XML 41 R41.htm IDEA: XBRL DOCUMENT
v3.20.1

Stockholders' Equity (Details) | 3 Months Ended
--- | ---
Mar. 31, 2020 $ / shares shares
Subsidiary, Sale of Stock [Line Items] |
Warrants issued to purchase redeemable convertible preferred stock | 436,581
Number of warrants exercised | 24,692
Number of common shares to be called upon exercise of warrants | 22,366
Warrant expiration January 19, 2026 |
Subsidiary, Sale of Stock [Line Items] |
Warrants issued to purchase redeemable convertible preferred stock | 259,975
Exercise Price | $ / shares | $ 1.84
Warrant expiration March 31, 2026 |
Subsidiary, Sale of Stock [Line Items] |
Warrants issued to purchase redeemable convertible preferred stock | 71,753
Exercise Price | $ / shares | $ 1.84
Warrant expiration April 1, 2026 |
Subsidiary, Sale of Stock [Line Items] |
Warrants issued to purchase redeemable convertible preferred stock | 131
Exercise Price | $ / shares | $ 1.84
Warrant expiration September 8, 2024 |
Subsidiary, Sale of Stock [Line Items] |
Warrants issued to purchase redeemable convertible preferred stock | 83,778
Exercise Price | $ / shares | $ 14.32
Warrant expiration December 7, 2025 |
Subsidiary, Sale of Stock [Line Items] |
Warrants issued to purchase redeemable convertible preferred stock | 20,944
Exercise Price | $ / shares | $ 14.32

X
- Definition Class of Warrant or Right, Exercised + References No definition available. + Details
Name: | exdx_ClassOfWarrantOrRightExercised
Namespace Prefix: | exdx_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(4)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of warrants or rights outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SubsidiarySaleOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=exdx_ExpirationJan192026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=exdx_ExpirationMar312026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=exdx_ExpirationApr12026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=exdx_ExpirationSep82024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=exdx_ExpirationDec72025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |