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Acquisitions (Narrative) (Details) $ in Thousands, £ in Millions			1 Months Ended	3 Months Ended			12 Months Ended
	May 01, 2017 USD ($)	Apr. 06, 2017 GBP (£)	Oct. 31, 2017 USD ($)	Mar. 30, 2018 USD ($)	Mar. 30, 2018 GBP (£)	Mar. 31, 2017 USD ($)	Dec. 29, 2017 USD ($)	Dec. 29, 2017 GBP (£)
Business Acquisition [Line Items]
Non-cash stock compensation expense				$ 2,684		$ 2,100
Jibe Consulting, Inc [Member]
Business Acquisition [Line Items]
Effective date of acquisition	May 01, 2017
Purchase consideration	$ 5,400
Purchase consideration, common stock	$ 3,600
Common stock vesting period	4 years
Contingent consideration	$ 11,000
Contingent consideration performance period	18 months
Non-cash stock compensation expense				$ 600			$ 1,500
Purchase price allocation evaluation period from acquisition date	12 months
Contributed total revenue							12,300
Contribution before depreciation, amortization, interest, corporate overhead allocation and taxes							1,200
Acquisition related costs							200
Jibe Consulting, Inc [Member] | Minimum [Member]
Business Acquisition [Line Items]
Amortization period	2 years
Jibe Consulting, Inc [Member] | Maximum [Member]
Business Acquisition [Line Items]
Amortization period	5 years
Jibe Consulting, Inc [Member] | Cash Contingent Consideration [Member]
Business Acquisition [Line Items]
Contingent consideration	$ 6,600
Jibe Consulting, Inc [Member] | Stock Based Contingent Consideration [Member]
Business Acquisition [Line Items]
Contingent consideration	$ 4,400
Aecus Limited [Member]
Business Acquisition [Line Items]
Effective date of acquisition		Apr. 06, 2017
Purchase consideration | £		£ 3.2
Contingent consideration performance period		12 months
Purchase price allocation evaluation period from acquisition date		12 months
Contributed total revenue							3,900
Contribution before depreciation, amortization, interest, corporate overhead allocation and taxes							500
Acquisition related costs							$ 100
Acquired percentage		100.00%
Cash and non-cash compensation benefit (expense) | £					£ 0.6			£ (1.0)
Aecus Limited [Member] | Minimum [Member]
Business Acquisition [Line Items]
Amortization period		2 years
Aecus Limited [Member] | Maximum [Member]
Business Acquisition [Line Items]
Amortization period		5 years
Aecus Limited [Member] | Cash Contingent Consideration [Member] | Sellers [Member]
Business Acquisition [Line Items]
Contingent consideration | £		£ 2.4
Aecus Limited [Member] | Cash Contingent Consideration [Member] | Key Personnel [Member]
Business Acquisition [Line Items]
Contingent consideration | £		0.3
Aecus Limited [Member] | Stock Based Contingent Consideration [Member] | Key Personnel [Member]
Business Acquisition [Line Items]
Contingent consideration | £		£ 0.3
The Chartered Institute of Management Accountants [Member]
Business Acquisition [Line Items]
Purchase consideration			$ 2,000
Amortization period			4 years

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