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

Year ending December 31,

    

Remainder of 2020

 $1,588 

2021

  3,176 

2022

  3,176 

2023

  3,176 

2024

  4,234 

Total future principal payments

  15,350 

Less: Unamortized debt issuance costs

  (185)

Less: Current portion of long-term debt

  (3,133)

Long-term debt

 $12,032