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Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) - USD ($) |  |  | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 16, 2020 | Jan. 29, 2020 | Jun. 28, 2020 | Jun. 30, 2019 | Jun. 28, 2020 | Jun. 30, 2019 | Sep. 30, 2019 | Sep. 29, 2019
Restructuring Charges, Total |  |  | $ 2,865,000 | $ 2,792,000 | $ 6,422,000 | $ 5,612,000 |  |
Operating Lease, Right-of-Use Asset |  |  | 70,626,000 |  | 70,626,000 |  |  | $ 0
Operating Lease, Liability, Current |  |  | 8,886,000 |  | 8,886,000 |  |  | 0
Operating Lease, Liability, Noncurrent |  |  | 62,585,000 |  | 62,585,000 |  |  | $ 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 |
BHMG [Member] |  |  |  |  |  |  |  |
Lessee, Operating Lease, Term of Contract (Year) |  | 10 years |  |  |  |  |  |
BHMG [Member] |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross |  | $ 140,000,000 |  |  |  |  |  |
Business Combination, Termination of Contract, Expected Credits | $ 5,425,000 |  |  |  |  |  |  |
Business Combination, Termination of Contract, Expected Credit, Estimated Pro-rated Fixed Portion | 1,245,000 |  |  |  |  |  |  |
Business Combination, Termination of Contract, Expected Credit, Estimated Pro-rated Variable Portion | 4,180,000 |  |  |  |  |  |  |
Contract with Customer, Asset, Increase (Decrease) for Contract Acquired in Business Combination | $ (3,589,000) |  |  |  |  |  |  |
COVID-19 [Member] |  |  |  |  |  |  |  |
Restructuring Charges, Total |  |  | $ 2,865,000 |  | $ 6,422,000 |  |  |
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% |  |  |

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