Note 2 - Acquisitions - Preliminary Determination of Fair Values of Assets and Liabilities (Details) - USD ($)			8 Months Ended	12 Months Ended
	Jan. 29, 2020	[1]	Sep. 27, 2020	Sep. 27, 2020	Sep. 29, 2019	Sep. 30, 2018	Mar. 16, 2020
Goodwill			$ 328,445,000	$ 328,445,000	$ 250,309,000	$ 246,176,000
Total consideration less acquired cash				130,985,000	$ 6,543,000	$ (0)
BHMG [Member]
Cash and cash equivalents	$ 22,293,000		22,293,000	22,293,000
Current assets	52,559,000		51,673,000	51,673,000
Current assets, adjustment			(886,000)
Other assets	12,167,000		15,710,000	15,710,000
Other assets, adjustment			3,543,000
Property and equipment	42,952,000		42,985,000	42,985,000
Property and equipment, adjustment			33,000
Operating lease assets	7,445,000		7,546,000	7,546,000
Operating lease assets, adjustment			101,000
Goodwill	63,559,000		78,136,000	78,136,000
Goodwill, adjustment			14,577,000
Total assets	314,625,000		314,473,000	314,473,000
Total assets, adjustment			(152,000)
Current liabilities assumed	(73,451,000)		(72,377,000)	(72,377,000)
Current liabilities assumed, adjustment			1,074,000
Operating lease liabilities	(6,625)		(7,546,000)	(7,546,000)
Operating lease liabilities, adjustment			(921,000)
Other liabilities assumed	(2,246,000)		(2,246,000)	(2,246,000)
Pension obligations	(43,503,000)		(43,503,000)	(43,503,000)
Postemployment benefit obligations	(36,800,000)		(36,800,000)	(36,800,000)
Total liabilities	(162,625,000)		(162,473,000)	(162,473,000)
Total liabilities, adjustment			152,000
Net assets	152,000,000		152,000,000	152,000,000
Less: acquired cash	(22,293,000)			(22,293,000)
Total consideration less acquired cash	129,707,000			129,707,000
BHMG [Member] | Mastheads [Member]
Relationship, adjustment			(1,290,000)
Mastheads	21,680,000		20,390,000	20,390,000
BHMG [Member] | Advertiser Relationships [Member]
Relationships	38,780,000		27,960,000	27,960,000			$ 27,960,000
Relationship, adjustment			(10,820,000)
BHMG [Member] | Subscriber Relationships [Member]
Relationships	36,060,000		28,200,000	28,200,000			28,200,000
Relationship, adjustment			(7,860,000)
BHMG [Member] | Commercial Print Relationships [Member]
Relationships	$ 17,130,000		19,580,000	$ 19,580,000			$ 19,580,000
Relationship, adjustment			$ 2,450,000

[1] As previously reported in the Company's Quarterly Report on Form 10-Q for the period ended March 29, 2020.