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Concentrations of Risk - Schedule of Concentration Risk (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues	$ 5,651	$ 5,549	$ 11,412	$ 10,780
Sales Revenue, Net [Member] | Buffalo Wild Wings Corporate-owned Restaurants and Its Franchisees [Member]
Revenues	$ 2,475	$ 2,379	$ 5,273	$ 4,484
Concentration risk percentage	44.00%	43.00%	46.00%	42.00%

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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