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NOTE 2 - ACCOUNTS RECEIVABLE, NET (Tables)
12 Months Ended
Dec. 31, 2019
Receivables [Abstract]  
Schedule of accounts receivable
   

December 31,

2019

   

December 31,

2018

 
(in thousands)            
Trade accounts receivable   $ 4,179     $ 3,846  
Less allowance for doubtful receivables     80       75  
Trade accounts receivable, net   $ 4,099     $ 3,771  
Changes in allowance for doubtful accounts
   

December 31,

2019

   

December 31,

2018

 
(in thousands)            
Beginning balance   $ 75     $ 73  
Bad debt expense (reversal)     5       2  
Accounts written-off     -       -  
Recoveries     -       -  
Ending balance   $ 80     $ 75