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Per share amounts (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 26, 2014	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 27, 2013	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Dec. 26, 2014	Dec. 27, 2013	Dec. 28, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Net loss	$ (9,587)	$ (6,401)	$ (7,839)	$ (9,031)	$ (7,084)	$ (7,588)	$ (5,221)	$ (7,130)	$ (32,858)	$ (27,023)
Less: Net (loss) income attributable to non-controlling interest	(33)	47	(30)	14	72	44	9	(14)	(2)	111
Net loss attributable to Pulse Electronics Corporation	$ (9,554)us-gaap_NetIncomeLoss	$ (6,448)us-gaap_NetIncomeLoss	$ (7,809)us-gaap_NetIncomeLoss	$ (9,045)us-gaap_NetIncomeLoss	$ (7,156)us-gaap_NetIncomeLoss	$ (7,632)us-gaap_NetIncomeLoss	$ (5,230)us-gaap_NetIncomeLoss	$ (7,116)us-gaap_NetIncomeLoss	$ (32,856)us-gaap_NetIncomeLoss	$ (27,134)us-gaap_NetIncomeLoss
Basic and diluted loss per share:
Weighted average basic shares outstanding (in shares)									16,278	7,994
Per share amount (in dollars per share)									$ (2.02)us-gaap_EarningsPerShareBasic	$ (3.39)us-gaap_EarningsPerShareBasic
Stock options outstanding (in shares)					343					343
Stock Options [Member]
Basic and diluted loss per share:
Stock options outstanding (in shares)	312				343				312	343	127
Restricted Stock [Member]
Basic and diluted loss per share:
Unvested restricted shares outstanding (in shares)	574				300				574	300	104