CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2020	Mar. 29, 2019
Cash flows from operating activities:
Net loss	$ (8,154)	$ (417)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,519	2,739
Deferred income taxes, net	(2,136)	69
(Gain) loss on sale/disposal of equipment	(16)	(25)
Provision for doubtful accounts	366	27
Stock-based compensation	4,595	1,817
Accretion and fair value adjustments of contingent consideration	334	111
Changes in operating assets and liabilities, net of effects from business acquisitions:
Accounts receivable	(4,451)	18,043
Contract assets	36,798	(5,765)
Other receivables	(253)	(696)
Prepaid expenses and other current assets	704	918
Other assets	607	(315)
Accounts payable	9,938	(127)
Accrued liabilities	(28,001)	(5,799)
Contract liabilities	1,602	(396)
Right-of-use assets	3	303
Net cash provided by operating activities	16,455	10,487
Cash flows from investing activities:
Purchase of equipment and leasehold improvements	(2,156)	(1,929)
Proceeds from sale of equipment	17	35
Cash paid for acquisitions, net of cash acquired		(21,800)
Net cash used in investing activities	(2,139)	(23,694)
Cash flows from financing activities:
Payments on contingent consideration	(1,434)	(1,205)
Payments on notes payable	(151)	(472)
Borrowings under term loan facility and line of credit	9,000	14,000
Repayments under term loan facility and line of credit	(13,250)	(1,750)
Principal payments on finance leases	(96)	(88)
Proceeds from stock option exercise	260	291
Proceeds from sales of common stock under employee stock purchase plan	1,073	749
Shares used to pay taxes on stock grants	(2,867)	(2,516)
Restricted Stock Award and Units	1
Net cash (used in) provided by financing activities	(7,464)	9,009
Net increase (decrease) in cash and cash equivalents	6,852	(4,198)
Cash and cash equivalents at beginning of period	5,452	15,259
Cash and cash equivalents at end of period	12,304	11,061
Cash paid during the period for:
Interest	1,735	965
Income taxes	529
Supplemental disclosures of noncash investing and financing activities:
Other working capital adjustment		579
Equipment acquired under finance leases	$ 193	$ 261