Discontinued Operations (Narrative) (Details) (USD $)	9 Months Ended		0 Months Ended	9 Months Ended	0 Months Ended		3 Months Ended		9 Months Ended		12 Months Ended		0 Months Ended		0 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Oct. 01, 2012 Banking Security Systems Integration Business Unit	Sep. 28, 2014 Banking Security Systems Integration Business Unit	Apr. 28, 2013 Checkview Business	Apr. 29, 2013 Checkview Business	Sep. 28, 2014 Checkview Business	Sep. 29, 2013 Checkview Business	Sep. 28, 2014 Checkview Business	Sep. 29, 2013 Checkview Business	Dec. 29, 2013 Checkview Business	Mar. 19, 2013 Checkview Business	Apr. 28, 2013 Checkview Business Maximum	Dec. 29, 2013 Checkview Business Maximum	Apr. 28, 2013 Checkview Business Minimum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale of business unit, sale price			$ 3,500,000
Net cash proceeds from sale of business unit	212,000	1,502,000	1,200,000	200,000		1,300,000
Proceeds from divestiture of business, promissory note, amount			1,400,000
Proceeds from divestiture of business, promissory note, basis spread on variable rate			5.50%
Business acquisition, purchase price					5,400,000							5,400,000
Target working capital												17,900,000
Divestiture of business, working capital adjustment					4,100,000
Proceeds from divestiture of businesses, receivable from buyer, amount					200,000
Divestiture of business, contingent consideration, potential cash payment														900,000
Divestiture of business, selling costs incurred					1,100,000
Contract term													1 year		60 days
Guarantor obligations, maximum exposure, undiscounted							3,600,000		3,600,000
Guarantor obligations, current carrying value							100,000		100,000
Divestiture of business, transition services income, net of transition services expense							0		13,000
Divestiture of business, costs incurred to carve-out the CheckView® business from our enterprise resource planning system for the buyer							400,000
Loss on sale on business							$ 0	$ 19,000	$ 0	$ 13,043,000	$ 13,600,000