Revenue recognition (Tables)

6 Months Ended

Jun. 30, 2020

Revenue recognition

Schedule of disaggregated revenue

	Three Months Ended								Six Months Ended
	June 30, 2020								June 30, 2020
(in thousands)	NA		EMEA		Asia Pacific		Total		NA		EMEA		Asia Pacific		Total
Product revenues
Instruments	$	1,220	$	1,009	$	535	$	2,764	$	2,973	$	1,735	$	1,744	$	6,452
Consumable and other products		1,734		1,897		395		4,026		4,658		4,601		912		10,171
Totals	$	2,954	$	2,906	$	930	$	6,790	$	7,631	$	6,336	$	2,656	$	16,623
Service and other revenues
Service-type warranties	$	731	$	385	$	59	$	1,175	$	1,479	$	764	$	111	$	2,354
Research services		4,394		513		75		4,982		8,061		595		613		9,269
Other services		75		67		18		160		306		127		23		456
Totals	$	5,200	$	965	$	152	$	6,317	$	9,846	$	1,486	$	747	$	12,079
Collaboration and license revenue
Collaboration and license revenue	$	22	$	1	$	—	$	23	$	144	$	11	$	—	$	155
Totals	$	22	$	1	$	—	$	23	$	144	$	11	$	—	$	155

	Three Months Ended								Six Months Ended
	June 30, 2019								June 30, 2019
(in thousands)	NA		EMEA		Asia Pacific		Total		NA		EMEA		Asia Pacific		Total
Product revenues
Instruments	$	1,159	$	893	$	651	$	2,703	$	2,556	$	2,038	$	1,525	$	6,119
Consumable and other products		3,655		2,095		323		6,073		7,274		4,183		747		12,204
Totals	$	4,814	$	2,988	$	974	$	8,776	$	9,830	$	6,221	$	2,271	$	18,322
Service and other revenues
Service-type warranties	$	814	$	300	$	28	$	1,142	$	1,503	$	534	$	65	$	2,102
Research services		2,771		223		213		3,207		4,275		223		213		4,711
Other services		200		209		2		411		401		317		19		737
Totals	$	3,785	$	732	$	243	$	4,760	$	6,179	$	1,074	$	297	$	7,550
Collaboration and license revenue
Collaboration and license revenue	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Totals	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—

Schedule of changes in deferred revenue from contracts with customers

Changes in deferred revenue from contracts with customers were as follows (in thousands):

	Six Months Ended June 30, 2020
Balance at December 31, 2019	$	5,163
Deferral of revenue		2,594
Recognition of deferred revenue		(2,354)
Balance at June 30, 2020	$	5,403

Schedule of costs to obtain a contract

	Six Months Ended June 30, 2020
Balance at December 31, 2019	$	335
Deferral of costs to obtain a contract		230
Recognition of costs to obtain a contract		(303)
Balance at June 30, 2020	$	262