ACQUISITION - Summary of Unaudited Proforma Information (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014
Adjustments
Business Acquisition [Line Items]
Gross revenue	[1]	$ 0	$ 0
Total expenses	[1]	31	186
Pro Forma
Business Acquisition [Line Items]
Gross revenue		91,077	92,539
Total expenses		97,470	96,836
Net income (loss)		(6,393)	(4,297)
CUI Global Inc.
Business Acquisition [Line Items]
Gross revenue		86,240	76,045
Total expenses		92,227	78,846
Net income (loss)		(5,987)	(2,801)
Tectrol, Inc.
Business Acquisition [Line Items]
Gross revenue		4,837	16,494
Total expenses		5,212	17,804
Net income (loss)		$ (375)	$ (1,310)

[1] Adjustment to recognize the estimated depreciation and amortization expense for each of the presented periods assuming amortization of the intangible assets and depreciation of tangible assets over their estimated useful lives. Estimated depreciation and amortization for the unaudited pro forma condensed consolidated statements of operations are $31 thousand and $0.2 million for 2015 and 2014, respectively.