Orbital Infrastructure (OIGBQ) 10-Q 9 Nov 17 2017 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Nov. 07, 2017
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Entity Registrant Name	CUI Global, Inc.
Entity Central Index Key	1,108,967
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Trading Symbol	CUI
Entity Common Stock, Shares Outstanding		28,404,796

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 758	$ 4,617
Trade accounts receivable, net of allowance of $128 and $151, respectively	11,365	9,375
Inventories, net of allowance of $1,127 and $774, respectively	14,221	13,202
Costs in excess of billings	1,451	2,735
Prepaid expenses and other	1,733	2,174
Total current assets	29,528	32,103
Property and equipment, less accumulated depreciation of $4,128 and $3,299, respectively	11,260	10,952
Goodwill	20,737	20,125
Other intangible assets, less accumulated amortization of $11,415 and $9,438, respectively	15,852	16,201
Note receivable, less current portion	324	362
Deposits and other assets	1,876	100
Total assets	79,577	79,843
Current Liabilities:
Accounts payable	5,996	6,170
Short-term overdraft facility	1,022	0
Mortgage note payable, current portion	93	89
Capital lease obligation, current portion	3	28
Accrued expenses	4,120	4,542
Billings in excess of costs	2,853	1,977
Unearned revenue	7,231	4,932
Total current liabilities	21,318	17,738
Long term mortgage note payable, less current portion	3,280	3,350
Long term note payable, related party	5,304	5,304
Line of credit	1,932	0
Capital lease obligation, less current portion	10	12
Derivative liability	412	467
Deferred tax liabilities	3,528	4,120
Other long-term liabilities	114	217
Total liabilities	35,898	31,208
Commitments and contingencies
Stockholders' Equity:
Preferred stock, par value $0.001; 10,000,000 shares authorized; no shares issued at September 30, 2017 or December 31, 2016	0	0
Common stock, par value $0.001; 325,000,000 shares authorized; 20,995,916 shares issued and outstanding at September 30, 2017 and 20,916,848 shares issued and outstanding at December 31, 2016	21	21
Additional paid-in capital	150,571	150,174
Accumulated deficit	(103,294)	(95,970)
Accumulated other comprehensive loss	(3,619)	(5,590)
Total stockholders' equity	43,679	48,635
Total liabilities and stockholders' equity	$ 79,577	$ 79,843

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Trade accounts receivable, allowance	$ 128	$ 151
Inventory allowance	1,127	774
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	4,128	3,299
Finite-Lived Intangible Assets, Accumulated Amortization	$ 11,415	$ 9,438
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	325,000,000	325,000,000
Common stock, shares issued	20,995,916	20,916,848
Common stock, shares outstanding	20,995,916	20,916,848

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues:
Total revenues	$ 21,796	$ 23,257	$ 62,141	$ 67,058
Cost of revenues	14,356	14,660	40,793	41,269
Gross profit	7,440	8,597	21,348	25,789
Operating expenses:
Selling, general and administrative	8,212	8,080	25,480	26,328
Depreciation and amortization	521	585	1,636	1,809
Research and development	696	512	1,920	1,544
Provision (credit) for bad debt	30	0	(21)	48
Other operating expenses	0	5	12	5
Total operating expenses	9,459	9,182	29,027	29,734
Loss from operations	(2,019)	(585)	(7,679)	(3,945)
Other income (expense)	77	6	169	(265)
Interest expense	(137)	(119)	(374)	(364)
Loss before taxes	(2,079)	(698)	(7,884)	(4,574)
Income tax expense (benefit)	(177)	(191)	(560)	82
Net loss	$ (1,902)	$ (507)	$ (7,324)	$ (4,656)
Basic and diluted weighted average common shares outstanding (in shares)	20,991,534	20,906,781	20,969,735	20,891,517
Basic and diluted loss per common share (in dollars per share)	$ (0.09)	$ (0.02)	$ (0.35)	$ (0.22)

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income and Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net loss	$ (1,902)	$ (507)	$ (7,324)	$ (4,656)
Other comprehensive income (loss)
Foreign currency translation adjustment	771	(796)	1,971	(2,897)
Comprehensive loss	$ (1,131)	$ (1,303)	$ (5,353)	$ (7,553)

Condensed Consolidated Stateme6

Condensed Consolidated Statement of Changes in Stockholders' Equity - 9 months ended Sep. 30, 2017 - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 31, 2016	$ 48,635	$ 21	$ 150,174	$ (95,970)	$ (5,590)
Balance (in shares) at Dec. 31, 2016		20,916,848
Common stock issued for exercises of options	0	$ 0	0	0	0
Common stock issued for exercises of options (in shares)		245
Common stock issued for compensation, services, and royalty payments	397	$ 0	397	0	0
Common stock issued for compensation, services, and royalty payments (in shares)		78,823
Net loss for the period ended September 30, 2017	(7,324)	$ 0	0	(7,324)	0
Other comprehensive income	1,971	0	0	0	1,971
Balance at Sep. 30, 2017	$ 43,679	$ 21	$ 150,571	$ (103,294)	$ (3,619)
Balance (in shares) at Sep. 30, 2017		20,995,916

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (7,324)	$ (4,656)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation	744	697
Amortization of intangibles	1,388	1,450
Stock and options issued and stock to be issued for compensation, royalties and services	313	983
Unrealized (gain) loss on derivative liability	(55)	98
Non-cash royalties, net (see Note 5)	(6)	15
(Credit to) provision for bad debt expense and returns allowances	(21)	52
(Credit to) provision for warranty reserve	(11)	0
Deferred income taxes	(666)	(105)
Inventory reserve	317	269
Non-cash unrealized foreign currency (gains)/losses	(307)	122
Impairment of intangible assets	3	0
Loss on disposal of assets	9	5
(Increase) decrease in operating assets:
Trade accounts receivable	(1,667)	2,244
Inventory	(902)	(506)
Costs in excess of billings	1,402	(513)
Prepaid expenses and other current assets	(562)	445
Deposits and other assets	(515)	(27)
Increase (decrease) in operating liabilities:
Accounts payable	(321)	148
Accrued expenses	(482)	(1,056)
Unearned revenue	2,219	643
Billings in excess of costs	683	865
NET CASH (USED IN) PROVIDED BY OPERATING ACTIVITIES	(5,761)	1,173
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(635)	(463)
Proceeds from sale of property and equipment	2	22
Investments in other intangible assets	(448)	(662)
Proceeds from notes receivable	19	0
NET CASH USED IN INVESTING ACTIVITIES	(1,062)	(1,103)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from overdraft facility	2,146	0
Payments on overdraft facility	(1,174)	0
Proceeds from line of credit	19,585	0
Payments on line of credit	(17,653)	0
Payments on capital lease obligations	(27)	(38)
Payments on mortgage note payable	(66)	(64)
Payments on contingent consideration	(61)	(59)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	2,750	(161)
Effect of exchange rate changes on cash	214	(125)
Net decrease in cash and cash equivalents	(3,859)	(216)
Cash and cash equivalents at beginning of period	4,617	7,267
CASH AND CASH EQUIVALENTS AT END OF PERIOD	758	7,051
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Income taxes paid	130	169
Interest paid, net of capitalized interest	375	366
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Common stock issued and to be issued for royalties payable pursuant to product agreements, related party	8	38
Common stock issued and to be issued for consulting services and compensation in common stock	389	718
Exchange of investment in TPI in return for note receivable (note 5)	0	385
Accrued property and equipment purchases	21	8
Accrued investment in other intangible assets	83	137
Capital leases	$ 0	$ 19

NATURE OF OPERATIONS AND BASIS

NATURE OF OPERATIONS AND BASIS OF PRESENTATION	9 Months Ended
	Sep. 30, 2017
Accounting Policies [Abstract]
NATURE OF OPERATIONS AND BASIS OF PRESENTATION	1. NATURE OF OPERATIONS AND BASIS OF PRESENTATION CUI Global Inc. (CUI Global) is a platform company composed of two segments, the Power and Electromechanical segment and the Energy segment, along with an "Other" category. The Power and Electromechanical segment consists of the wholly owned subsidiaries: CUI, Inc. (CUI), based in Tualatin, Oregon; CUI Japan, based in Tokyo, Japan; CUI-Canada, based in Toronto, Canada; and the entity holding the corporate building, CUI Properties. All three subsidiaries are providers of power and electromechanical components including power supplies, transformers, converters, connectors and industrial controls for Original Equipment Manufacturers (OEMs). The Power and Electromechanical segment defines its product offerings into two categories: components The Company’s Energy segment consists of the Orbital Gas Systems Ltd subsidiary (Orbital-UK) and the Orbital Gas Systems, North America, Inc. subsidiary, collectively referred to as "Orbital." This business segment was formed when in April 2013, CUI Global acquired 100 The Other category represents the remaining activities that are not included as part of the other reportable segments and primarily represents corporate activity. The accompanying interim unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America and the rules and regulations of the United States Securities and Exchange Commission for interim financial information, which includes condensed consolidated financial statements. Accordingly, they do not include all the information and notes necessary for a comprehensive presentation of financial position and results of operations and should be read in conjunction with the Company's Annual Report, Form 10-K for the year ended December 31, 2016. It is management's opinion that all material adjustments (consisting of normal recurring adjustments) have been made, which are necessary for a fair financial statement presentation. Significant intercompany accounts and transactions have been eliminated in consolidation. The results for the interim period are not necessarily indicative of the results to be expected for the year ending December 31, 2017. 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 at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant estimates include estimates used to review the Company’s goodwill, impairments and estimations of long-lived assets, impairment of prepaid royalties, revenue recognition on percentage of completion type contracts, allowances for uncollectible accounts, inventory valuation, warranty reserves, valuations of non-cash capital stock issuances and the valuation allowance on deferred tax assets. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable in the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. Immaterial revision was made to the condensed consolidated statement of cash flows: for the nine months ended September 30, 2016, $ 122

INVENTORIES

INVENTORIES	9 Months Ended
	Sep. 30, 2017
Inventory Disclosure [Abstract]
INVENTORIES	2. INVENTORIES Inventories consist of raw materials, work-in-process and finished goods and are stated at the lower of cost or market using the first-in, first-out (FIFO) method or through the moving average cost method. At September 30, 2017 and December 31, 2016, accrued liabilities included $ 1.3 1.1 (in thousands) September 30, December 31, 2017 2016 Finished goods $ 11,126 $ 9,684 Raw materials 3,267 3,357 Work-in-process 955 935 Inventory reserves (1,127) (774) Total inventories $ 14,221 $ 13,202

PREPAID EXPENSES, DEPOSITS AND

PREPAID EXPENSES, DEPOSITS AND OTHER	9 Months Ended
	Sep. 30, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
PREPAID EXPENSES, DEPOSITS AND OTHER	3. PREPAID EXPENSES, DEPOSITS AND OTHER (in thousands) September 30, December 31, 2017 2016 Prepaid expenses and other $ 1,733 $ 2,174 Deposits and other assets $ 1,876 $ 100 During the second quarter of 2017, prepaid royalties in the amount of $1.6 million were transferred to long-term and included in Deposits and other assets from prepaid expenses due to a change in the estimated period of when those prepayments will be amortized based upon management’s assessment of future GasPT sales. There was $1.8 million of prepaid royalty included in Deposits and other assets at September 30, 2017.

GOODWILL AND INDEFINITE-LIVED I

GOODWILL AND INDEFINITE-LIVED INTANGIBLES	9 Months Ended
	Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND INDEFINITE-LIVED INTANGIBLES	4. GOODWILL AND INDEFINITE-LIVED INTANGIBLES The Company tests for impairment of other indefinite-lived intangible assets in the second quarter of each year and when events or circumstances indicate that the carrying amount of the intangible assets exceed their fair value and may not be recoverable. The Company performed a qualitative assessment of impairment for other indefinite-lived intangible assets at May 31, 2017 following the guidance in ASC 350-30-35-18A and 18B and determined there to be no impairment. Other indefinite-lived intangibles were $ 7.3 The Company also tests for impairment of Goodwill in the second quarter of each year and when events or circumstances indicate that the carrying amount of Goodwill exceeds its fair value and may not be recoverable. As detailed in ASC 350-20-35-3A, in performing its testing for impairment of goodwill as of May 31, 2017, management completes a qualitative analysis to determine whether it was more likely than not that the fair value of a reporting unit is less than its carrying amount, including goodwill. Periodically, as was done at May 31, 2016, the Company also prepares a quantitative analysis in addition to the qualitative one. To complete the qualitative review, management follows the steps in ASC 350-20-35-3C to evaluate the fair values of the goodwill and considers all known events and circumstances that might trigger an impairment of goodwill. Through these reviews, management concluded that there were no events or circumstances that triggered an impairment (and there was no expectation that a reporting unit or a significant portion of a reporting unit would be sold or otherwise disposed of in the following year). The carrying value of goodwill and the activity for the nine months ended September 30, 2017 are as follows: Power and Electro - (in thousands) Mechanical Energy Other Total Balance, December 31, 2016 $ 13,083 $ 7,042 $ — $ 20,125 Currency translation adjustments 9 603 — 612 Balance, September 30, 2017 $ 13,092 $ 7,645 $ — $ 20,737

INVESTMENT AND NOTE RECEIVABLE

INVESTMENT AND NOTE RECEIVABLE	9 Months Ended
	Sep. 30, 2017
Investments And Notes Receivable [Abstract]
INVESTMENT AND NOTE RECEIVABLE	5. INVESTMENT AND NOTE RECEIVABLE During the three months ended March 31, 2016, CUI Global's 8.5 0.4 5 5 5 13 15 19

DERIVATIVE INSTRUMENTS

DERIVATIVE INSTRUMENTS	9 Months Ended
	Sep. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE INSTRUMENTS	6. DERIVATIVE INSTRUMENTS The Company uses various derivative instruments including forward currency contracts and interest rate swaps to manage certain exposures. These instruments are entered into under the Company’s corporate risk management policy to minimize exposure and are not for speculative trading purposes. The Company recognizes all derivatives as either assets or liabilities in the condensed consolidated balance sheet and measures those instruments at fair value. Changes in the fair value of derivatives are recognized in earnings. For additional information on fair value of derivatives, see Note 10, “Investments and Fair Value Measurements,” of these condensed consolidated financial statements. The Company has limited involvement with derivative instruments and does not trade them. The Company has entered into one interest rate swap, which has a maturity date of ten years from the date of inception, and is used to minimize the interest rate risk on the variable rate mortgage. During the three and nine months ended September 30, 2017, the Company had $ 20 55 Embedded Derivative Liabilities The Company evaluates embedded conversion features pursuant to FASB Accounting Standards Codification No. 815 (“FASB ASC 815”), “Derivatives and Hedging,” which requires a periodic valuation of the fair value of derivative instruments and a corresponding recognition of liabilities associated with such derivatives.

STOCK-BASED PAYMENTS FOR COMPEN

STOCK-BASED PAYMENTS FOR COMPENSATION, SERVICES AND ROYALTIES	9 Months Ended
	Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
STOCK-BASED PAYMENTS FOR COMPENSATION, SERVICES AND ROYALTIES	7. STOCK-BASED PAYMENTS FOR COMPENSATION, SERVICES AND ROYALTIES The Company records its stock-based compensation expense under its stock option plans and the Company also issues stock for services and royalties. A detailed description of the awards under these plans and the respective accounting treatment is included in the “Notes to the Consolidated Financial Statements” included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016. The Company did not grant any stock options in the three and nine months ended September 30, 2017. For the three and nine months ended September 30, 2017, the Company recorded stock-based expense of $ 0.1 0.3 0.1 1.0

SEGMENT REPORTING

SEGMENT REPORTING	9 Months Ended
	Sep. 30, 2017
Segment Reporting [Abstract]
SEGMENT REPORTING	8. SEGMENT REPORTING Operating segments are defined in accordance with ASC 280-10 as components of an enterprise for which separate financial information is available that is evaluated regularly by the chief operating decision maker, or decision making group, in deciding how to allocate resources and in assessing performance. The measurement basis of segment profit or loss is income (loss) from operations. Management has identified six operating segments based on the activities of the Company in accordance with the ASC 280-10. These operating segments have been aggregated into two reportable segments, and an Other category. The two reportable segments are Power and Electromechanical and Energy. The Power and Electromechanical segment is focused on the operations of CUI, CUI-Canada and CUI Japan for the sale of internal and external power supplies, related components and industrial controls. The Power and Electromechanical segment also includes CUI Properties, LLC that owns the Company's Tualatin, Oregon facility. The Energy segment is focused on the operations of Orbital Gas Systems Ltd. and Orbital Gas Systems, North America, Inc. which includes gas related test and measurement systems, including the GasPT. The Other category represents the remaining activities that are not included as part of the other reportable segments and represents primarily corporate activity. During the three months ended September 30, 2017, the Company’s total revenues consisted of 77 23 69 31 During the nine months ended September 30, 2017, the Company’s total revenues consisted of 78 22 67 33 Power and Electro- (in thousands) Mechanical Energy Other Total Revenues from external customers $ 16,700 $ 5,096 $ — $ 21,796 Depreciation and amortization (1) 363 342 — 705 Interest expense 75 1 61 137 Profit (loss) from operations 890 (1,660) (1,249) (2,019) Segment assets 49,377 29,495 705 79,577 Other intangible assets, net 8,979 6,873 — 15,852 Goodwill 13,092 7,645 — 20,737 Expenditures for long-lived assets (2) 157 114 — 271 The following information represents segment activity for the nine months ended September 30, 2017 and selected balance sheet items as of September 30, 2017: (in thousands) Power and Energy Other Total Revenues from external customers $ 48,542 $ 13,599 $ — $ 62,141 Depreciation and amortization (1) 1,139 993 — 2,132 Interest expense 187 3 184 374 Profit (loss) from operations 1,984 (5,924) (3,739) (7,679) Segment assets 49,377 29,495 705 79,577 Other intangible assets, net 8,979 6,873 — 15,852 Goodwill 13,092 7,645 — 20,737 Expenditures for long-lived assets (2) 786 297 — 1,083 (1) For the Power and Electromechanical segment, for the three and nine months ended September 30, 2017, depreciation and amortization include $ 184 496 (2) Includes purchases of property, plant and equipment and the investment in other intangible assets. The following information represents segment activity for the three months ended September 30, 2016 and selected balance sheet items as of September 30, 2016: Power and Electro- (in thousands) Mechanical Energy Other Total Revenues from external customers $ 16,157 $ 7,100 $ — $ 23,257 Depreciation and amortization (1) 371 339 — 710 Interest expense 56 3 60 119 Profit (loss) from operations 813 (201) (1,197) (585) Segment assets 51,438 32,316 268 84,022 Other intangibles assets, net 9,461 7,541 — 17,002 Goodwill 13,102 7,403 — 20,505 Expenditures for segment assets (2) 99 255 — 354 The following information represents segment activity for the nine months ended September 30, 2016 and selected balance sheet items as of September 30, 2016: Power and Electro- (in thousands) Mechanical Energy Other Total Revenues from external customers $ 44,607 $ 22,451 $ — $ 67,058 Depreciation and amortization (1) 1,063 1,083 1 2,147 Interest expense 166 5 193 364 Profit (loss) from operations 1,038 (480) (4,503) (3,945) Segment assets 51,438 32,316 268 84,022 Other intangibles assets, net 9,461 7,541 — 17,002 Goodwill 13,102 7,403 — 20,505 Expenditures for segment assets (2) 580 545 — 1,125 (1) For the Power and Electromechanical segment, depreciation and amortization totals for the three and nine months ended September 30, 2016, include $ 125 338 (2) Includes purchases of property plant and equipment and the investment in other intangible assets. (dollars in thousands) For the Three Months Ended September 30, 2017 2016 Amount % Amount % USA $ 13,631 62 % $ 13,152 56 % United Kingdom 3,634 17 % 4,540 20 % All Others 4,531 21 % 5,565 24 % Total $ 21,796 100 % $ 23,257 100 % (dollars in thousands) For the Nine Months Ended September 30, 2017 2016 Amount % Amount % USA $ 38,209 61 % $ 35,006 52 % United Kingdom 10,434 17 % 13,988 21 % All Others 13,498 22 % 18,064 27 % Total $ 62,141 100 % $ 67,058 100 %

RECENT ACCOUNTING PRONOUNCEMENT

RECENT ACCOUNTING PRONOUNCEMENTS	9 Months Ended
	Sep. 30, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
RECENT ACCOUNTING PRONOUNCEMENTS	9. RECENT ACCOUNTING PRONOUNCEMENTS In January 2017, the FASB issued Accounting Standards Update ("ASU") No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment The Company is required to adopt ASU 2017-04 for its annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019 and may early adopt as early as its first annual or interim impairment testing date following January 1, 2017. The Company elected to early adopt the amendments of this standard effective with its May 31, 2017 goodwill impairment test. The early adoption of this standard did not impact the Company’s financial condition, results of operations, and cash flows. In August 2016, the FASB issued Accounting Standards Update (“ASU”) No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments In February 2016, The FASB issued ASU No. 2016-02, Leases (Topic 842) In July 2015, the FASB issued ASU No. 2015-11, “ Simplifying the Measurement of Inventory In May 2014, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2014-09, “ Revenue from Contracts with Customers

INVESTMENTS AND FAIR VALUE MEAS

INVESTMENTS AND FAIR VALUE MEASUREMENTS	9 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
INVESTMENTS AND FAIR VALUE MEASUREMENTS	10. INVESTMENTS AND FAIR VALUE MEASUREMENTS The Company’s fair value hierarchy for its cash equivalents, marketable securities and derivative instruments, including contingent consideration, as of September 30, 2017 and December 31, 2016, respectively, was as follows: (in thousands) September 30, 2017 Level 1 Level 2 Level 3 Total Money market securities $ 16 $ — $ — $ 16 Total assets $ 16 $ — $ — $ 16 Derivative instrument payable $ — $ 413 $ — $ 413 Contingent consideration — — 45 45 Total liabilities $ — $ 413 $ 45 $ 458 December 31, 2016 Level 1 Level 2 Level 3 Total Money market securities $ 16 $ — $ — $ 16 Total assets $ 16 $ — $ — $ 16 Derivative instrument payable $ — $ 467 $ — $ 467 Contingent consideration — — 103 103 Total liabilities $ — $ 467 $ 103 $ 570 Fair Value Measurements Using Significant Unobservable Inputs (Level 3) Contingent (in thousands) consideration Balance at December 31, 2016 $ 103 Payments (61) Fair value adjustments 3 Balance at September 30, 2017 $ 45 There were no transfers between Level 3 and Level 2 in 2017 as determined at the end of the reporting period. The contingent consideration liability is associated with the acquisition of Tectrol in March 2015 and represents the present value of the expected future contingent payment based on revenue projections of select Tectrol legacy products. The inputs used to measure contingent consideration are classified as Level 3 within the valuation hierarchy. The valuation is not supported by market criteria and reflects the Company’s internal revenue forecasts. Since the valuation is not supported by market criteria, the valuation is completely dependent on unobservable inputs. During quarterly updates of the valuation, the calculation of the value is based on actual and reasonably estimated future revenues. Based on the Company’s revenue projections and third quarter 2017 analysis, the current value of the contingent consideration increased $3 thousand, net of actual payments made during the nine months ended September 30, 2017. Contingent consideration in the amount of $ 61

LOSS PER COMMON SHARE

LOSS PER COMMON SHARE	9 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
LOSS PER COMMON SHARE	11. LOSS PER COMMON SHARE In accordance with FASB Accounting Standards Codification Topic 260 (“FASB ASC 260”), “Earnings per Share,” basic net income (loss) per share is computed by dividing the net income (loss) available to common stockholders for the period by the weighted average number of common shares outstanding during the period. Diluted net income (loss) per share is computed by dividing net income (loss) available to common stockholders by the weighted average number of diluted shares outstanding during the period calculated using the treasury stock method. Due to the Company’s net loss in the three and nine months ended September 30, 2017 and September 30, 2016, the assumed exercise of stock options using the treasury stock method would have had an antidilutive effect and therefore 1.0 For the Three Months For the Nine Months (in thousands, except share and per share amounts) Ended September 30, Ended September 30, 2017 2016 2017 2016 Net loss $ (1,902) $ (507) $ (7,324) $ (4,656) Basic and diluted weighted average number of shares outstanding 20,991,534 20,906,781 20,969,735 20,891,517 Basic and diluted loss per common share $ (0.09) $ (0.02) $ (0.35) $ (0.22)

CAPITALIZED INTEREST

CAPITALIZED INTEREST	9 Months Ended
	Sep. 30, 2017
Capitalized Interest [Abstract]
CAPITALIZED INTEREST	12. CAPITALIZED INTEREST The cost of constructing facilities, equipment and project assets includes interest costs incurred during the assets’ construction period. The components of interest expense and capitalized interest are as follows: For the Three For the Nine Months Ended Months Ended (in thousands) September 30, September 30, 2017 2016 2017 2016 Interest cost incurred $ 143 $ 123 $ 389 $ 370 Interest cost capitalized - property and equipment (6) (4) (15) (6) Interest expense, net $ 137 $ 119 $ 374 $ 364

INCOME TAXES

INCOME TAXES	9 Months Ended
	Sep. 30, 2017
Income Tax Disclosure [Abstract]
INCOME TAXES	13. INCOME TAXES The Company is subject to taxation in the U.S., as well as various state and foreign jurisdictions. The Company continues to record a full valuation allowance against the Company’s U.S. net deferred tax assets as it is not more likely than not that the Company will realize a benefit from these assets in a future period. In future periods, tax benefits and related deferred tax assets will be recognized when management concludes realization of such amounts is more likely than not. A net tax benefit of $ (177) (560) 8.5 7.1 The Company’s total income tax expense (benefit) and effective tax rate was $ (191) 27.4 82 (1.8) The Company adopted ASU 2016-09, Compensation - Stock Compensation (Topic 718)

WORKING CAPITAL LINE OF CREDIT

WORKING CAPITAL LINE OF CREDIT AND OVERDRAFT FACILITY	9 Months Ended
	Sep. 30, 2017
Line of Credit Facility [Abstract]
WORKING CAPITAL LINE OF CREDIT AND OVERDRAFT FACILITY	14. WORKING CAPITAL LINE OF CREDIT AND OVERDRAFT FACILITY During the period ended September 30, 2017, the Company’s wholly owned subsidiary, CUI, Inc., maintained a two-year revolving Line of Credit (LOC) with Wells Fargo Bank with the following terms: (in thousands) Credit Limit September Expiration Date Interest rate $ 6,000 (2) $ 1,932 (1) June 1, 2019 (2) Fixed rate at 2.25% above the LIBOR in effect on the first day of the applicable fixed-rate term, or Variable rate at 2.25% above the daily one-month LIBOR rate. (1) (2) The line of credit is secured by the following collateral via a security agreement with CUI Inc. and CUI-Canada at September 30, 2017: (in thousands) CUI Inc. and CUI-Canada General intangibles, net $ 8,979 CUI Inc. and CUI-Canada Accounts receivable, net $ 6,773 CUI Inc. and CUI-Canada Inventory, net $ 12,393 CUI Inc. and CUI-Canada Equipment, net $ 1,784 The borrowing base for the line of credit is based on a percent of CUI Inc. and CUI-Canada's inventory plus a percent of CUI Inc.'s accounts receivable. CUI Global, Inc., the parent company, is a payment guarantor of the LOC. Other terms included in this revolving line of credit for CUI limit capital expenditures by CUI Inc. and CUI-Canada to $1.75 million in any fiscal year. The LOC is supported by a single long-term note that does not require repayment until maturity although the Company at its option can repay and re-borrow amounts up to the LOC limit. Since the maturity date is June 1, 2019, which is more than one year in the future, the LOC is classified as long-term. The LOC contains certain financial covenants. In the second quarter of 2017, the Company renegotiated the terms of the LOC and its related covenants. In the third quarter of 2017, the Company received a temporary increase in its credit limit to $6 million. The credit limit will automatically decrease to $4 million as of January 1, 2018. The Company is currently in compliance with its covenants. At September 30, 2017, there was a $1.9 million balance outstanding on the LOC and $4.1 million of credit was available. On October 5, 2016, Orbital Gas Systems Ltd. signed a five-year agreement with the London branch of Wells Fargo Bank N.A. for a multi-currency variable rate overdraft facility with a facility limit of 1.5 million pounds sterling ($2.0 million at September 30, 2017) that expires on October 5, 2021. The London branch of Wells Fargo Bank N.A. can demand repayment of amounts on overdraft at any time. The interest rate on the facility is a base rate plus a 2.25% margin. The facility had an interest rate of 2.5% at September 30, 2017. The overdraft facility is primarily secured by land, equipment, intellectual property rights, and rights to potential future insurance proceeds held by Orbital Gas Systems Ltd. At September 30, 2017, there was a $1.0 million balance outstanding on the overdraft facility and $1.0 million of credit was available.

ACCUMULATED OTHER COMPREHENSIVE

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	9 Months Ended
	Sep. 30, 2017
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax [Abstract]
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	15. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (in thousands) As of September 30, As of December 31, 2017 2016 Foreign currency translation adjustment $ (3,619) $ (5,590) Accumulated other comprehensive income (loss) $ (3,619) $ (5,590)

CAPITAL LEASES

CAPITAL LEASES	9 Months Ended
	Sep. 30, 2017
Leases, Capital [Abstract]
CAPITAL LEASES	16. CAPITAL LEASES The following is an analysis of the leased property under capital leases by major classes as of September 30, 2017 and December 31, 2016: September 30, December 31, (in thousands) 2017 2016 Classes of Property Motor vehicles $ — $ 98 Equipment 19 19 Less: Accumulated depreciation (6) (65) $ 13 $ 52 The following summarizes the current and long-term portion of capital leases payable as of September 30, 2017 and December 31, 2016: September 30, December 31, (in thousands) 2017 2016 Current leases payable $ 3 $ 28 Long-term leases payable 10 12 $ 13 $ 40

NOTES PAYABLE

NOTES PAYABLE	9 Months Ended
	Sep. 30, 2017
Notes Payable [Abstract]
NOTES PAYABLE	17. NOTES PAYABLE Notes payable is summarized as follows as of September 30, 2017 and December 31, 2016: September 30, December 31, (in thousands) 2017 2016 Mortgage note payable (1) $ 3,373 $ 3,439 Acquisition Note Payable - related party (2) 5,304 5,304 Ending Balance $ 8,677 $ 8,743 (1) On October 1, 2013, the funding of the purchase of the Company’s Tualatin, Oregon corporate offices from Barakel, LLC was completed. The purchase price for this asset was $ 5.1 3.7 66 3.4 93 3.3 (2) The note payable to International Electronic Devices, Inc. (formerly CUI, Inc.) is associated with the acquisition of CUI, Inc. The promissory note is due May 15, 2020 and includes a 5% interest rate per annum, with interest payable monthly and the principal due as a balloon payment at maturity. The note contains a contingent conversion feature, such that in the event of default on the note the holder of the note can, at the holder’s option, convert the note principal into common stock at $0.001 per share. As of September 30, 2017, the Company is in compliance with all terms of this promissory note and the conversion feature is not effective.

CONCENTRATIONS

CONCENTRATIONS	9 Months Ended
	Sep. 30, 2017
Risks and Uncertainties [Abstract]
CONCENTRATIONS	18. CONCENTRATIONS For the three months ended September 30, 2017, 27 19 26 19 The Company’s major product lines during the first nine months of 2017 and 2016 were power and electromechanical products and natural gas infrastructure and high-tech solutions. At September 30, 2017, of the gross trade accounts receivable of $ 11.5 16 9.5 30 10 CUI had one supplier concentration of approximately 11 12 8 The Company had revenue concentration in the United Kingdom for the three months ended September 30, 2017, and 2016 of 17 20 The Company had revenue concentration in the United Kingdom for the nine months ended September 30, 2017 and 2016 of 17 21 At September 30, 2017 and December 31, 2016, the Company had trade accounts receivable concentrations in the United Kingdom of 33 27 11

OTHER EQUITY TRANSACTIONS

OTHER EQUITY TRANSACTIONS	9 Months Ended
	Sep. 30, 2017
Equity [Abstract]
OTHER EQUITY TRANSACTIONS	19. OTHER EQUITY TRANSACTIONS Grant date fair value recorded at Expense/ Stock Total no. issuance Date of Type of Prepaid/ issuance Reason for of (in issuance issuance Cash recipient issuance shares thousands) January, April and August 2017 Vested restricted common stock Expense Four board members Director compensation 33,956 $ 150 January, February and June 2017 Common stock Expense Three Employees Approved bonus 28,634 182 (1) January 2017 Common stock Expense Related party Q4 Royalty Fee 1,233 8 (1) January and February 2017 Common stock Expense Two Employees Cashless stock option exercises 245 — (2) May 2017 Common stock Prepaid exp/expense Third-party consultant Strategic investor marketing services 15,000 57 (3) 79,068 $ 397 (4) (1) f $ 176 (2) The Company received $— for the issuance in the cashless option exercises. (3) Amount includes $ 38 (4) Does not include stock expense of $ 130

SUBSEQUENT EVENT

SUBSEQUENT EVENT	9 Months Ended
	Sep. 30, 2017
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	20. SUBSEQUENT EVENT On October 23, 2017, the Company closed on an underwritten public offering of 7,392,856 shares at a public offering price of $2.80 per share, including 964,285 shares sold at the public offering price pursuant to the underwriter's exercise in full of its option to purchase additional shares to cover over-allotments. The net proceeds to CUI Global (after deducting underwriting discount and other estimated expenses payable by the Company) were approximately $19.2 million. The Company intends to use the net proceeds from the offering primarily for general corporate purposes, which may include operating expenses, working capital to improve and promote its commercially available products, advance product candidates, future acquisitions or share repurchases, expand international presence and commercialization, general capital expenditures and satisfaction of debt obligations. In October 2017, the Company used some of the proceeds of the public offering to pay off its line of credit, which had a balance of $1.9 million at September 30, 2017.

NATURE OF OPERATIONS AND BASI28

NATURE OF OPERATIONS AND BASIS OF PRESENTATION (Policies)	9 Months Ended
	Sep. 30, 2017
Accounting Policies [Abstract]
Nature of Operations	Nature of Operations CUI Global Inc. (CUI Global) is a platform company composed of two segments, the Power and Electromechanical segment and the Energy segment, along with an "Other" category. The Power and Electromechanical segment consists of the wholly owned subsidiaries: CUI, Inc. (CUI), based in Tualatin, Oregon; CUI Japan, based in Tokyo, Japan; CUI-Canada, based in Toronto, Canada; and the entity holding the corporate building, CUI Properties. All three subsidiaries are providers of power and electromechanical components including power supplies, transformers, converters, connectors and industrial controls for Original Equipment Manufacturers (OEMs). The Power and Electromechanical segment defines its product offerings into two categories: components The Company’s Energy segment consists of the Orbital Gas Systems Ltd subsidiary (Orbital-UK) and the Orbital Gas Systems, North America, Inc. subsidiary, collectively referred to as "Orbital." This business segment was formed when in April 2013, CUI Global acquired 100 The Other category represents the remaining activities that are not included as part of the other reportable segments and primarily represents corporate activity.
Basis of Presentation	Basis of Presentation The accompanying interim unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America and the rules and regulations of the United States Securities and Exchange Commission for interim financial information, which includes condensed consolidated financial statements. Accordingly, they do not include all the information and notes necessary for a comprehensive presentation of financial position and results of operations and should be read in conjunction with the Company's Annual Report, Form 10-K for the year ended December 31, 2016. It is management's opinion that all material adjustments (consisting of normal recurring adjustments) have been made, which are necessary for a fair financial statement presentation. Significant intercompany accounts and transactions have been eliminated in consolidation. The results for the interim period are not necessarily indicative of the results to be expected for the year ending December 31, 2017.
Use of Estimates	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 at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant estimates include estimates used to review the Company’s goodwill, impairments and estimations of long-lived assets, impairment of prepaid royalties, revenue recognition on percentage of completion type contracts, allowances for uncollectible accounts, inventory valuation, warranty reserves, valuations of non-cash capital stock issuances and the valuation allowance on deferred tax assets. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable in the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.
Revision	Revision Immaterial revision was made to the condensed consolidated statement of cash flows: for the nine months ended September 30, 2016, $ 122

INVENTORIES (Tables)

INVENTORIES (Tables)	9 Months Ended
	Sep. 30, 2017
Inventory Disclosure [Abstract]
Schedule of Inventory, Current	Inventories consist of raw materials, work-in-process and finished goods and are stated at the lower of cost or market using the first-in, first-out (FIFO) method or through the moving average cost method. At September 30, 2017 and December 31, 2016, accrued liabilities included $ 1.3 1.1 (in thousands) September 30, December 31, 2017 2016 Finished goods $ 11,126 $ 9,684 Raw materials 3,267 3,357 Work-in-process 955 935 Inventory reserves (1,127) (774) Total inventories $ 14,221 $ 13,202

PREPAID EXPENSES, DEPOSITS AN30

PREPAID EXPENSES, DEPOSITS AND OTHER (Tables)	9 Months Ended
	Sep. 30, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of Prepaid Expenses, Deposits and Other Assets	(in thousands) September 30, December 31, 2017 2016 Prepaid expenses and other $ 1,733 $ 2,174 Deposits and other assets $ 1,876 $ 100

GOODWILL AND INDEFINITE-LIVED31

GOODWILL AND INDEFINITE-LIVED INTANGIBLES (Tables)	9 Months Ended
	Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The carrying value of goodwill and the activity for the nine months ended September 30, 2017 are as follows: Power and Electro - (in thousands) Mechanical Energy Other Total Balance, December 31, 2016 $ 13,083 $ 7,042 $ — $ 20,125 Currency translation adjustments 9 603 — 612 Balance, September 30, 2017 $ 13,092 $ 7,645 $ — $ 20,737

SEGMENT REPORTING (Tables)

SEGMENT REPORTING (Tables)	9 Months Ended
	Sep. 30, 2017
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	The following information represents segment activity for the three months ended September 30, 2017 and selected balance sheet items as of September 30, 2017: Power and Electro- (in thousands) Mechanical Energy Other Total Revenues from external customers $ 16,700 $ 5,096 $ — $ 21,796 Depreciation and amortization (1) 363 342 — 705 Interest expense 75 1 61 137 Profit (loss) from operations 890 (1,660) (1,249) (2,019) Segment assets 49,377 29,495 705 79,577 Other intangible assets, net 8,979 6,873 — 15,852 Goodwill 13,092 7,645 — 20,737 Expenditures for long-lived assets (2) 157 114 — 271 The following information represents segment activity for the nine months ended September 30, 2017 and selected balance sheet items as of September 30, 2017: (in thousands) Power and Energy Other Total Revenues from external customers $ 48,542 $ 13,599 $ — $ 62,141 Depreciation and amortization (1) 1,139 993 — 2,132 Interest expense 187 3 184 374 Profit (loss) from operations 1,984 (5,924) (3,739) (7,679) Segment assets 49,377 29,495 705 79,577 Other intangible assets, net 8,979 6,873 — 15,852 Goodwill 13,092 7,645 — 20,737 Expenditures for long-lived assets (2) 786 297 — 1,083 (1) For the Power and Electromechanical segment, for the three and nine months ended September 30, 2017, depreciation and amortization include $ 184 496 (2) Includes purchases of property, plant and equipment and the investment in other intangible assets. The following information represents segment activity for the three months ended September 30, 2016 and selected balance sheet items as of September 30, 2016: Power and Electro- (in thousands) Mechanical Energy Other Total Revenues from external customers $ 16,157 $ 7,100 $ — $ 23,257 Depreciation and amortization (1) 371 339 — 710 Interest expense 56 3 60 119 Profit (loss) from operations 813 (201) (1,197) (585) Segment assets 51,438 32,316 268 84,022 Other intangibles assets, net 9,461 7,541 — 17,002 Goodwill 13,102 7,403 — 20,505 Expenditures for segment assets (2) 99 255 — 354 The following information represents segment activity for the nine months ended September 30, 2016 and selected balance sheet items as of September 30, 2016: Power and Electro- (in thousands) Mechanical Energy Other Total Revenues from external customers $ 44,607 $ 22,451 $ — $ 67,058 Depreciation and amortization (1) 1,063 1,083 1 2,147 Interest expense 166 5 193 364 Profit (loss) from operations 1,038 (480) (4,503) (3,945) Segment assets 51,438 32,316 268 84,022 Other intangibles assets, net 9,461 7,541 — 17,002 Goodwill 13,102 7,403 — 20,505 Expenditures for segment assets (2) 580 545 — 1,125 (1) For the Power and Electromechanical segment, depreciation and amortization totals for the three and nine months ended September 30, 2016, include $ 125 338 (2) Includes purchases of property plant and equipment and the investment in other intangible assets.
Revenue from External Customers by Geographic Areas	The following represents revenue by country: (dollars in thousands) For the Three Months Ended September 30, 2017 2016 Amount % Amount % USA $ 13,631 62 % $ 13,152 56 % United Kingdom 3,634 17 % 4,540 20 % All Others 4,531 21 % 5,565 24 % Total $ 21,796 100 % $ 23,257 100 % (dollars in thousands) For the Nine Months Ended September 30, 2017 2016 Amount % Amount % USA $ 38,209 61 % $ 35,006 52 % United Kingdom 10,434 17 % 13,988 21 % All Others 13,498 22 % 18,064 27 % Total $ 62,141 100 % $ 67,058 100 %

INVESTMENTS AND FAIR VALUE ME33

INVESTMENTS AND FAIR VALUE MEASUREMENTS (Tables)	9 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
Fair value of cash equivalents and marketable securities	The Company’s fair value hierarchy for its cash equivalents, marketable securities and derivative instruments, including contingent consideration, as of September 30, 2017 and December 31, 2016, respectively, was as follows: (in thousands) September 30, 2017 Level 1 Level 2 Level 3 Total Money market securities $ 16 $ — $ — $ 16 Total assets $ 16 $ — $ — $ 16 Derivative instrument payable $ — $ 413 $ — $ 413 Contingent consideration — — 45 45 Total liabilities $ — $ 413 $ 45 $ 458 December 31, 2016 Level 1 Level 2 Level 3 Total Money market securities $ 16 $ — $ — $ 16 Total assets $ 16 $ — $ — $ 16 Derivative instrument payable $ — $ 467 $ — $ 467 Contingent consideration — — 103 103 Total liabilities $ — $ 467 $ 103 $ 570
Schedule of Fair Value Measurements Using Significant Unobservable	Fair Value Measurements Using Significant Unobservable Inputs (Level 3) Contingent (in thousands) consideration Balance at December 31, 2016 $ 103 Payments (61) Fair value adjustments 3 Balance at September 30, 2017 $ 45

LOSS PER COMMON SHARE (Tables)

LOSS PER COMMON SHARE (Tables)	9 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
LOSS PER COMMON SHARE	Accordingly, diluted net loss per share is the same as basic net loss per share for the three and nine months ended September 30, 2017 and 2016. For the Three Months For the Nine Months (in thousands, except share and per share amounts) Ended September 30, Ended September 30, 2017 2016 2017 2016 Net loss $ (1,902) $ (507) $ (7,324) $ (4,656) Basic and diluted weighted average number of shares outstanding 20,991,534 20,906,781 20,969,735 20,891,517 Basic and diluted loss per common share $ (0.09) $ (0.02) $ (0.35) $ (0.22)

CAPITALIZED INTEREST (Tables)

CAPITALIZED INTEREST (Tables)	9 Months Ended
	Sep. 30, 2017
Capitalized Interest [Abstract]
Components of Interest Expense and Capitalized Interest	The cost of constructing facilities, equipment and project assets includes interest costs incurred during the assets’ construction period. The components of interest expense and capitalized interest are as follows: For the Three For the Nine Months Ended Months Ended (in thousands) September 30, September 30, 2017 2016 2017 2016 Interest cost incurred $ 143 $ 123 $ 389 $ 370 Interest cost capitalized - property and equipment (6) (4) (15) (6) Interest expense, net $ 137 $ 119 $ 374 $ 364

WORKING CAPITAL LINE OF CREDI36

WORKING CAPITAL LINE OF CREDIT AND OVERDRAFT FACILITY (Tables)	9 Months Ended
	Sep. 30, 2017
Line of Credit Facility [Abstract]
Schedule of Line of Credit Facilities	During the period ended September 30, 2017, the Company’s wholly owned subsidiary, CUI, Inc., maintained a two-year revolving Line of Credit (LOC) with Wells Fargo Bank with the following terms: (in thousands) Credit Limit September Expiration Date Interest rate $ 6,000 (2) $ 1,932 (1) June 1, 2019 (2) Fixed rate at 2.25% above the LIBOR in effect on the first day of the applicable fixed-rate term, or Variable rate at 2.25% above the daily one-month LIBOR rate. (1) (2)
Schedule Of Collateral Security Agreement	The line of credit is secured by the following collateral via a security agreement with CUI Inc. and CUI-Canada at September 30, 2017: (in thousands) CUI Inc. and CUI-Canada General intangibles, net $ 8,979 CUI Inc. and CUI-Canada Accounts receivable, net $ 6,773 CUI Inc. and CUI-Canada Inventory, net $ 12,393 CUI Inc. and CUI-Canada Equipment, net $ 1,784

ACCUMULATED OTHER COMPREHENSI37

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)	9 Months Ended
	Sep. 30, 2017
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax [Abstract]
Components of Accumulated Other Comprehensive Income (Loss)	The components of accumulated other comprehensive income (loss) are as follows: (in thousands) As of September 30, As of December 31, 2017 2016 Foreign currency translation adjustment $ (3,619) $ (5,590) Accumulated other comprehensive income (loss) $ (3,619) $ (5,590)

CAPITAL LEASES (Tables)

CAPITAL LEASES (Tables)	9 Months Ended
	Sep. 30, 2017
Leases [Abstract]
Schedule of Capital Leased Assets	The following is an analysis of the leased property under capital leases by major classes as of September 30, 2017 and December 31, 2016: September 30, December 31, (in thousands) 2017 2016 Classes of Property Motor vehicles $ — $ 98 Equipment 19 19 Less: Accumulated depreciation (6) (65) $ 13 $ 52
Schedule of Capital Lease Current and Long Term Portion	The following summarizes the current and long-term portion of capital leases payable as of September 30, 2017 and December 31, 2016: September 30, December 31, (in thousands) 2017 2016 Current leases payable $ 3 $ 28 Long-term leases payable 10 12 $ 13 $ 40

NOTES PAYABLE (Tables)

NOTES PAYABLE (Tables)	9 Months Ended
	Sep. 30, 2017
Notes Payable [Abstract]
Schedule of Notes Payable	Notes payable is summarized as follows as of September 30, 2017 and December 31, 2016: September 30, December 31, (in thousands) 2017 2016 Mortgage note payable (1) $ 3,373 $ 3,439 Acquisition Note Payable - related party (2) 5,304 5,304 Ending Balance $ 8,677 $ 8,743 (1) On October 1, 2013, the funding of the purchase of the Company’s Tualatin, Oregon corporate offices from Barakel, LLC was completed. The purchase price for this asset was $ 5.1 3.7 66 3.4 93 3.3 (2) The note payable to International Electronic Devices, Inc. (formerly CUI, Inc.) is associated with the acquisition of CUI, Inc. The promissory note is due May 15, 2020 and includes a 5% interest rate per annum, with interest payable monthly and the principal due as a balloon payment at maturity. The note contains a contingent conversion feature, such that in the event of default on the note the holder of the note can, at the holder’s option, convert the note principal into common stock at $0.001 per share. As of September 30, 2017, the Company is in compliance with all terms of this promissory note and the conversion feature is not effective.

OTHER EQUITY TRANSACTIONS (Tabl

OTHER EQUITY TRANSACTIONS (Tables)	9 Months Ended
	Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award	The following shares issued during 2017 were recorded in expense or prepaid asset using the grant-date fair value of the stock: Grant date fair value recorded at Expense/ Stock Total no. issuance Date of Type of Prepaid/ issuance Reason for of (in issuance issuance Cash recipient issuance shares thousands) January, April and August 2017 Vested restricted common stock Expense Four board members Director compensation 33,956 $ 150 January, February and June 2017 Common stock Expense Three Employees Approved bonus 28,634 182 (1) January 2017 Common stock Expense Related party Q4 Royalty Fee 1,233 8 (1) January and February 2017 Common stock Expense Two Employees Cashless stock option exercises 245 — (2) May 2017 Common stock Prepaid exp/expense Third-party consultant Strategic investor marketing services 15,000 57 (3) 79,068 $ 397 (4) (1) f $ 176 (2) The Company received $— for the issuance in the cashless option exercises. (3) Amount includes $ 38 (4) Does not include stock expense of $ 130

NATURE OF OPERATIONS AND BASI41

NATURE OF OPERATIONS AND BASIS OF PRESENTATION - Additional Information (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)
Business Description and Basis Of Presentation [Line Items]
Foreign Currency Transaction Gain (Loss), Unrealized	$ 307	$ (122)
Number of Operating Segments	2
Number of Subsidiaries In Operating Segments	3
Number of Categories In Product Offerings	2
Orbital Gas Systems Limited
Business Description and Basis Of Presentation [Line Items]
Capital Stock Acquired Percentage	100.00%

INVENTORIES - Additional Inform

INVENTORIES - Additional Information (Detail) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Accrued Inventory Payable	$ 1.3	$ 1.1

INVENTORIES (Detail)

INVENTORIES (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Inventory [Line Items]
Finished goods	$ 11,126	$ 9,684
Raw materials	3,267	3,357
Work-in -process	955	935
Inventory reserves	(1,127)	(774)
Total inventories	$ 14,221	$ 13,202

PREPAID EXPENSES, DEPOSITS AN44

PREPAID EXPENSES, DEPOSITS AND OTHER - Additional Information (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016
Deposits and Other Assets Noncurrent	$ 1,876		$ 100
Prepaid Royalties [Member]
Deposits and Other Assets Noncurrent	$ 1,800	$ 1,600

PREPAID EXPENSES, DEPOSITS AN45

PREPAID EXPENSES, DEPOSITS AND OTHER - Schedule of Prepaid Expenses, Deposits and Other Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Prepaid expenses and other	$ 1,733	$ 2,174
Deposits and other assets	$ 1,876	$ 100

GOODWILL AND INDEFINITE-LIVED46

GOODWILL AND INDEFINITE-LIVED INTANGIBLES - Additional Information (Detail) $ in Millions	Sep. 30, 2017USD ($)
Indefinite-Lived Intangible Assets (Excluding Goodwill)	$ 7.3

GOODWILL AND INDEFINITE-LIVED47

GOODWILL AND INDEFINITE-LIVED INTANGIBLES (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2017USD ($)
Balance, December 31, 2016	$ 20,125
Currency translation adjustments	612
Balance, September 30, 2017	20,737
Power and Electro - Mechanical Segment
Balance, December 31, 2016	13,083
Currency translation adjustments	9
Balance, September 30, 2017	13,092
Energy Segment
Balance, December 31, 2016	7,042
Currency translation adjustments	603
Balance, September 30, 2017	7,645
Other Segment
Balance, December 31, 2016	0
Currency translation adjustments	0
Balance, September 30, 2017	$ 0

INVESTMENT AND NOTE RECEIVABLE

INVESTMENT AND NOTE RECEIVABLE - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2016	Sep. 30, 2017	Sep. 30, 2016
Investment Income, Interest	$ 5	$ 5		$ 13	$ 15
Proceeds from Collection of Notes Receivable				$ 19	$ 0
Interest Rate On Note Receivable			5.00%
Test Products International Inc [Member]
Equity Method Investment, Ownership Percentage			8.50%
Notes Receivable, Related Parties			$ 400

DERIVATIVE INSTRUMENTS - Additi

DERIVATIVE INSTRUMENTS - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2016
Gain (Loss) on Investments [Line Items]
Unrealized Gain (Loss) on Derivatives	$ 20	$ 55	$ (98)
Derivatives Swap Maturity Date		10 years

STOCK-BASED PAYMENTS FOR COMP50

STOCK-BASED PAYMENTS FOR COMPENSATION, SERVICES AND ROYALTIES - Additional information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Allocated Share-based Compensation Expense	$ 0.1	$ 0.1	$ 0.3	$ 1

SEGMENT REPORTING - Additional

SEGMENT REPORTING - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	100.00%	100.00%	100.00%	100.00%
Power and Electromechanical segment [Member]
Segment Reporting Information [Line Items]
Cost of Goods Sold, Depreciation, Depletion and Amortization	$ 184	$ 125	$ 496	$ 338
Power and Electromechanical segment [Member] | Sales Revenue, Net
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	77.00%	69.00%	78.00%	67.00%
Energy Segment [Member] | Sales Revenue, Net
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	23.00%	31.00%	22.00%	33.00%

SEGMENT REPORTING - Segment Act

SEGMENT REPORTING - Segment Activity (Detail) - USD ($) $ in Thousands		3 Months Ended				9 Months Ended
		Sep. 30, 2017		Sep. 30, 2016		Sep. 30, 2017		Sep. 30, 2016		Dec. 31, 2016
Segment Reporting Information [Line Items]
Revenues from external customers		$ 21,796		$ 23,257		$ 62,141		$ 67,058
Depreciation and amortization		705	[1]	710	[2]	2,132	[1]	2,147	[2]
Interest expense		137		119		374		364
Profit (loss) from operations		(2,019)		(585)		(7,679)		(3,945)
Segment assets		79,577		84,022		79,577		84,022		$ 79,843
Other intangibles assets, net		15,852		17,002		15,852		17,002		16,201
Goodwill		20,737		20,505		20,737		20,505		20,125
Expenditures for long-lived assets	[3]	271		354		1,083		1,125
Power and Electro Mechanical
Segment Reporting Information [Line Items]
Revenues from external customers		16,700		16,157		48,542		44,607
Depreciation and amortization		363	[1]	371	[2]	1,139	[1]	1,063	[2]
Interest expense		75		56		187		166
Profit (loss) from operations		890		813		1,984		1,038
Segment assets		49,377		51,438		49,377		51,438
Other intangibles assets, net		8,979		9,461		8,979		9,461
Goodwill		13,092		13,102		13,092		13,102
Expenditures for long-lived assets	[3]	157		99		786		580
Energy
Segment Reporting Information [Line Items]
Revenues from external customers		5,096		7,100		13,599		22,451
Depreciation and amortization		342	[1]	339	[2]	993	[1]	1,083	[2]
Interest expense		1		3		3		5
Profit (loss) from operations		(1,660)		(201)		(5,924)		(480)
Segment assets		29,495		32,316		29,495		32,316
Other intangibles assets, net		6,873		7,541		6,873		7,541
Goodwill		7,645		7,403		7,645		7,403		7,042
Expenditures for long-lived assets	[3]	114		255		297		545
Other
Segment Reporting Information [Line Items]
Revenues from external customers		0		0		0		0
Depreciation and amortization		0	[1]	0	[2]	0	[1]	1	[2]
Interest expense		61		60		184		193
Profit (loss) from operations		(1,249)		(1,197)		(3,739)		(4,503)
Segment assets		705		268		705		268
Other intangibles assets, net		0		0		0		0
Goodwill		0		0		0		0		$ 0
Expenditures for long-lived assets	[3]	$ 0		$ 0		$ 0		$ 0
[1]	For the Power and Electromechanical segment, for the three and nine months ended September 30, 2017, depreciation and amortization include $184 thousand and $496 thousand, respectively, which were classified as cost of revenues in the Condensed Consolidated Statements of Operations.
[2]	For the Power and Electromechanical segment, depreciation and amortization totals for the three and nine months ended September 30, 2016, include $125 thousand and $338 thousand, respectively, which were classified as cost of revenues in the Condensed Consolidated Statements of Operations.
[3]	Includes purchases of property, plant and equipment and the investment in other intangible assets.

SEGMENT REPORTING - Revenue By

SEGMENT REPORTING - Revenue By Country (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue By Country [Line Items]
Revenues	$ 21,796	$ 23,257	$ 62,141	$ 67,058
Concentration Risk, Percentage	100.00%	100.00%	100.00%	100.00%
USA
Revenue By Country [Line Items]
Revenues	$ 13,631	$ 13,152	$ 38,209	$ 35,006
Concentration Risk, Percentage	62.00%	56.00%	61.00%	52.00%
UNITED KINGDOM
Revenue By Country [Line Items]
Revenues	$ 3,634	$ 4,540	$ 10,434	$ 13,988
Concentration Risk, Percentage	17.00%	20.00%	17.00%	21.00%
All Others
Revenue By Country [Line Items]
Revenues	$ 4,531	$ 5,565	$ 13,498	$ 18,064
Concentration Risk, Percentage	21.00%	24.00%	22.00%	27.00%

INVESTMENTS AND FAIR VALUE ME54

INVESTMENTS AND FAIR VALUE MEASUREMENTS - Additional Information (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2017USD ($)
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	$ 3
Contingent Consideration Classified as Equity [Member]
Payments On Contingent Consideration	$ 61

INVESTMENTS AND FAIR VALUE ME55

INVESTMENTS AND FAIR VALUE MEASUREMENTS - Fair Value Hierarchy for Cash Equivalents and Marketable Securities (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair value disclosure	$ 16	$ 16
Liabilites, Fair value disclosure	458	570
Contingent Consideration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilites, Fair value disclosure	45	103
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair value disclosure	16	16
Liabilites, Fair value disclosure	0	0
Fair Value, Inputs, Level 1 | Contingent Consideration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilites, Fair value disclosure	0	0
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair value disclosure	0	0
Liabilites, Fair value disclosure	413	467
Fair Value, Inputs, Level 2 | Contingent Consideration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilites, Fair value disclosure	0	0
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair value disclosure	0	0
Liabilites, Fair value disclosure	45	103
Fair Value, Inputs, Level 3 | Contingent Consideration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilites, Fair value disclosure	45	103
Money market securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair value disclosure	16	16
Money market securities | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair value disclosure	16	16
Money market securities | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair value disclosure	0	0
Money market securities | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair value disclosure	0	0
Derivative instrument payable
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilites, Fair value disclosure	413	467
Derivative instrument payable | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilites, Fair value disclosure	0	0
Derivative instrument payable | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilites, Fair value disclosure	413	467
Derivative instrument payable | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilites, Fair value disclosure	$ 0	$ 0

INVESTMENTS AND FAIR VALUE ME56

INVESTMENTS AND FAIR VALUE MEASUREMENTS - Contingent consideration (Detail) - Fair Value, Inputs, Level 3 [Member] $ in Thousands	9 Months Ended
	Sep. 30, 2017USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance at December 31, 2016	$ 103
Payment	(61)
Quarterly fair value adjustment	3
Balance at September 30, 2017	$ 45

LOSS PER COMMON SHARE - Additio

LOSS PER COMMON SHARE - Additional Information (Detail) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share Disclosure [Line Items]
Options nonvested excluded from computation of diluted earnings per share	1	1	1	1

LOSS PER COMMON SHARE - Calcula

LOSS PER COMMON SHARE - Calculation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net loss	$ (1,902)	$ (507)	$ (7,324)	$ (4,656)
Basic and diluted weighted average number of shares outstanding (in shares)	20,991,534	20,906,781	20,969,735	20,891,517
Basic and diluted loss per common share (in dollars per share)	$ (0.09)	$ (0.02)	$ (0.35)	$ (0.22)

CAPITALIZED INTEREST - Componen

CAPITALIZED INTEREST - Components of interest expense and capitalized interest (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Capitalized Interest [Line Items]
Interest cost incurred	$ 143	$ 123	$ 389	$ 370
Interest cost capitalized - property and equipment	(6)	(4)	(15)	(6)
Interest expense, net	$ 137	$ 119	$ 374	$ 364

INCOME TAXES - Additional Infor

INCOME TAXES - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Tax Disclosure [Line Items]
Provision (benefit) for taxes	$ (177)	$ (191)	$ (560)	$ 82
Effective income tax rate	8.50%	27.40%	7.10%	(1.80%)
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount			$ 51

WORKING CAPITAL LINE OF CREDI61

WORKING CAPITAL LINE OF CREDIT AND OVERDRAFT FACILITY - Additional Information (Detail) $ in Thousands, £ in Millions		9 Months Ended
		Sep. 30, 2017USD ($)	Jan. 01, 2018USD ($)	Dec. 31, 2016USD ($)	Oct. 05, 2016GBP (£)
Line of Credit Facility [Line Items]
Bank Overdrafts		$ 1,022		$ 0
Wells Fargo Bank [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	[1]	$ 6,000
Line of Credit Facility, Interest Rate Description		Fixed rate at 2.25% above the LIBOR in effect on the first day of the applicable fixed-rate term, or Variable rate at 2.25% above the daily one-month LIBOR rate.
Line of Credit Facility, Expiration Date	[1]	Jun. 1, 2019
Wells Fargo Bank [Member] | Scenario, Forecast [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			$ 4,000
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit, Current		$ 1,900
Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases		4,100
Revolving Credit Facility [Member] | CUI, Inc [Member]
Line of Credit Facility [Line Items]
Capital expenditures, exceed limit		1,750
Multi-Currency Variable Rate Overdraft Facility [Member] | Wells Fargo Bank N.A [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 2,000			£ 1.5
Line of Credit Facility, Interest Rate Description		The interest rate on the facility is a base rate plus a 2.25% margin.
Line of Credit Facility, Expiration Date		Oct. 5, 2021
Line of Credit Facility, Interest Rate Percentage		2.50%
Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases		$ 1,000
Bank Overdrafts		$ 1,000
[1]	During the second quarter of 2017, the Company modified its LOC agreement, which included extending the expiration date, adding CUI-Canada assets as collateral, and modifying restrictive debt covenants and increasing the interest rate on the facility. During the third quarter of 2017, the Company further modified its LOC agreement, temporarily increasing the credit limit until December 31, 2017 to $6 million from $4 million.

WORKING CAPITAL LINE OF CREDI62

WORKING CAPITAL LINE OF CREDIT AND OVERDRAFT FACILITY - Revolving Line Of Credit (Detail) - Wells Fargo Bank [Member] $ in Thousands	9 Months Ended
	Sep. 30, 2017USD ($)
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 6,000	[1]
Line of Credit Facility, Expiration Date	Jun. 1, 2019	[1]
Line of Credit Facility, Interest Rate Description	Fixed rate at 2.25% above the LIBOR in effect on the first day of the applicable fixed-rate term, or Variable rate at 2.25% above the daily one-month LIBOR rate.
Line of Credit Facility	$ 1,932	[2]
[1]	During the second quarter of 2017, the Company modified its LOC agreement, which included extending the expiration date, adding CUI-Canada assets as collateral, and modifying restrictive debt covenants and increasing the interest rate on the facility. During the third quarter of 2017, the Company further modified its LOC agreement, temporarily increasing the credit limit until December 31, 2017 to $6 million from $4 million.
[2]	As a result of the Company’s cash management system, checks issued but not presented to the bank for payment may create negative book cash balances. When those checks are presented for payment if there isn't sufficient cash in the bank account, the checks would be honored by the bank with a corresponding increase to CUI's draw on its line of credit. There were no negative book cash balances included in the balance on the line of credit as of September 30, 2017.

WORKING CAPITAL LINE OF CREDI63

WORKING CAPITAL LINE OF CREDIT AND OVERDRAFT FACILITY - Security Agreement (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
General intangibles, net	$ 15,852	$ 16,201	$ 17,002
Inventory, net	14,221	13,202
Equipment, net	11,260	$ 10,952
CUI Inc And CUI Canada [Member]
General intangibles, net	8,979
Accounts receivable, net	6,773
Inventory, net	12,393
Equipment, net	$ 1,784

ACCUMULATED OTHER COMPREHENSI64

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Components of accumulated other comprehensive income (loss) (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Accumulated other comprehensive gain (loss) [Line Items]
Foreign currency translation adjustment	$ (3,619)	$ (5,590)
Accumulated other comprehensive income (loss)	$ (3,619)	$ (5,590)

CAPITAL LEASES - Analysis of Le

CAPITAL LEASES - Analysis of Leased Property Under Capital Leases (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Analysis of the leased property under capital leases [Line Items]
Less: Accumulated depreciation	$ (6)	$ (65)
Capital leases, balance sheet, assets by major class, net, total	13	52
Motor Vehicles
Analysis of the leased property under capital leases [Line Items]
Capital leased assets, gross	0	98
Equipment
Analysis of the leased property under capital leases [Line Items]
Capital leased assets, gross	$ 19	$ 19

CAPITAL LEASES - Current and Lo

CAPITAL LEASES - Current and Long Term Portion of Capital Leases (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Capital Lease current and long term portion [Line Items]
Current leases payable	$ 3	$ 28
Long-term leases payable	10	12
Total leases payable	$ 13	$ 40

NOTES PAYABLE - Additional Info

NOTES PAYABLE - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	Oct. 01, 2013	Sep. 30, 2017	Dec. 31, 2016
Notes Payable Convertible Notes Payable and Convertible Notes Payable Related Parties [Line Items]
Debt instrument, annual principal payment		$ 66
Mortgage promissory note payable		3,400
Long-term Debt, Current Maturities		93
Long term mortgage note payable		$ 3,300
Common Stock, Par or Stated Value Per Share		$ 0.001	$ 0.001
Tualatin, Oregon Corporate Office Acquisition
Notes Payable Convertible Notes Payable and Convertible Notes Payable Related Parties [Line Items]
Purchase of real estate property	$ 5,100
Debt instrument, description of variable rate basis	2% above LIBOR
Mortgage promissory note payable	$ 3,700
International Electronic Devices, Inc.
Notes Payable Convertible Notes Payable and Convertible Notes Payable Related Parties [Line Items]
Debt maturity date		May 15, 2020
Interest accrues rate		5.00%
Common Stock, Par or Stated Value Per Share		$ 0.001

NOTES PAYABLE - Summary of Note

NOTES PAYABLE - Summary of Notes Payable (Detail) - USD ($) $ in Thousands		Sep. 30, 2017	Dec. 31, 2016
Schedule Of Notes Payable Convertible Notes Payable and Convertible Notes Payable Related Parties [Line Items]
Acquisition Note Payable - related party		$ 5,304	$ 5,304
Convertible notes payable
Schedule Of Notes Payable Convertible Notes Payable and Convertible Notes Payable Related Parties [Line Items]
Mortgage note payable	[1]	3,373	3,439
Acquisition Note Payable - related party	[2]	5,304	5,304
Ending Balance		$ 8,677	$ 8,743
[1]	On October 1, 2013, the funding of the purchase of the Company’s Tualatin, Oregon corporate offices from Barakel, LLC was completed. The purchase price for this asset was $5.1 million. The purchase was funded, in part, by a promissory note payable to Wells Fargo Bank in the amount of $3.7 million plus interest at the rate of 2% above LIBOR, payable over ten years with a balloon payment due at maturity. It was secured by a deed of trust on the purchased property which was executed by CUI Properties, LLC and guaranteed by CUI Global, Inc. During the nine months ended September 30, 2017, the Company made principal payments of $66 thousand against the mortgage promissory note payable. At September 30, 2017, the balance owed on the mortgage promissory note payable was $3.4 million, of which $93 thousand and $3.3 million were in current and long-term liabilities, respectively. See Note 14, Working Capital Line of Credit and Overdraft Facility, for more information on the Company's debt covenants.
[2]	The note payable to International Electronic Devices, Inc. (formerly CUI, Inc.) is associated with the acquisition of CUI, Inc. The promissory note is due May 15, 2020 and includes a 5% interest rate per annum, with interest payable monthly and the principal due as a balloon payment at maturity. The note contains a contingent conversion feature, such that in the event of default on the note the holder of the note can, at the holder’s option, convert the note principal into common stock at $0.001 per share. As of September 30, 2017, the Company is in compliance with all terms of this promissory note and the conversion feature is not effective.

CONCENTRATIONS - Additional Inf

CONCENTRATIONS - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Concentration Risk [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
United Kingdom
Concentration Risk [Line Items]
Concentration risk, percentage	17.00%	20.00%	17.00%	21.00%
Supplier Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage	11.00%	8.00%	12.00%	8.00%
Sales Revenue | Power and Electromechanical segment [Member] | Digi-Key Electronics [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	27.00%	19.00%	26.00%	19.00%
Sales Revenue | United Kingdom
Concentration Risk [Line Items]
Concentration risk, percentage	17.00%	20.00%	17.00%	21.00%
Accounts Receivable
Concentration Risk [Line Items]
Concentration risk, percentage					30.00%
Gross trade accounts receivable from continuing operations	$ 11.5		$ 11.5		$ 9.5
Accounts Receivable | Energy Segment [Member] | Scotia Gas Networks plc [Member]
Concentration Risk [Line Items]
Concentration risk, percentage					10.00%
Accounts Receivable | Energy Segment [Member] | Socrate spa [Member]
Concentration Risk [Line Items]
Concentration risk, percentage					10.00%
Accounts Receivable | Energy Segment [Member] | National Grid [Member]
Concentration Risk [Line Items]
Concentration risk, percentage			16.00%		10.00%
Accounts Receivable | United Kingdom
Concentration Risk [Line Items]
Concentration risk, percentage			33.00%		27.00%
Accounts Receivable | CANADA
Concentration Risk [Line Items]
Concentration risk, percentage			11.00%

OTHER EQUITY TRANSACTIONS - Add

OTHER EQUITY TRANSACTIONS - Additional Information (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation	$ 130
Bonus And Royalty Expenses Incurred		$ 176
Prepaid Expense, Current	38
Cashless Option Exercise [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation	$ 0

OTHER EQUITY TRANSACTIONS - Pre

OTHER EQUITY TRANSACTIONS - Prepaid Asset Using Grant-Date-Fair Value (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2017USD ($)shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Issued During Period, Shares, Share-based Compensation, Gross | shares	79,068
Stock Issued During Period, Value, Share-based Compensation, Gross | $	$ 397	[1]
Vested Restricted Common Stock One [Member] | Director Compensation [Member] | Four Board [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Issued During Period, Shares, Share-based Compensation, Gross | shares	33,956
Stock Issued During Period, Value, Share-based Compensation, Gross | $	$ 150
Date Of Issuance	January, April and August 2017
Common Stock One [Member] | Approved Bonus [Member] | Three Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Issued During Period, Shares, Share-based Compensation, Gross | shares	28,634
Stock Issued During Period, Value, Share-based Compensation, Gross | $	$ 182	[2]
Date Of Issuance	January, February and June 2017
Common Stock Two [Member] | Pursuant To Royalty Agreement [Member] | Related Party [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Issued During Period, Shares, Share-based Compensation, Gross | shares	1,233
Stock Issued During Period, Value, Share-based Compensation, Gross | $	$ 8	[2]
Date Of Issuance	January 2,017
Common Stock Three [Member] | Cashless stock option exercise [Member] | Two Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Issued During Period, Shares, Share-based Compensation, Gross | shares	245
Stock Issued During Period, Value, Share-based Compensation, Gross | $	$ 0	[3]
Date Of Issuance	January and February 2017
Common Stock Four [Member] | Strategic Investor Marketing Services [Member] | Third-Party Consultant [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Issued During Period, Shares, Share-based Compensation, Gross | shares	15,000
Stock Issued During Period, Value, Share-based Compensation, Gross | $	$ 57	[4]
Date Of Issuance	May 2,017
[1]	Does not include stock expense of $130 thousand included in accrued liabilities at September 30, 2017 for unissued stock.
[2]	Bonuses and royalty of $176 thousand were accrued and expensed in 2016.
[3]	The Company received $— for the issuance in the cashless option exercises.
[4]	Amount includes $38 thousand that was included in prepaid expense at September 30, 2017.

SUBSEQUENT EVENT - Additional I

SUBSEQUENT EVENT - Additional Information (Detail) - USD ($) $ in Thousands	Oct. 23, 2017	Oct. 31, 2017
Subsequent Event
Subsequent Event [Line Items]
Stock Issued During Period, Shares, New Issues	7,392,856
Shares Issued, Price Per Share	$ 2.80
Proceeds from Issuance or Sale of Equity	$ 19,200
Repayments of Lines of Credit		$ 1,900
Subsequent Event | Over-Allotment Option [Member]
Subsequent Event [Line Items]
Stock Issued During Period, Shares, New Issues	964,285