Annual report pursuant to Section 13 and 15(d)

Income Taxes - Summary of Net Operating Loss and General Business Credit Carryforwards (Details)

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Income Taxes - Summary of Net Operating Loss and General Business Credit Carryforwards (Details)
Dec. 31, 2019
USD ($)
Net operating loss carryforwards $ 132,824,000
General business credit carryforwards 3,898,000
Tax Year 2020 [Member]  
Net operating loss carryforwards 5,125,000
General business credit carryforwards 226,000
Tax Year 2021 [Member]  
Net operating loss carryforwards 5,378,000
General business credit carryforwards 56,000
Tax Year 2022 [Member]  
Net operating loss carryforwards 8,230,000
General business credit carryforwards 431,000
Tax Year 2023 [Member]  
Net operating loss carryforwards 5,434,000
General business credit carryforwards 362,000
Tax Year 2024 [Member]  
Net operating loss carryforwards 8,711,000
General business credit carryforwards 287,000
Thereafter [Member]  
Net operating loss carryforwards 99,946,000
General business credit carryforwards $ 2,536,000