Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Discontinued Operations (Details Textual)

v3.7.0.1
Note 10 - Discontinued Operations (Details Textual)
3 Months Ended
May 02, 2016
USD ($)
Mar. 31, 2017
USD ($)
Mar. 31, 2016
USD ($)
Dec. 31, 2016
USD ($)
Number of Previously Shut Down Locations   2    
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent   $ (131,000) $ (167,000)  
Discontinued Operation, Tax Effect of Discontinued Operation   0 0  
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment   54,384,000   $ 53,323,000
Disposal Group, Including Discontinued Operation, Revenue   0 $ 0  
PFMI [Member]        
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      
Disposal Group, Including Discontinued Operation, Consideration, Remaining Balance   320,000    
PFMI [Member] | Current Assets Related to Discontinued Operations [Member]        
Disposal Group, Including Discontinued Operation, Consideration, Remaining Balance   69,000    
PFMI [Member] | Other Assets Related to Discontinued Operations [Member]        
Disposal Group, Including Discontinued Operation, Consideration, Remaining Balance   251,000    
Not Held for Sale [Member]        
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment   $ 10,000   $ 10,000