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Restricted Unit Awards - Summary of RUA activity (Details) - Restricted Unit Awards [Member] - $ / shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Restricted Units Awarded    
Beginning Balance 132,812  
Granted 266,324 290,000
Vested (166,570) (154,386)
Forfeited   (2,802)
Ending Balance 232,566 132,812
Weighted-average Grant-Date Fair Value    
Beginning Balance $ 4.98  
Granted 6.49 $ 4.98
Vested 5.89 4.98
Forfeited   4.98
Ending Balance $ 6.06 $ 4.98