Commitments and Contingencies (Tables)

12 Months Ended

Jan. 01, 2022

Commitments and Contingencies Disclosure [Abstract]

Schedule of Lease Assets and Lease Liabilities

The following table reflects our lease assets and our lease liabilities at January 1, 2022 and January 2, 2021.

	January 1, 2022		January 2, 2021
	(in thousands)
Assets:
Operating lease ROU assets	$	4,520	$	8,165
Liabilities:
Current operating lease liabilities	$	3,119	$	2,853
Noncurrent operating lease liabilities		3,675		6,803
	$	6,794	$	9,656

Lease Costs

The components of lease costs were as follows:

	2021		2020
	(in thousands)
Operating lease cost	$	2,944	$	2,942
Short-term lease cost		98		93
Total lease cost	$	3,042	$	3,035

Schedule of Maturity of Operating Lease Liabilities

As of January 1, 2022 the maturity of operating lease liabilities was as follows:

	Continuing Operations			Discontinued Operations			Total
	(in thousands)
2022	$	1,805		$	1,661		$	3,466
2023		1,577			1,710			3,287
2024		256			286			542
Total lease payments	$	3,638		$	3,657			7,295
Less: Interest		(242	)		(259	)		(501	)
Present value of lease liabilities	$	3,396		$	3,398			6,794

Schedule of Lease Term and Discount Rate

	January 1, 2022			January 2, 2021
Weighted-average remaining lease term (in years)		2.11			3.09
Weighted-average discount rate		6.40	%		6.39	%

Schedule of Supplemental Cash Flow Information Related to Leases

Supplemental cash flow information related to leases was as follows (in thousands):

	2021		2020
	(in thousands)
Operating cash outflows from operating leases	$	3,382	$	3,332
ROU asset impairment expense (reported in discontinued operations)	$	1,246	$	—
ROU assets obtained in exchange for new operating lease liabilities	$	—	$	128

Schedule of Product Warranty Liability

The following table displays the activity in the warranty provision account for fiscal 2021 and 2020:

	2021			2020
	(in thousands)
Beginning balance	$	480		$	1,022
Expenditures incurred under warranties		(622	)		(493	)
Expenditures incurred under warranties included in discontinued operations		(89	)		(19	)
Accruals for product warranties		502			237
Accruals for product warranties included in discontinued operations		122			43
Adjustments to previously existing warranty accruals		31			(306	)
Adjustments to previously existing warranty accruals included in discontinued operations		(31	)		(4	)
Sale of Photonics division		(47	)		—
Ending balance	$	346		$	480