Note 2 - Acquisitions - Preliminary Determination of Fair Values of Assets and Liabilities (Details) - USD ($)			12 Months Ended			20 Months Ended	24 Months Ended
	Jan. 29, 2020	[1]	Sep. 26, 2021	Sep. 27, 2020	Sep. 29, 2019	Sep. 26, 2021	Sep. 26, 2021	Mar. 16, 2020
Goodwill			$ 330,204,000	$ 328,445,000	$ 250,309,000	$ 330,204,000	$ 330,204,000	$ 79,896,000
Goodwill, adjustment			1,759,000	0
Total consideration less acquired cash			(0)	$ 130,985,000	$ 6,543,000
BHMG [Member]
Cash and cash equivalents	$ 22,293,000		22,293,000			22,293,000	22,293,000
Current assets	52,559,000		51,704,000			51,704,000	51,704,000
Current assets, adjustment						(855,000)
Other assets	12,167,000		16,510,000			16,510,000	16,510,000
Other assets, adjustment						4,343,000
Property and equipment	42,952,000		42,985,000			42,985,000	42,985,000
Property and equipment, adjustment						33,000
Operating lease assets	7,445,000		7,546,000			7,546,000	7,546,000
Operating lease assets, adjustment						101,000
Goodwill	63,559,000		79,896,000			79,896,000	79,896,000
Goodwill, adjustment						16,337,000
Total assets	314,625,000		316,354,000			316,354,000	316,354,000
Total assets, adjustment						1,729,000
Current liabilities assumed	(73,451,000)		(72,377,000)			(72,377,000)	(72,377,000)
Current liabilities assumed, adjustment						1,074,000
Operating lease liabilities	(6,625)		(7,546,000)			(7,546,000)	(7,546,000)
Operating lease liabilities, adjustment						(921,000)
Other liabilities assumed	(2,246,000)		(4,128,000)			(4,128,000)	(4,128,000)
Other liabilities assumed						(1,882,000)
Pension obligations	(43,503,000)		(43,503,000)			(43,503,000)	(43,503,000)
Postemployment benefit obligations	(36,800,000)		(36,800,000)			(36,800,000)	(36,800,000)
Total liabilities	(162,625,000)		(164,354,000)			(164,354,000)	(164,354,000)
Total liabilities, adjustment						(1,729,000)
Net assets	152,000,000		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	20,390,000
BHMG [Member] | Advertiser Relationships [Member]
Relationships	38,780,000		27,620,000			27,620,000	27,620,000
Relationship, adjustment						(11,160,000)
BHMG [Member] | Subscriber Relationships [Member]
Relationships	36,060,000		27,850,000			27,850,000	27,850,000
Relationship, adjustment						(8,210,000)
BHMG [Member] | Commercial Print Relationships [Member]
Relationships	$ 17,130,000		$ 19,560,000			19,560,000	$ 19,560,000
Relationship, adjustment						$ 2,430,000

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