Summary of Significant Accounting Policies (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 02, 2021	Jun. 30, 2020	Jul. 02, 2021	Jun. 30, 2020	Dec. 31, 2020
Summary of Significant Accounting Policies (Details) [Line Items]
Allowance for trade accounts receivable	$ 2,500,000		$ 2,500,000		$ 2,200,000
Allowance for unbilled receivables	$ 500,000		500,000		400,000
Time and material contract percentage	90.00%
Performance obligations	$ 751,000,000		751,000,000		628,000,000
Remaining performance obligations	451,000,000		$ 451,000,000		377,000,000
Performance obligation expected recognized percentage			60.00%
Other current liabilities	0		$ 0		0
Revenue recognized contract liability	0	$ 32,000	0	$ 64,000
Refund liability	$ 0		$ 0		$ 0
Revenue, percentage	50.00%		50.00%
Revenue, percentage			90.00%
Non cash charge amount	$ 2,800,000
Equity compensation	$ 805,000	$ 190,000	$ 1,251,000	$ 10,035,000
Preferred units dividend percentage			5.00%
Preferred stock additional cash percentage			6.25%
Additional preferred stock percentage			7.25%
Liquidation preference percentage	103.00%		103.00%
Subscription Agreement [Member]
Summary of Significant Accounting Policies (Details) [Line Items]
Value of liquidation preference	$ 1,000,000		$ 1,000,000
Atlas Credit Agreement [Member]
Summary of Significant Accounting Policies (Details) [Line Items]
Liquidation preference percentage	3.5625%		3.5625%