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Long-Term Compensation - Summary of Stock Based Compensation Activity (Details) - Stock Options [Member] - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Number of Options Balance Beginning 106,000 106,000
Number of Options Plan Awards
Number of Options Exercised
Number of Options Balance Ending 106,000 106,000
Number of Options Vested 106,000 106,000
Weighted Average Exercise Price Balance Beginning $ 7.96 $ 7.96
Weighted Average Exercise Price Plan Awards
Weighted Average Exercise Price Options Exercised
Weighted Average Exercise Price Balance Ending 7.96 7.96
Weighted Average Exercise Price Options Vested $ 7.96 $ 7.96
Aggregate Intrinsic Value Balance Beginning
Aggregate Intrinsic Value Balance Ending
Aggregate Intrinsic Value Options Vested