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Note 7 - Accounts Payable and Accrued Expenses
9 Months Ended
Sep. 30, 2019
Notes to Financial Statements  
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
Note
7.
Accounts Payable and Accrued Expenses
 
Accounts payable and accrued expenses included the following (in thousands):
 
   
December 31,
2018
   
September
30
,
2019
 
Accounts payable and accrued expense
  $
302
    $
297
 
Accrued interest
   
122
     
111
 
Accrued payroll
   
77
     
138
 
Total accounts payable and accrued expenses
  $
501
    $
546