Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Details)

v3.20.1
Income Taxes - Additional Information (Details)
Dec. 31, 2019
USD ($)
Operating Loss Carryforwards [Line Items]  
Federal and State Net Operating Loss Carryforwards $ 3,400,000
US  
Operating Loss Carryforwards [Line Items]  
Federal and State Net Operating Loss Carryforwards 118,000,000
UNITED KINGDOM  
Operating Loss Carryforwards [Line Items]  
Federal and State Net Operating Loss Carryforwards 129,000
Japan  
Operating Loss Carryforwards [Line Items]  
Federal and State Net Operating Loss Carryforwards 1,350,000
Federal And State  
Operating Loss Carryforwards [Line Items]  
Federal and State Net Operating Loss Carryforwards $ 3,500,000