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Summary of Significant Accounting Policies (Tables)
 6 Months Ended
Jun. 30, 2021
Accounting Policies [Abstract]  
Disaggregation of revenue Below is a detail of the amounts by category:
THREE MONTHS ENDED
June 30,		SIX MONTHS ENDED
June 30,
in thousands2021202020212020
Type of Revenue
Parking income$1,880 $1,227 $3,538 $3,278 
Management fee income419 69 658 147 
Miscellaneous128 36 182 71 
$2,427 $1,332 $4,378 $3,496