NOTES PAYABLE - Summary of Notes Payable (Detail) - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
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]	3,439	3,524
Acquisition Note Payable - related party	[2]	5,304	5,304
Ending Balance		$ 8,743	$ 8,828

[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 2016, the Company made principal payments of approximately $85 thousand against the mortgage promissory note payable. At December 31, 2016, the balance owed on the mortgage promissory note payable was $3.4 million of which $89 thousand and $3.3 million were in current and long-term liabilities, respectively. At December 31, 2015, the balance owed on the mortgage promissory note payable was $3.5 million of which $85 thousand and $3.4 million were in current and long-term liabilities, respectively.

[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 December 31, 2016, the Company is in compliance with all terms of this promissory note and the conversion feature is not effective.