Discontinued Operations (Narrative) (Details) (USD $)	12 Months Ended			0 Months Ended	3 Months Ended	0 Months Ended		1 Months Ended	0 Months Ended
	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012	Oct. 01, 2012	Dec. 29, 2013	Apr. 28, 2013	Apr. 29, 2013	Dec. 30, 2012	Apr. 28, 2013	Mar. 19, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net cash proceeds from the sale of discontinued operations	$ 283,000	$ 1,573,000	$ 1,180,000
Goodwill impairment	0	0	102,715,000
Asset impairment	864,000	4,820,000	0
Banking Security Systems Integration Business Unit
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 the sale of discontinued operations	300,000	300,000		1,200,000	13,000
Proceeds from sale of business unit, promissory note				1,400,000
Promissory note variable interest rate basis				30 day LIBOR
Promissory note variable rate basis spread				5.50%
Gain (loss) on disposal		13,000	(15,000)
Maximum contingent consideration payment				900,000
Asset impairment		0	1,442,000
Checkview Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net cash proceeds from the sale of discontinued operations							1,300,000
Gain (loss) on disposal		(13,611,000)	0
Goodwill impairment								3,300,000
Asset impairment		0	329,000
Disposal Group, Including Discontinued Operation, Sale Price						5,400,000			5,400,000	5,400,000
Divestiture of businesses, working capital adjustment, basis										17,900,000
Divestiture of business, working capital adjustment						4,100,000			4,100,000
Proceeds from Divestiture of Businesses, Receivable from Buyer, Amount						200,000			200,000
Liabilities of disposal group, including discontinued operation	900,000
Divestiture of business, selling costs incurred						1,100,000
Guarantor obligations, maximum exposure, undiscounted	3,500,000
Guarantor obligations, current carrying value	100,000
Divestiture of business, transition services income, net of transition services expense	13,000	132,000
Divestiture of business, costs incurred to carve-out the CheckView® business from our enterprise resource planning system for the buyer		$ 400,000
Checkview Business | Maximum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transition services agreement, contract term									1 year
Checkview Business | Minimum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transition services agreement, contract term									60 days