Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 27, 2018	Mar. 28, 2017
Cash flows from operating activities:
Net income	$ 689,000	$ 2,702,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	5,582,000	4,249,000
Amortization of financing fees	33,000	10,000
Stock-based compensation	667,000	498,000
Tax Receivable Agreement liability adjustment	1,473,000	0
Loss on disposal of assets	12,000	12,000
Deferred income taxes	(1,981,000)	1,300,000
Deferred rent	25,000	5,000
Changes in assets and liabilities:
Accounts receivable	103,000	49,000
Inventory	88,000	151,000
Prepaid expenses	(69,000)	(124,000)
Deposits and other assets	(128,000)	(121,000)
Accounts payable	1,021,000	962,000
Employee-related accruals	4,017,000	1,984,000
Accrued expenses	(1,221,000)	(149,000)
Sales taxes payable	296,000	280,000
Net cash provided by operating activities	10,607,000	11,808,000
Cash flows from investing activities:
Purchase of property and equipment	(14,456,000)	(6,164,000)
Net cash used in investing activities	(14,456,000)	(6,164,000)
Cash flows from financing activities:
Tax distributions to LLC members	(64,000)	(292,000)
Other distributions to LLC members	(21,000)	(32,000)
Payments on deemed landlord financing	(47,000)	(25,000)
Net cash used in financing activities	(132,000)	(349,000)
Net change in cash and cash equivalents	(3,981,000)	5,295,000
Cash and cash equivalents, beginning of period	28,277,000	44,192,000
Cash and cash equivalents, end of period	24,296,000	49,487,000
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash paid for interest	240,000	189,000
NON-CASH FINANCING
Deemed landlord financing	3,568,000	3,749,000
Unpaid purchase of property and equipment	$ 3,717,000	$ 3,262,000