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Note K - Accrued Liabilities (Tables)
12 Months Ended
Dec. 31, 2019
Notes Tables  
Schedule of Accrued Liabilities [Table Text Block]
   
201
9
   
201
8
 
                 
Compensation
  $
193,823
    $
224,135
 
Compensated absences
   
155,962
     
154,169
 
Accrued legal and accounting fees
   
105,933
     
77,133
 
Sales tax payable
   
17,248
     
9,436
 
Factoring fees
   
31,458
     
19,000
 
Other
   
182,461
     
64,359
 
                 
Total
  $
686,885
    $
548,232