Commitments and Contingencies - Schedule of Lease Assets and Lease Liabilities (Detail) - USD ($) $ in Thousands	Dec. 28, 2019	Dec. 30, 2018
Assets:
Operating lease right-of-use assets	$ 10,279	$ 11,635
Liabilities:
Current operating lease liabilities	2,524	2,581
Noncurrent operating lease liabilities	9,532	11,120
Operating Lease, Liability	$ 12,056	$ 13,701