Discontinued Operations (Selected Financial Information Included In Earnings) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended	12 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 24, 2012	Jun. 30, 2013	Jun. 24, 2012	Jun. 24, 2012 Banking Security Systems Integration Business Unit [Member]	Jun. 24, 2012 Banking Security Systems Integration Business Unit [Member]	Dec. 30, 2012 Banking Security Systems Integration Business Unit [Member]	Jun. 30, 2013 Checkview Business [Member]	Jun. 24, 2012 Checkview Business [Member]	Jun. 30, 2013 Checkview Business [Member]	Jun. 24, 2012 Checkview Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenue					$ 3,996	$ 7,696		$ 3,541	$ 20,792	$ 16,084	$ 38,895
Gross profit					509	1,076		307	2,335	282	5,671
Selling, general, and administrative expenses					777	1,664		1,652	3,180	3,970	6,552
Disposal group including discontinued operations impairment of intangible assets excluding goodwill			0	672	672	672
Disposal Group, Including Discontinued Operation, Goodwill Impairment					370	370
Research and development								26	125	105	217
Operating loss					(1,310)	(1,630)		(1,371)	(970)	(3,793)	(1,098)
Loss on disposal							(15)	(13,024)	0	(13,024)	0
Loss from discontinued operations before income taxes					(1,310)	(1,630)		(14,395)	(970)	(16,817)	(1,098)
Loss from discontinued operations, net of tax	$ (14,329)	$ (2,357)	$ (16,885)	$ (2,725)	$ (1,310)	$ (1,630)		$ 14,329	$ (1,047)	$ 16,885	$ (1,095)