Quarterly report pursuant to Section 13 or 15(d)

Note 9 - Discontinued Operations (Details Textual)

v3.3.0.814
Note 9 - Discontinued Operations (Details Textual)
 3 Months Ended 9 Months Ended
Sep. 29, 2015
USD ($)
Jul. 02, 2015
USD ($)
Jun. 04, 2015
USD ($)
Jun. 20, 2014
USD ($)
Aug. 14, 2013
USD ($)
Jun. 30, 2015
USD ($)
Mar. 31, 2015
Sep. 30, 2014
USD ($)
Sep. 30, 2014
USD ($)
Sep. 30, 2015
USD ($)
Dec. 31, 2014
USD ($)
Not Held for Sale [Member]                      
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment                   $ 10,000 $ 10,000
PFSG [Member] | PFSG Facility Fire Damage [Member]                      
Maximum Deductible Amount in Insurance for General Liability         $ 300,000            
Proceeds from Insurance Settlement, Investing Activities       $ 3,850,000              
PFSG [Member]                      
Payments for Hazardous Waste Management and Permit Violations   $ 201,200                  
PFMI [Member] | Loss Income from Discontinued Operations, Net of Taxes [Member]                      
Asset Impairment Charges           $ 150,000          
PFMI [Member] | To be Received upon Closing [Member]                      
Proceeds from Sale of Land Held-for-use $ 55,000                    
PFMI [Member] | To be Received in Installments [Member]                      
Proceeds from Sale of Land Held-for-use 375,000                    
PFMI [Member]                      
Letter of Intent Receivable for Property Discontinued Operations $ 450,000   $ 450,000                
Due Diligence Period 45 days                    
Escrow Deposits Related to Property Sales $ 20,000                    
Discontinued Operation, Number of Monthly Installments 60                    
Discontinued Operation, Monthly Installment Amount $ 7,250                    
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment                   $ 49,575,000 $ 47,123,000
Number of Previously Shut Down Locations             2        
Tangible Asset Impairment Charges               $ 38,000 $ 723,000