Summary Of Significant Accounting Policies (Comparison of Financial Statements as Previously Filed - Statement of Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended		12 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Dec. 29, 2013
Net earnings (loss)	$ 9,725	$ (20,913)	$ (18,927)
Depreciation and amortization	12,490	13,666
Amortization of debt issuance costs	217	821
Interest on financing liability	1,127	1,013
Deferred taxes		(768)
Stock-based compensation	2,898	3,859
Provision for losses on accounts receivable	473	(522)
Excess tax benefit on stock compensation	(79)	(122)
Loss on disposal of fixed assets	81	375
Litigation settlement	0	(6,584)
Gain on sale of subsidiary	0	(248)
Loss on sale of discontinued operations	0	13,024
Restructuring-related asset impairment		731
Accounts receivable	26,398	37,308
Inventories	(16,527)	(2,529)
Other current assets	3,357	148
Accounts payable	(7,625)	8,267
Income taxes	(2,341)	(2,329)
Unearned revenues - current	985	(3,840)
Restructuring reserve		(5,059)
Other liabilities	(7,421)	(19,339)
Net cash provided by operating activities	21,299	16,959
Acquisition of property, plant, and equipment and intangibles	(6,774)	(3,310)
Cash proceeds from the sale of discontinued operations	142	1,290
Cash proceeds from the sale of subsidiary	0	227
Other investing activities	44	921
Net cash used in investing activities	(6,588)	(872)
Proceeds from stock issuances	951	1,545
Excess tax benefit on stock compensation	79	122
Proceeds from short-term debt	0	2,759
Payment of short-term debt	0	(2,561)
Net change in factoring and bank overdrafts	(107)	(339)
Payment of long-term debt	(7,198)	(10,113)
Net cash used in financing activities	(5,232)	(8,587)
Effect of foreign currency rate fluctuations on cash and cash equivalents	374	(3,204)
Net increase in cash and cash equivalents	9,853	4,296
Beginning of period	121,573	118,829	118,829
End of period	131,426	123,125	121,573
As Previously Reported
Net earnings (loss)		(19,357)
Depreciation and amortization		14,487
Amortization of debt issuance costs		0
Interest on financing liability		0
Deferred taxes		(305)
Stock-based compensation		3,859
Provision for losses on accounts receivable		(522)
Excess tax benefit on stock compensation		(122)
Loss on disposal of fixed assets		375
Litigation settlement		(6,584)
Gain on sale of subsidiary		(248)
Loss on sale of discontinued operations		13,024
Restructuring-related asset impairment		731
Accounts receivable		41,613
Inventories		(2,456)
Other current assets		2,690
Accounts payable		3,351
Income taxes		(2,329)
Unearned revenues - current		(7,007)
Restructuring reserve		(5,059)
Other liabilities		(19,182)
Net cash provided by operating activities		16,959
Acquisition of property, plant, and equipment and intangibles		(3,310)
Cash proceeds from the sale of discontinued operations		1,290
Cash proceeds from the sale of subsidiary		227
Other investing activities		921
Net cash used in investing activities		(872)
Proceeds from stock issuances		1,545
Excess tax benefit on stock compensation		122
Proceeds from short-term debt		2,759
Payment of short-term debt		(2,561)
Net change in factoring and bank overdrafts		(339)
Payment of long-term debt		(10,113)
Net cash used in financing activities		(8,587)
Effect of foreign currency rate fluctuations on cash and cash equivalents		(3,204)
Net increase in cash and cash equivalents		4,296
Beginning of period		118,829	118,829
End of period		123,125
Restatement Adjustments
Net earnings (loss)		(1,556)
Depreciation and amortization		0
Amortization of debt issuance costs		0
Interest on financing liability		1,013
Deferred taxes		(463)
Stock-based compensation		0
Provision for losses on accounts receivable		0
Excess tax benefit on stock compensation		0
Loss on disposal of fixed assets		0
Litigation settlement		0
Gain on sale of subsidiary		0
Loss on sale of discontinued operations		0
Restructuring-related asset impairment		0
Accounts receivable		(4,305)
Inventories		(73)
Other current assets		(2,542)
Accounts payable		4,916
Income taxes		0
Unearned revenues - current		3,167
Restructuring reserve		0
Other liabilities		(157)
Net cash provided by operating activities		0
Acquisition of property, plant, and equipment and intangibles		0
Cash proceeds from the sale of discontinued operations		0
Cash proceeds from the sale of subsidiary		0
Other investing activities		0
Net cash used in investing activities		0
Proceeds from stock issuances		0
Excess tax benefit on stock compensation		0
Proceeds from short-term debt		0
Payment of short-term debt		0
Net change in factoring and bank overdrafts		0
Payment of long-term debt		0
Net cash used in financing activities		0
Effect of foreign currency rate fluctuations on cash and cash equivalents		0
Net increase in cash and cash equivalents		0
Beginning of period		0	0
End of period		$ 0