Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Narrative (Details)

v3.19.1
Income Taxes - Narrative (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Operating Loss Carryforwards [Line Items]        
Income tax expense $ 177,000 $ 51,000    
Effective tax rate (as a percent) (2.13%) (0.29%)   33.87%
Accrued liability for uncertain tax positions $ 0      
Scenario, Forecast        
Operating Loss Carryforwards [Line Items]        
Effective tax rate (as a percent)     (2.31%)