Collaborations and License Agreements (Tables)

3 Months Ended

Mar. 31, 2019

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Summary of Revenues Earned in Connection with EUSA Agreement under ASC 606

The following table summarizes the revenues earned in connection with the EUSA Agreement under ASC 606 for the three months ended March 31, 2019 and 2018 (in thousands):

		Three Months Ended March 31,		Three Months Ended March 31,
Revenue Type	Date Achieved	2019		2018
Collaboration and Licensing Revenue:
Amounts in contract liabilities at the beginning of the period:
Upfront payment	December 2015	$	99	$	99
R&D payment - EMA approval in RCC	August 2017		158		158
Milestone - UK reimbursement approval	February 2018		79		723
Milestone - German reimbursement approval	November 2018		79		—
New amounts in contract liabilities during the current period:
Milestone - Spanish reimbursement approval	February 2019		1,039		—
		$	1,454	$	980
Partnership Royalties			157		46
Total		$	1,611	$	1,026

Summary of Changes in Accounts Receivable and Contract Liabilities (Deferred Revenue)

The following table summarizes changes in the Company’s accounts receivable and contract liabilities (deferred revenue) in connection with the EUSA Agreement for the three months ended March 31, 2019 (in thousands):

Contract Assets						Beginning Balance January 1, 2019		Additions		Deductions			Ending Balance March 31, 2019
Accounts Receivable						$	187	$	2,157	$	(187	)		2,157
						Deferred Revenue
Contract Liabilities	Transaction Price		Date Achieved	Date Paid		Beginning Balance January 1, 2019		Additions		Deductions			Ending Balance March 31, 2019
Amounts in contract liabilities at the beginning of the period:
Upfront payment	$	2,500	December 2015	December 2015		$	1,302	$	—	$	(99	)	$	1,203
R&D payment - EMA approval in RCC		4,000	August 2017	September 2017			2,079		—		(158	)		1,921
Milestone - UK reimbursement approval		2,000	February 2018	March 2018			1,040		—		(79	)		961
Milestone - German reimbursement    approval		2,000	November 2018	December 2018			1,039		—		(79	)		960
New amounts in contract liabilities during    the current period:
Milestone - Spanish reimbursement    approval		2,000	February 2019		—		—		1,000		(39	)		961
Total	$	12,500				$	5,460	$	1,000	$	(454	)	$	6,006