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Long-term Debt (Tables)
6 Months Ended
Jun. 30, 2021
Debt Disclosure [Abstract]  
Schedule of Long-term Debt
As of June 30, 2021 and December 31, 2020, long-term debt consisted of the following (in thousands):

June 30,December 31,
20212020
PPP Loan - 1% interest
$4,837 $4,812 
Other Loans - various interest420 400 
Total debt5,257 5,212 
Current portion of long-term debt1,452 553 
Long-term debt$3,805 $4,659 
Schedule of Maturities of Long-term Debt
The following presents maturities of future principal obligations of long-term debt as of June 30, 2021 (in thousands):

Remainder of 2021$549 
20221,675 
20231,291 
20241,304 
2025438 
Thereafter— 
Total$5,257