CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Oct. 01, 2021
Cash flows from operating activities:
Net income (loss)	$ (8,023)	$ (7,527)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	13,240	12,678
Deferred income taxes, net	(4,111)	(3,544)
(Gain) loss on sale/disposal of equipment	(67)	(37)
Provision for doubtful accounts	230	87
Stock-based compensation	6,626	14,349
Accretion and fair value adjustments of contingent consideration	1,659	860
Changes in operating assets and liabilities, net of effects from business acquisitions:
Accounts receivable	6,605	(1,892)
Contract assets	(15,636)	(3,318)
Other receivables	1,155	376
Prepaid expenses and other current assets	256	2,005
Other assets	1,981	(4,557)
Accounts payable	(13,185)	(17,787)
Accrued liabilities	15,354	5,726
Contract liabilities	(1,336)	1,016
Right-of-use assets	(245)	(145)
Net cash provided by operating activities	4,503	(1,710)
Cash flows from investing activities:
Purchase of equipment and leasehold improvements	(6,969)	(4,898)
Proceeds from sale of equipment	75	46
Net cash (used in) provided by investing activities	(6,894)	(4,852)
Cash flows from financing activities:
Payments on contingent consideration	(10,206)	(6,615)
Payments on notes payable	(1,577)	(1,724)
Proceeds from notes payable		206
Borrowings under term loan facility and line of credit	20,000
Repayments under term loan facility and line of credit	(9,750)	(9,750)
Principal payments on finance leases	(827)	(440)
Proceeds from stock option exercise	270	1,747
Proceeds from sales of common stock under employee stock purchase plan	3,036	2,656
Cash used to pay taxes on stock grants	(958)	(3,117)
Restricted Stock Award and Units		(1)
Net cash (used in) provided by financing activities	(12)	(17,038)
Net increase (decrease) in cash and cash equivalents	(2,403)	(23,600)
Cash and cash equivalents at beginning of period	11,221	28,405
Cash and cash equivalents at end of period	8,818	4,805
Cash paid (received) during the period for:
Interest	2,790	2,701
Income taxes	(1,027)	(1,742)
Supplemental disclosures of noncash investing and financing activities:
(Gain) loss on cash flow hedge valuations, net of tax	38	343
Equipment acquired under finance leases	$ 2,137	$ 987