Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($)		12 Months Ended
	Dec. 22, 2017	Jan. 03, 2020	Dec. 28, 2018	Dec. 29, 2017
Increase (decrease) in taxes resulting from:
Computed provision (benefit) for taxes based on income at statutory rate percentage	35.00%	21.00%	21.00%	34.00%
Permanent differences percentage		17.40%	0.60%	(0.90%)
Change in the future federal tax rate percentage			0.00%	(833.00%)
State tax benefit percentage		0.70%	(6.70%)	8.30%
Foreign tax differential percentage		(11.60%)	(11.00%)	(1.30%)
Expiration of state net operating tax loss carryforwards percentage		8.00%	0.00%	(36.40%)
Foreign earnings not permanently reinvested, net of the participation exemption percentage		(0.10%)	(14.00%)	108.10%
Foreign dividend withholding percentage			4.80%	(0.30%)
ASC 718 share based payment adjustment percentage			(6.50%)	0.00%
Other percentage		1.00%	0.50%	(2.60%)
Valuation allowance percentage		(42.00%)	36.40%	731.20%
Effective tax provision (benefit) percentage		(7.80%)	25.20%	6.80%
State taxes, net of federal income tax benefit percentage		(2.20%)	0.10%	(0.30%)
Increase (decrease) in taxes resulting from:
Computed provision (benefit) for taxes based on income at statutory rate		$ 2,735,000	$ 1,394,000	$ (781,000)
Permanent differences		2,266,000	41,000	21,000
Change in the future federal tax rate			0	19,125,000
State taxes, net of federal income tax benefit		(284,000)	8,000	8,000
State tax benefit		93,000	(447,000)	(190,000)
Foreign tax differential		(1,514,000)	(730,000)	29,000
Expiration of state net operating tax loss carryforwards		1,039,000	0	836,000
Foreign earnings not permanently reinvested, net of the participation exemption		(7,000)	(926,000)	(2,482,000)
Foreign dividend withholding			317,000	7,000
ASC 718 share based payment adjustment			(434,000)	0
Other		122,000	30,000	59,000
Valuation allowance		(5,472,000)	2,418,000	(16,789,000)
Provision (benefit) for income taxes		$ (1,022,000)	$ 1,671,000	$ (157,000)