Revenue

12 Months Ended

Dec. 31, 2020

Revenue From Contract With Customer [Abstract]

Revenue

9. Revenue

CPRIT GRANT

In August 2017, the Company was awarded a $9.0 million grant (the “CPRIT Grant”) from the Cancer Research and Prevention Institute of Texas (“CPRIT”) to perform a phase IIB clinical trial to establish the safety and effectiveness of Viralym-M, in adults and children with a common, very severe virus infection (BK Virus) after stem cell transplant. The grant period was three years beginning September 1, 2017 through August 31, 2020. This grant had a matching requirement where the Company was obligated to match 50% of the grant funds used on the project. In addition, the grant included other compliance requirements including the obligation for the Company to operate with a principal place of business in Texas. There were no costs incurred to obtain or fulfill the contract. In November 2019, the Company provided CPRIT with written notice of its intent to terminate the grant. In December 2019, the Company returned $2.6 million of grant funds received, including interest relating to these funds in the amount of $0.1 million, and decreased its deferred revenue balance to zero. The Company received acknowledgment of the termination from CPRIT in January 2020.

In addition to the requirements above, the CPRIT Grant also required that the Company grant CPRIT a non-commercial license to technology developed under the grant and pay CPRIT a share of revenue on sales of commercial products developed using CPRIT funds equal to low single digits of revenue until such time as CPRIT has been paid an aggregate amount equal to 400% of the grant award proceeds. No royalty payments were made under this license agreement during the years ended December 31, 2020 and 2019, respectively.

The Company accounted for the CPRIT Grant under ASC 606, as CPRIT represents a customer to the Company and the performance obligations are clearly defined within the arrangement. Revenue recognized during the year ended December 31, 2019 from amounts included in the contract liability at the beginning of the period was $0.2 million.

The following table presents the changes in the Company’s contract liabilities during the year ended December 31, 2019:

(in thousands)	Balance at Beginning of Period		Additions		Deductions			Balance at End of Period
Contract liabilities:
Deferred revenue	$	2,663	$	—	$	(2,663	)	$	—