Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Sep. 27, 2014	Sep. 28, 2013		Sep. 27, 2014 segment		Sep. 28, 2013		Mar. 31, 2014
Segment Reporting Information [Line Items]
Number of operating segments				4
Revenues	$ 248,873	$ 246,810		$ 494,099		$ 493,707
Gross profit	73,709	77,128		148,938		154,159
Operating income (loss)	7,050	13,529		15,614		25,981
Depreciation expense	1,676	1,565		3,394		2,940
Intangibles amortization	2,643	3,109		5,293		6,418
Capital expenditures	1,613	2,087		3,522		4,090
Assets	706,994	857,933		706,994		857,933		712,029
Operating Segments [Member] | North America Products [Member]
Segment Reporting Information [Line Items]
Revenues	23,167	21,615		42,894		42,651
Gross profit	9,683	9,377		17,642		18,289
Operating income (loss)	1,860	2,624	[1]	2,089	[1]	3,503	[1]
Depreciation expense	541	500		1,091		827
Intangibles amortization	0	0		0		0
Capital expenditures	607	907		967		2,173
Assets	94,720	135,387		94,720		135,387
Operating Segments [Member] | North America Services [Member]
Segment Reporting Information [Line Items]
Revenues	197,519	194,518		391,784		384,184
Gross profit	53,462	56,220		108,679		111,407
Operating income (loss)	5,404	9,928	[1]	12,857	[1]	19,576	[1]
Depreciation expense	932	878		1,879		1,744
Intangibles amortization	2,643	3,103		5,290		6,406
Capital expenditures	866	1,052		2,283		1,545
Assets	536,300	618,158		536,300		618,158
Operating Segments [Member] | International Products [Member]
Segment Reporting Information [Line Items]
Revenues	21,382	21,576		44,874		48,748
Gross profit	8,923	9,565		18,912		20,366
Operating income (loss)	(252)	924		51		2,573
Depreciation expense	166	137		346		276
Intangibles amortization	0	0		0		0
Capital expenditures	97	95		229		320
Assets	48,544	67,293		48,544		67,293
Operating Segments [Member] | International Services [Member]
Segment Reporting Information [Line Items]
Revenues	6,805	9,101		14,547		18,124
Gross profit	1,641	1,966		3,705		4,097
Operating income (loss)	38	53		617		329
Depreciation expense	37	50		78		93
Intangibles amortization	0	6		3		12
Capital expenditures	43	33		43		52
Assets	27,430	37,095		27,430		37,095
Scenario, Adjustment [Member] | Operating Segments [Member] | North America Products [Member]
Segment Reporting Information [Line Items]
Operating income (loss)		(250)	[1]	(1,218)	[1]	(475)	[1]
Scenario, Adjustment [Member] | Operating Segments [Member] | North America Services [Member]
Segment Reporting Information [Line Items]
Operating income (loss)		$ 250	[1]	$ 1,218	[1]	$ 475	[1]

[1] These results reflect a reclassification of expense that reduced Operating income (loss) in North America Products by $250, $1,218 and $475 in 2Q14, 2QYTD15 and 2QYTD14, respectively, with a corresponding increase of the same amounts for Operating income (loss) in North America Services. This reclassification had no effect on our consolidated financial results.