Equity Based Compensation - Restricted stock units activity (Details) - Restricted stocks units	3 Months Ended
	Mar. 31, 2020 USD ($) $ / shares shares
Weighted Average Grant Date Fair Value per Unit
Unrecognized equity based compensation expense | $	$ 708,000
Unrecognized equity based compensation expense expected period for recognition	3 years 2 months 12 days
2019 Equity Incentive Plan
Number of Shares
Outstanding at the beginning | shares
Granted | shares	66,216
Outstanding at the end | shares	66,216
Weighted Average Grant Date Fair Value per Unit
Outstanding at the beginning (in dollars per share) | $ / shares
Granted (in dollars per share) | $ / shares	10.84
Outstanding at the end (in dollars per share) | $ / shares	$ 10.84