| Component: (Network and Table) | |
|---|---|
| Network | 154 - Disclosure - Asset Retirement Obligation (Details) (http://www.isoray.com/role/AssetRetirementObligationDetails)  | 
| Table | Asset Retirement Obligation Disclosure [Table] | 
| Reporting Entity [Axis] | 0000728387 (http://www.sec.gov/CIK) | 
| Class of Stock [Axis] | Class of Stock [Domain] | 
| Asset Retirement Obligation [Line Items] | Period [Axis] | ||
|---|---|---|---|
2015-07-01 - 2016-06-30  | 2014-07-01 - 2015-06-30  | 2013-07-01 - 2014-06-30  | |
Beginning balance  | |||
Accretion of discount  | 88,915    | 81,289    | 74,318    | 
Gain on change in ARO estimate  | (  | ||
Ending balance  | 947,849    | 866,560    | |