Document And Entity Information	9 Months Ended
	Sep. 29, 2012	Oct. 27, 2012 Class A [Member]	Oct. 27, 2012 Class B [Member]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 29, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q3
Trading Symbol	atx
Entity Registrant Name	CROSS A T CO
Entity Central Index Key	0000025793
Current Fiscal Year End Date	--12-29
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		11,293,769	1,804,800