Cash and Cash Equivalents (Tables)

12 Months Ended

Dec. 31, 2021

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, 2021		December 31, 2020
Cash and cash equivalents - unrestricted	$	129,790	$	62,790
Cash - restricted (a)	10,950		11,160
Total cash and cash equivalents	$	140,740	$	73,950

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(a)     Includes cash placed on deposit with a financial institution to be held as cash collateral for the Company's outstanding letters of credit.