Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 24, 2016
Cash flows from operating activities:
Net income (loss)	$ 34,520	$ (2,516)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,586	2,801
Amortization of finite-lived intangibles	2,462	2,879
Amortization of debt issuance costs	76	76
Stock-based compensation	2,762	2,183
Change in the fair value of the contingent earn out	619	628
Changes in assets and liabilities
Accounts receivable	(26,717)	(13,869)
Inventories	(35,174)	(17,500)
Prepaid expenses and other	13	1,298
Deferred income taxes	(40)	784
Other non-current assets	(337)	(36)
Accounts payable	31,350	25,016
Accrued compensation and related benefits	3,010	656
Income taxes payable	3,993
Other liabilities	1,058	1,245
Net cash provided by operating activities	20,181	3,645
Cash flows from investing activities:
Purchases of equipment and leasehold improvements	(5,770)	(3,702)
Disposal of equipment and leasehold improvements		62
Net cash used for investing activities	(5,770)	(3,640)
Cash flows from financing activities:
Proceeds from bank borrowings	5,205	2,052
Proceeds from issuance of common stock	1,677	104
Principal payments on bank borrowings	(12,607)	(7,758)
Employees’ taxes paid upon vesting of restricted stock units	(1,810)	(434)
Net cash used for financing activities	(7,535)	(6,036)
Effect of exchange rate changes on cash and cash equivalents	141	(19)
Net increase (decrease) in cash and cash equivalents	7,017	(6,050)
Cash and cash equivalents at beginning of period	52,465	50,103
Cash and cash equivalents at end of period	59,482	44,053
Supplemental cash flow information:
Income taxes paid	3,797	2,265
Income tax refunds	25	598
Interest paid	2,259	1,306
Non-cash investing activities:
Restricted stock issued	9,485	2,576
Equipment and leasehold improvements purchased included in accounts payable	$ 1,475	$ 148