Summary of significant accounting policies (Tables)
|
12 Months Ended |
Dec. 31, 2015 |
|---|
| Summary of significant accounting policies |
|
| Schedule significant customer, revenue as a percentage |
|
|
|
December 31,
|
|
|
Customers
|
|
2015
|
|
2014
|
|
2013
|
|
|
Customer A
|
|
|
*
|
|
|
*
|
|
|
44
|
%
|
|
Customer B
|
|
|
*
|
|
|
15
|
%
|
|
—
|
|
|
Customer C
|
|
|
13
|
%
|
|
*
|
|
|
*
|
|
|
|
|
|
*
|
Less than 10% of total revenue
|
|
| Schedule of useful lives of property and equipment |
|
Furniture and fixtures
|
|
7 years
|
|
Automobiles
|
|
7 years
|
|
Laboratory equipment
|
|
5 years
|
|
Computer equipment
|
|
3 years
|
|
Software
|
|
3 years
|
|
Leasehold improvements
|
|
Shorter of lease term or estimated useful life
|
|