Note 3 - Business Combinations (Details Textual) - Acquisition of Lane Venture [Member] - USD ($) $ in Thousands		12 Months Ended
Dec. 21, 2017	Nov. 24, 2018
Payments to Acquire Businesses, Gross	$ 15,556
Goodwill, Purchase Accounting Adjustments		$ (76)
Business Combination, Acquisition Related Costs		$ 256

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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- Definition

Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

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