XML 46 R31.htm IDEA: XBRL DOCUMENT v3.21.1
Note 14 - Business Segment Reporting (Tables)
12 Months Ended
Dec. 31, 2020
Notes Tables  
Revenue from External Customers by Geographic Areas [Table Text Block]
    Year Ended December 31,
    2020   2019   2018
Consolidated Revenue:                        
United States   $
19,486
    $
27,329
    $
29,189
 
Brazil    
1,344
     
9,819
     
13,046
 
Other    
530
     
530
     
439
 
Total Revenue   $
21,360
    $
37,678
    $
42,674
 
Schedule of Segment Reporting Information, by Segment [Table Text Block]
    As of December 31,
Assets:     2020       2019  
United States   $
24,003
    $
27,091
 
Brazil    
-
     
440
 
Total Assets   $
24,003
    $
27,531