Annual report pursuant to Section 13 and 15(d)

Debt (Schedule of Interest Information) (Details)

v3.20.1
Debt (Schedule of Interest Information) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Debt Instrument [Line Items]      
Interest expense related to debt, including commitment fees   $ (257) $ (997)
Deferred finance costs amortization   (191) (369)
Interest income $ 733 270 7
Other interest expense not related to debt   33 (55)
Interest income (expense), net $ 733 $ (145) $ (1,414)
Various Debt Instruments [Member]      
Debt Instrument [Line Items]      
Average effective interest rate, excluding commitment fees   7.09% 6.72%