XML 41 R27.htm IDEA: XBRL DOCUMENT
v3.6.0.2

STATEMENTS OF CASH FLOWS DATA (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2016
STATEMENTS OF CASH FLOWS DATA |
Supplemental schedule of non-cash operating and investing activities |
|  | Year Ended December 31, |
|  | 2016 |  | 2015 |  | 2014 |
|  | (In thousands) |
Supplemental operating activities: |  |  |  |  |  |  |  |  |  |
Issuance of common stock for 401(k) matching contributions |  | $ | — |  | $ | — |  | $ | 313 |
Reclassification between deposits and other current assets |  | $ | — |  | $ | — |  | $ | 190 |
Supplemental investing activities: |  |  |  |  |  |  |  |  |  |
Net unrealized gain (loss) on marketable securities |  | $ | 160 |  | $ | (129 | ) | $ | (70 | )

X
- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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