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v3.20.1

Related Party Transactions (Details) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Nov. 30, 2016 | Mar. 31, 2016 | Jan. 31, 2016 | May 31, 2015 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2013 | Dec. 31, 2010
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Full payment |  |  |  |  |  | $ 0 | $ 0 | $ 1,000,000 |  |
Long-term other assets |  |  |  |  |  | $ 2,672,024 | 2,669,998 |  |  |
GeneOne (affiliated entity) |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Number of shares owned (shares) |  |  |  |  |  | 1,644,155 |  |  |  |
Payment received for license granted |  |  |  |  |  |  |  |  |  | $ 3,000,000
Term |  |  |  |  |  |  |  |  | 20 years |
Ownership target |  |  |  | 35.00% | 35.00% |  |  |  |  |
Full payment | $ 1,000,000 |  |  |  |  |  |  |  |  |
Revenue from related parties |  |  |  |  |  | $ 127,000 | 342,000 | 551,000 |  |
Operating expenses related to affiliated entity |  |  |  |  |  | 2,500,000 | 7,000,000 | $ 2,300,000 |  |
Accounts payable/accrued liability |  |  |  |  |  | 511,000 | 372,000 |  |  |
Long-term other assets |  |  |  |  |  | 284,000 | 381,000 |  |  |
Accounts receivable |  |  |  |  |  | $ 128,000 | 0 |  |  |
PLS (affiliated entity) |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Number of shares owned (shares) |  |  |  |  |  | 395,758 |  |  |  |
Revenue from related parties |  |  |  |  |  | $ 111,000 | 107,000 |  |  |
Accounts receivable |  |  |  |  |  | 589,000 | 478,000 |  |  |
The Wistar Institute |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Term |  |  | 5 years |  |  |  |  |  |  |
Operating expenses related to affiliated entity |  |  |  |  |  | 1,500,000 | 1,800,000 |  |  |
Accounts receivable |  |  |  |  |  | 616,000 | 258,000 |  |  |
Expenses to reimburse |  |  | $ 3,100,000 |  |  |  |  |  |  |
Proceeds from sub-grant |  | $ 6,100,000 |  |  |  |  |  |  |  |
Grant proceeds received |  |  |  |  |  | 2,200,000 | 3,300,000 |  |  |
Due to related parties |  |  |  |  |  | 219,000 | $ 554,000 |  |  |
Deferred grant funding from affiliate |  |  |  |  |  | $ 843,000 |  |  |  |

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