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Notes Payable and Revolving Credit Facility (Scheduled Principal Payments Due On Cantor Loan Note Payable) (Details) - Cantor Loan [Member] - USD ($)
$ in Thousands
Dec. 31, 2017
Mar. 31, 2016
Debt Instrument [Line Items]    
2018 $ 0  
2019 0  
2020 0  
2021 315  
2022 449  
Thereafter 31,333  
Total $ 32,097 $ 32,097