Accrued Expenses and Other Current Liabilities - Components of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Jan. 01, 2022	Jan. 02, 2021
Components of accrued expenses and other current liabilities
Legal and professional fees	$ 379	$ 326
Sales and marketing expenses	238	116
Temporary help and consulting	215	36
Royalties payable	97	89
Accrued rent		169
Tax payable	73
Other accrued expenses	573	254
Total accrued expenses	1,575	990
Customer deposits	1,098	802
Other miscellaneous		14
Total other current liabilities	$ 1,098	$ 816