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New Accounting Standards (Tables) | 12 Months Ended
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Dec. 31, 2018
New Accounting Standards [Abstract] |
Reconciliation Of Cash, Cash Equivalents, And Restricted Cash |
﻿ |  |  |  |  |  |
﻿ |  | December 31,
﻿ |  | 2018 |  | 2017
﻿ |  | (in thousands)
﻿Cash and cash equivalents |  | $ | 33,360 |  | $ | 19,669
﻿Restricted cash - current |  |  | 804 |  |  | 842
﻿Restricted cash - non-current |  |  | 920 |  |  | 967
﻿Abandonment funding |  |  | 11,571 |  |  | 10,808
﻿Total cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows |  | $ | 46,655 |  | $ | 32,286
﻿

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