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Commitments and Contingencies (Detail Textuals) - USD ($)
3 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Loss Contingencies [Line Items]    
Post retirement obligation $ 1,115,000 $ 1,115,000
Arbitration-related expense 367,000  
Legal fees pursuant to arbitration award 304,000  
Health Related Costs pursuant to arbitration award 54,000  
Interest costs pursuant to arbitration award 9,000  
Employment Agreement | Kenneth Trbovich    
Loss Contingencies [Line Items]    
Post retirement obligation $ 669,000 $ 644,000
Minimum age limit 65 years