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Restructuring (Tables)
3 Months Ended
Mar. 31, 2021
Restructuring and Related Activities [Abstract]  
Schedule of Restructuring Reserve by Type of Cost
The following is a reconciliation of the beginning and ending balances of our restructuring liability as it relates to the restructuring plans (in thousands):
20212020
Balance at December 31, 2020 and 2019$11 $38 
Accretion of lease obligations— 
Payments(6)(8)
Balance at March 31, 2021 and 2020$$31 

The following is a reconciliation of the ending balance of our restructuring liability at March 31, 2021 to the balance sheet:

20212020
Balance at March 31, 2021 and 2020$$31 
Less, short-term restructuring liability24 
Long-term restructuring liability, included in other liabilities$— $