Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jul. 04, 2017	Jun. 28, 2016
Operating activities
Net loss	$ (28,660)	$ (16,460)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	12,546	13,977
Deferred income taxes	271	1,083
Restaurant impairments, closure costs and asset disposals	19,441	11,889
Amortization of debt issuance costs	185	58
Stock-based compensation	945	849
Non-cash gain on litigation settlement	(421)	0
Changes in operating assets and liabilities:
Accounts receivable	2,465	(383)
Inventories	(468)	(301)
Prepaid expenses and other assets	46	4,171
Accounts payable	17	(4,802)
Deferred rent	1,479	2,835
Income taxes	60	42
Accrued expenses and other liabilities	(16,137)	(677)
Net cash provided by operating activities	(8,231)	12,281
Investing activities
Purchases of property and equipment	(12,213)	(24,016)
Net cash used in investing activities	(12,213)	(24,016)
Financing activities
Net (repayments) borrowings from swing line loan	6,947	215
Proceeds from issuance of long-term debt	6,757	11,500
Payments on long-term debt	(37,015)	(1,000)
Issuance of preferred stock and common stock warrants, net of transaction expenses	16,589	0
Issuance of common stock, net of transaction expenses	29,110	0
Proceeds from exercise of stock options, warrants and employee stock purchase plan	37	876
Other financing activities	(662)	(2)
Net cash provided by (used in) financing activities	21,763	11,589
Effect of exchange rate changes on cash	2	127
Net increase in cash and cash equivalents	1,321	(19)
Cash and cash equivalents
Beginning of period	1,837	1,912
End of period	$ 3,158	$ 1,893