Revenue (Tables)

6 Months Ended

Jun. 30, 2019

The Company’s revenues are generated entirely in the Netherlands. In the following table, revenue is disaggregated by primary source of revenue as follows:

Three months ended

Six months ended

June 30,
2019

June 30,
2018

June 30,
2019

June 30
2018

(euros in thousands)

Upfront payment amortization

4,231

4,250

8,436

9,087

R&D cost reimbursement

1,383

2,040

3,806

4,556

Milestone revenue

139

1,148

2,639

Revenue from contracts with customers

5,688

6,429

13,390

16,282

Income (expense) from grants on research projects

(109

)

114

(109

)

182

5,579

6,543

13,281

16,464

Summary of Changes in Tarde Receivables, Contract Assets and Contract Liabilities

The following table presents changes in the Company’s trade receivables, contract assets and contract liabilities during the six months ended June 30, 2019:


	Balance at December 31, 2018		Additions		Deductions			Balance at June 30, 2019
	*(euros in thousands)*
Trade receivables
Trade receivables		2,690		5,819		(7,116	)		1,393

Total trade receivables		2,690		5,819		(7,116	)		1,393

Contract assets
Unbilled receivables		236		114		(278	)		72

Total contract assets		236		114		(278	)		72

Contract liabilities
Deferred revenue		114,609		848		(8,583	)		106,874

Total contract liabilities		114,609		848		(8,583	)		106,874