Per share amounts (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 27, 2014	Jun. 28, 2013	Jun. 27, 2014	Jun. 28, 2013
Per share amounts [Abstract]
Net loss	$ (7,839)	$ (5,221)	$ (16,870)	$ (12,350)
Less: Net (loss) earnings attributable to non-controlling interest	(30)	9	(16)	(5)
Net loss attributable to Pulse Electronics Corporation	$ (7,809)	$ (5,230)	$ (16,854)	$ (12,345)
Basic loss per share [Abstract]
Shares (in shares)	17,322,000	7,994,000	14,992,000	7,976,000
Per share amount (in dollars per share)	$ (0.45)	$ (0.65)	$ (1.12)	$ (1.55)
Diluted loss per share [Abstract]
Shares (in shares)	17,322,000	7,994,000	14,992,000	7,976,000
Per share amount (in dollars per share)	$ (0.45)	$ (0.65)	$ (1.12)	$ (1.55)
Stock options outstanding (in shares)	300,000	400,000	300,000	400,000
Unvested restricted shares outstanding (in shares)	900,000	100,000	900,000	100,000