Quarterly report pursuant to Section 13 or 15(d)

Note 9 - Discontinued Operations (Details Textual)

v3.5.0.2
Note 9 - Discontinued Operations (Details Textual)
3 Months Ended 9 Months Ended
May 02, 2016
USD ($)
Sep. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Jun. 30, 2015
USD ($)
Sep. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Dec. 31, 2015
USD ($)
Not Held for Sale [Member]              
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment   $ 10,000     $ 10,000   $ 10,000
PFMI [Member] | Loss Income from Discontinued Operations, Net of Taxes [Member]              
Asset Impairment Charges       $ 150,000      
PFMI [Member]              
Disposal Group, Including Discontinued Operation, Consideration $ 450,000            
Disposal Group, Including Discontinued Operation, Consideration, At Closing, Gross 75,000            
Disposal Group, Including Discontinued Operation, Consideration, At Closing, Net 46,000            
Disposal Group, Including Discontinued Operation, Consideration, After Closing $ 375,000            
Disposal Group, Including Discontinued Operation, Consideration, Number of Monthly Installment Payments 60            
Disposal Group, Including Discontinued Operation, Consideration, Installment Payment $ 7,250            
PFSG [Member]              
Payments for Hazardous Waste Management and Permit Violations           $ 201,000  
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment   52,276,000     52,276,000   $ 49,707,000
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation   0 $ 0   $ 0 0  
Number of Previously Shut Down Locations         2    
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent   $ (191,000) $ (377,000)   $ (622,000) $ (1,313,000)