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Acquisitions (Narrative) (Details) $ in Thousands, £ in Millions			1 Months Ended	3 Months Ended
	May 01, 2017 USD ($)	Apr. 06, 2017 GBP (£)	Oct. 31, 2017 USD ($)	Mar. 29, 2019 USD ($)	Mar. 29, 2019 GBP (£)	Mar. 30, 2018 USD ($)
Business Acquisition [Line Items]
Non-cash stock compensation expense				$ 1,704		$ 2,684
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
Jibe Consulting, Inc [Member] | Cost of Sales [Member]
Business Acquisition [Line Items]
Non-cash stock compensation expense				300
Jibe Consulting, Inc [Member] | Selling Shareholder's [Member]
Business Acquisition [Line Items]
Cash compensation benefit				1,100
Jibe Consulting, Inc [Member] | Key Employees [Member]
Business Acquisition [Line Items]
Cash compensation benefit				$ 100
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
Acquired percentage		100.00%
Cash and non-cash compensation benefit | £					£ 0.5
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

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