INCOME TAXES (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Computed expected federal income tax benefit, Amount	$ 2,189	$ 4,805
State income tax benefit, net of federal benefit, Amount	0	68
Rate differential on foreign operations, Amount	(137)	(1,002)
Forfeited vested stock options, Amount	(66)	(281)
Tax benefits associated with share-based awards, Amount	(240)	179
Adjustment to estimated tax loss carryforward, Amount	(107)	(418)
Change in statutory and applicable tax rates, Amount	(13,129)	505
Non-deductible expenses, Amount	(56)	(25)
Goodwill impairment	0	(1,257)
Other, Amount	154	113
Change in valuation allowance, Amount	11,589	(2,439)
Total income tax (expense) benefit	$ 197	$ 248
Computed expected federal income tax benefit, Percentage	34.00%	34.00%
State income tax benefit, net of federal benefit, Percentage	0.00%	0.50%
Rate differential on foreign operations, Percentage	(2.10%)	(7.10%)
Forfeited vested stock options, Percentage	(1.00%)	(2.00%)
Tax benefits associated with share-based awards, Percentage	(3.70%)	1.30%
Adjustment to estimated tax loss carryforward, Percentage	(1.70%)	(3.00%)
Change in statutory and applicable tax rates, Percentage	(203.90%)	3.60%
Non-deductible expenses, Percentage	(0.90%)	(0.20%)
Goodwill impairment, Percentage	0.00%	(8.90%)
Other, Percentage	2.40%	0.80%
Change in valuation allowance, Percentage	180.00%	(17.30%)
Total, Percentage	3.10%	1.70%