at the Company’s option, at a LIBOR rate or a base rate plus a margin. The margin ranges from 1.75% to 2.50% on LIBOR loans and 0.75% to 1.50% on base rate loans, determined by the Company’s most recent consolidated leverage ratio. The facility may be prepaid at any time without penalty. The Credit Agreement contains various customary affirmative and negative covenants and also contains certain financial covenants, including a consolidated leverage ratio and a consolidated interest coverage ratio. Borrowings are allowed under the Credit Agreement to the extent the consolidated leverage ratio, calculated on a pro forma basis, is equal to or less than 2.50 to 1.00 . Negative covenants include restrictions on incurring certain liens; making certain payments, such as stock repurchases and dividend payments; making certain investments; making certain acquisitions; making certain dispositions; and incurring additional indebtedness. Restricted payments are allowed under the Credit Agreement to the extent the consolidated leverage ratio, calculated on a pro forma basis, is equal to or less than 2.00 to 1.00 , plus an additional $5.0 million of restricted payments. The Credit Agreement also provides that the payment of obligations may be accelerated upon the occurrence of customary events of default, including, but not limited to, non-payment, change of control, or insolvency. As of December 31, 2018 , the Company was in compliance with all of the financial covenants under the Credit Agreement. The obligations under the Credit Agreement are guaranteed by two of the Company’s wholly-owned subsidiaries, eFinancialCareers, Inc and Targeted Job Fairs, Inc. and secured by substantially all of the assets of the Borrowers and the guarantors and stock pledges from certain of the Company’s foreign subsidiaries. Previous Credit Agreement —The Borrowers previously maintained an Amended and Restated Credit Agreement (the “Old Credit Agreement”), which was scheduled to mature in November 2020. The Old Credit Agreement, when entered into during November 2015, provided for a revolving loan facility of $250.0 million , which was subsequently reduced to $150.0 million , during August 2017, as permitted under the Old Credit Agreement. Unamortized debt issuance costs of $0.4 million were recorded to interest expense at the time of reduction. Borrowings under the Old Credit Agreement accrued interest, at the Company’s option, at a LIBOR rate or a base rate plus a margin. The margin ranges from 1.75% to 2.50% on LIBOR loans and 0.75% to 1.50% on base rate loans, determined by the Company’s most recent consolidated leverage ratio. There was no penalty for prepayment of this facility. The amounts borrowed as of December 31, 2018 and 2017 are as follows (dollars in thousands): December 31, December 31, Amounts borrowed: Revolving credit facility $ 18,000 $ 42,000 Less: deferred financing costs, net of accumulated amortization of $25 and $1,529 (712 ) (550 ) Total borrowed $ 17,288 $ 41,450 Available to be borrowed under revolving facility $ 72,000 $ 108,000 Interest rates: LIBOR rate loans: Interest margin 1.75 % 2.25 % Actual interest rates 4.25 % 3.88 % There are no scheduled payments until maturity of the Credit Agreement in November 2023.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	12 Months Ended
	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Leases The Company leases equipment and office space under operating leases expiring at various dates through December 2026. Future minimum lease payments under non-cancellable operating leases as of December 31, 2018 are as follows (in thousands): 2019 $ 4,244 2020 3,710 2021 3,097 2022 2,540 2023 2,300 2024 and thereafter 4,524 Total minimum payments $ 20,415 Rent expense was $3.7 million , $4.9 million and $4.5 million for the years ended December 31, 2018 , 2017, and 2016, respectively, and is included in General and Administrative expense in the Consolidated Statements of Operations. Litigation The Company is subject to various claims from taxing authorities, lawsuits and other complaints arising in the ordinary course of business. The Company records provisions for losses when claims become probable and the amounts are reasonably estimable. Although the outcome of these legal matters cannot be determined, it is the opinion of management that the final resolution of these matters will not have a material adverse effect on the Company’s financial condition, operations or liquidity. During the first quarter of 2018, the Company recorded a $1.0 million liability related to a class action lawsuit regarding the applicability of provisions of the Fair Credit Reporting Act (the "FCRA") to one of our products. The recorded liability reflects a tentative settlement, which upon execution and final approval by the court, will resolve all remaining claims subject to the lawsuit. The lawsuit was brought by Ian Douglas, individually, as a representative of the class and on behalf of the general public, against DHI Group, Inc. and Dice Inc. asserting six claims under the FCRA that the Company's Open Web profiles are "consumer reports" and Dice is a "consumer reporting agency" under the FCRA, including claims pursuant to the private right of action in 15 U.S.C. Section 1681n for alleged willful violations of the FCRA. The action was originally filed in a federal district court on July 26, 2017, but as part of the settlement process, the action has been re-filed and is pending in the Superior Court of Santa Clara County, California (Case No. 18CV331732). The parties have moved for preliminary approval of the settlement, which the court is scheduled to hear in March 2019. Tax Contingencies The Company operates in a number of tax jurisdictions and is routinely subject to examinations by various tax authorities with respect to income taxes and indirect taxes. The determination of the Company’s worldwide provision for taxes requires judgment and estimation. The Company has reserved for potential examination adjustments to our provision for income taxes and accrual of indirect taxes in amounts which the Company believes are reasonable.

EQUITY TRANSACTIONS (Notes)

EQUITY TRANSACTIONS (Notes)	12 Months Ended
	Dec. 31, 2018
Equity, Class of Treasury Stock [Line Items]
Stockholders' Equity Note Disclosure [Text Block]	EQUITY TRANSACTIONS Stock Repurchase Plans — In May 2018, the Board of Directors authorized a stock repurchase program that permits the purchase of up to $7 million of the Company's common stock through May 2019. Under the plan, management has discretion in determining the conditions under which shares may be purchased from time to time. There were no stock repurchase plan in place during the year ended December 31, 2017. The following table summarizes the Stock Repurchase Plans approved by the Board of Directors: VI VII Approval Date December 2015 May 2018 Authorized Repurchase Amount of Common Stock $50 million $7 million Effective Dates December 2015 to December 2016 May 2018 to May 2019 During the years ended December 31, 2018 , 2017 and 2016 purchases of the Company’s common stock pursuant to Stock Repurchase Plans were as follows: Period Total Number of Shares Purchased Average Price Paid per Share Approximate Dollar Value of Shares Purchased Year Ended December 31, 2018 1,086,420 $ 1.82 $ 1,977,483 Year Ended December 31, 2017 — $ — $ — Year Ended December 31, 2016 3,946,396 $ 7.27 $ 28,709,000 There were 26,337 unsettled share repurchases, which are included above in the number of shares purchased as of December 31, 2018 . There were no unsettled shares repurchases as of December 31, 2017 and 2016. Convertible Preferred Stock— The Company has 20 million shares of convertible preferred stock authorized, with a $0.01 par value. No shares have been issued and outstanding since prior to our initial public offering in 2007. The rights, preferences, privileges and restrictions granted to and imposed on the convertible preferred stock are as set forth below. The Company currently has no preferred stock outstanding. The Company’s amended and restated certificate of incorporation permits the terms of any preferred stock to be determined at the time of issuance. Dividend provisions The preferred stockholders would be entitled to dividends only when dividends are paid to common shareholders. In the event of a dividend, the holders of the preferred shares would be entitled to share in the dividend on a pro rata basis, as if their shares had been converted into shares of common stock. Conversion rights Any holder of preferred stock has the right, at its option, to convert the preferred shares into shares of common stock at a ratio of one preferred stock share for one common stock share. The holders of 66 2 / 3 % of all outstanding preferred stock have the right at any time to require all the outstanding shares of preferred stock to be converted into an equal number of shares of common stock. Voting rights include the right to vote at a special or annual meeting of stockholders on all matters entitled to be voted on by holders of common stock, voting together as a single class with the common stock. There are no redemption rights associated with the preferred stock. Liquidation rights Upon the occurrence of liquidation, the holders of the preferred shares shall be paid in cash for each share of preferred stock held, out of, but only to the extent of, the assets of the Company legally available for distribution to its stockholders, before any payment or distribution is made to any shareholders of common stock . The liquidation value is $2.17 per share, subject to adjustments for stock splits, stock dividends, combinations, or other recapitalizations of the preferred stock. Dividends— No dividends have been declared in 2018, 2017 or 2016. Our Credit Agreement limits our ability to declare and pay dividends. Refer to Note 8 “Indebtedness.” Unclaimed Shareholder Liability— Prior to the third quarter of 2018, other long-term liabilities included $1.0 million due to former shareholders of the Company under a Joint Plan of Reorganization that was agreed to by the Company and two of its creditors, and confirmed by the U.S. Bankruptcy Court of the Southern District Court of New York on June 24, 2003. During the third quarter of 2018, the Company concluded the unclaimed amounts were no longer due and payable and further, such amounts represent additional equity of the Company. Accordingly, the Company reclassified $1.0 million from other long-term liabilities to additional paid-in capital during the third quarter of 2018.

COMPREHENSIVE INCOME (Notes)

COMPREHENSIVE INCOME (Notes)	12 Months Ended
	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Comprehensive Income (Loss) Note [Text Block]	ACCUMULATED OTHER COMPREHENSIVE LOSS FASB ASC topic on Comprehensive Income establishes standards for the reporting and display of comprehensive income (loss) and its components in a full set of general-purpose financial statements. This statement requires that all items that are required to be recognized as components of comprehensive income (loss) be reported in a financial statement with the same prominence as other financial statements. The Company had no amounts reclassified out of accumulated other comprehensive income for the years ended December 31, 2018, 2017, and 2016. The foreign currency translation adjustments impact comprehensive income (loss). Accumulated other comprehensive income (loss), net consists of the following components, net of tax (in thousands): Year Ended December 31, 2018 2017 2016 Foreign currency translation: Balance at beginning of year $ (27,330 ) $ (32,276 ) $ (20,468 ) Translation adjustments (3,906 ) 4,946 (11,808 ) Balance at end of year $ (31,236 ) $ (27,330 ) $ (32,276 )

DISPOSITION RELATED AND OTHER C

DISPOSITION RELATED AND OTHER COSTS (Notes)	12 Months Ended
	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Activities Disclosure [Text Block]	DISPOSITION RELATED AND OTHER COSTS In May 2017, the Company announced plans to divest a number of its online professional communities to achieve greater focus and resource allocation toward its core tech-focused business. The planned divestitures included: BioSpace (transferred majority ownership to BioSpace management on January 31, 2018), Hcareers (sold May 22, 2018), Health eCareers (sold December 4, 2017), and Rigzone (sold the RigLogix portion of the Rigzone business on February 22, 2018 and transferred majority ownership of the remaining Rigzone business to Rigzone management on August 31, 2018). In connection with the planned divestitures and reorganization to the tech-focused strategy, the Company incurred certain costs, including severance and retention, lease exit, business closure, professional fees related to activist shareholders, search, financial advisory, and legal services, and other costs to further these strategic objectives. The following table displays a roll forward of the disposition related and other costs and related liability balances (in thousands): Accrual at December 31, 2017 Expense Cash Payments Non-cash Impairment Accrual at December 31, 2018 Severance and retention $ 1,237 $ 3,191 $ (3,339 ) $ — $ 1,089 Professional fees and other costs 825 2,914 (2,468 ) — 1,271 Lease exit and related asset impairment costs — 1,514 (399 ) (168 ) 947 Total disposition related and other costs $ 2,062 $ 7,619 $ (6,206 ) $ (168 ) $ 3,307 Accrual at December 31, 2016 Expense Cash Payments Accrual at December 31, 2017 Severance and retention $ — $ 3,112 $ (1,875 ) $ 1,237 Professional fees — 1,634 (809 ) 825 Total disposition related and other costs $ — $ 4,746 $ (2,684 ) $ 2,062 In January 2016, the Company completed the sale of Slashdot Media and incurred severance costs and additional stock based compensation expense for the acceleration of stock vesting. The Company recognized a loss on the sale of assets of Slashdot Media. The following table displays the disposition related and other costs incurred during the year ended December 31, 2016 (in thousands): Severance — Slashdot Media $ 981 Accelerated stock based compensation expense — Slashdot Media 900 Loss on sale of Slashdot Media 639 Severance related to other brands 827 Total $ 3,347

STOCK BASED COMPENSATION

STOCK BASED COMPENSATION	12 Months Ended
	Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Based Compensation	STOCK BASED COMPENSATION Under the 2012 Omnibus Equity Award Plan, the Company has granted stock options, restricted stock and Performance-Based Restricted Stock Units (“PSUs”) to certain employees and directors. On January 1, 2017, as a result of ASU No. 2016-09 as discussed in Note 2, the Company began recording expense based upon the number of awards outstanding with no estimate for forfeitures. Previously, the Company estimated forfeitures that it expected would occur and recorded expense based upon the number of awards expected to vest. The Company recorded stock based compensation expense of $ 6.6 million and $ 8.6 million in the years ended December 31, 2018 and 2017, respectively. During the year ended December 31, 2016, the Company recorded $ 11.1 million , which included $0.9 million of accelerated compensation due to the sale of Slashdot Media as shown in Note 12. At December 31, 2018 , there was $8.8 million of unrecognized compensation expense related to unvested awards, which is expected to be recognized over a weighted-average period of approximately 1.4166666667 years. In connection with the employment agreement for the Company's new Chief Executive Officer, the Company granted, as Inducement Grants Under NYSE Rule 303A.08, 1,750,000 restricted stock units during the second quarter of 2018 and 750,000 performance based restricted stock units during the fourth quarter of 2018 to the Company's new Chief Executive Officer. Restricted Stock— Restricted stock is granted to employees of the Company and its subsidiaries, and to non-employee members of the Company’s Board. These shares are part of the compensation plan for services provided by the employees or Board members. The closing price of the Company’s stock on the date of grant is used to determine the fair value of the grants. The expense related to the restricted stock grants is recorded over the vesting period as described below. There was no cash flow impact resulting from the grants. The restricted stock vests in various increments either quarterly or on the anniversaries of each grant, subject to the recipient’s continued employment or service through each applicable vesting date. Vesting occurs over one year for Board members and over two to four years for employees. A summary of the status of restricted stock awards as of December 31, 2018 , 2017 , and 2016 and the changes during the periods then ended is presented below: Year Ended December 31, 2018 2017 2016 Shares Weighted- Average Fair Value at Grant Date Shares Weighted- Average Fair Value at Grant Date Shares Weighted- Average Fair Value at Grant Date Non-vested at beginning of the period 2,393,257 $ 5.48 2,226,375 $ 7.87 2,122,225 $ 8.54 Granted 4,087,342 $ 1.68 1,724,500 $ 4.05 1,302,375 $ 7.33 Forfeited (439,750 ) $ 4.20 (655,000 ) $ 6.54 (327,750 ) $ 8.17 Vested (1,521,917 ) $ 5.03 (902,618 ) $ 7.89 (870,475 ) $ 8.58 Non-vested at end of period 4,518,932 $ 2.32 2,393,257 $ 5.48 2,226,375 $ 7.87 PSUs— PSUs are granted to employees of the Company and its subsidiaries. These shares are granted under two compensation agreements that are for services provided by the employees. Under the first agreement, with grants during the years ended December 31, 2016 and 2017, the fair value of PSUs are measured using the Monte Carlo pricing model. The expense related to these PSUs are recorded over the vesting period. These shares will vest on the dates the Compensation Committee certifies the Company’s achievement of stock price performance relative to the Russell 2000 Index, provided that the recipient remains employed through such date. Performance will be measured over three separate measurement periods: a one-year measurement period, a two-year measurement period and a three-year measurement period. For performance periods one and two, vesting is not to exceed the total grant divided by three. For performance period three, vesting is no less than zero and no greater than 150% of the initial grant less shares vested in performance periods one and two. As of December 31, 2018, there were 505,000 unvested shares related to this agreement. Under the second agreement, the fair value of the PSUs are measured at the grant date fair value of the award, which was determined based on an analysis of the probable performance outcomes. The performance period is based on the achievement of bookings targets during the year ended December 31, 2019, as defined in the agreement. The earned shares will vest one-third on each of the first, second, and third anniversaries of the grant date, or if later, the date the Compensation Committee certifies the performance results with respect to the performance period. There was no cash flow impact resulting from the grants. The fair value of PSUs measured using the Monte Carlo pricing model utilized the following assumptions: Year Ended December 31, 2017 2016 Weighted average fair value of PSUs granted $ 5.38 $ 7.24 Dividend yield of DHI Group, Inc. stock — % — % Dividend yield of Russell 2000 Index 1.4 % 1.7 % Risk free interest rate 1.5 % 0.9 % Volatility of DHI Group, Inc. stock 41.0 % 33.5 % Volatility of Russell 2000 Index 16.7 % 16.7 % A summary of the status of PSUs as of December 31, 2018 , 2017, and 2016 and the changes during the periods then ended is presented below: Year Ended December 31, 2018 2017 2016 Shares Weighted- Average Fair Value at Grant Date Shares Weighted- Average Fair Value at Grant Date Shares Weighted- Average Fair Value at Grant Date Non-vested at beginning of the period 760,003 $ 6.92 580,004 $ 8.02 415,000 $ 9.25 Granted 750,000 $ 1.58 397,500 $ 5.38 417,500 $ 7.24 Forfeited (255,003 ) $ 8.27 (217,501 ) $ 7.04 (98,751 ) $ 8.17 Vested — $ — — $ — (153,745 ) $ 9.13 Non-vested at end of period 1,255,000 $ 3.45 760,003 $ 6.92 580,004 $ 8.02 Stock Options— The fair value of each option grant is estimated using the Black-Scholes option-pricing model using the weighted-average assumptions in the table below. This valuation model requires the Company to make assumptions and judgments about the variables used in the calculation, including the fair value of the Company’s common stock, the expected life (the period of time that the options granted are expected to be outstanding), the volatility of the Company’s common stock, a risk-free interest rate and expected dividends. The expected life of options granted is derived from historical exercise behavior. The risk-free rate for periods within the expected life of the option is based on the U.S. Treasury rates in effect at the time of grant. The stock options vest 25% after one year, beginning on the first anniversary date of the grant, and 6.25% each quarter following the first anniversary. There was no cash flow impact resulting from the grants. No stock options were granted during the years ended December 31, 2018 , 2017 , and 2016. A summary of the status of options previously granted as of December 31, 2018 , 2017 , and 2016 , and the changes during the periods then ended is presented below: Year Ended December 31, 2018 Options Weighted-Average Exercise Price Aggregate Intrinsic Value Options outstanding at January 1 1,101,875 $ 9.28 $ — Exercised — $ — $ — Forfeited (774,875 ) $ 9.67 — Options outstanding at December 31 327,000 $ 8.35 $ — Exercisable at December 31 327,000 $ 8.35 $ — Year Ended December 31, 2017 Options Weighted-Average Exercise Price Aggregate Intrinsic Value Options outstanding at January 1 1,779,613 $ 8.46 $ 50,869 Exercised (66,188 ) $ 6.08 $ 12,821 Forfeited (611,550 ) $ 7.25 — Options outstanding at December 31 1,101,875 $ 9.28 $ — Exercisable at December 31 1,076,155 $ 9.32 $ — Options expected to Vest at December 31 25,720 $ 7.43 Year Ended December 31, 2016 Options Weighted-Average Exercise Price Aggregate Intrinsic Value Options outstanding at January 1 2,673,512 $ 7.46 $ 5,485,248 Exercised (641,710 ) $ 4.37 $ 2,209,260 Forfeited (252,189 ) $ 8.20 — Options outstanding at December 31 1,779,613 $ 8.46 $ 50,869 Exercisable at December 31 1,552,642 $ 8.52 $ 50,869 In connection with the Company’s sale of Slashdot Media, the Company accelerated the vesting of 130,375 shares of restricted stock and 24,001 stock options to certain former employees during the year ended December 31, 2016, the expense of which is recorded in Disposition Related and Other Costs in the Consolidated Statements of Operations. The weighted-average remaining contractual term of options exercisable at December 31, 2018 is 1.4166666667 years. The following table summarizes information about options outstanding as of December 31, 2018 : Options Outstanding Options Exercisable Exercise Price Number Outstanding Weighted- Average Remaining Contractual Life Number Exercisable (in years) $ 7.00 - $ 7.99 155,000 2.1 155,000 $ 8.00 - $ 8.99 92,000 0.8 92,000 $ 9.00 - $ 9.99 80,000 1.1 80,000 327,000 327,000

INCOME TAXES (Notes)

INCOME TAXES (Notes)	12 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	INCOME TAXES Deferred tax assets (liabilities) included in the balance sheet as of December 31, 2018 and 2017 are as follows (in thousands): 2018 2017 Deferred tax assets: Net operating loss carryforward $ 71 $ 168 Capital loss carryforward 5,263 — Allowance for doubtful accounts 145 272 Provision for accrued expenses and other, net 1,621 1,300 Stock based compensation 2,603 3,770 Deferred revenue 537 920 Tax credit carryforward 272 — 10,512 6,430 Less valuation allowance 5,305 224 Deferred tax asset, net of valuation allowance 5,207 6,206 Deferred tax liabilities: Acquired intangibles (10,374 ) (10,933 ) Depreciation of fixed assets (3,291 ) (3,049 ) Capitalized contract costs (1,850 ) — Deferred tax liabilities (15,515 ) (13,982 ) Net deferred tax liability $ (10,308 ) $ (7,776 ) Recognized in Consolidated Balance Sheets: Deferred tax asset 136 469 Deferred tax liability (10,444 ) (8,245 ) Net deferred tax liability $ (10,308 ) $ (7,776 ) The Company had deferred tax assets of $0.1 million and $0.2 million , respectively, at December 31, 2018 and 2017 related to net operating loss carryforwards; $5.3 million at December 31, 2018 related to capital loss carryforwards; and $0.3 million at December 31, 2018 related to tax credit carryforwards. The Company had no capital loss or tax credit carryforwards at December 31, 2017. The net operating losses expire in various years through 2037 and the capital losses expire in 2023. The tax credit carryforward period is indefinite. The Company has recorded valuation allowances of $5.3 million and $0.2 million , respectively, at December 31, 2018 and 2017 in order to measure only the portion of the deferred tax assets which are more likely than not to be realized. Tax expense (benefit) for the years ended December 31, 2018 , 2017 and 2016 is as follows (in thousands): 2018 2017 2016 Current income tax expense (benefit): Federal $ (1,299 ) $ 1,984 $ 5,048 State (119 ) (285 ) 931 Foreign 1,570 1,504 2,259 Current income tax expense 152 3,203 8,238 Deferred income tax expense (benefit): Federal 1,387 (207 ) (891 ) State 104 329 192 Foreign 785 94 (2,260 ) Deferred income tax expense (benefit) 2,276 216 (2,959 ) Income tax expense $ 2,428 $ 3,419 $ 5,279 A reconciliation between the tax expense at the federal statutory rate and the reported income tax expense is summarized as follows: Year Ended December 31, 2018 2017 2016 Federal statutory rate $ 2,016 $ 6,789 $ (42 ) Gain (loss) on sale of businesses (6,111 ) (1,571 ) — Stock-based compensation 2,112 1,414 — Nondeductible impairment — — 5,287 State taxes, net of federal effect (38 ) 35 756 Difference between foreign and U.S. rates (102 ) (1,054 ) 297 Change in accrual for unrecognized tax benefits (1,179 ) 1,003 (923 ) U.S. tax on global intangible low-taxed income, net of credits 229 — — Executive compensation 126 — — Currency translation gains 219 — — Gross tax on foreign dividend — 275 5,084 Foreign tax credits — (275 ) (4,244 ) U.S. transition tax on foreign earnings 368 2,962 — Federal rate change impact on deferred tax liabilities — (3,281 ) — Research and development tax credits (481 ) (1,764 ) (173 ) Change in valuation allowances 5,117 (780 ) (713 ) Other 152 (334 ) (50 ) Income tax expense $ 2,428 $ 3,419 $ 5,279 Effective tax rate 25.3 % 17.6 % (4,436.1 )% H.R.1, commonly known as the Tax Cuts and Jobs Act (“TCJA”), was signed into law in December 2017 and made significant changes to the Internal Revenue Code. Changes included a reduction in the U.S. statutory federal tax rate from 35% to 21%; the transition of U.S. international taxation from a worldwide tax system to a territorial system; a one-time transition tax on the deemed repatriation of undistributed earnings from foreign subsidiaries; and a tax on global intangible low-taxed income earned by foreign subsidiaries. Subsequent to enactment of the TCJA in December 2017, the Securities and Exchange Commission staff issued Staff Accounting Bulletin No. 118 (“SAB 118”) to provide guidance regarding accounting for the TCJA’s impact. SAB 118 required companies to recognize those tax items for which accounting had been completed. For items whose accounting had not been completed, companies were required to recognize provisional amounts to the extent they were reasonably estimable, with subsequent adjustments over a measurement period as more information was available and calculations were finalized. The measurement period provided in SAB 118 concluded as of December 2018. As of December 31, 2017, the Company applied the guidance of SAB 118 and recorded a provisional decrease of $3.3 million in its deferred tax liabilities to reflect the new U.S. statutory rate of 21%; and recorded a liability of $3.0 million less tax credits of $1.4 million for a $1.6 million provisional estimate of the transition tax on the deemed repatriation of foreign earnings. In the year ended December 31, 2018, the Company completed its analysis of the impact of the TCJA on its deferred tax liabilities and its transition tax liability. No change was made to the provisional adjustment of the deferred tax liabilities. For the transition tax, the Company recognized a measurement-period adjustment on the basis of revised foreign earnings computations and additional guidance issued by U.S. federal and state tax authorities. The adjustment increased the transition tax liability to $2.0 million , resulting in tax expense of $0.4 million . The Company had asserted as of December 31, 2016 that with the exception of its Canada subsidiary, all unremitted earnings of foreign subsidiaries were indefinitely reinvested outside the U.S. As of December 31, 2017, the Company indicated that it was evaluating the impact of the TCJA on the Company's existing accounting position with regard to indefinite reinvestment, including an analysis of the potential U.S. and foreign tax liabilities that could result from future repatriations. The Company completed this evaluation in the year ended December 31, 2018 and made no change to its indefinite reinvestment position. The Company also sold its Canada subsidiary during 2018. As of December 31, 2018, undistributed earnings of all foreign subsidiaries will continue to be indefinitely reinvested outside the U.S., and taxes that would result from distributions have not been provided as determination of the deferred tax liability is not practicable. The TCJA established new rules designed to tax U.S. companies on global intangible low-taxed income ("GILTI") earned by foreign subsidiaries. Companies can make an accounting policy election either to recognize deferred taxes for temporary basis differences related to GILTI; or to recognize tax expense as current period cost in the period when the tax related to GILTI is incurred. As of December 31, 2017, the Company indicated that it was evaluating its policy election alternatives and the impact of GILTI on tax expense. The Company completed this evaluation in the year ended December 31, 2018 and elected to treat tax expense related to GILTI as a current period cost. The Company determined its GILTI liability for 2018 to be $0.4 million less tax credits of $0.2 million , resulting in tax expense of $0.2 million . The Company recorded impairment charges of zero, $2.2 million , and $24.6 million for the years ended December 31, 2018, 2017, and 2016, respectively. Of the total impairment, the amount relating to non-deductible goodwill in 2016 was $15.4 million , which caused tax expense to exceed the expected expense at statutory tax rates by $5.3 million . The amount of non-deductible goodwill was zero in 2018 and 2017. Prior to December 2016, the Company had asserted under ASC 740-30 that all unremitted earnings of its foreign subsidiaries were indefinitely invested. The Company evaluates this assertion based on a number of factors, including the operating plans, budgets, and forecasts for both the Company and its foreign subsidiaries; the long-term and short-term financial requirements in the U.S. and in each foreign jurisdiction; and the tax consequences of any decision to repatriate earnings of foreign subsidiaries to the U.S. In the fourth quarter of 2016, the Company evaluated a tax planning strategy related to the utilization of foreign tax credits on its U.S. federal tax return. Absent the strategy, the Company believed that it would not realize any of the credits during the allowable carryforward period under U.S. law. The Company concluded in December 2016 that it would implement the strategy, thus impacting the tax consequences of repatriation by enabling greater utilization of foreign tax credits. As a result, the Company changed its assertion regarding the indefinite reinvestment of its Canada subsidiary’s foreign earnings, but did not change its assertion with regard to the undistributed earnings of all other foreign subsidiaries. The Company recorded a tax liability of $0.8 million at December 31, 2016 reflecting the repatriation of $16.4 million from Canada to the U.S. All cumulative earnings of the Canada subsidiary through December 31, 2016 were distributed, so no additional accrual for deferred taxes related to earnings of the Canada subsidiary was required. The Company also recorded a tax benefit of $0.7 million in the year ended December 31, 2016 to record the partial release of a valuation allowance related to its foreign tax credit carryforwards. An uncertain tax position represents the Company’s expected treatment of a tax position taken in a filed tax return, or planned to be taken in a tax return not yet filed, that has not been reflected in measuring income tax expense for financial reporting purposes. At December 31, 2018 and 2017 , the Company has recorded a liability of $1.7 million and $2.9 million , respectively, which consists of unrecognized tax benefits of $1.4 million and $2.5 million , respectively, and estimated accrued interest and penalties of $0.3 million and $0.4 million , respectively. The Company recognizes interest and penalties related to uncertain tax positions in income tax expense. During the years ended December 31, 2018 , 2017 and 2016 , interest expense (income) and penalties recorded in the Consolidated Statements of Operations were $(61,000) , $(41,000) and $(86,000) , respectively. Following is a reconciliation of the amounts of unrecognized tax benefits, net of tax and excluding interest and penalties, for the years ended December 31, 2018 , 2017 and 2016 (in thousands): 2018 2017 2016 Unrecognized tax benefits—beginning of period $ 2,539 $ 2,153 $ 2,989 Increases in tax positions related to current year 330 278 117 Increases in tax positions related to prior year — 646 — Decreases in tax positions related to prior year (9 ) — (43 ) Settlements with taxing authorities (838 ) — — Lapse of statute of limitations (600 ) (538 ) (910 ) Unrecognized tax benefits—end of period $ 1,422 $ 2,539 $ 2,153 The foregoing table indicates unrecognized tax benefits, net of tax and excluding interest and penalties. The balance of gross unrecognized benefits was $1.5 million , $2.7 million , and $2.9 million at December 31, 2018, 2017 and 2016, respectively. If the unrecognized tax benefits at December 31, 2018, 2017 and 2016 were recognized in full, tax benefits of $1.7 million , $2.9 million and $2.5 million , respectively, would affect the effective tax rate. The Company files income tax returns in the U.S. and various foreign jurisdictions. The Company is generally no longer subject to examinations by U.S. federal tax authorities for tax years prior to 2015, or by U.S. state and foreign authorities for tax years prior to 2014. The Company believes it is reasonably possible that as much as $0.2 million of its unrecognized tax benefits may be recognized by the end of 2019 as a result of a lapse of the statute of limitations.

EMPLOYEE SAVINGS PLAN (Notes)

EMPLOYEE SAVINGS PLAN (Notes)	12 Months Ended
	Dec. 31, 2018
Retirement Benefits [Abstract]
Pension and Other Postretirement Benefits Disclosure [Text Block]	EMPLOYEE SAVINGS PLAN The Company has a savings plan (the “Savings Plan”) that qualifies as a deferred salary arrangement under Section 401(k) of the Internal Revenue Code. Under the Savings Plan, participating employees may defer a portion of their pretax earnings, up to the Internal Revenue Service annual contribution limit. The Company contributed $1.3 million , $1.7 million , and $1.7 million for the years ended December 31, 2018 , 2017 and 2016 , respectively, to match employee contributions to the Savings Plan.

SEGMENT INFORMATION

SEGMENT INFORMATION	12 Months Ended
	Dec. 31, 2018
Segment Reporting [Abstract]
Segment Information	SEGMENT INFORMATION The Company previously had two reportable segments which was reduced to one reportable segment when Health eCareers (Healthcare reportable segment) was sold on December 4, 2017. The remaining Tech-focused reportable segment includes the Dice, Dice Europe (ceased operations on August 31, 2018), ClearanceJobs, eFinancialCareers (formerly in the Global Industry Group segment), and Brightmatter (absorbed into Tech-focused in the third quarter of 2017 and formerly in Corporate & Other) services. Management has organized its reportable segment based upon our internal management reporting. The Company has other services and activities that individually are not significant in relation to consolidated revenues, operating income or total assets. These include Slashdot Media (business sold in the first quarter of 2016), Hcareers (sold May 22, 2018), Rigzone (sold the RigLogix portion of the Rigzone business on February 20, 2018 and transferred majority ownership of the remaining Rigzone business to Rigzone management on August 31, 2018), BioSpace (transferred majority ownership to BioSpace management on January 31, 2018) (each formerly in the Global Industry Group segment), and getTalent (discontinued in the third quarter of 2017) services, which are recorded in the "Corporate & Other" category, along with corporate-related costs which are not considered in a segment. The Company’s foreign operations are comprised of the Dice Europe operation (ceased operations on August 31, 2018) and a portion of the eFinancialCareers and Rigzone services (sold the RigLogix portion of the Rigzone business on February 20, 2018 and transferred majority ownership of the remaining Rigzone business to Rigzone management on August 31, 2018), which operate in Europe, the financial centers of the gulf region of the Middle East and Asia Pacific. The Company’s foreign operations also include Hcareers (sold on May 22, 2018), which operated in Canada. Revenue by geographic region, as shown in the table below, is based on the location of each of the Company’s subsidiaries. The following table shows the segment information (in thousands): 2018 2017 2016 By Segment: Revenues: Tech-focused $ 152,258 $ 158,398 $ 170,599 Healthcare — 24,354 27,066 Corporate & Other 9,312 25,198 29,305 Total revenues $ 161,570 $ 207,950 $ 226,970 Depreciation: Tech-focused $ 8,942 $ 6,868 $ 7,060 Healthcare — 1,625 2,089 Corporate & Other 338 1,259 700 Total depreciation $ 9,280 9,752 $ 9,849 Amortization: Tech-focused $ — $ 132 $ 1,923 Healthcare — 596 835 Corporate & Other 482 1,410 4,029 Total amortization $ 482 $ 2,138 $ 6,787 Operating income (loss): Tech-focused $ 26,851 $ 38,462 $ 54,066 Healthcare — (1,507 ) (929 ) Corporate & Other (15,159 ) (14,090 ) (49,746 ) Operating income 11,692 22,865 3,391 Interest expense (2,054 ) (3,445 ) (3,481 ) Other expense (36 ) (23 ) (29 ) Income (loss) before income taxes $ 9,602 $ 19,397 $ (119 ) Capital expenditures: Tech-focused $ 10,060 $ 10,481 $ 7,545 Healthcare — 1,160 1,113 Corporate & Other 221 1,914 2,756 Total capital expenditures $ 10,281 $ 13,555 $ 11,414 2018 2017 2016 By Geography: Revenues: United States $ 121,097 $ 154,406 $ 167,855 United Kingdom 15,665 22,247 23,969 EMEA, APAC and Canada (1) 24,808 31,297 35,146 Non-United States 40,473 53,544 59,115 Total revenues $ 161,570 $ 207,950 $ 226,970 (1) Europe (excluding United Kingdom), the Middle East and Africa (“EMEA”) and Asia-Pacific (“APAC”) December 31, December 31, December 31, Total assets: Tech-focused $ 251,860 $ 266,390 $ 263,462 Healthcare — — 14,375 Corporate & Other 6,525 29,328 32,258 Total assets $ 258,385 $ 295,718 $ 310,095 The following table shows the carrying amount of goodwill by segment as of December 31, 2017 and 2018 and the changes in goodwill for the years ended (in thousands): Tech-focused Healthcare Corporate & Other Total Goodwill at January 1, 2017 $ 152,162 $ 6,269 $ 13,314 $ 171,745 Foreign currency translation adjustment 5,315 — — 5,315 Sale of business — (6,269 ) — (6,269 ) Goodwill at December 31, 2017 $ 157,477 $ — $ 13,314 $ 170,791 Foreign currency translation adjustment (3,503 ) — — (3,503 ) Sale of business — — (13,314 ) (13,314 ) Goodwill at December 31, 2018 $ 153,974 $ — $ — $ 153,974 Goodwill at December 31, 2018 Goodwill $ 153,974 $ — $ — $ 153,974 Accumulated impairment losses — — — — $ 153,974 $ — $ — $ 153,974 The annual impairment tests for the Tech-focused reporting unit, which were performed as of October 1, 2018 and 2017, resulted in the fair value of the reporting unit exceeding the carrying value by 40% and 1%, respectively. The increased fair value as compared to the carrying value is primarily driven by improved operating results and projections and a reduction in the estimated tax rate from 36% at October 1, 2017 to 26% and October 1, 2018. Results for the Tech-focused reporting unit for the fourth quarter of 2018 and estimated future results as of December 31, 2018 are consistent with the October 1, 2018 analysis. As a result, the Company believes it is not more likely than not that the fair value of the reporting units is less than the carrying value as of December 31, 2018. Therefore, no interim impairment testing was performed as of December 31, 2018. The amount of goodwill as of December 31, 2018 allocated to the Tech-focused reporting unit was $154.0 million . Determining the fair value of a reporting unit is judgmental in nature and requires the use of estimates and key assumptions, particularly assumed discount rates and projections of future operating results. The discount rate applied for the Tech-focused reporting unit was 14.3% An increase to the discount rate applied or reductions to future projected operating results could result in future impairment of the Tech-focused reporting unit’s goodwill. It is reasonably possible that changes in judgments, assumptions and estimates the Company made in assessing the fair value of goodwill could cause the Company to consider some portion or all of the goodwill of the Tech-focused reporting unit to become impaired. In addition, a future decline in the overall market conditions and/or changes in the Company’s market share could negatively impact the estimated future cash flows and discount rates used to determine the fair value of the reporting unit and could result in an impairment charge in the foreseeable future. The Tech-focused reporting unit has gone through a period of revenue declines, resulting from competition in the U.S. as well as market slowness in the U.K. due to Brexit. These disruptions and uncertainties could decrease demand for finance and technology professionals in the markets we serve. This decline in demand and any future declines in demand could significantly decrease the use of our finance and technology industry job posting websites and related services, which may adversely affect the Tech-focused reporting unit's financial condition and results of operations. If recruitment activity is slow in the industries in which we operate during 2019 and beyond, our revenues and results of operations may be negatively impacted. As a result of these factors, in the fourth quarter, the Company further evaluated the fair value of the Tech-focused reporting unit and believes it is not more likely than not that the fair value is less than the carrying value. If events and circumstances change resulting in significant reductions in actual operating income or projections of future operating income, the Company will test this reporting unit for impairment prior to the annual impairment test. The decline in oil prices in 2014 and 2015 and the continued volatility in 2016 decreased demand for energy professionals worldwide. This decline in demand for energy professionals significantly decreased the use of the Company’s energy industry products and services, adversely affecting the Energy reporting unit’s financial condition and results of operations. As a result of these factors, the Company evaluated the fair value of this reporting unit and recorded a goodwill impairment of $15.4 million during the quarter ended September 30, 2016 at the Corporate & Other segment, bringing goodwill for the Energy reporting unit to zero. See Note 5 for further discussion.

EARNINGS PER SHARE

EARNINGS PER SHARE	12 Months Ended
	Dec. 31, 2018
Earnings Per Share [Abstract]
Earnings Per Share	EARNINGS PER SHARE Basic earnings per share (“EPS”) is computed based on the weighted-average number of shares of common stock outstanding. Diluted EPS is computed based on the weighted-average number of shares of common stock outstanding plus common stock equivalents assuming exercise of stock options, where dilutive. In 2016 shares issuable from stock-based awards of $ 0.8 million were excluded from the computation of shares contingently issuable upon exercise as we recognized a net loss. The following is a calculation of basic and diluted earnings per share and weighted-average shares outstanding (in thousands, except per share amounts): 2018 2017 2016 Income (loss) from continuing operations—basic and diluted $ 7,174 $ 15,978 $ (5,398 ) Weighted-average shares outstanding—basic 48,520 47,908 48,319 Add shares issuable from stock-based awards 1,085 322 — Weighted-average shares outstanding—diluted 49,605 48,230 48,319 Basic earnings (loss) per share $ 0.15 $ 0.33 $ (0.11 ) Diluted earnings (loss) per share $ 0.14 $ 0.33 $ (0.11 )

QUARTERLY RESULTS OF OPERATIONS

QUARTERLY RESULTS OF OPERATIONS (Notes)	12 Months Ended
	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information [Text Block]	QUARTERLY RESULTS OF OPERATIONS (UNAUDITED) The following is a summary of unaudited quarterly results of operations for 2018 and 2017: For the Three Months Ended March 31 [1] June 30 [2] September 30 [3] December 31 (in thousands, except per share amounts) 2018 Revenues $ 43,071 $ 41,595 $ 38,917 $ 37,987 Total operating expenses 40,861 39,686 37,085 35,615 Other operating income (loss) 4,639 (839 ) (365 ) (66 ) Operating income $ 6,849 $ 1,070 $ 1,467 $ 2,306 Net income (loss) $ 3,503 $ (205 ) $ 930 $ 2,946 Basic earnings per common share $ 0.07 $ — $ 0.02 $ 0.06 [4] Diluted earnings per common share $ 0.07 $ — $ 0.02 $ 0.06 [4] 2017 Revenues $ 52,190 $ 52,400 $ 52,424 $ 50,936 Total operating expenses 47,895 48,398 49,886 48,898 Other Operating Income $ — $ — $ — $ 9,992 [5] Operating income (loss) $ 4,295 $ 4,002 $ 2,538 $ 12,030 Net income (loss) $ 1,340 $ 1,822 $ 1,058 $ 11,758 Basic earnings (loss) per common share $ 0.03 $ 0.04 $ 0.02 $ 0.24 [4] Diluted earnings (loss) per common share $ 0.03 $ 0.04 $ 0.02 $ 0.24 [4] [1] Majority ownership of the BioSpace business was transferred to BioSpace management on January 31, 2018 and the RigLogix portion of the Rigzone business was sold on February 20, 2018. [2] The Hcareers business was sold on May 22, 2018. [3] Majority ownership of the remaining Rigzone business was transferred to Rigzone management and Dice Europe ceased operations on August 31, 2018. [4] The sum of the quarter may not equal the full year amount. [5] Includes gain on sale of Health eCareers of $6.7 million and proceeds from restitution award of $3.3 million related to the OilPro legal matter.

CONSOLIDATED VALUATION AND QUAL

CONSOLIDATED VALUATION AND QUALIFYING ACCOUNTS (Notes)	12 Months Ended
	Dec. 31, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]	SCHEDULE II DHI GROUP, INC. CONSOLIDATED VALUATION AND QUALIFYING ACCOUNTS As of December 31, 2016, 2017 and 2018 (in thousands) Column A Column B Column C Column D Column E Balance at Beginning of Period Charged to Income Deductions Balance at End of Period Description Reserves Deducted From Assets to Which They Apply: Reserve for uncollectible accounts receivable: Year ended December 31, 2016 $ 2,945 $ 1,435 $ (1,199 ) $ 3,181 Year ended December 31, 2017 3,181 1,556 (3,049 ) 1,688 Year ended December 31, 2018 1,688 1,069 (2,110 ) 647 Deferred tax valuation allowance: Year ended December 31, 2016 $ 1,746 $ (713 ) $ — $ 1,033 Year ended December 31, 2017 (1) 1,033 (809 ) — 224 Year ended December 31, 2018 (2) 224 5,081 — 5,305 ____________________ (1)

SUBSEQUENT EVENTS (Notes)

SUBSEQUENT EVENTS (Notes)	12 Months Ended
	Dec. 31, 2018
Subsequent Event [Line Items]
Subsequent Events [Text Block]	19. SUBSEQUENT EVENT None.

REVENUE RECOGNITION (Notes)

REVENUE RECOGNITION (Notes)	12 Months Ended
	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Policy Text Block]	3. REVENUE RECOGNITION On January 1, 2018, the Company adopted Topic 606 applying the modified retrospective method to all contracts that were not completed as of January 1, 2018. Results for reporting periods beginning after January 1, 2018 will be presented under Topic 606, while prior period amounts will not be adjusted and continue to be reported under the accounting standards in effect prior to January 1, 2018. We recorded a net increase to opening retained earnings of $4.5 million as of January 1, 2018 due to the cumulative impact of adopting Topic 606. Changes in accounting policies as a result of adopting Topic 606 and nature of goods. The Company recognizes revenue when control of the promised goods or services is transferred to our customers at an amount that reflects the consideration to which we expect to receive in exchange for those goods or services. Revenue is recognized net of customer discounts ratably over the service period. Customer billings delivered in advance of services being rendered are recorded as deferred revenue and recognized over the service period. See also Note 2 to the Notes to Consolidated Financial Statements. Disaggregation of revenue Our brands serve various economic professions, such as technology, financial, hospitality (the Hcareers business was sold on May 22, 2018), and energy (sold the RigLogix portion of the Rigzone business on February 20, 2018 and transferred majority ownership of the remaining Rigzone business to Rigzone management on August 31, 2018). The following table provides information about disaggregated revenue by brand and includes a reconciliation of the disaggregated revenue with reportable segments (in thousands): For the Year Ended December 31, 2018 Tech-focused Corporate & Other Total Dice (1) $ 94,438 $ — $ 94,438 ClearanceJobs 21,086 — 21,086 Dice Europe (2) 2,976 — 2,976 eFinancial Careers 33,758 — 33,758 Hcareers (3) — 5,329 5,329 Rigzone (3) — 3,771 3,771 BioSpace (3) — 212 212 Total $ 152,258 $ 9,312 $ 161,570 (1) Includes Dice U.S. and Targeted Job Fairs. (2) The Company ceased Dice Europe operations on August 31, 2018. (3) The Company sold the RigLogix portion of the Rigzone business on February 20, 2018 and transferred majority ownership of the remaining Rigzone business to Rigzone management on August 31, 2018. Hcareers was sold on May 22, 2018 and the Company transferred majority ownership of BioSpace to BioSpace management on January 31, 2018. Revenue for periods ending prior to January 1, 2018 have not been presented under Topic 606. Contract Balances The following table provides information about opening and closing balances of receivables and contract liabilities from contracts with customers as required under Topic 606 (in thousands): As of December 31, 2018 As of January 1, 2018 Receivables $ 22,850 $ 38,769 Short-term contract liabilities (deferred revenue) 54,723 83,646 Long-term contract liabilities (deferred revenue) 1,363 — We receive payments from customers based upon contractual billing schedules; accounts receivable is recorded when customers are invoiced per the contractual billing schedules. As the Company's standard payment terms are less than one year, the Company elected the expedient, where applicable. As a result, the Company did not consider the effects of a significant financing component. Contract liabilities include customer billings delivered in advance of performance under the contract, and associated revenue is realized when services are rendered under the contract. Receivables increase due to customer billings and decrease by cash collected from customers along with business divestitures. Included in January 1, 2018 is $4.4 million of receivables related to businesses divested during the year ended December 31, 2018. Contract liabilities increase due to customer billings and are decreased as performance obligations are satisfied under the contracts. Included in January 1, 2018 is $8.4 million of short-term contract liabilities related to the businesses divested during the year ended December 31, 2018. During the year ended December 31, 2018, the Company recognized the following revenues as a result of changes in the contract liability balances in the respective periods (in thousands): Year Ended December 31, 2018 Revenue recognized in the period from: Amounts included in the contract liability at the beginning of the period $ 75,967 Transaction price allocated to the remaining performance obligations Under the guidance of Topic 606, the following table includes estimated revenue expected to be recognized in future periods related to performance obligations that are unsatisfied or partially unsatisfied at the end of the reporting period (in thousands): 2019 2020 2021 Total Tech-focused $ 54,723 $ 1,348 $ 15 $ 56,086 Contract acquisition costs In connection with the adoption of Topic 606, we are required to capitalize certain contract acquisition costs consisting primarily of commissions paid when contracts are signed. As allowed for by the practical expedient, the Company is using a portfolio approach for contract acquisition costs, which allows the new revenue guidance to be applied to a portfolio of contracts with similar characteristics. As a result, the Company has applied the portfolio approach to new business contracts and recurring or remaining business contracts. The Company reasonably expects that the effects of applying the portfolio approach would not differ materially from applying Topic 606 at the individual contract level. As of January 1, 2018, the date we adopted Topic 606, we capitalized $6.1 million in contract acquisition costs related to contracts that were not completed. The cumulative effect for contract acquisition costs was computed based on contracts in force as of December 31, 2017 using the average commission rates on both new business sales contracts, to be amortized over approximately two years, and the remaining sales contracts to be amortized over approximately one year. For costs incurred to obtain new business sales contracts, we will record these costs over an average customer life, which was determined using customer renewal rates; for the remaining sales contracts, we will record these costs over the weighted average contract term. For the year ended December 31, 2018, the Company recorded $10.1 million of expense related to the amortization of contract acquisition costs and there was no impairment loss incurred. During the year ended December 31, 2018 $1.2 million of contract acquisition costs were removed due to the sale of BioSpace and the RigLogix portion of the Rigzone business in the first quarter of 2018, the sale of Hcareers in the second quarter of 2018, and the transfer of majority ownership of the remaining Rigzone business to Rigzone management in the third quarter of 2018. In accordance with Topic 606, the impact of adoption to our consolidated statements of operations was as follows: Year Ended December 31, 2018 (in thousand, except per share amounts As Reported Balance Without Adoption of Topic 606 Effect of Change-Higher (Lower) Revenues $ 161,570 $ 161,457 $ 113 Operating expenses $ 153,247 $ 156,129 $ (2,882 ) Gain on sale of businesses $ 3,369 $ 4,568 $ (1,199 ) Operating income $ 11,692 $ 9,896 $ 1,796 Net income $ 7,174 $ 5,827 $ 1,347 Basic earnings per share $ 0.15 $ 0.12 $ 0.03 Diluted earnings per share $ 0.14 $ 0.12 $ 0.02 In accordance with Topic 606, the impact of adoption to our consolidated balance sheets was as follows: As of December 31, 2018 (in thousands) As reported Balance Without Adoption of Topic 606 Effect of Change-Higher (Lower) Assets Capitalized contract assets $ 7,939 $ — $ 7,939 Total Assets $ 258,385 $ 250,446 $ 7,939 Liabilities & Stockholders Equity Deferred revenue $ 54,723 $ 54,610 $ 113 Deferred income taxes $ 10,444 $ 8,450 $ 1,994 Total liabilities $ 113,030 $ 110,923 $ 2,107 Stockholders equity Accumulated earnings $ 71,435 $ 65,603 $ 5,832 Total stockholders' equity $ 145,355 $ 139,523 $ 5,832 Total liabilities & stockholders' equity $ 258,385 $ 250,446 $ 7,939 In accordance with Topic 606, the impact of adoption to our consolidated statements of cash flows was as follows: Year Ended December 31, 2018 As Reported Balance Without Adoption of Topic 606 Effect of Change-Higher (Lower) Cash flows from operating activities: Net Income $ 7,174 $ 5,827 $ 1,347 Adjustments to reconcile net income to net cash flows from operating activities: Deferred income taxes $ 2,699 $ 1,896 $ 803 Gain on sale of businesses, net $ (3,369 ) $ (4,568 ) $ 1,199 Capitalized contract costs $ (3,236 ) $ — $ (3,236 ) Deferred revenue $ (18,866 ) $ (18,753 ) $ (113 ) Net cash flows from operating activities $ 14,918 $ 14,918 $ —
Revenue from Contract with Customer [Text Block]	The following table provides information about opening and closing balances of receivables and contract liabilities from contracts with customers as required under Topic 606 (in thousands): As of December 31, 2018 As of January 1, 2018 Receivables $ 22,850 $ 38,769 Short-term contract liabilities (deferred revenue) 54,723 83,646 Long-term contract liabilities (deferred revenue) 1,363 — We receive payments from customers based upon contractual billing schedules; accounts receivable is recorded when customers are invoiced per the contractual billing schedules. As the Company's standard payment terms are less than one year, the Company elected the expedient, where applicable. As a result, the Company did not consider the effects of a significant financing component. Contract liabilities include customer billings delivered in advance of performance under the contract, and associated revenue is realized when services are rendered under the contract. Receivables increase due to customer billings and decrease by cash collected from customers along with business divestitures. Included in January 1, 2018 is $4.4 million of receivables related to businesses divested during the year ended December 31, 2018. Contract liabilities increase due to customer billings and are decreased as performance obligations are satisfied under the contracts. Included in January 1, 2018 is $8.4 million of short-term contract liabilities related to the businesses divested during the year ended December 31, 2018. During the year ended December 31, 2018, the Company recognized the following revenues as a result of changes in the contract liability balances in the respective periods (in thousands): Year Ended December 31, 2018 Revenue recognized in the period from: Amounts included in the contract liability at the beginning of the period $ 75,967

SIGNIFCANT ACCOUNTING POLICIE_2

SIGNIFCANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	Principles of Consolidation — The consolidated financial statements include the accounts of DHI and its wholly-owned subsidiaries and cost method investment. All intercompany balances and transactions have been eliminated in consolidation.
Revenue Recognition, Policy [Policy Text Block]	Revenue Recognition — On January 1, 2018, we adopted Topic 606 applying the modified retrospective method to all contracts that were not completed as of January 1, 2018. Results for periods beginning after January 1, 2018 are presented under Topic 606, while prior periods are reported under the accounting standards in effect for the period presented. Under Topic 606, we recognize revenue when control of the promised goods or services is transferred to our customers at an amount that reflects the consideration to which we expect to receive in exchange for those goods or services. Revenue is recognized net of customer discounts ratably over the service period. Billings with customers are based on contractual schedules. Customer billings delivered in advance and payments received in advance of services being rendered are recorded as deferred revenue and recognized over the service period. We generate revenues from the following sources: Recruitment packages. Recruitment package revenues are derived from the sale to recruiters and employers of a combination of job postings and access to a searchable database of candidates on the Dice, ClearanceJobs, eFinancialCareers and Rigzone (sold the RigLogix portion of the Rigzone business on February 20, 2018 and DHI transferred majority ownership of the remaining Rigzone business to Rigzone management on August 31, 2018). Certain of the Company’s arrangements include multiple performance obligations, which primarily consists of the ability to post jobs and access to a searchable database of candidates. The Company determines the units of accounting for multiple performance obligations in accordance with Topic 606. Specifically, the Company considers a performance obligation as a separate unit of accounting if it has value to the customer on a standalone basis. The Company’s arrangements do not include a general right of return. Services to customers buying a package of available job postings and access to the database are delivered over the same period and revenue is recognized ratably over the length of the underlying contract, typically from one to twelve months. The separation of the package into two deliverables results in no change in revenue recognition since delivery of the two services occurs over the same time period. Advertising revenue. Advertising revenue is recognized over the period in which the advertisements are displayed on the websites or at the time a promotional e-mail is sent out to the audience. Classified revenue. Classified job posting revenues are derived from the sale of job postings to recruiters and employers. A job posting is the ability to list a job on the website for a specified time period. Revenue from the sale of classified job postings is recognized ratably over the length of the contract or the period of actual usage. Data services revenue. Access to the Company’s database of energy industry data is provided to customers for a fee. Data services revenue is recognized ratably over the length of the underlying contract, typically from one to twelve months. The data services business, called RigLogix, was sold on February 20, 2018. Career fair and recruitment event booth rentals. Career fair and recruitment event revenues are derived from renting booth space to recruiters and employers. Revenue from these sales are recognized when the career fair or recruitment event is held.
Concentration Risk, Credit Risk, Policy [Policy Text Block]	Concentration of Credit Risk— Cash is maintained with several financial institutions. Deposits held with banks may exceed the amount of insurance provided on such deposits. These deposits may be redeemed upon demand. The Company believes it is not exposed to any significant credit risk. The Company performs ongoing credit evaluations of its customers’ financial condition and generally does not require collateral on accounts receivable. No single customer represents 10% or more of revenues for the years ended December 31, 2018, 2017 and 2016.
Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block]	Allowance for Doubtful Accounts— The Company maintains allowances for doubtful accounts for estimated losses resulting from the inability of its customers to make required payments. If the financial condition of DHI’s customers were to deteriorate, resulting in an impairment of their ability to make payments, additional allowances may be required.
Cash and Cash Equivalents, Policy [Policy Text Block]	Statements of Cash Flows— All bank deposits are considered cash. The supplemental disclosures to the accompanying consolidated statements of cash flows are as follows (in thousands): 2018 2017 2016 Supplemental cash flow information: Interest paid $ 1,807 $ 3,254 $ 3,256 Taxes paid 2,634 4,697 9,096 Non-cash investing and financing activities: Capital expenditures on fixed assets included in accounts payable and accrued expenses 223 63 201
Investment, Policy [Policy Text Block]	Investments— During 2017, pursuant to the achievement of certain performance milestones, the Company purchased additional preferred stock representing a 2.3% interest in the fully diluted shares of a leading tech skills assessment company for $0.5 million , bringing its total interest to 10.0% . During the year ended December 31, 2018, the skills assessment company completed an additional equity offering, lowering DHI's total interest to 7.6% . As of December 31, 2018, it was not practicable to estimate the fair value of the preferred stock as the shares are not traded. The investment is carried at its original cost of $2.0 million , which is included in the other asset section of the consolidated balance sheets. On January 31, 2018, the Company transferred a majority ownership of the BioSpace business to BioSpace management with zero proceeds received from the transfer. The Company retained a 20% preferred share interest in the BioSpace business. The fair value of the investment was estimated to be zero at the time of the transfer. As of December 31, 2018, it was not practicable to estimate the fair value of the preferred stock investment as the shares are not traded. The investment is recorded at cost, which is zero. Upon a liquidation, sale or change in control of BioSpace within five years of January 31, 2018, the Company has the right to the first $1.0 million of proceeds or the option to convert its 20% preferred stock interest to a 20% common stock interest. On January 31, 2023, the 20% preferred share interest will convert to a 20% common share interest. On August 31, 2018, the Company transferred a majority ownership of the Rigzone business to Rigzone management, while retaining a 40% common share interest, with zero proceeds received from the transfer. The Company has agreed to provide $0.4 million of funding to the Rigzone business, which is recorded in accounts payable and accrued expenses on the consolidated balance sheets as of December 31, 2018. The Company has no further funding requirements to the Rigzone business. The Company has evaluated the 40% common share investment in the Rigzone business and has determined the investment meets the definition and criteria of a variable interest entity ("VIE"). The Company evaluated the VIE and determined that the Company does not have a controlling financial interest in the VIE, as the Company does not have the power to direct the activities of the VIE that most significantly impact the VIE's economic performance. The common share interest is being accounted for under the equity method of accounting as the Company has the ability to exercise significant influence over Rigzone. As accumulated earnings of the VIE have been approximately zero since the date of transfer, the investment continues to be recorded at cost, which was zero at December 31, 2018. Rigzone is a website dedicated to delivering online content, data , and career services in the oil and gas industry in North America, Europe, the Middle East, and Asia Pacific. Oil and gas companies, as well as companies that serve the energy industry, use Rigzone to find talent for roles such as petroleum engineers, sales, professionals with energy industry expertise and skilled tradesmen.
Property, Plant and Equipment, Impairment [Policy Text Block]	Fixed Assets— Depreciation of equipment, furniture and fixtures, computer software and capitalized website development costs are provided under the straight-line method over estimated useful lives ranging from two to five years. Amortization of leasehold improvements is provided over the shorter of the term of the related lease or the estimated useful life of the improvement. The cost of additions and betterments is capitalized, and repairs and maintenance costs are charged to operations in the periods incurred.
Internal Use Software, Policy [Policy Text Block]	Capitalized Software Costs— Capitalized software costs consist of costs to purchase and develop software for internal use. The Company capitalizes certain incurred software development costs in accordance with the Internal Use Software subtopic of the FASB ASC. Costs incurred during the application-development stage for software bought and further customized by outside vendors for the Company’s use and software developed by a vendor for the Company’s proprietary use have been capitalized.
Property, Plant and Equipment, Preproduction Design and Development Costs [Policy Text Block]	Website Development Costs— The Company capitalizes certain costs incurred in designing, developing, testing and implementing enhancements to its websites. These costs are amortized over the enhancement’s estimated useful life, which generally approximates two years. Costs related to the planning and post implementation phases of website development efforts are expensed as incurred.
Goodwill and Intangible Assets, Policy [Policy Text Block]	Goodwill and Indefinite-Lived Acquired Intangible Assets— Goodwill is recorded when the purchase price paid for an acquisition exceeds the estimated fair value of the net identified tangible and intangible assets acquired. The indefinite-lived acquired intangible assets include the Dice trademarks and brand name. The Company performs a test for impairment of goodwill and indefinite-lived intangible assets annually on October 1, or more frequently if indicators of potential impairment exist, to determine if the carrying value of the recorded asset is impaired. The impairment review process for goodwill compares the fair value of the reporting unit in which goodwill resides to its carrying value. The impairment review process for indefinite-lived intangible assets compares the fair value of the assets to their carrying value. The determination of whether or not the asset has become impaired involves a significant level of judgment in the assumptions underlying the approach used to determine the value of the Company’s reporting units or the intangible asset. Changes in the Company’s strategy and/or market conditions could significantly impact these judgments and require adjustments to recorded amounts of goodwill or indefinite-lived intangible assets. See Note 5 for discussion of impairment charges.
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign Currency Translation— For the Company’s foreign operations whose functional currency is not the U.S. dollar, the assets and liabilities are translated into U.S. dollars at current exchange rates. Resulting translation adjustments are reflected as Other Comprehensive Income (Loss). Revenue and expenses are translated at average exchange rates for the period. Transaction gains and losses that arise from exchange rate fluctuations on transactions denominated in a currency other than the functional currency are charged to operations as incurred.
Advertising Cost, Policy, Expensed Advertising Cost [Policy Text Block]	Advertising Costs— The Company expenses advertising costs as they are incurred. Advertising expense for the years ended December 31, 2018, 2017 and 2016 was $26.7 million , $35.3 million and $30.5 million , respectively.
Income Tax, Policy [Policy Text Block]	Income Taxes— The Company recognizes deferred taxes by the asset and liability method. Under this method, deferred income taxes are recognized for differences between the financial statement and tax bases of assets and liabilities at enacted statutory tax rates in effect for the years 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. The primary sources of temporary differences are stock-based compensation, amortization and impairment of intangible assets, and depreciation of fixed assets.
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	Stock-Based Compensation— The Company has a plan to grant equity awards to certain employees and directors of the Company and its subsidiaries. See Note 13.
Fair Value Measurement, Policy [Policy Text Block]	Fair Value of Financial Instruments— The carrying amounts reported in the consolidated balance sheets for cash, accounts receivable, and accounts payable and accrued expenses approximate their fair values. The Company’s long-term debt consists of borrowings under its credit facility. See Note 5 for fair value disclosures.
Unusual Risks and Uncertainties [Table Text Block]	Risks and Uncertainties— The Company is subject to the risks, expenses and uncertainties frequently encountered by companies in the rapidly evolving markets for online products and services. These risks include the failure to develop and extend the Company’s online service brands, the rejection of the Company’s services by consumers, vendors and/or advertisers, the inability of the Company to maintain and increase the levels of traffic on its online services, as well as other risks and uncertainties. In the event that the Company does not successfully execute its business plan, certain assets may not be recoverable.
Use of Estimates, Policy [Policy Text Block]	Use of Estimates— The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities as of the date of the financial statements, and reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. DHI’s significant estimates include the useful lives and valuation of fixed assets and intangible assets, goodwill, the income tax valuation allowance, and the assumptions used to value the Performance-Based Restricted Stock Units (“PSUs”) of the Company.
Earnings Per Share, Policy [Policy Text Block]	Earnings (Loss) per Share— The Company follows the Earnings Per Share topic of the FASB ASC in computing earnings per share (“EPS”). Basic EPS is calculated by dividing net income (loss) by the weighted average number of shares outstanding. When the effects are dilutive, diluted earnings (loss) per share is calculated using the weighted average number of shares outstanding, and the dilutive effect of stock-based compensation awards as determined under the treasury stock method. Certain stock awards were excluded from the computation of diluted (loss) earnings per share due to their anti-dilutive effect. See Note 17.
New Accounting Pronouncements, Policy [Policy Text Block]	New Accounting Pronouncements— In May 2014, FASB issued ASU No. 2014-09 ("Topic 606"), Revenue from Contracts with Customers. Topic 606 supersedes the revenue recognition requirements in Accounting Standards Codification Topic 605, Revenue Recognition, and requires entities to measure and recognize revenue and the related cash flows it expects to be entitled for the transfer of promised goods or services to customers and requires an entity to recognize the incremental costs of obtaining a contract with a customer as an asset if the entity expects to recover those costs over time. Topic 606 became effective for reporting periods beginning after December 15, 2017. Topic 606 provides companies with two implementation methods. Companies can choose to apply the standard retrospectively to each prior reporting period presented (full retrospective application) or retrospectively with the cumulative effect of initially applying the standard as an adjustment to the opening balance of retained earnings of the annual reporting period that includes the date of initial application (modified retrospective application). The Company has chosen the modified retrospective application method and has implement Topic 606 effective January 1, 2018. The Company has determined that the January 1, 2018 cumulative effect to its revenue streams was an increase of approximately $0.2 million to deferred revenues, and the cumulative effect to its contract acquisition costs was an increase to contract acquisition cost assets of approximately $6.1 million , with a net after tax increase to retained earnings of approximately $4.5 million . The cumulative impact on contract acquisition costs was computed based on contracts in force as of December 31, 2017 using average commission rates on both new business sales to be amortized over approximately two years and the remaining sales contracts to be amortized over approximately one year. See Note 3 to the Notes to the Consolidated Financial Statements. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. The new standard aims to improve existing U.S. GAAP and will change certain aspects of accounting for equity investments, financial instruments, financial liabilities, and presentation and related disclosures. The updated standard became effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The Company adopted the new standard in the first quarter of 2018, and has determined the adoption did not have material impact on its consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases . The new standard has requirements on how to account for leases by both the lessee and the lessor and adds clarification for what constitutes a lease, among other items. The updated standard becomes effective for fiscal years beginning after December 15, 2018 and interim periods the following year, with early adoption permitted. The new standard must be applied using a modified retrospective transition. In July 2018, the FASB issued updated guidance which allows an additional transition method to adopt the new standard at the adoption date, as compared to the beginning of the earliest period presented, and recognize a cumulative-effect adjustment to the beginning balance of retained earnings in the period of adoption. DHI has implemented the new standard effective January 1, 2019 and has elected to recognize a cumulative effect adjustment to the beginning balance of retained earnings in the period of adoption. Adoption of this standard has resulted in a right-of-use asset of approximately $16 to $18 million and a related lease liability of approximately $17 to $19 million being established on the Company's balance sheet, with no material cumulative-effect adjustment to retained earnings. The Company has implemented processes and tools to assist in the ongoing lease data collection and analysis, and has updated accounting policies and internal controls as a result of adopting this standard. In March 2016, the FASB issued ASU No. 2016-09, Improvements to Employee Share-Based Payment Accounting . The Company adopted the standard during the three months ended March 31, 2017. The new standard requires all income tax effects of awards to be recognized in the income statement when the awards vest or are settled, rather than in additional paid-in capital. Accordingly, the new standard eliminates the requirement to reclassify excess tax benefits from operating activities to financing activities in the statement of cash flows. Additionally, the Company can now make a policy election to account for forfeitures as they occur. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement were applied prospectively. The tax effect of awards vested resulted in income tax expense of $1.4 million during the twelve months ended December 31, 2017. The Company recast 2016 cash flows to reflect the excess tax benefit as an operating activity, resulting in a reclassification of $0.4 million from “Excess tax benefit over book expense from stock based compensation” to “Income taxes receivable/payable” on the Consolidated Statements of Cash Flows. The Company will record forfeitures as they occur, rather than estimating in advance. On January 1, 2017, under the modified retrospective transition method as required by the standard, the Company recorded a cumulative-effect adjustment of $0.3 million to decrease accumulated earnings and increase additional paid-in capital to remove estimated forfeitures on all outstanding equity awards after December 31, 2016. In January 2017, the FASB issued ASU No. 2017-04, Intangibles-Goodwill and Other . The new standard eliminates Step 2 from the goodwill impairment test and requires the Company to compare the fair value of a reporting unit with its carrying amount. The Company should recognize an impairment charge for the amount by which the carrying amount exceeds the fair value. The standard is effective for fiscal years beginning after December 15, 2019, with early adoption permitted. Accordingly, the Company has adopted the new standard during the year ended December 31, 2017, which did not have a material impact on the consolidated financial statements. In August 2018, the FASB issued ASU No. 2018-15, Intangibles-Goodwill and Other-Internal-Use Software: Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract. The new standard requires entities that are customers in cloud computing arrangements to defer implementation costs if they would be capitalized by the entity in software licensing arrangements under the internal-use software guidance. ASU No. 2018-15 is effective for fiscal years beginning after December 15, 2019 and interim periods within those years and early adoption is permitted. The amendments allow either a retrospective or prospective approach to all implementation costs incurred after adoption. The Company is evaluating the expected impact of this standard on its consolidated financial statements.

SIGNIFCANT ACCOUNTING POLICIE_3

SIGNIFCANT ACCOUNTING POLICIES (Tables)	12 Months Ended
	Dec. 31, 2018
SUPPLEMENTAL CASH FLOWS [Abstract]
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	The supplemental disclosures to the accompanying consolidated statements of cash flows are as follows (in thousands): 2018 2017 2016 Supplemental cash flow information: Interest paid $ 1,807 $ 3,254 $ 3,256 Taxes paid 2,634 4,697 9,096 Non-cash investing and financing activities: Capital expenditures on fixed assets included in accounts payable and accrued expenses 223 63 201

FIXED ASSETS (Tables)

FIXED ASSETS (Tables)	12 Months Ended
	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Table Text Block]	Fixed assets, net consist of the following as of December 31, 2018 and 2017 (in thousands): 2018 2017 Computer equipment and software $ 8,954 $ 13,588 Furniture and fixtures 2,809 3,093 Leasehold improvements 2,890 3,199 Capitalized development costs 26,919 21,824 41,572 41,704 Less: Accumulated depreciation and amortization (25,682 ) (25,557 ) Fixed assets, net $ 15,890 $ 16,147

ACQUIRED INTANGIBLE ASSETS, N_2

ACQUIRED INTANGIBLE ASSETS, NET (Tables)	12 Months Ended
	Dec. 31, 2017
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]	Below is a summary of the major acquired intangible assets (in thousands) as of December 31, 2017: As of and for the year ended December 31, 2017 Total Cost Accumulated Amortization Foreign Currency Translation Adjustment Acquired Intangible Assets, Net Technology $ 4,561 $ (3,930 ) $ (631 ) $ — Trademarks and brand names—Dice 39,000 — — 39,000 Trademarks and brand names—Other 11,103 (7,260 ) (2,185 ) 1,658 Customer lists 12,887 (5,696 ) (2,112 ) 5,079 Candidate and content database 8,857 (8,354 ) (503 ) — Acquired intangible assets, net $ 76,408 $ (25,240 ) $ (5,431 ) $ 45,737 During the fourth quarter of 2017, the Company disposed of $4.6 million of fully amortized acquired intangible assets from the sale of Health eCareers (sold December 4, 2017). During the first quarter of 2017 and the second quarter of 2016, the Company retired $26.7 million and $44.1 million , respectively, of fully amortized acquired intangible assets

INDEBTEDNESS (Tables)

INDEBTEDNESS (Tables)	12 Months Ended
	Dec. 31, 2018
Debt Instrument [Line Items]
Schedule of Long-term Debt	The amounts borrowed as of December 31, 2018 and 2017 are as follows (dollars in thousands): December 31, December 31, Amounts borrowed: Revolving credit facility $ 18,000 $ 42,000 Less: deferred financing costs, net of accumulated amortization of $25 and $1,529 (712 ) (550 ) Total borrowed $ 17,288 $ 41,450 Available to be borrowed under revolving facility $ 72,000 $ 108,000 Interest rates: LIBOR rate loans: Interest margin 1.75 % 2.25 % Actual interest rates 4.25 % 3.88 %

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Tables)	12 Months Ended
	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Lease Payments	The Company leases equipment and office space under operating leases expiring at various dates through December 2026. Future minimum lease payments under non-cancellable operating leases as of December 31, 2018 are as follows (in thousands): 2019 $ 4,244 2020 3,710 2021 3,097 2022 2,540 2023 2,300 2024 and thereafter 4,524 Total minimum payments $ 20,415

EQUITY TRANSACTIONS (Tables)

EQUITY TRANSACTIONS (Tables)	12 Months Ended
	Dec. 31, 2018
Equity, Class of Treasury Stock [Line Items]
Class of Treasury Stock [Table Text Block]	The following table summarizes the Stock Repurchase Plans approved by the Board of Directors: VI VII Approval Date December 2015 May 2018 Authorized Repurchase Amount of Common Stock $50 million $7 million Effective Dates December 2015 to December 2016 May 2018 to May 2019
Schedule of Repurchase Agreements [Table Text Block]	During the years ended December 31, 2018 , 2017 and 2016 purchases of the Company’s common stock pursuant to Stock Repurchase Plans were as follows: Period Total Number of Shares Purchased Average Price Paid per Share Approximate Dollar Value of Shares Purchased Year Ended December 31, 2018 1,086,420 $ 1.82 $ 1,977,483 Year Ended December 31, 2017 — $ — $ — Year Ended December 31, 2016 3,946,396 $ 7.27 $ 28,709,000

COMPREHENSIVE INCOME (Tables)

COMPREHENSIVE INCOME (Tables)	12 Months Ended
	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	Accumulated other comprehensive income (loss), net consists of the following components, net of tax (in thousands): Year Ended December 31, 2018 2017 2016 Foreign currency translation: Balance at beginning of year $ (27,330 ) $ (32,276 ) $ (20,468 ) Translation adjustments (3,906 ) 4,946 (11,808 ) Balance at end of year $ (31,236 ) $ (27,330 ) $ (32,276 )

DISPOSITION RELATED AND OTHER_2

DISPOSITION RELATED AND OTHER COSTS (Tables)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Costs [Table Text Block]	The following table displays a roll forward of the disposition related and other costs and related liability balances (in thousands): Accrual at December 31, 2017 Expense Cash Payments Non-cash Impairment Accrual at December 31, 2018 Severance and retention $ 1,237 $ 3,191 $ (3,339 ) $ — $ 1,089 Professional fees and other costs 825 2,914 (2,468 ) — 1,271 Lease exit and related asset impairment costs — 1,514 (399 ) (168 ) 947 Total disposition related and other costs $ 2,062 $ 7,619 $ (6,206 ) $ (168 ) $ 3,307 Accrual at December 31, 2016 Expense Cash Payments Accrual at December 31, 2017 Severance and retention $ — $ 3,112 $ (1,875 ) $ 1,237 Professional fees — 1,634 (809 ) 825 Total disposition related and other costs $ — $ 4,746 $ (2,684 ) $ 2,062	The following table displays the disposition related and other costs incurred during the year ended December 31, 2016 (in thousands): Severance — Slashdot Media $ 981 Accelerated stock based compensation expense — Slashdot Media 900 Loss on sale of Slashdot Media 639 Severance related to other brands 827 Total $ 3,347

STOCK BASED COMPENSATION (Table

STOCK BASED COMPENSATION (Tables)	12 Months Ended
	Dec. 31, 2018
Equity [Abstract]
Schedule of Status of Options Granted	A summary of the status of options previously granted as of December 31, 2018 , 2017 , and 2016 , and the changes during the periods then ended is presented below: Year Ended December 31, 2018 Options Weighted-Average Exercise Price Aggregate Intrinsic Value Options outstanding at January 1 1,101,875 $ 9.28 $ — Exercised — $ — $ — Forfeited (774,875 ) $ 9.67 — Options outstanding at December 31 327,000 $ 8.35 $ — Exercisable at December 31 327,000 $ 8.35 $ — Year Ended December 31, 2017 Options Weighted-Average Exercise Price Aggregate Intrinsic Value Options outstanding at January 1 1,779,613 $ 8.46 $ 50,869 Exercised (66,188 ) $ 6.08 $ 12,821 Forfeited (611,550 ) $ 7.25 — Options outstanding at December 31 1,101,875 $ 9.28 $ — Exercisable at December 31 1,076,155 $ 9.32 $ — Options expected to Vest at December 31 25,720 $ 7.43 Year Ended December 31, 2016 Options Weighted-Average Exercise Price Aggregate Intrinsic Value Options outstanding at January 1 2,673,512 $ 7.46 $ 5,485,248 Exercised (641,710 ) $ 4.37 $ 2,209,260 Forfeited (252,189 ) $ 8.20 — Options outstanding at December 31 1,779,613 $ 8.46 $ 50,869 Exercisable at December 31 1,552,642 $ 8.52 $ 50,869
Schedule of Exercise Price Range	he following table summarizes information about options outstanding as of December 31, 2018 : Options Outstanding Options Exercisable Exercise Price Number Outstanding Weighted- Average Remaining Contractual Life Number Exercisable (in years) $ 7.00 - $ 7.99 155,000 2.1 155,000 $ 8.00 - $ 8.99 92,000 0.8 92,000 $ 9.00 - $ 9.99 80,000 1.1 80,000 327,000 327,000
Performance Stock Units [Member]
Equity [Abstract]
Schedule of Nonvested Share Activity	A summary of the status of PSUs as of December 31, 2018 , 2017, and 2016 and the changes during the periods then ended is presented below: Year Ended December 31, 2018 2017 2016 Shares Weighted- Average Fair Value at Grant Date Shares Weighted- Average Fair Value at Grant Date Shares Weighted- Average Fair Value at Grant Date Non-vested at beginning of the period 760,003 $ 6.92 580,004 $ 8.02 415,000 $ 9.25 Granted 750,000 $ 1.58 397,500 $ 5.38 417,500 $ 7.24 Forfeited (255,003 ) $ 8.27 (217,501 ) $ 7.04 (98,751 ) $ 8.17 Vested — $ — — $ — (153,745 ) $ 9.13 Non-vested at end of period 1,255,000 $ 3.45 760,003 $ 6.92 580,004 $ 8.02
Schedule of Valuation Assumptions	The fair value of PSUs measured using the Monte Carlo pricing model utilized the following assumptions: Year Ended December 31, 2017 2016 Weighted average fair value of PSUs granted $ 5.38 $ 7.24 Dividend yield of DHI Group, Inc. stock — % — % Dividend yield of Russell 2000 Index 1.4 % 1.7 % Risk free interest rate 1.5 % 0.9 % Volatility of DHI Group, Inc. stock 41.0 % 33.5 % Volatility of Russell 2000 Index 16.7 % 16.7 %
Restricted Stock Units (RSUs) [Member]
Equity [Abstract]
Schedule of Nonvested Share Activity	A summary of the status of restricted stock awards as of December 31, 2018 , 2017 , and 2016 and the changes during the periods then ended is presented below: Year Ended December 31, 2018 2017 2016 Shares Weighted- Average Fair Value at Grant Date Shares Weighted- Average Fair Value at Grant Date Shares Weighted- Average Fair Value at Grant Date Non-vested at beginning of the period 2,393,257 $ 5.48 2,226,375 $ 7.87 2,122,225 $ 8.54 Granted 4,087,342 $ 1.68 1,724,500 $ 4.05 1,302,375 $ 7.33 Forfeited (439,750 ) $ 4.20 (655,000 ) $ 6.54 (327,750 ) $ 8.17 Vested (1,521,917 ) $ 5.03 (902,618 ) $ 7.89 (870,475 ) $ 8.58 Non-vested at end of period 4,518,932 $ 2.32 2,393,257 $ 5.48 2,226,375 $ 7.87

INCOME TAXES (Tables)

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	Deferred tax assets (liabilities) included in the balance sheet as of December 31, 2018 and 2017 are as follows (in thousands): 2018 2017 Deferred tax assets: Net operating loss carryforward $ 71 $ 168 Capital loss carryforward 5,263 — Allowance for doubtful accounts 145 272 Provision for accrued expenses and other, net 1,621 1,300 Stock based compensation 2,603 3,770 Deferred revenue 537 920 Tax credit carryforward 272 — 10,512 6,430 Less valuation allowance 5,305 224 Deferred tax asset, net of valuation allowance 5,207 6,206 Deferred tax liabilities: Acquired intangibles (10,374 ) (10,933 ) Depreciation of fixed assets (3,291 ) (3,049 ) Capitalized contract costs (1,850 ) — Deferred tax liabilities (15,515 ) (13,982 ) Net deferred tax liability $ (10,308 ) $ (7,776 ) Recognized in Consolidated Balance Sheets: Deferred tax asset 136 469 Deferred tax liability (10,444 ) (8,245 ) Net deferred tax liability $ (10,308 ) $ (7,776 )
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	Tax expense (benefit) for the years ended December 31, 2018 , 2017 and 2016 is as follows (in thousands): 2018 2017 2016 Current income tax expense (benefit): Federal $ (1,299 ) $ 1,984 $ 5,048 State (119 ) (285 ) 931 Foreign 1,570 1,504 2,259 Current income tax expense 152 3,203 8,238 Deferred income tax expense (benefit): Federal 1,387 (207 ) (891 ) State 104 329 192 Foreign 785 94 (2,260 ) Deferred income tax expense (benefit) 2,276 216 (2,959 ) Income tax expense $ 2,428 $ 3,419 $ 5,279
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	A reconciliation between the tax expense at the federal statutory rate and the reported income tax expense is summarized as follows: Year Ended December 31, 2018 2017 2016 Federal statutory rate $ 2,016 $ 6,789 $ (42 ) Gain (loss) on sale of businesses (6,111 ) (1,571 ) — Stock-based compensation 2,112 1,414 — Nondeductible impairment — — 5,287 State taxes, net of federal effect (38 ) 35 756 Difference between foreign and U.S. rates (102 ) (1,054 ) 297 Change in accrual for unrecognized tax benefits (1,179 ) 1,003 (923 ) U.S. tax on global intangible low-taxed income, net of credits 229 — — Executive compensation 126 — — Currency translation gains 219 — — Gross tax on foreign dividend — 275 5,084 Foreign tax credits — (275 ) (4,244 ) U.S. transition tax on foreign earnings 368 2,962 — Federal rate change impact on deferred tax liabilities — (3,281 ) — Research and development tax credits (481 ) (1,764 ) (173 ) Change in valuation allowances 5,117 (780 ) (713 ) Other 152 (334 ) (50 ) Income tax expense $ 2,428 $ 3,419 $ 5,279 Effective tax rate 25.3 % 17.6 % (4,436.1 )%
Summary of Positions for which Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Table Text Block]	Following is a reconciliation of the amounts of unrecognized tax benefits, net of tax and excluding interest and penalties, for the years ended December 31, 2018 , 2017 and 2016 (in thousands): 2018 2017 2016 Unrecognized tax benefits—beginning of period $ 2,539 $ 2,153 $ 2,989 Increases in tax positions related to current year 330 278 117 Increases in tax positions related to prior year — 646 — Decreases in tax positions related to prior year (9 ) — (43 ) Settlements with taxing authorities (838 ) — — Lapse of statute of limitations (600 ) (538 ) (910 ) Unrecognized tax benefits—end of period $ 1,422 $ 2,539 $ 2,153

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2018
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	The following table shows the segment information (in thousands): 2018 2017 2016 By Segment: Revenues: Tech-focused $ 152,258 $ 158,398 $ 170,599 Healthcare — 24,354 27,066 Corporate & Other 9,312 25,198 29,305 Total revenues $ 161,570 $ 207,950 $ 226,970 Depreciation: Tech-focused $ 8,942 $ 6,868 $ 7,060 Healthcare — 1,625 2,089 Corporate & Other 338 1,259 700 Total depreciation $ 9,280 9,752 $ 9,849 Amortization: Tech-focused $ — $ 132 $ 1,923 Healthcare — 596 835 Corporate & Other 482 1,410 4,029 Total amortization $ 482 $ 2,138 $ 6,787 Operating income (loss): Tech-focused $ 26,851 $ 38,462 $ 54,066 Healthcare — (1,507 ) (929 ) Corporate & Other (15,159 ) (14,090 ) (49,746 ) Operating income 11,692 22,865 3,391 Interest expense (2,054 ) (3,445 ) (3,481 ) Other expense (36 ) (23 ) (29 ) Income (loss) before income taxes $ 9,602 $ 19,397 $ (119 ) Capital expenditures: Tech-focused $ 10,060 $ 10,481 $ 7,545 Healthcare — 1,160 1,113 Corporate & Other 221 1,914 2,756 Total capital expenditures $ 10,281 $ 13,555 $ 11,414 2018 2017 2016 By Geography: Revenues: United States $ 121,097 $ 154,406 $ 167,855 United Kingdom 15,665 22,247 23,969 EMEA, APAC and Canada (1) 24,808 31,297 35,146 Non-United States 40,473 53,544 59,115 Total revenues $ 161,570 $ 207,950 $ 226,970 (1) Europe (excluding United Kingdom), the Middle East and Africa (“EMEA”) and Asia-Pacific (“APAC”) December 31, December 31, December 31, Total assets: Tech-focused $ 251,860 $ 266,390 $ 263,462 Healthcare — — 14,375 Corporate & Other 6,525 29,328 32,258 Total assets $ 258,385 $ 295,718 $ 310,095
Schedule of Goodwill [Table Text Block]	The following table shows the carrying amount of goodwill by segment as of December 31, 2017 and 2018 and the changes in goodwill for the years ended (in thousands): Tech-focused Healthcare Corporate & Other Total Goodwill at January 1, 2017 $ 152,162 $ 6,269 $ 13,314 $ 171,745 Foreign currency translation adjustment 5,315 — — 5,315 Sale of business — (6,269 ) — (6,269 ) Goodwill at December 31, 2017 $ 157,477 $ — $ 13,314 $ 170,791 Foreign currency translation adjustment (3,503 ) — — (3,503 ) Sale of business — — (13,314 ) (13,314 ) Goodwill at December 31, 2018 $ 153,974 $ — $ — $ 153,974 Goodwill at December 31, 2018 Goodwill $ 153,974 $ — $ — $ 153,974 Accumulated impairment losses — — — — $ 153,974 $ — $ — $ 153,974

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	12 Months Ended
	Dec. 31, 2018
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following is a calculation of basic and diluted earnings per share and weighted-average shares outstanding (in thousands, except per share amounts): 2018 2017 2016 Income (loss) from continuing operations—basic and diluted $ 7,174 $ 15,978 $ (5,398 ) Weighted-average shares outstanding—basic 48,520 47,908 48,319 Add shares issuable from stock-based awards 1,085 322 — Weighted-average shares outstanding—diluted 49,605 48,230 48,319 Basic earnings (loss) per share $ 0.15 $ 0.33 $ (0.11 ) Diluted earnings (loss) per share $ 0.14 $ 0.33 $ (0.11 )

QUARTERLY RESULTS OF OPERATIO_2

QUARTERLY RESULTS OF OPERATIONS (Tables)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information [Table Text Block]	The following is a summary of unaudited quarterly results of operations for 2018 and 2017: For the Three Months Ended March 31 [1] June 30 [2] September 30 [3] December 31 (in thousands, except per share amounts) 2018 Revenues $ 43,071 $ 41,595 $ 38,917 $ 37,987 Total operating expenses 40,861 39,686 37,085 35,615 Other operating income (loss) 4,639 (839 ) (365 ) (66 ) Operating income $ 6,849 $ 1,070 $ 1,467 $ 2,306 Net income (loss) $ 3,503 $ (205 ) $ 930 $ 2,946 Basic earnings per common share $ 0.07 $ — $ 0.02 $ 0.06 [4] Diluted earnings per common share $ 0.07 $ — $ 0.02 $ 0.06 [4] 2017 Revenues $ 52,190 $ 52,400 $ 52,424 $ 50,936 Total operating expenses 47,895 48,398 49,886 48,898 Other Operating Income $ — $ — $ — $ 9,992 [5] Operating income (loss) $ 4,295 $ 4,002 $ 2,538 $ 12,030 Net income (loss) $ 1,340 $ 1,822 $ 1,058 $ 11,758 Basic earnings (loss) per common share $ 0.03 $ 0.04 $ 0.02 $ 0.24 [4] Diluted earnings (loss) per common share $ 0.03 $ 0.04 $ 0.02 $ 0.24 [4] [1] Majority ownership of the BioSpace business was transferred to BioSpace management on January 31, 2018 and the RigLogix portion of the Rigzone business was sold on February 20, 2018. [2] The Hcareers business was sold on May 22, 2018. [3] Majority ownership of the remaining Rigzone business was transferred to Rigzone management and Dice Europe ceased operations on August 31, 2018. [4] The sum of the quarter may not equal the full year amount. [5] Includes gain on sale of Health eCareers of $6.7 million and proceeds from restitution award of $3.3 million related to the OilPro legal matter.

CONSOLIDATED VALUATION AND QU_2

CONSOLIDATED VALUATION AND QUALIFYING ACCOUNTS (Tables)	12 Months Ended
	Dec. 31, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Summary of Valuation Allowance [Table Text Block]	Column A Column B Column C Column D Column E Balance at Beginning of Period Charged to Income Deductions Balance at End of Period Description Reserves Deducted From Assets to Which They Apply: Reserve for uncollectible accounts receivable: Year ended December 31, 2016 $ 2,945 $ 1,435 $ (1,199 ) $ 3,181 Year ended December 31, 2017 3,181 1,556 (3,049 ) 1,688 Year ended December 31, 2018 1,688 1,069 (2,110 ) 647 Deferred tax valuation allowance: Year ended December 31, 2016 $ 1,746 $ (713 ) $ — $ 1,033 Year ended December 31, 2017 (1) 1,033 (809 ) — 224 Year ended December 31, 2018 (2) 224 5,081 — 5,305 ____________________ (1) Reduction primarily due to utilization of foreign tax credits. (2) Increase primarily due to valuation allowance for tax capital loss carryforward resulting from Rigzone sale. See notes to the DHI Group, Inc. consolidated financial statements included elsewhere herein.

REVENUE RECOGNITION (Tables)

REVENUE RECOGNITION (Tables)	12 Months Ended
	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table provides information about disaggregated revenue by brand and includes a reconciliation of the disaggregated revenue with reportable segments (in thousands): For the Year Ended December 31, 2018 Tech-focused Corporate & Other Total Dice (1) $ 94,438 $ — $ 94,438 ClearanceJobs 21,086 — 21,086 Dice Europe (2) 2,976 — 2,976 eFinancial Careers 33,758 — 33,758 Hcareers (3) — 5,329 5,329 Rigzone (3) — 3,771 3,771 BioSpace (3) — 212 212 Total $ 152,258 $ 9,312 $ 161,570 (1) Includes Dice U.S. and Targeted Job Fairs. (2) The Company ceased Dice Europe operations on August 31, 2018. (3) The Company sold the RigLogix portion of the Rigzone business on February 20, 2018 and transferred majority ownership of the remaining Rigzone business to Rigzone management on August 31, 2018. Hcareers was sold on May 22, 2018 and the Company transferred majority ownership of BioSpace to BioSpace management on January 31, 2018.
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction	Under the guidance of Topic 606, the following table includes estimated revenue expected to be recognized in future periods related to performance obligations that are unsatisfied or partially unsatisfied at the end of the reporting period (in thousands): 2019 2020 2021 Total Tech-focused $ 54,723 $ 1,348 $ 15 $ 56,086
Schedule of New Accounting Pronouncements and Changes in Accounting Principles	In accordance with Topic 606, the impact of adoption to our consolidated statements of operations was as follows: Year Ended December 31, 2018 (in thousand, except per share amounts As Reported Balance Without Adoption of Topic 606 Effect of Change-Higher (Lower) Revenues $ 161,570 $ 161,457 $ 113 Operating expenses $ 153,247 $ 156,129 $ (2,882 ) Gain on sale of businesses $ 3,369 $ 4,568 $ (1,199 ) Operating income $ 11,692 $ 9,896 $ 1,796 Net income $ 7,174 $ 5,827 $ 1,347 Basic earnings per share $ 0.15 $ 0.12 $ 0.03 Diluted earnings per share $ 0.14 $ 0.12 $ 0.02 In accordance with Topic 606, the impact of adoption to our consolidated balance sheets was as follows: As of December 31, 2018 (in thousands) As reported Balance Without Adoption of Topic 606 Effect of Change-Higher (Lower) Assets Capitalized contract assets $ 7,939 $ — $ 7,939 Total Assets $ 258,385 $ 250,446 $ 7,939 Liabilities & Stockholders Equity Deferred revenue $ 54,723 $ 54,610 $ 113 Deferred income taxes $ 10,444 $ 8,450 $ 1,994 Total liabilities $ 113,030 $ 110,923 $ 2,107 Stockholders equity Accumulated earnings $ 71,435 $ 65,603 $ 5,832 Total stockholders' equity $ 145,355 $ 139,523 $ 5,832 Total liabilities & stockholders' equity $ 258,385 $ 250,446 $ 7,939 In accordance with Topic 606, the impact of adoption to our consolidated statements of cash flows was as follows: Year Ended December 31, 2018 As Reported Balance Without Adoption of Topic 606 Effect of Change-Higher (Lower) Cash flows from operating activities: Net Income $ 7,174 $ 5,827 $ 1,347 Adjustments to reconcile net income to net cash flows from operating activities: Deferred income taxes $ 2,699 $ 1,896 $ 803 Gain on sale of businesses, net $ (3,369 ) $ (4,568 ) $ 1,199 Capitalized contract costs $ (3,236 ) $ — $ (3,236 ) Deferred revenue $ (18,866 ) $ (18,753 ) $ (113 ) Net cash flows from operating activities $ 14,918 $ 14,918 $ —
Revenue from Contract with Customer [Text Block]	The following table provides information about opening and closing balances of receivables and contract liabilities from contracts with customers as required under Topic 606 (in thousands): As of December 31, 2018 As of January 1, 2018 Receivables $ 22,850 $ 38,769 Short-term contract liabilities (deferred revenue) 54,723 83,646 Long-term contract liabilities (deferred revenue) 1,363 — We receive payments from customers based upon contractual billing schedules; accounts receivable is recorded when customers are invoiced per the contractual billing schedules. As the Company's standard payment terms are less than one year, the Company elected the expedient, where applicable. As a result, the Company did not consider the effects of a significant financing component. Contract liabilities include customer billings delivered in advance of performance under the contract, and associated revenue is realized when services are rendered under the contract. Receivables increase due to customer billings and decrease by cash collected from customers along with business divestitures. Included in January 1, 2018 is $4.4 million of receivables related to businesses divested during the year ended December 31, 2018. Contract liabilities increase due to customer billings and are decreased as performance obligations are satisfied under the contracts. Included in January 1, 2018 is $8.4 million of short-term contract liabilities related to the businesses divested during the year ended December 31, 2018. During the year ended December 31, 2018, the Company recognized the following revenues as a result of changes in the contract liability balances in the respective periods (in thousands): Year Ended December 31, 2018 Revenue recognized in the period from: Amounts included in the contract liability at the beginning of the period $ 75,967

SIGNIFCANT ACCOUNTING POLICIE_4

SIGNIFCANT ACCOUNTING POLICIES (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 01, 2019	Aug. 31, 2018	Jan. 31, 2018	Jan. 01, 2018	Jan. 01, 2017
Schedule of Cost-method Investments [Line Items] (Deprecated 2018-01-31)
Revenues	$ 37,987	$ 38,917	$ 41,595	$ 43,071	$ 50,936	$ 52,424	$ 52,400	$ 52,190	$ 161,570	$ 207,950	$ 226,970
Interest in Diluted Shares of Cost Method Investment					2.30%					2.30%
Cost Method Investments, Original Cost					$ 2,000					$ 2,000
Debt Issuance Costs, Net	$ 712				550				$ 712	550
Cost Method Investments					$ 500					$ 500
Interest in Investment	0.00%				10.00%				0.00%	10.00%
Capitalized Contract Cost, Net	$ 7,939				$ 0				$ 7,939	$ 0
Accumulated earnings	71,435				$ 59,776				71,435	59,776
Effective Income Tax Rate Reconciliation, Share-based Compensation, Income Tax Expense, Amount										1,400
Net cash flows from operating activities									14,918	34,409	44,997
Interest Paid, Including Capitalized Interest, Operating and Investing Activities									1,807	3,254	3,256
Advertising Expense									26,700	35,300	30,500
Income Taxes Paid									2,634	4,697	9,096
Capital Expenditures Incurred but Not yet Paid									223	63	$ 201
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Schedule of Cost-method Investments [Line Items] (Deprecated 2018-01-31)
Revenues									113
Capitalized Contract Cost, Net	7,939								7,939
Accumulated earnings	5,832								5,832
Net cash flows from operating activities									0
Accounting Standards Update 2014-09 [Member] | Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Schedule of Cost-method Investments [Line Items] (Deprecated 2018-01-31)
Revenues									200
Capitalized Contract Cost, Net	6,100								6,100
Accumulated earnings	$ 4,500								$ 4,500						$ 4,500
Accounting Standards Update 2016-09, Statutory Tax Withholding Component [Member]
Schedule of Cost-method Investments [Line Items] (Deprecated 2018-01-31)
Net cash flows from operating activities										$ 400
Additional Paid-in Capital [Member] | Accounting Standards Update 2016-09, Forfeiture Rate Component [Member]
Schedule of Cost-method Investments [Line Items] (Deprecated 2018-01-31)
Cumulative Effect of New Accounting Principle in Period of Adoption																$ 300
Biospace [Member]
Schedule of Cost-method Investments [Line Items] (Deprecated 2018-01-31)
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners, Preferred Share Interest														20.00%
Temporary Equity, Liquidation Preference														$ 1,000
Equity Method Investment, Common Share Interest														20.00%
Rigzone [Member]
Schedule of Cost-method Investments [Line Items] (Deprecated 2018-01-31)
Equity Method Investment, Common Share Interest													40.00%
Funding Requirements, Funding Provided In Transfer Of Ownership													$ 400
Subsequent Event [Member] | Minimum [Member] | Accounting Standards Update 2016-02 [Member]
Schedule of Cost-method Investments [Line Items] (Deprecated 2018-01-31)
Operating Lease, Right-of-Use Asset												$ 16,000
Operating Lease, Liability												17,000
Subsequent Event [Member] | Maximum [Member] | Accounting Standards Update 2016-02 [Member]
Schedule of Cost-method Investments [Line Items] (Deprecated 2018-01-31)
Operating Lease, Right-of-Use Asset												18,000
Operating Lease, Liability												$ 19,000

ASSETS HELD FOR SALE (Details)

ASSETS HELD FOR SALE (Details) - USD ($) $ in Thousands	Dec. 04, 2017	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Aug. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (Loss) on Disposition of Business					$ 3,369	$ 6,699	$ 0
Rigzone [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners, Common Stock Interest								40.00%
Proceeds from Divesture of Business, Receivable, Working Capital				$ 4,600
Deferred Revenue				1,200
Proceeds from Divestiture of Businesses				4,200
Divestiture of business selling costs		$ 400		600
Gain (Loss) on Disposition of Business		$ 700
Escrow Deposits Related to Property Sales				400
Biospace [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divesture of Business, Receivable, Working Capital				500
Divestiture of business selling costs				$ 300
Hcareers [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divesture of Business, Receivable, Working Capital			$ 200
Net Cash Provided by (Used in) Discontinued Operations			14,000
Proceeds from Divestiture of Businesses			16,500
Divestiture of business selling costs			1,500
Gain (Loss) on Disposition of Business			800
Escrow Deposits Related to Property Sales			$ 1,700
Health eCareers [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses, Total	$ 15,000
Proceeds from Divesture of Business, Receivable, Working Capital	6,700
Divestiture of business selling costs	600
Escrow Deposits Related to Property Sales	1,500
Other Assets, Current	600
Proceeds from Divestiture of Businesses, Net of Cash Divested	$ 12,900
Slashdot [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses							2,800
Disposal Group, Working Capital Adjustment							400
Divestiture of business selling costs							800
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal							$ 639

FAIR VALUE MEASUREMENTS (Unobse

FAIR VALUE MEASUREMENTS (Unobservable Level 3 Inputs) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of goodwill		$ 15,369	$ 0	$ 0	$ 15,369
Impairment of intangible assets	$ 9,300		$ 0	$ 2,226	$ 9,252

FIXED ASSETS (Details)

FIXED ASSETS (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 41,572	$ 41,704
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(25,682)	(25,557)
Fixed assets, net	15,890	16,147
Computer Equipment and Software [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	8,954	13,588
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	2,809	3,093
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	2,890	3,199
Capitalized Development Costs [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 26,919	$ 21,824

ACQUIRED INTANGIBLE ASSETS, N_3

ACQUIRED INTANGIBLE ASSETS, NET (Summary of Acquired Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired		$ 76,408
Finite-Lived Intangible Assets, Accumulated Amortization		25,240
Finite-Lived Intangible Assets, Translation Adjustments		5,431
Impairment of fixed and intangible assets	$ 0	2,226	$ 9,252
Acquired intangible assets, net	$ 39,000	45,737
Technology Equipment [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired		4,561
Finite-Lived Intangible Assets, Accumulated Amortization		3,930
Finite-Lived Intangible Assets, Translation Adjustments		631
Acquired intangible assets, net		0
Trademarks, Other [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired		11,103
Finite-Lived Intangible Assets, Accumulated Amortization		7,260
Finite-Lived Intangible Assets, Translation Adjustments		2,185
Acquired intangible assets, net		1,658
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired		12,887
Finite-Lived Intangible Assets, Accumulated Amortization		5,696
Finite-Lived Intangible Assets, Translation Adjustments		2,112
Acquired intangible assets, net		5,079
Candidate Database [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired		8,857
Finite-Lived Intangible Assets, Accumulated Amortization		8,354
Finite-Lived Intangible Assets, Translation Adjustments		503
Acquired intangible assets, net		0
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired		39,000
Finite-Lived Intangible Assets, Accumulated Amortization		0
Finite-Lived Intangible Assets, Translation Adjustments		0
Acquired intangible assets, net		$ 39,000

ACQUIRED INTANGIBLE ASSETS, N_4

ACQUIRED INTANGIBLE ASSETS, NET (Narrative) (Details) - USD ($)	3 Months Ended				9 Months Ended	12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Mar. 31, 2017	Jun. 30, 2016	Sep. 30, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Indefinite-lived Intangible Assets Acquired						$ 39,000,000
Impairment of fixed and intangible assets						0	$ 2,226,000	$ 9,252,000
Intangible Assets, Deletions	$ 4,600,000		$ 26,700,000	$ 44,100,000
Impairment of intangible assets		$ 9,300,000				0	$ 2,226,000	$ 9,252,000
Hcareers [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Intangible Assets						12,900,000
Accumulated Depreciation, Depletion and Amortization, Sale or Disposal of Property, Plant and Equipment						$ 6,700,000
Energy [Domain]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment of fixed and intangible assets					$ 9,300,000

INDEBTEDNESS (Details)

INDEBTEDNESS (Details)	12 Months Ended
	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Nov. 30, 2018USD ($)	Aug. 31, 2017USD ($)
Debt Instrument [Line Items]
Ratio of Indebtedness to Net Capital, Pro forma basis	2
restricted payments under the Credit Agreement	$ 5,000,000
Maximum available to be borrowed under revolving facility	140,000,000	$ 250,000,000	$ 90,000,000	$ 150,000,000
Securities Borrowed	18,000,000
Unamortized Debt Issuance Expense	$ 155,000	$ 410,000
London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Interest margin	1.75%	2.25%
Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Interest margin	1.75%	1.75%
Minimum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Interest margin	0.75%	0.75%
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Interest margin	2.50%	2.50%
Maximum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Interest margin	1.50%	1.50%
Borrowings [Member]
Debt Instrument [Line Items]
Ratio of Indebtedness to Net Capital, Pro forma basis	2.5

INDEBTEDNESS (Schedule of Credi

INDEBTEDNESS (Schedule of Credit Agreement) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Revolving credit facility	$ 18,000	$ 42,000
Less: deferred financing costs, net of accumulated amortization of $25 and $1,529	(712)	(550)
Total borrowed	17,288	41,450
Line of Credit Facility, Remaining Borrowing Capacity	$ 72,000	108,000
Accumulated Amortization, Deferred Finance Costs		$ 25	$ 1,529
London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Interest margin	1.75%	2.25%
Actual interest rates	4.25%	3.88%

COMMITMENTS AND CONTINGENCIES_2

COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Mar. 31, 2018
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2,017	$ 4,244
2,018	3,710
2,019	3,097
2,020	2,540
2,021	2,300
2022 and thereafter	4,524
Total minimum payments	20,415
Operating Leases, Rent Expense, Net [Abstract]
Rent expense	$ 3,700	$ 4,900	$ 4,500
Estimated Litigation Liability				$ 1,000

EQUITY TRANSACTIONS (Details)

EQUITY TRANSACTIONS (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Not Settled, Amount	26,337
Treasury Stock, Shares, Acquired	1,086,000	0	3,946,000
Treasury Stock Acquired, Average Cost Per Share	$ 1.82	$ 0	$ 7.27
Treasury Stock, Value, Acquired, Cost Method	$ 1,977,000	$ 0	$ 28,709,000
Stock Repurchase Program, Authorized Amount	$ 7,000,000
Preferred Stock, Shares Authorized	20,000,000	20,000,000
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Liquidation Preference Per Share	$ 2.17
Liabilities	$ 1,000,000
Additional paid-in capital	1,000,000
Stock Repurchase Plan VI [Domain]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount			$ 50,000,000
DHI Group, Inc. Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount	$ 7,000,000

COMPREHENSIVE INCOME (Details)

COMPREHENSIVE INCOME (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ (27,330)
Ending balance	(31,236)	$ (27,330)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(27,330)	(32,276)	$ (20,468)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(3,906)	4,946	(11,808)
Ending balance	$ (31,236)	$ (27,330)	$ (32,276)

DISPOSITION RELATED AND OTHER_3

DISPOSITION RELATED AND OTHER COSTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 1,237	$ 0
Restructuring and Related Cost, Incurred Cost	3,191	3,112
Payments for Restructuring	(3,339)	(1,875)
Restructuring Reserve	1,089	1,237	$ 0
Restructuring Costs and Asset Impairment Charges	0
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	2,062	0
Restructuring and Related Cost, Incurred Cost	7,619	4,746
Payments for Restructuring	(6,206)	(2,684)
Restructuring Reserve	3,307	2,062	0
Restructuring Costs and Asset Impairment Charges	(168)
Professional Fees [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	825	0
Restructuring and Related Cost, Incurred Cost	2,914	1,634
Payments for Restructuring	(2,468)	(809)
Restructuring Reserve	1,271	825	0
Restructuring Costs and Asset Impairment Charges	0
Environmental Exit Costs, Name of Property [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0
Restructuring and Related Cost, Incurred Cost	1,514
Payments for Restructuring	(399)
Restructuring Reserve	947	$ 0
Restructuring Costs and Asset Impairment Charges	$ (168)
Slashdot [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			981
Slashdot [Member] | Special Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			900
Slashdot [Member] | Sale of Subsidiary Gain (Loss) [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			639
Slashdot [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			827
Slashdot [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			$ 3,347

STOCK BASED COMPENSATION (Detai

STOCK BASED COMPENSATION (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			1 year 5 months
Stock based compensation			$ 6,606	$ 8,608	$ 11,145
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		1,750,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	750,000
Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost					$ 900
Unrecognized compensation expense	$ 9,000		$ 9,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term			1 year 5 months
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term			1 year 5 months
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Accelerated Vesting, Number					130,375
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Accelerated Vesting, Number					24,001
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term			1 year 5 months

STOCK BASED COMPENSATION (Statu

STOCK BASED COMPENSATION (Status of Restricted Stock) (Details) - $ / shares	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Nonvested, Number of Shares [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	750,000
Performance Stock Units [Member]
Nonvested, Number of Shares [Roll Forward]
Non-vested at beginning of period, Shares		760,003	580,004	415,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		750,000	397,500	417,500
Forfeited during the period, Shares		(255,003)	(217,501)	(98,751)
Vested during the period, Shares		0	0	(153,745)
Non-vested at end of period, Shares	505,000	505,000	760,003	580,004
Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Non-vested at beginning of the period, Weighted Average Grant Date Fair Value		$ 6.92	$ 8.02	$ 9.25
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		1.58	5.38	7.24
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value		8.27	7.04	8.17
Vested during the period, Weighted Average Grant Date Fair Value		0	0	9.13
Non-vested at end of period, Weighted Average Grant Date Fair Value	$ 3.45	$ 3.45	$ 6.92	$ 8.02
Restricted Stock [Member]
Nonvested, Number of Shares [Roll Forward]
Non-vested at beginning of period, Shares		2,393,257	2,226,375	2,122,225
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		4,087,342	1,724,500	1,302,375
Forfeited during the period, Shares		(439,750)	(655,000)	(327,750)
Vested during the period, Shares		(1,521,917)	(902,618)	(870,475)
Non-vested at end of period, Shares	4,518,932	4,518,932	2,393,257	2,226,375
Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Non-vested at beginning of the period, Weighted Average Grant Date Fair Value		$ 5.48	$ 7.87	$ 8.54
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		1.68	4.05	7.33
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value		4.20	6.54	8.17
Vested during the period, Weighted Average Grant Date Fair Value		5.03	7.89	8.58
Non-vested at end of period, Weighted Average Grant Date Fair Value	$ 2.32	$ 2.32	$ 5.48	$ 7.87

STOCK BASED COMPENSATION (Fair

STOCK BASED COMPENSATION (Fair Value Assumptions) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
The weighted average fair value of options granted		$ 5.38	$ 7.24
Weighted average risk free interest rate		1.50%	0.90%
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	1 year 5 months
DHI Group, Inc. Stock [Member] | Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield		0.00%	0.00%
Weighted average expected volatility		41.00%	33.50%
Russell 2000 Index [Member] | Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield		1.40%	1.70%
Weighted average expected volatility		16.70%	16.70%

STOCK BASED COMPENSATION (Summa

STOCK BASED COMPENSATION (Summary of Status of Options) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	1,750,000
Options, Outstanding [Roll Forward]
Options outstanding at beginning of period, Options		1,101,875	1,779,613	2,673,512
Exercised, Options		0	(66,188)	(641,710)
Forfeited, Options		(774,875)	(611,550)	(252,189)
Options outstanding at end of period, Options		327,000	1,101,875	1,779,613
Exercisable at end of period, Options		327,000	1,076,155	1,552,642
Weighted Average Exercise Price [Roll Forward]
Options outstanding at beginning of period, Weighted Average Exercise Price		$ 9.28	$ 8.46	$ 7.46
Exercised, Weighted Average Exercise Price		0	6.08	4.37
Forfeited, Weighted Average Exercise Price		9.67	7.25	8.20
Options outstanding at end of period, Weighted Average Exercise Price		8.35	9.28	8.46
Exercisable at end of period, Weighted Average Exercise Price		$ 8.35	$ 9.32	$ 8.52
Aggregate Instrinsic Value [Abstract]
Options outstanding at beginning of period, Aggregate Intrinsic Value		$ 0	$ 50,869	$ 5,485,248
Exercised, Aggregate Intrinsic Value		0	12,821	2,209,260
Options outstanding at end of period, Aggregate Intrinsic Value		0	0	50,869
Exercisable at end of period, Aggregate Intrinsic Value		$ 0	$ 0	$ 50,869
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number			25,720
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price			$ 7.43

STOCK BASED COMPENSATION (Sum_2

STOCK BASED COMPENSATION (Summary of Options Outstanding) (Details)	12 Months Ended
	Dec. 31, 2018$ / sharesshares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options Outstanding | shares	327,000
Weighted Average Remaining Contractual Life	1 year 5 months
Number of Exercisable Options | shares	327,000
$7.00 - $7.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price, Lower Limit | $ / shares	$ 7
Exercise Price, Upper Limit | $ / shares	$ 7.99
Number of Options Outstanding | shares	155,000
Weighted Average Remaining Contractual Life	2 years 1 month
Number of Exercisable Options | shares	155,000
$8.00 - $8.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price, Lower Limit | $ / shares	$ 8
Exercise Price, Upper Limit | $ / shares	$ 8.99
Number of Options Outstanding | shares	92,000
Weighted Average Remaining Contractual Life	8 months
Number of Exercisable Options | shares	92,000
$9.00 - $9.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price, Lower Limit | $ / shares	$ 9
Exercise Price, Upper Limit | $ / shares	$ 9.99
Number of Options Outstanding | shares	80,000
Weighted Average Remaining Contractual Life	1 year 1 month
Number of Exercisable Options | shares	80,000
$10.00 - $14.50
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price, Lower Limit | $ / shares	$ 10
Exercise Price, Upper Limit | $ / shares	$ 14.50
Weighted Average Remaining Contractual Life

STOCK BASED COMPENSATION Stock

STOCK BASED COMPENSATION Stock Options Outstanding (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 8.35	$ 9.28	$ 8.46	$ 7.46
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 0	$ 0	$ 50,869	$ 5,485,248
Exercised, Options	0	(66,188)	(641,710)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	$ 0	$ 6.08	$ 4.37
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 0	$ 12,821	$ 2,209,260
Forfeited, Options	(774,875)	(611,550)	(252,189)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price	$ 9.67	$ 7.25	$ 8.20
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	327,000	1,076,155	1,552,642
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price	$ 8.35	$ 9.32	$ 8.52
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	$ 0	$ 0	$ 50,869
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 2.32	$ 5.48	$ 7.87	$ 8.54

STOCK BASED COMPENSATION Status

STOCK BASED COMPENSATION Status of PSUs (Details) - $ / shares	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	750,000
Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	505,000	505,000	760,003	580,004	415,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 3.45	$ 3.45	$ 6.92	$ 8.02	$ 9.25
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		750,000	397,500	417,500
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 1.58	$ 5.38	$ 7.24
Forfeited during the period, Shares		(255,003)	(217,501)	(98,751)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value		$ 8.27	$ 7.04	$ 8.17
Vested during the period, Shares		0	0	(153,745)
Vested during the period, Weighted Average Grant Date Fair Value		$ 0	$ 0	$ 9.13
Compensation Agreement One [Member] | Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	1,255,000	1,255,000

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Increase (Decrease) in Deferred Liabilities		$ 3,300
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Transition Tax For Accumulated Foreign Earnings, Provisional Liability	$ 2,000	3,000
Components of Deferred Tax Assets and Liabilities [Abstract]
Net operating loss carryforward	71	168
Deferred Tax Assets, Capital Loss Carryforwards	5,263	0
Tax Credit Carryforward, Amount	300	1,400
Allowance for doubtful accounts	145	272
Provision for accrued expenses and other, net	1,621	1,300
Stock based compensation	2,603	3,770
Deferred revenue	537	920
Tax credit carryforward	272	0
Deferred Tax Assets, Gross	10,512	6,430
Less valuation allowance	5,305	224
Deferred tax asset, net of valuation allowance	5,207	6,206
Deferred Tax Liabilities, Intangible Assets	10,374	10,933
Depreciation of fixed assets	(3,291)	(3,049)
Deferred Tax Liabilities, Deferred Expense, Other Capitalized Costs	(1,850)	0
Deferred Tax Liabilities	(15,515)	(13,982)
Deferred Tax Asset	136	469
Deferred tax liability	(10,444)	(8,245)
Net deferred tax liability	(10,308)	(7,776)
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Transition Tax For Accumulated Foreign Earnings, Provisional Income Tax Expense	400	1,600
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, GILTI, Liability Recognized	400
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, GILTI, Tax Credits	200
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, GILTI, Tax Expense	200
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal	(1,299)	1,984	$ 5,048
State	(119)	(285)	931
Foreign	1,570	1,504	2,259
Current Income Tax Expense	152	3,203	8,238
Federal	1,387	(207)	(891)
State	104	329	192
Foreign	785	94	(2,260)
Deferred Income Tax Expense (Benefit)	2,276	216	(2,959)
Income tax expense	2,428	3,419	5,279
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Federal statutory rate	2,016	6,789	(42)
Gain on sale of subsidiary	(6,111)	1,571	0
Stock-based compensation	2,112	1,414	0
Nondeductible impairment	0	0	5,287
Deferred Tax Liabilities, Repatriation Of Earnings			800
State taxes, net of federal effect	(38)	35	756
Difference between foreign and U.S. rates	(102)	(1,054)	297
Change in unrecognized tax benefits	(1,179)	1,003	(923)
Tax on global intangible low-taxed income	229	0	0
Executive compensation	126	0	0
Currency translation gains	219	0	0
Gross tax on foreign dividend	0	275	5,084
Tax credits related to foreign dividend	0	(275)	(4,244)
Tax Cuts and Jobs Act, Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount	368	2,962	0
Federal rate change impact on deferred tax liabilities	0	(3,281)	0
Research and development tax credits	(481)	1,764	173
Change in valuation allowance	5,117	(780)	(713)
Other	$ 152	$ (334)	$ (50)
Effective tax rate	25.30%	17.60%	(4436.10%)
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized Tax Benefits	$ 2,539	$ 2,153	$ 2,989
Increases in tax positions related to current year	330	278	117
Increases in tax positions related to prior year	0	646	0
Decreases in tax positions related to prior year	(9)	0	(43)
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	(838)	0	0
Lapse of statute of limitations	(600)	(538)	(910)
Unrecognized Tax Benefits	1,422	2,539	2,153
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	(61)	(41)	(86)
Unrecognized Tax Benefits, Gross	1,500	2,700	2,900
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	320	400
Goodwill and Intangible Asset Impairment		2,200	24,600
Foreign Earnings Repatriated			16,400
Tax benefit related to foreign tax credit carryforwards			700
Non Deductible Impairment Charge			15,400
Unrecognized Tax Benefits, Period Increase (Decrease)	1,179	(346)	923
Accrual for unrecognized tax benefits	1,680	$ 2,859	$ 2,500
Unrecognized Tax Benefits to be Recognized	$ 200

EMPLOYEE SAVINGS PLAN (Details)

EMPLOYEE SAVINGS PLAN (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Retirement Benefits [Abstract]
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 1,300	$ 1,700	$ 1,700

SEGMENT INFORMATION (Details)

SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended									12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Sep. 30, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Goodwill	$ 153,974				$ 170,791					$ 153,974	$ 170,791	$ 171,745
Revenues	37,987	$ 38,917	$ 41,595	$ 43,071	50,936	$ 52,424	$ 52,400	$ 52,190		161,570	207,950	226,970
Depreciation										9,280	9,752	9,849
Amortization of intangible assets										482	2,138	6,787
Operating income (loss)	2,306	$ 1,467	$ 1,070	$ 6,849	12,030	$ 2,538	$ 4,002	$ 4,295		11,692	22,865	3,391
Interest expense										(2,054)	(3,445)	(3,481)
Other expense										(36)	(23)	(29)
Income (loss) before income taxes										9,602	19,397	(119)
Capital expenditures										10,281	13,555	11,414
Assets	258,385				295,718					258,385	295,718	310,095
Impairment of goodwill									$ 15,369	0	0	15,369
United States [Member]
Segment Reporting Information [Line Items]
Revenues										121,097	154,406	167,855
UNITED KINGDOM
Segment Reporting Information [Line Items]
Revenues										15,665	22,247	23,969
EMEA, APAC and Canada [Domain]
Segment Reporting Information [Line Items]
Revenues										24,808	31,297	35,146
Non-US [Member]
Segment Reporting Information [Line Items]
Revenues										40,473	53,544	59,115
Tech & Clearance [Member]
Segment Reporting Information [Line Items]
Goodwill	153,974				157,477					153,974	157,477	152,162
Revenues										152,258	158,398	170,599
Depreciation										8,942	6,868	7,060
Amortization of intangible assets										0	132	1,923
Operating income (loss)										26,851	38,462	54,066
Capital expenditures										10,060	10,481	7,545
Assets	251,860				266,390					251,860	266,390	263,462
Healthcare Segment [Member]
Segment Reporting Information [Line Items]
Goodwill	0				0					0	0	6,269
Revenues										0	24,354	27,066
Depreciation										0	1,625	2,089
Amortization of intangible assets										0	596	835
Operating income (loss)										0	(1,507)	(929)
Capital expenditures										0	1,160	1,113
Assets	0				0					0	0	14,375
Corporate & Other Segment [Member]
Segment Reporting Information [Line Items]
Goodwill	0				13,314					0	13,314	13,314
Revenues										9,312	25,198	29,305
Depreciation										338	1,259	700
Amortization of intangible assets										482	1,410	4,029
Operating income (loss)										(15,159)	(14,090)	(49,746)
Capital expenditures										221	1,914	2,756
Assets	$ 6,525				$ 29,328					$ 6,525	$ 29,328	$ 32,258

SEGMENT INFORMATION (Carrying A

SEGMENT INFORMATION (Carrying Amount of Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Goodwill, Gross	$ 153,974
Goodwill, Impaired, Accumulated Impairment Loss	0
Goodwill [Roll Forward]
Goodwill, beginning balance	170,791	$ 171,745
Foreign currency translation adjustment	3,503	(5,315)
Goodwill, ending balance	153,974	170,791
Goodwill, Written off Related to Sale of Business Unit	(13,314)	(6,269)
Tech & Clearance [Member]
Segment Reporting Information [Line Items]
Goodwill, Gross	153,974
Goodwill, Impaired, Accumulated Impairment Loss	0
Goodwill [Roll Forward]
Goodwill, beginning balance	157,477	152,162
Foreign currency translation adjustment	3,503	(5,315)
Goodwill, ending balance	153,974	157,477
Goodwill, Written off Related to Sale of Business Unit	0	0
Healthcare Segment [Member]
Segment Reporting Information [Line Items]
Goodwill, Gross	0
Goodwill, Impaired, Accumulated Impairment Loss	0
Goodwill [Roll Forward]
Goodwill, beginning balance	0	6,269
Foreign currency translation adjustment	0	0
Goodwill, ending balance	0	0
Goodwill, Written off Related to Sale of Business Unit	0	(6,269)
Corporate & Other Segment [Member]
Segment Reporting Information [Line Items]
Goodwill, Gross	0
Goodwill, Impaired, Accumulated Impairment Loss	0
Goodwill [Roll Forward]
Goodwill, beginning balance	13,314	13,314
Foreign currency translation adjustment	0	0
Goodwill, ending balance	0	13,314
Goodwill, Written off Related to Sale of Business Unit	$ (13,314)	$ 0

EARNINGS PER SHARE (Details)

EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Earnings Per Share [Abstract]
Weighted Average Number of Shares, excluded from computation											800
Income from continuing operations- basic and diluted	$ 2,946	$ 930	$ (205)	$ 3,503	$ 11,758	$ 1,058	$ 1,822	$ 1,340	$ 7,174	$ 15,978	$ (5,398)
Weighted average shares outstanding-basic									48,520	47,908	48,319
Weighted Average Number of Shares, Contingently Issuable									1,085	322
Weighted average diluted shares outstanding									49,605	48,230	48,319
Basic earnings (loss) per share (in dollars per share)	$ 0.06	$ 0.02	$ 0	$ 0.07	$ 0.24	$ 0.02	$ 0.04	$ 0.03	$ 0.15	$ 0.33	$ (0.11)
Diluted earnings (loss) per share (in dollars per share)	$ 0.06	$ 0.02	$ 0	$ 0.07	$ 0.24	$ 0.02	$ 0.04	$ 0.03	$ 0.14	$ 0.33	$ (0.11)

QUARTERLY RESULTS OF OPERATIO_3

QUARTERLY RESULTS OF OPERATIONS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended									12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Sep. 30, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 37,987	$ 38,917	$ 41,595	$ 43,071	$ 50,936	$ 52,424	$ 52,400	$ 52,190		$ 161,570	$ 207,950	$ 226,970
Goodwill and Intangible Asset Impairment											2,200	24,600
Operating Expenses	35,615	37,085	39,686	40,861	48,898	49,886	48,398	47,895		153,247
Other operating income (loss)	(66)	(365)	(839)	4,639	9,992	0	0	0
Operating income (loss)	2,306	1,467	1,070	6,849	12,030	2,538	4,002	4,295		11,692	22,865	3,391
Net income (loss)	$ 2,946	$ 930	$ (205)	$ 3,503	$ 11,758	$ 1,058	$ 1,822	$ 1,340		$ 7,174	$ 15,978	$ (5,398)
Basic earnings (loss) per share (in dollars per share)	$ 0.06	$ 0.02	$ 0	$ 0.07	$ 0.24	$ 0.02	$ 0.04	$ 0.03		$ 0.15	$ 0.33	$ (0.11)
Diluted earnings (loss) per share (in dollars per share)	$ 0.06	$ 0.02	$ 0	$ 0.07	$ 0.24	$ 0.02	$ 0.04	$ 0.03		$ 0.14	$ 0.33	$ (0.11)
Impairment of goodwill									$ 15,369	$ 0	$ 0	$ 15,369

CONSOLIDATED VALUATION AND QU_3

CONSOLIDATED VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount	$ 1,688	$ 3,181	$ 2,945
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense	1,069	1,556	1,435
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	(2,110)	(3,049)	(1,199)
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount	647	1,688	3,181
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount	224	1,033	1,746
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense	5,081	(809)	(713)
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	0	0	0
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount	$ 5,305	$ 224	$ 1,033

REVENUE RECOGNITION (Details)

REVENUE RECOGNITION (Details) - USD ($) $ in Thousands	Jan. 01, 2018	Dec. 31, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract with Customer, Asset, Increase (Decrease) for Contract Acquired in Business Combination	$ 4,400
Accumulated earnings		$ 71,435	$ 59,776
Contract with Customer, Asset, Reclassified to Receivable	38,769	22,850
Capitalized Contract Cost, Gross	6,100
Capitalized Contract Cost, Amortization		10,100
Capitalized Contract Costs, Net		1,200
Contract with Customer, Liability, Increase (Decrease) for Contract Acquired in Business Combination	8,400
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accumulated earnings		5,832
Accounting Standards Update 2014-09 [Member] | Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accumulated earnings	$ 4,500	$ 4,500

REVENUE RECOGNITION - Disaggreg

REVENUE RECOGNITION - Disaggregated Revenue (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disaggregation of Revenue [Line Items]
Revenues	$ 37,987	$ 38,917	$ 41,595	$ 43,071	$ 50,936	$ 52,424	$ 52,400	$ 52,190	$ 161,570	$ 207,950	$ 226,970
Dice [Member]
Disaggregation of Revenue [Line Items]
Revenues									94,438
ClearanceJobs [Member]
Disaggregation of Revenue [Line Items]
Revenues									21,086
Dice Europe [Member]
Disaggregation of Revenue [Line Items]
Revenues									2,976
eFinancial Careers [Member]
Disaggregation of Revenue [Line Items]
Revenues									33,758
Hcareers [Member]
Disaggregation of Revenue [Line Items]
Revenues									5,329
Rigzone [Member]
Disaggregation of Revenue [Line Items]
Revenues									3,771
Biospace [Member]
Disaggregation of Revenue [Line Items]
Revenues									212
Tech-Focused [Member]
Disaggregation of Revenue [Line Items]
Revenues									152,258
Tech-Focused [Member] | Dice [Member]
Disaggregation of Revenue [Line Items]
Revenues									94,438
Tech-Focused [Member] | ClearanceJobs [Member]
Disaggregation of Revenue [Line Items]
Revenues									21,086
Tech-Focused [Member] | Dice Europe [Member]
Disaggregation of Revenue [Line Items]
Revenues									2,976
Tech-Focused [Member] | eFinancial Careers [Member]
Disaggregation of Revenue [Line Items]
Revenues									33,758
Tech-Focused [Member] | Hcareers [Member]
Disaggregation of Revenue [Line Items]
Revenues									0
Tech-Focused [Member] | Rigzone [Member]
Disaggregation of Revenue [Line Items]
Revenues									0
Tech-Focused [Member] | Biospace [Member]
Disaggregation of Revenue [Line Items]
Revenues									0
Corporate & Other Segment [Member]
Disaggregation of Revenue [Line Items]
Revenues									9,312	$ 25,198	$ 29,305
Corporate & Other Segment [Member] | Dice [Member]
Disaggregation of Revenue [Line Items]
Revenues									0
Corporate & Other Segment [Member] | ClearanceJobs [Member]
Disaggregation of Revenue [Line Items]
Revenues									0
Corporate & Other Segment [Member] | Dice Europe [Member]
Disaggregation of Revenue [Line Items]
Revenues									0
Corporate & Other Segment [Member] | eFinancial Careers [Member]
Disaggregation of Revenue [Line Items]
Revenues									0
Corporate & Other Segment [Member] | Hcareers [Member]
Disaggregation of Revenue [Line Items]
Revenues									5,329
Corporate & Other Segment [Member] | Rigzone [Member]
Disaggregation of Revenue [Line Items]
Revenues									3,771
Corporate & Other Segment [Member] | Biospace [Member]
Disaggregation of Revenue [Line Items]
Revenues									$ 212

REVENUE RECOGNITION - Contract

REVENUE RECOGNITION - Contract Balances (Details) - USD ($) $ in Thousands	Jan. 01, 2018	Dec. 31, 2018	Dec. 31, 2017
Revenue from Contract with Customer [Abstract]
Contract with Customer, Asset, Reclassified to Receivable	$ 38,769	$ 22,850
Deferred Revenue	83,646	54,723	$ 83,646
Deferred Revenue, Noncurrent	$ 0	1,363	$ 0
Contract with Customer, Liability, Revenue Recognized		$ 75,967

REVENUE RECOGNITION - Performan

REVENUE RECOGNITION - Performance Obligations (Details) $ in Thousands	Dec. 31, 2018USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 54,723
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	1,348
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	15
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 56,086

REVENUE RECOGNITION - Impact of

REVENUE RECOGNITION - Impact of Adoption on Financial Statements (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 01, 2018
Income Statement [Abstract]
Revenues	$ 37,987	$ 38,917	$ 41,595	$ 43,071	$ 50,936	$ 52,424	$ 52,400	$ 52,190	$ 161,570	$ 207,950	$ 226,970
Operating Expenses	35,615	37,085	39,686	40,861	48,898	49,886	48,398	47,895	153,247
Gain (Loss) on Disposition of Business									3,369	6,699	0
Operating income (loss)	2,306	1,467	1,070	6,849	12,030	2,538	4,002	4,295	11,692	22,865	3,391
Net income (loss)	$ 2,946	$ 930	$ (205)	$ 3,503	$ 11,758	$ 1,058	$ 1,822	$ 1,340	$ 7,174	$ 15,978	$ (5,398)
Basic earnings (loss) per share (in dollars per share)	$ 0.06	$ 0.02	$ 0	$ 0.07	$ 0.24	$ 0.02	$ 0.04	$ 0.03	$ 0.15	$ 0.33	$ (0.11)
Diluted earnings (loss) per share (in dollars per share)	$ 0.06	$ 0.02	$ 0	$ 0.07	$ 0.24	$ 0.02	$ 0.04	$ 0.03	$ 0.14	$ 0.33	$ (0.11)
Statement of Financial Position [Abstract]
Capitalized Contract Cost, Net	$ 7,939				$ 0				$ 7,939	$ 0
Assets	258,385				295,718				258,385	295,718	$ 310,095
Deferred Revenue	54,723				83,646				54,723	83,646		$ 83,646
Deferred income taxes	10,444				8,245				10,444	8,245
Liabilities	113,030				163,077				113,030	163,077
Accumulated earnings	71,435				59,776				71,435	59,776
Stockholders' Equity Attributable to Parent	145,355				132,641				145,355	132,641
Liabilities and Equity	258,385				$ 295,718				258,385	295,718
Statement of Cash Flows [Abstract]
Deferred income taxes									2,699	212	(3,268)
Gain (Loss) on Disposition Cost From Sale									3,369	6,699	(639)
Increase (Decrease) in Contract with Customer, Asset									(3,236)	0	0
Deferred revenue									(18,866)	712	2,370
Net Cash Provided by (Used in) Operating Activities									14,918	$ 34,409	$ 44,997
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Income Statement [Abstract]
Revenues									113
Operating Expenses									(2,882)
Gain (Loss) on Disposition of Business									(1,199)
Operating income (loss)									1,796
Net income (loss)									$ 1,347
Basic earnings (loss) per share (in dollars per share)									$ 0.03
Diluted earnings (loss) per share (in dollars per share)									$ 0.02
Statement of Financial Position [Abstract]
Capitalized Contract Cost, Net	7,939								$ 7,939
Assets	7,939								7,939
Deferred Revenue	113								113
Deferred income taxes	1,994								1,994
Liabilities	2,107								2,107
Accumulated earnings	5,832								5,832
Stockholders' Equity Attributable to Parent	5,832								5,832
Liabilities and Equity	7,939								7,939
Statement of Cash Flows [Abstract]
Deferred income taxes									803
Gain (Loss) on Disposition Cost From Sale									1,199
Increase (Decrease) in Contract with Customer, Asset									(3,236)
Deferred revenue									(113)
Net Cash Provided by (Used in) Operating Activities									0
Accounting Standards Update 2014-09 [Member] | Calculated under Revenue Guidance in Effect before Topic 606 [Member]
Income Statement [Abstract]
Revenues									161,457
Operating Expenses									156,129
Gain (Loss) on Disposition of Business									4,568
Operating income (loss)									9,896
Net income (loss)									$ 5,827
Basic earnings (loss) per share (in dollars per share)									$ 0.12
Diluted earnings (loss) per share (in dollars per share)									$ 0.12
Statement of Financial Position [Abstract]
Capitalized Contract Cost, Net	0								$ 0
Assets	250,446								250,446
Deferred Revenue	54,610								54,610
Deferred income taxes	8,450								8,450
Liabilities	110,923								110,923
Accumulated earnings	65,603								65,603
Stockholders' Equity Attributable to Parent	139,523								139,523
Liabilities and Equity	250,446								250,446
Statement of Cash Flows [Abstract]
Deferred income taxes									1,896
Gain (Loss) on Disposition Cost From Sale									(4,568)
Increase (Decrease) in Contract with Customer, Asset									0
Deferred revenue									(18,753)
Net Cash Provided by (Used in) Operating Activities									14,918
Accounting Standards Update 2014-09 [Member] | Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Income Statement [Abstract]
Revenues									200
Statement of Financial Position [Abstract]
Capitalized Contract Cost, Net	6,100								6,100
Accumulated earnings	$ 4,500								$ 4,500			$ 4,500