XML 29 R19.htm IDEA: XBRL DOCUMENT
v3.21.2

Cash and Cash Equivalents and Investments (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2021
Cash and Cash Equivalents and Investments [Abstract] |
Schedule of Cash, Cash Equivalents and Short-term Investments [Table Text Block] |
|  | As of June 30, 2021
|  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
|  | (in thousands)
Cash and cash equivalents |  | $ | 89,887 |  |  | $ | — |  |  | $ | — |  |  | $ | 89,887 |
Securities maturing within one year: |  |  |  |  |  |  |  |
U.S. treasury securities |  | 15,182 |  |  | 1 |  |  | — |  |  | 15,183 |
Corporate debt securities |  | 13,437 |  |  | 5 |  |  | (11) |  |  | 13,431 |
Total short-term investments |  | $ | 28,619 |  |  | $ | 6 |  |  | $ | (11) |  |  | $ | 28,614 |
Total cash and cash equivalents and investments |  | $ | 118,506 |  |  | $ | 6 |  |  | $ | (11) |  |  | $ | 118,501 |
|  | As of December 31, 2020
|  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
|  |  |  | (in thousands) |  |
Cash and cash equivalents |  | $ | 126,263 |  |  | $ | — |  |  | $ | — |  |  | $ | 126,263 |
Securities maturing within one year: |  |  |  |  |  |  |  |
Corporate debt securities |  | 26,018 |  |  | 5 |  |  | (11) |  |  | 26,012 |
Total short-term investments |  | $ | 26,018 |  |  | $ | 5 |  |  | $ | (11) |  |  | $ | 26,012 |
Total cash and cash equivalents and investments |  | $ | 152,281 |  |  | $ | 5 |  |  | $ | (11) |  |  | $ | 152,275 |

X
- Definition Cash and Cash Equivalents and Investments [Abstract] + References No definition available. + Details
Name: | lxrx_CashAndCashEquivalentsAndInvestmentsAbstract
Namespace Prefix: | lxrx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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