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Note 11 - Stock Based Compensation and Other Plans (Tables)
 12 Months Ended
Dec. 31, 2020
Notes Tables  
Share-based Payment Arrangement, Option, Activity [Table Text Block]
     
 
 
    
 
 
  
Weighted-
      
 
 
     
 
 
  
Weighted-
    
Average
    
Aggregate
  
     
 
 
  
Average
    
Remaining
    
Intrinsic
  
     
 
    
Exercise
    
Contractual
    
Value
  
Option Awards
  
Shares
    
Price
    
Term (Years)
    
(thousands)
  
Outstanding at January 1, 2019
    
3,044,927
     $
1.01
      
4.55
     $
103
  
Granted
    
–
      
–
      
–
      
–
  
Exercised/cancelled
    
804,580
     $
0.44
      
–
     $
–
  
Forfeited or expired
    
13,136
      
–
      
–
      
–
  
Outstanding at December 31, 2019
    
2,227,211
     $
1.22
      
4.83
     $
452
  
Granted
    
–
      
–
      
–
      
–
  
Exercised
    
57,500
     $
1.00
      
–
     $
–
  
Forfeited or expired
    
711,775
      
–
      
–
      
–
  
Outstanding at December 31, 2020
    
1,457,936
     $
1.31
      
3.63
     $
113
  
Exercisable at December 31, 2020
    
1,367,936
     $
1.33
      
3.45
     $
101
  
     
 
 
    
 
 
  
Weighted-
      
 
 
     
 
 
  
Weighted-
    
Average
    
Aggregate
  
     
 
 
  
Average
    
Remaining
    
Intrinsic
  
     
 
    
Exercise
    
Contractual
    
Value
  
Option Awards
  
Shares
    
Price
    
Term (Years)
    
(thousands)
  
Outstanding at January 1, 2019    
235,000
     $
1.23
      
9.35
     $
–
  
Granted
    
320,000
     $
0.64
      
–
     $
–
  
Exercised/cancelled
    
–
      
–
      
–
      
–
  
Forfeited or expired
    
–
      
–
      
–
      
–
  
Outstanding at December 31, 2019    
555,000
     $
0.89
      
8.88
     $
–
  
Granted    
–
      
–
      
–
      
–
  
Exercised
    
18,750
     $
0.64
      
–
     $
–
  
Forfeited or expired    
106,250
      
–
      
–
      
–
  
Outstanding at December 31, 2020
    
430,000
     $
0.90
      
7.87
     $
8
  
Exercisable at December 31, 2020
    
281,250
     $
0.90
      
7.87
     $
8
  
   
 
  
 
  
Weighted-
  
 
   
 
  
Weighted-
  
Average
  
Aggregate
   
 
  
Average
  
Remaining
  
Intrinsic
   
 
  
Exercise
  
Contractual
  
Value
Option Awards
  
Shares
  
Price
  
Term (Years)
  
(thousands)
Outstanding at December 31, 2019
  
–
  
–
  
–
  
–
Granted
  
200,000
 $
0.85
  
9.67
 $
60
Exercised
  
–
  
–
  
–
  
–
Forfeited or expired
  
–
  
–
  
–
  
–
Outstanding at December 31, 2020
  
200,000
 $
 0.85
  
9.67
 $
 60
Exercisable at December 31, 2020
  
–
  
–
  
–
  
 –
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
   
2020
    
2019
  
Expected volatility
    
0.0
%
    
39.0
 %
Expected dividend yields
    
0.0
%
    
0.0
 %
Expected term (in years)
    
2
      
3
  
Risk free interest rate
    
0.0
%
    
2.3
 %
Expected forfeiture rate
    
0.0
%
    
5.0
 %
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]
     
 
 
  
Weighted-
  
     
 
 
  
Average
  
     
 
 
  
Grant Date
  
     
 
 
  
Fair Value
  
   
Shares
    
per Share
  
Unvested at January 1, 2019
    
1,000
     $
1.36
  
Granted
    
–
      
–
  
Vested
    
(1,000
 )    
1.36
  
Forfeited
    
–
      
–
  
Unvested at December 31, 2019
    
–
      
–
  
Granted
    
–
      
–
  
Vested
    
–
      
–
  
Forfeited
    
–
      
–
  
Unvested at December 31, 2020
    
–
     $
–
  
     
 
 
  
Weighted-
  
     
 
 
  
Average
  
     
 
 
  
Grant Date
  
     
 
 
  
Fair Value
  
   
Shares
    
per Share
  
Unvested at January 1, 2019    
10,000
     $
1.23
  
Granted
    
–
      
–
  
Vested
    
(10,000
 )    
1.23
  
Forfeited
    
–
      
–
  
Unvested at December 31, 2019    
–
      
–
  
Granted    
–
      
–
  
Vested    
–
      
–
  
Forfeited    
–
      
–
  
Unvested at December 31, 2020
    
–
     $
–