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Note 20 - Product and Geographic Segment Data (Tables)
12 Months Ended
Dec. 31, 2020
Notes Tables  
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
   
Net Sales to Outside Customers
 
   
For the Year Ended
 
   
December 31,
 
   
2020
   
2019
 
                 
United States
  $
21,192,000
    $
23,754,000
 
Mexico
   
5,280,000
     
8,518,000
 
                 
    $
26,473,000
    $
32,272,000
 
Long-lived Assets by Geographic Areas [Table Text Block]
   
Total Assets at
 
   
December 31,
   
December 31,
 
   
2020
   
2019
 
                 
United States
  $
12,459,000
    $
17,450,000
 
Mexico
   
8,798,000
     
10,897,000
 
Assets Held for Sale
   
294,000
     
2,974,000
 
                 
    $
21,551,000
    $
31,321,000
 
Schedule of Segment Reporting Information, by Product [Table Text Block]
   
Twelve Months Ended
 
   
December 31, 2020
   
December 31, 2019
 
   
$
   
% of
   
$
   
% of
 
Product Category
 
(000) Omitted
   
Net Sales
   
(000) Omitted
   
Net Sales
 
                                 
Foil Balloons
   
17,061
     
64
%    
17,630
     
55
%
                                 
Latex Balloons
   
4,718
     
18
%    
7,409
     
23
%
                                 
Film Products
   
804
     
3
%    
1,883
     
6
%
                                 
Other
   
3,890
     
15
%    
5,350
     
17
%
                                 
Total
 
 
26,473
   
 
100
%
 
 
32,272
   
 
100
%