Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2018	Jan. 03, 2017	Dec. 29, 2015
Operating activities
Net loss	$ (37,482)	$ (71,677)	$ (13,765)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	24,613	28,134	27,802
Deferred income taxes, net	(228)	1,099	(8,878)
Restaurant impairments, closure costs and asset disposals	30,859	45,536	28,927
Amortization of debt issuance costs	465	140	98
Stock-based compensation	1,514	2,319	1,469
Loss on liquidation of Canadian subsidiary	70	0	0
Gain on insurance proceeds received for property damage	0	(494)	0
Changes in operating assets and liabilities:
Accounts receivable	2,976	(443)	(437)
Inventories	(387)	(790)	(1,058)
Prepaid expenses and other assets	332	162	(1,025)
Accounts payable	(1,302)	(2,440)	2,794
Deferred rent	1,597	5,328	7,143
Income taxes	180	564	(193)
Accrued expenses and other liabilities	(19,105)	17,299	1,629
Net cash provided by operating activities	4,102	24,737	44,506
Investing activities
Purchases of property and equipment	(20,828)	(43,335)	(50,093)
Acquisitions of franchise restaurants	0	0	(628)
Insurance proceeds received for property damage	0	578	0
Net cash used in investing activities	(20,828)	(42,757)	(50,721)
Financing activities
Net (repayments) borrowings from swing line loan	(96)	(1,649)	1,846
Proceeds from borrowings on long-term debt	10,532	19,800	55,600
Payments on long-term debt	(37,015)	(1,000)	(16,700)
Debt issuance costs	(938)	(347)	(249)
Issuance of preferred stock and common stock warrants, net of transaction expenses	16,589	0	0
Issuance of common stock, net of transaction expenses	29,110	0	0
Acquisition of treasury stock	0	0	(35,000)
Proceeds from exercise of stock options and employee stock purchase plan	83	1,100	952
Other financing activities	0	0	(94)
Net cash provided by financing activities	18,265	17,904	6,355
Effect of exchange rate changes on cash	(15)	41	(134)
Net increase (decrease) in cash and cash equivalents	1,524	(75)	6
Cash and cash equivalents
Beginning of year	1,837	1,912	1,906
End of year	$ 3,361	$ 1,837	$ 1,912