Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2014	Mar. 16, 2015	Jun. 30, 2014
Document Information [Line Items]
Document Type	10-K
Amendment Flag	true
Document Period End Date	Dec. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Entity Registrant Name	CUI Global, Inc.
Entity Central Index Key	0001108967
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$ 134,839,597
Trading Symbol	CUI
Entity Common Stock, Shares Outstanding		20,780,395
Amendment Description	This Amendment No. 1 to the Annual Report on Form 10-K of CUI Global, Inc., for the fiscal year ended December 31, 2014, as filed with the Commission on March 16, 2015 and amended to date (the “Form 10-K/A”), is being filed for the purpose of amending:(i) Part II, Item 9B, Other Information, by adding the voting results for the Annual Meeting of Shareholders held on November 24, 2014. (ii) Part III, Item 11, Executive Compensation, by adding to section Compensation Discussion and Analysis a subsection entitled Voting Results on Executive Compensation (Say-on-Pay) Advisory Vote and to discuss how we considered the results of the most recent shareholder advisory vote on executive compensation as required by section 14A of the Exchange Act (15 U.S.C. 78n-1) or §240.14a-20 in determining compensation policies and decisions that affected the registrant's executive compensation decisions and policies. (iii) Part II Item 13, Certain Relationships and Related Transactions – to disclose the information required by Item 404(b) of Regulation S-K and to include the disclosure of a previously omitted related-party transaction. (iv) to include the second paragraph of text on the signature page as well as the signatures of at least the majority of the board of directors as required by General Instruction D(2)(a) to Form 10-K. This amendment also includes currently dated certifications from each of our Chief Executive Officer and our Chief Financial Officer, as required by Rule 12b-15 of the Securities Exchange Act of 1934, as amended, for amendments to an Annual Report on Form 10-K. (v) A typographical error is corrected on page F-7 at line item “Balance, December 31, 2011” in the Consolidated Statements of Changes in Stockholders’ Equity, For the Years Ended December 31, 2014, 2013 and 2012.Except as described above, no other changes have been made to the Original Filing. The Original Filing continues to speak as of the date of the Original Filing, and we have not updated the disclosures contained therein to reflect any events which occurred at a date subsequent to the filing of the Original Filing other than as expressly indicated in this Amendment No. 1. This Annual Report on Form 10-K and the documents incorporated herein by reference contain forward-looking statements that have been made pursuant to the provisions of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements are based on current expectations, estimates and projections about our industry, management's beliefs and assumptions made by management. Words such as "anticipates," "expects," "intends," "plans," "believes," "seeks," "estimates," variations of such words and similar expressions are intended to identify such forward-looking statements. These statements are not guarantees of future performance and are subject to certain risks, uncertainties and assumptions that are difficult to predict; therefore, actual results and outcomes may differ materially from what is expressed or forecasted in any such forward-looking statements. Consequently, all of the forward-looking statements made in this Annual Report are qualified by these cautionary statements and there can be no assurance that the actual results anticipated by management will be realized or, even if substantially realized, that they will have the expected consequences to or effects on our business operations.