Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Interim Consolidated Financial Statement Details (Details Textual)

v3.5.0.2
Note 3 - Interim Consolidated Financial Statement Details (Details Textual)
3 Months Ended 6 Months Ended 12 Months Ended
Jul. 03, 2016
USD ($)
Jun. 24, 2016
USD ($)
Jul. 03, 2016
USD ($)
Apr. 03, 2016
Jun. 28, 2015
USD ($)
Jul. 03, 2016
USD ($)
Jun. 28, 2015
USD ($)
Jan. 03, 2016
USD ($)
Machinery and Equipment [Member] | Assets Under Capital Lease [Member]                
Depreciation     $ 74,000   $ 124,000 $ 154,000 $ 237,000  
Machinery and Equipment [Member]                
Capital Leased Assets, Gross $ 2,193,000   2,193,000     2,193,000   $ 2,528,000
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation 516,000   516,000     516,000   865,000
Computer Equipment [Member] | Assets Under Capital Lease [Member]                
Depreciation     10,000   $ 19 20,000 29,000  
Computer Equipment [Member]                
Capital Leased Assets, Gross 119,000   119,000     119,000    
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation 106,000   106,000     106,000   86,000
Equipment [Member] | Equipment Sale Back [Member]                
Sale Leaseback Contract, Period   2 years 330 days            
Sale Leaseback Transaction, Monthly Rental Payments   $ 15,000            
Sale Leaseback Transaction, Net Book Value 487,000,000   487,000,000     487,000,000    
Sale Leaseback Transaction, Net Proceeds, Financing Activities 509,000              
Capital Lease Obligations $ 492,000   $ 492,000     492,000    
Equipment [Member]                
Property, Plant and Equipment, Disposals   $ 509,000            
Restricted Cash, Contractual Term       1 year        
Inventory Write-down           $ 363,000   $ 673,000
Number of Major Customers           2    
Depreciation           $ 2,021,000 1,995,000  
Sale Leaseback Transaction, Net Proceeds, Financing Activities           $ 509,000