Related Parties - Other Related Party Transactions (Details) - USD ($)			3 Months Ended		9 Months Ended
	Feb. 28, 2020	Sep. 05, 2018	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Related Party Transaction [Line Items]
Other income			$ 110,000	$ (17,000)	$ 368,000	$ 304,000
Swets | Affiliated Entity
Related Party Transaction [Line Items]
Advisor agreement period		1 year
Other income		$ 300,000
Subsequent Event | Chief Financial Officer
Related Party Transaction [Line Items]
Consulting agreement, fee	$ 100,000
Consulting agreement, hourly fee	$ 165