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Note 1 - Significant Accounting Policies (Details Textual) - USD ($)
12 Months Ended
Mar. 16, 2020
Sep. 27, 2020
Jan. 29, 2020
[1]
Sep. 29, 2019
Sep. 30, 2018
Feb. 28, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total   $ (20,050,000)   $ (29,114,000)   $ (3,067,000)
Inventory, LIFO Reserve   942,000   1,661,000    
Goodwill, Ending Balance   $ 328,445,000   250,309,000 $ 246,176,000  
Class of Warrant or Right, Outstanding (in shares)   6,000,000        
Operating Lease, Right-of-Use Asset $ 56,226,000 $ 70,933,000   0    
Operating Lease, Liability, Current   8,577,000   0    
Operating Lease, Liability, Noncurrent   62,374,000   $ 0    
Accounting Standards Update 2016-02 [Member]            
Operating Lease, Right-of-Use Asset   10,709,000        
Operating Lease, Liability, Current   2,281,000        
Operating Lease, Liability, Noncurrent   8,353,000        
Uninsured Risk [Member]            
Loss Contingency Accrual, Ending Balance   $ 3,905,000        
Minimum [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)   1 year        
Maximum [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)   4 years        
BHMG [Member]            
Goodwill, Ending Balance   $ 78,136,000 $ 63,559,000      
Leasehold Improvements [Member] | BHMG [Member] | Minimum [Member]            
Property, Plant and Equipment, Useful Life (Year) 3 years          
Leasehold Improvements [Member] | BHMG [Member] | Maximum [Member]            
Property, Plant and Equipment, Useful Life (Year) 9 years          
TNI Partners [Member]            
Noncontrolling Interest, Ownership Percentage by Parent   50.00%        
Goodwill, Ending Balance   $ 12,366,000        
MNI [Member]            
Noncontrolling Interest, Ownership Percentage by Parent   50.00%        
INN Partners, L.C. [Member]            
Noncontrolling Interest, Ownership Percentage by Parent   82.50%        
[1] As previously reported in the Company's Quarterly Report on Form 10-Q for the period ended March 29, 2020.