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Cash and Cash Equivalents (Tables) | 12 Months Ended
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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 |
__________________________ (a) Includes cash placed on deposit with a financial institution to be held as cash collateral for the Company's outstanding letters of credit.

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- Definition Tabular disclosure of the components of cash and cash equivalents. + References No definition available. + Details
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