v3.19.3

Net loss per share attributable to common stockholders (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2019
Net loss per share attributable to common stockholders |
Schedule of computation of basic and diluted net loss per share attributable to common stockholders | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Nine Months Ended
​ | ​ | September 30, | ​ | September 30,
​ |  | 2019 |  | 2018 |  | 2019 |  | 2018
​ | ​ | (in thousands)
Numerator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net loss attributable to common stockholders, basic and diluted | ​ | $ | (187) | ​ | $ | (522) | ​ | $ | (5,124) | ​ | $ | (1,636)
Denominator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average common stock, basic and diluted | ​ |  | 44,136 | ​ |  | 42,377 | ​ | ​ | 43,904 | ​ | ​ | 41,890
Net loss per share attributable to common stockholders: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | $ | 0.00 | ​ | $ | (0.01) | ​ | $ | (0.12) | ​ | $ | (0.04)
Diluted | ​ | $ | 0.00 | ​ | $ | (0.01) | ​ | $ | (0.12) | ​ | $ | (0.04)

X
- References No definition available. + Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration