Organization and Description of Business - General (Details) $ / shares in Units, $ in Thousands	Sep. 28, 2018 USD ($) $ / shares shares	Jun. 30, 2020 USD ($) subsidiary	Dec. 31, 2019 USD ($)
Number of subsidiaries | subsidiary		4
Going Concern
Cash and cash equivalents | $		$ 50,771	$ 16,034
Initial Public Offering
Shares issued (in shares) | shares	5,000,000
Share price (in dollars per share) | $ / shares	$ 15.00
Proceeds from initial public offering, net of issuance costs paid in the period | $	$ 65,600
Preferred stock including accrued dividends, converted into common stock | shares	8,084,414