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Financial Instruments (Details 1) - USD ($)
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative Asset     $ 1,005,000 $ 1,623,000
Derivative Liability $ 231,000 $ 37,000