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Note 9 - Notes Payable and Capital Leases (Tables)
 12 Months Ended
Dec. 31, 2019
Notes Tables  
Schedule of Long-term Debt Instruments [Table Text Block]
   
Dec. 31, 201
9
    
Dec. 31, 201
8
  
Subordinated Notes (Officers) due on demand, interest at 4%, which consolidated prior Subordinated Notes (Officers). During January 2019, $600,000 of this balance was exchanged for 181,000 shares of our common stock at then market value
    
1,058,000
      
1,597,000
  
Notes Payable (Affiliates) due 2021, interest at 11.75% (see Note 12) (Related Party).
    
14,000
      
28,000
  
Term Loan with PNC, payable in monthly installments of $100,000 amortized over 5 years, interest at 8.25%, balance due December 2022, which uses balloons and related equipment as collateral
    
3,500,000
      
4,700,000
  
Total debt from deconsolidated VIE and other subs    
 
      
198,000
  
Total long-term debt
    
4,572,000
      
6,532,000
  
Less current portion
    
(3,488,000
)
    
(4,432,000
 )
Total Long-term debt, net of current portion
   $
1,084,000
     $
2,091,000
  
Schedule of Leverage Ratios [Table Text Block]
Fiscal Quarter Ratio
       
         
March 31, 2019
not applicable
  
June 30, 2019
 3.00
to
1.00
  
September 30, 2019
 2.75
to
1.00
  
January, 2020 and thereafter
not applicable
  
Schedule of Fixed Charge Coverage Ratio [Table Text Block]
Fiscal Quarter Ratio
       
         
March 31, 2020
 0.75
to
1.00
  
June 30, 2020
 0.85
to
1.00
  
September 30, 2020
 0.95
to
1.00
  
December 31, 2020
 1.05
to
1.00
  
March 31, 2021 and thereafter
 1.15
to
1.00