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PORT PREFERRED STOCK (Tables)
9 Months Ended
Sep. 30, 2020
Equity [Abstract]  
Schedule of Stock by Class
The following is a reconciliation of PORT’s noncontrolling cumulative convertible redeemable preferred stock for the nine months ended September 30, 2020:
Series A Preferred StockSeries B Preferred Stock
SharesAmountsSharesAmounts
Balance, December 31, 201915,000 $14,909 125 $99 
Dividends Available Upon Redemption— 781 — 
Dividends Paid— (556)— (7)
Balance, September 30, 202015,000 $15,134 125 $99