Quarterly report pursuant to Section 13 or 15(d)

Debt (Schedule of Interest Information) (Details)

v3.19.3
Debt (Schedule of Interest Information) (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Debt Instrument [Line Items]        
Interest expense related to debt, including commitment fees       $ (257,000)
Deferred finance costs amortization       (191,000)
Interest income $ 193,000 $ 2,000 $ 581,000 33,000
Other interest expense not related to debt   109,000   142,000
Interest income (expense), net 193,000 $ 111,000 581,000 $ (273,000)
Debt $ 0   $ 0  
Various Debt Instruments [Member]        
Debt Instrument [Line Items]        
Average effective interest rate, excluding commitment fees 0.00% 0.00% 0.00% 7.09%