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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2021
Commitments and Contingencies  
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

    

 

December 31,

Operating Leases
(in thousands)

 

2022

 

249

2023

250

2024

240

2025

101

$

840