XML 32 R21.htm IDEA: XBRL DOCUMENT v3.23.3
Mineral Rights and Properties, Net (Tables)
 3 Months Ended
Sep. 30, 2023
Mineral Properties, Net [Abstract]  
Summary of Mineral Rights and Properties

Mineral rights and properties, net consisted of the following.

 

 

September 30,

 

 

June 30,

 

 

 

2023

 

 

2023

 

 

 

(in thousands)

 

Mineral properties

 

$

6,733

 

 

$

6,733

 

Hydrology wells

 

 

547

 

 

 

547

 

Asset retirement cost, net of accumulated amortization
   of $28 and $23 at September 30, 2023 and June 30, 2023, respectively (1)

 

 

352

 

 

 

357

 

Mineral rights and properties, net

 

$

7,632

 

 

$

7,637

 

(1) Asset retirement costs represent the carrying value of capitalized costs associated with asset retirement obligations discussed in Note 5.