XML 18 R26.htm IDEA: XBRL DOCUMENT v3.20.1
Note 5 - Accounts Receivable, Net (Tables)
 3 Months Ended
Mar. 31, 2020
Notes Tables  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
(in thousands)
  
March 31, 2020
    
December 31, 2019
  
Accounts receivable
   $
13,275
     $
13,785
  
Less allowance for uncollectible accounts receivable
    
(34
 )    
(116
 )
Accounts receivable, net
   $
13,241
     $
13,669