XML 58 R33.htm IDEA: XBRL DOCUMENT
v3.19.1

Fair Value of Financial Instruments (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Fair Value Disclosures [Abstract] |
Schedule of Company's Classified Assets Measured at Fair Value on Recurring Basis | the Company has classified assets measured at fair value on a recurring basis as follows (in thousands):
|  | Fair Value Measurements at Reporting Date Using |
|  | December 31, |  |  | Quoted Prices in Active Markets for Identical Assets |  |  | Significant Other Observable Inputs |  |  | Significant Unobservable Inputs |
Description |  | 2018 |  |  | (Level 1) |  |  | (Level 2) |  |  | (Level 3) |
Money market funds (included in cash and cash equivalents) |  | $ | 265 |  |  | $ | 265 |  |  | $ | — |  |  | $ | — |
Corporate debt securities (included in short-term investments) |  |  | 107,505 |  |  |  | — |  |  |  | 107,505 |  |  |  | — |
U.S. government agency securities and treasuries (included in short-term investments) |  |  | 3,972 |  |  |  | 1,987 |  |  |  | 1,985 |  |  |  | — |
Total |  | $ | 111,742 |  |  | $ | 2,252 |  |  | $ | 109,490 |  |  | $ | — |
|  | Fair Value Measurements at Reporting Date Using |
|  | December 31, |  |  | Quoted Prices in Active Markets for Identical Assets |  |  | Significant Other Observable Inputs |  |  | Significant Unobservable Inputs |
Description |  | 2017 |  |  | (Level 1) |  |  | (Level 2) |  |  | (Level 3) |
Money market funds (included in cash and cash equivalents) |  | $ | 21,301 |  |  | $ | 21,301 |  |  | $ | — |  |  | $ | — |
Corporate debt securities (included in cash and cash equivalents) |  |  | 11,405 |  |  |  | — |  |  |  | 11,405 |  |  |  | — |
Corporate debt securities (included in short-term investments) |  |  | 28,585 |  |  |  | — |  |  |  | 28,585 |  |  |  | — |
Total |  | $ | 61,291 |  |  | $ | 21,301 |  |  | $ | 39,990 |  |  | $ | — |

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

X
- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258 + Details
Name: | us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration