Leases (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 21, 2020	Mar. 23, 2019
Lease Expense
Operating Lease Cost	$ 207	$ 191
Short-term Lease Cost	23	90
Variable Lease Cost	36	55
Total Operating Lease Cost	266	336
Operating Lease - Operating Cash Flows	187	175
New ROU Assets - Operating Leases	$ 688	$ 73
Weighted Average Remaining Lease Term - Operating Leases	2 years 7 months 10 days	1 year 7 months 24 days
Weighted Average Discount Rate - Operating Leases	5.00%	5.00%

Amount of lease cost recognized by lessee for lease contract.

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No definition available.

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Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

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- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

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- Definition

Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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