Related Party Transactions	9 Months Ended
Related Party Transactions	Sep. 30, 2020
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Third Security and Affiliates The Company's Executive Chairman is also the Senior Managing Director and CEO of Third Security and owns 100% of the equity interests of Third Security. Through December 2019, the Company was party to a Services Agreement ("Services Agreement") with Third Security pursuant to which Third Security provided the Company with certain professional, legal, financial, administrative, and other support services necessary to support the Company and its Executive Chairman. Under the Services Agreement, as consideration for providing these services, Third Security was entitled to a fee paid in the form of fully-vested shares of Precigen common stock that approximated $800 per month. In 2019, the number of shares of common stock was calculated based on the volume weighted average of the closing price of the Company's common stock over the 30-day period ending on the 15th day of the calendar month when the applicable services were provided. For the three and nine months ended September 30, 2019, the Company issued 340,453 shares and 1,180,446 shares, respectively, with values of $1,855 and $6,217, respectively, to Third Security as payment for services rendered pursuant to the Services Agreement. Following the expiration of the Services Agreement, the Company entered into a new agreement with Third Security under which the Company reimburses Third Security for certain tax-related services performed by Third Security as requested by the Company. The Company also reimburses Third Security for certain out-of-pocket expenses incurred on the Company's behalf prior to and after the expiration of the Services Agreement under a separate agreement. The total expenses incurred by the Company under these arrangements were $56 and $8 for the three months ended September 30, 2020 and 2019, respectively, and $132 and $26 for the nine months ended September 30, 2020 and 2019, respectively. See also Note 14 regarding compensation arrangements between the Company and its Executive Chairman. The Company also subleases certain administrative offices to Third Security. The significant terms of the lease mirror the terms of the Company's lease with the landlord, and the Company recorded sublease income of $18 and $22 for the three months ended September 30, 2020 and 2019, respectively, and $64 and $66 for the nine months ended September 30, 2020 and 2019, respectively. See Notes 1, 3, and 13 regarding additional transactions with affiliates of Third Security. Transactions with ECC Parties Collaborators in which the Company holds more than a de minimis equity interest, including interests received as upfront or milestone payments through collaborations, are considered related parties. The Company held Series A Convertible Preferred Stock (the "Convertible Preferred Shares"), a convertible note, common shares of Castle Creek, and warrants to purchase shares of Castle Creek common stock previously acquired through collaborations and other transactions. As a result of the acquisition of Castle Creek by Castle Creek Pharmaceutical in December 2019, the Company received $1,280 in December 2019 for its shares of Castle Creek common stock and received a total of $3,311 in January 2020 for the Convertible Preferred Shares and the convertible note, including accrued interest thereon. The $3,311 is included in other receivables on the accompanying condensed consolidated balance sheet as of December 31, 2019. Subsequent to the acquisition by Castle Creek Pharmaceutical, Castle Creek is no longer a related party.