LEASED ASSETS (Schedule of right-of-use assets and related lease liabilities) (Details) - USD ($) $ in Thousands	Apr. 03, 2021	Dec. 31, 2020
Operating lease liabilities
Noncurrent portion	$ 1,654	$ 1,724
Total operating lease liabilities	$ 2,065
Weighted average remaining lease term of operating leases	11 years 7 months 9 days
Other assets [Member]
Operating Leased Assets [Line Items]
Right-of-use assets	$ 2,013
Trade accounts payable and accrued expenses [Member]
Operating lease liabilities
Current portion	$ 411