Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Interim Consolidated Financial Statement Details (Details Textual)

v3.19.2
Note 4 - Interim Consolidated Financial Statement Details (Details Textual)
3 Months Ended 6 Months Ended
Jun. 30, 2019
USD ($)
Mar. 31, 2019
USD ($)
Jul. 01, 2018
USD ($)
Jun. 30, 2019
USD ($)
Jul. 01, 2018
USD ($)
Dec. 31, 2018
USD ($)
Dec. 30, 2018
USD ($)
Depreciation, Total       $ 3,253,000 $ 1,543,000    
Amortization of Intangible Assets, Total $ 1,844,000     3,688,000    
Goodwill, Ending Balance 18,165,000     18,165,000     $ 18,165,000
Restructuring Charges, Total 1,546,000 $ 624,000 $ 96,000 2,170,000 96,000    
Restructuring Reserve, Ending Balance 857,000     857,000      
Business Combination, Contingent Consideration, Liability, Total   0          
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability $ (3,050,000) (3,050,000)    
Full Time Employees [Member] | UNITED STATES              
Restructuring and Related Cost, Number of Positions Eliminated 18 10          
Full Time Employees [Member] | MEXICO              
Restructuring and Related Cost, Number of Positions Eliminated 292 167          
Full Time Employees [Member] | CANADA              
Restructuring and Related Cost, Number of Positions Eliminated   4          
Machinery and Equipment [Member]              
Capital Leased Assets, Gross, Total $ 2,275,000     2,275,000     2,275,000
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation 692,000     692,000     409,000
Machinery and Equipment [Member] | Assets Under Capital Lease [Member]              
Depreciation, Total 142,000   21,000 284,000 36,000    
Building and Building Improvements [Member]              
Capital Leased Assets, Gross, Total 9,082,000     9,082,000     9,082,000
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation 498,000     498,000     96,000
Building and Building Improvements [Member] | Assets Under Capital Lease [Member]              
Depreciation, Total 201,000   96,000 402,000 192,000    
Furniture and Fixtures [Member]              
Capital Leased Assets, Gross, Total 158,000     158,000     158,000
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation 25,000     25,000      
Furniture and Fixtures [Member] | Assets Under Capital Lease [Member]              
Depreciation, Total 10,000     20,000      
Computer Equipment [Member]              
Capital Leased Assets, Gross, Total 91,000     91,000   $ 91,000  
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation 35,000     35,000     $ 5,000
Computer Equipment [Member] | Assets Under Capital Lease [Member]              
Depreciation, Total $ 8,000   $ 5,000 $ 15,000 $ 5,000