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Stock-Based Compensation, Equity Compensation Plans (Details) - shares
6 Months Ended 12 Months Ended
Jun. 11, 2025
Jul. 14, 2023
Jun. 30, 2025
Dec. 31, 2014
Jan. 22, 2024
May 17, 2022
Dec. 08, 2020
Jun. 17, 2019
Mar. 31, 2019
The Plans [Member] | Incentive Stock Options [Member]                  
Stock Options [Abstract]                  
Vesting period     4 years            
The Plans [Member] | Incentive Stock Options [Member] | Maximum [Member]                  
Stock Options [Abstract]                  
Term of option     10 years            
2014 Equity Incentive Plan [Member]                  
Stock Options [Abstract]                  
Number of shares authorized for issuance (in shares)   6,565,535   91,367     4,165,535   826,292
Percentage of Common Stock outstanding used to determine annual increase in the plan limit       4.00%          
Additional shares authorized for issuance (in shares) 3,144,049 2,400,000              
Shares available for grant (in shares)     3,409,087            
2019 Inducement Plan [Member]                  
Stock Options [Abstract]                  
Number of shares authorized for issuance (in shares)         2,100,000 1,100,000 500,000 200,000  
Shares available for grant (in shares)     957,407