XML 38 R26.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Cash and Cash Equivalents (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2015
Cash and Cash Equivalents |
Schedule of summary of cash and cash equivalents |
​ | ​ | ​ | December 31, | ​
​ | ​ | ​ | 2014 | ​ | ​ | 2015 | ​
Cash | ​ | ​ | ​ | $ | 5,870 | ​ | ​ | ​ | ​ | $ | 8,487 | ​ | ​
Investments with original maturity of less than three months at the time of purchase | ​ | ​ | ​ | ​ | 18,319 | ​ | ​ | ​ | ​ | ​ | 11,953 | ​ | ​
Total cash and cash equivalents | ​ | ​ | ​ | $ | 24,189 | ​ | ​ | ​ | ​ | $ | 20,440 | ​ | ​
​

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

X
- Definition Tabular disclosure of the components of cash and cash equivalents. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCashAndCashEquivalentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration