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Revolving Credit Facilities and Mortgage Payable - Mortgage (Details) - USD ($)
$ in Thousands
1 Months Ended
Jul. 31, 2014
Jun. 30, 2020
Mar. 31, 2020
Debt Instrument [Line Items]      
Short-term borrowings   $ 646 $ 638
Mortgage payable   30,101 $ 30,263
Mortgages      
Debt Instrument [Line Items]      
Debt instrument face amount $ 33,931    
Long-term debt gross   30,747  
Short-term borrowings   646  
Mortgage payable   $ 30,101  
Fixed interest rate 4.928%    
Debt amortization period 30 years    
Balloon payment to be paid $ 23,695