Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies Related to Discontinued Operations (Details)

v3.19.1
Commitments and Contingencies Related to Discontinued Operations (Details) - USD ($)
Mar. 31, 2019
Dec. 31, 2018
Discontinued Operations And Disposal Groups [Abstract]    
Contingency provision related to discontinued operations $ 487,000 $ 497,000