Quarterly report pursuant to Section 13 or 15(d)

Cash and Cash Equivalents (Details)

v3.19.2
Cash and Cash Equivalents (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Jun. 30, 2018
Cash and Cash Equivalents [Abstract]      
Cash on deposit at banks $ 1,645 $ 1,936  
Money market funds 4,891 4,436  
Cash and cash equivalents $ 6,536 $ 6,372 $ 7,530