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Cash and Cash Equivalents (Tables)
12 Months Ended
Dec. 31, 2020
Cash and Cash Equivalents [Abstract]  
Schedule of Cash and Cash Equivalents [Table Text Block]
Cash and cash equivalents consists of the following components (dollars in thousands):
 December 31,
2020
December 31,
2019
Cash and cash equivalents - unrestricted$62,790 $172,470 
Cash - restricted11,160 — 
Total cash and cash equivalents$73,950 $172,470