XML 26 R38.htm IDEA: XBRL DOCUMENT v3.19.3
Leases - Additional information (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Leases        
Operating Leases, Rent Expense $ 83,000 $ 80,000 $ 246,000 $ 243,000