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v3.21.2

PREPAIDS | 9 Months Ended
--- | ---
Jun. 30, 2021
PREPAIDS |
PREPAIDS | 5. PREPAIDS ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | June 30, | ​ | ​ | September 30,
​ |  | 2021 |  | 2020
​ | ​ | ​ | ​ | ​ | ​ | ​
Prepaid insurance | ​ | $ | 149,179 |  | $ | 825,014
Prepaid CMC and clinical expenses and deposits | ​ |  | 126,000 |  | ​ | 650,586
Other deposits and prepaid expenses | ​ |  | 188,610 |  | ​ | 124,528
​ | ​ | ​ | ​ | ​ | ​ | ​
Balance, end of period | ​ | $ | 463,789 |  | $ | 1,600,128
​

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- Definition Prepaid Expenses [Text Block] + References No definition available. + Details
Name: | epix_PrepaidExpensesTextBlock
Namespace Prefix: | epix_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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