Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 27, 2018	Jun. 28, 2017
Cash flows from operating activities:
Net income	$ 21,385	$ 17,122
Adjustments to reconcile net income to cash flows provided by operating activities:
Depreciation and amortization	13,205	11,535
Operating (gains), losses and other charges, net	822	2,829
Amortization of deferred financing costs	303	297
(Gain) loss on early extinguishments of debt and leases	(161)	68
Deferred income tax expense	2,896	6,291
Share-based compensation	2,561	4,053
Decrease (increase) in assets:
Receivables	2,323	3,741
Inventories	38	(1)
Other current assets	(253)	3,587
Other assets	(445)	(3,869)
Increase (decrease) in liabilities:
Accounts payable	(7,280)	(1,986)
Accrued salaries and vacations	(2,029)	(9,692)
Accrued taxes	428	276
Other accrued liabilities	(6,352)	(365)
Other noncurrent liabilities	(1,345)	(1,068)
Net cash flows provided by operating activities	26,096	32,818
Cash flows from investing activities:
Capital expenditures	(9,512)	(8,208)
Acquisition of restaurants and real estate	(10,416)	(6,871)
Proceeds from disposition of property	4	1,032
Collections on notes receivable	1,921	3,186
Issuance of notes receivable	(2,455)	(1,825)
Net cash flows used in investing activities	(20,458)	(12,686)
Cash flows from financing activities:
Revolver borrowings	66,500	58,500
Revolver payments	(43,500)	(42,000)
Long-term debt payments	(1,643)	(1,633)
Proceeds from exercise of stock options	1,013	135
Tax withholding on share-based payments	(1,696)	0
Purchase of treasury stock	(28,964)	(35,629)
Net bank overdrafts	1,419	(429)
Net cash flows used in financing activities	(6,871)	(21,056)
Decrease in cash and cash equivalents	(1,233)	(924)
Cash and cash equivalents at beginning of period	4,983	2,592
Cash and cash equivalents at end of period	$ 3,750	$ 1,668