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Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual)
3 Months Ended 6 Months Ended
Feb. 25, 2021
Mar. 28, 2021
USD ($)
Dec. 27, 2020
USD ($)
Mar. 29, 2020
USD ($)
shares
Mar. 28, 2021
USD ($)
Mar. 29, 2020
USD ($)
shares
Revenue from Contract with Customer, Including Assessed Tax   $ 192,430,000   $ 121,367,000 $ 404,248,000 $ 243,710,000
Common Stock, Shares, Outstanding, Ending Balance (in shares) | shares       5,813,591   5,813,591
Reverse Stock Split [Member]            
Stockholders' Equity Note, Stock Split, Conversion Ratio 10          
Previously Reported [Member]            
Common Stock, Shares, Outstanding, Ending Balance (in shares) | shares       58,135,910   58,135,910
Subscription and Circulation [Member]            
Revenue from Contract with Customer, Including Assessed Tax   89,777,000   $ 46,943,000 181,080,000 $ 89,113,000
Subscription and Circulation [Member] | Revision of Prior Period, Adjustment [Member]            
Revenue from Contract with Customer, Including Assessed Tax     $ 794,000 500,000   975,000
Product and Service, Other [Member]            
Revenue from Contract with Customer, Including Assessed Tax   $ 17,078,000   13,479,000 $ 34,964,000 27,925,000
Product and Service, Other [Member] | Revision of Prior Period, Adjustment [Member]            
Revenue from Contract with Customer, Including Assessed Tax     $ (794,000) $ (500,000)   $ (975,000)
INN Partners, L.C. [Member]            
Noncontrolling Interest, Ownership Percentage by Parent   82.50%     82.50%  
TNI Partners [Member]            
Noncontrolling Interest, Ownership Percentage by Parent   50.00%     50.00%  
MNI [Member]            
Noncontrolling Interest, Ownership Percentage by Parent   50.00%     50.00%