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Goodwill and Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2013	Mar. 31, 2013
Summary of Finite-Lived Intangible Assets [Line Items]
Finite-life intangible assets, Gross Carrying Amount	$ 10,351	$ 8,849
Finite-life intangible assets, Accumulated Amortization	(2,886)	(2,398)
Total finite-life intangible assets, Net	7,465	6,451
Indefinite-life intangible assets gross	1,227	1,227
Indefinite-life intangible assets, Accumulated Amortization	0	0
Indefinite-life intangible assets	1,227	1,227
Intangible assets, Gross Carrying Amount	11,578	10,076
Intangible assets, Accumulated Amortization	(2,886)	(2,398)
Total intangible assets, net	8,692	7,678
Customer relationships [Member]
Summary of Finite-Lived Intangible Assets [Line Items]
Finite-life intangible assets, Gross Carrying Amount	6,913	5,508
Finite-life intangible assets, Accumulated Amortization	(1,205)	(981)
Total finite-life intangible assets, Net	5,708	4,527
Trademarks [Member]
Summary of Finite-Lived Intangible Assets [Line Items]
Finite-life intangible assets, Gross Carrying Amount	1,335	1,240
Finite-life intangible assets, Accumulated Amortization	(379)	(274)
Total finite-life intangible assets, Net	956	966
Trade secrets [Member]
Summary of Finite-Lived Intangible Assets [Line Items]
Finite-life intangible assets, Gross Carrying Amount	962	962
Finite-life intangible assets, Accumulated Amortization	(736)	(640)
Total finite-life intangible assets, Net	226	322
Carrier relationships [Member]
Summary of Finite-Lived Intangible Assets [Line Items]
Finite-life intangible assets, Gross Carrying Amount	800	800
Finite-life intangible assets, Accumulated Amortization	(237)	(177)
Total finite-life intangible assets, Net	563	623
Other finite-life intangible assets [Member]
Summary of Finite-Lived Intangible Assets [Line Items]
Finite-life intangible assets, Gross Carrying Amount	341	339
Finite-life intangible assets, Accumulated Amortization	(329)	(326)
Total finite-life intangible assets, Net	$ 12	$ 13

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