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Note 5 - Line of Credit and Long-term Debt (Tables)
9 Months Ended
Sep. 30, 2020
Notes Tables  
Schedule of Maturities of Long-term Debt [Table Text Block]

Year ending December 31,

       

Remainder of 2020

  $ 794  

2021

    3,176  

2022

    3,176  

2023

    3,176  

2024

    4,234  

Total future principal payments

    14,556  

Less: Unamortized debt issuance costs

    (180 )

Less: Current portion of long-term debt

    (3,132 )

Long-term debt

  $ 11,244