Equity Transactions and Share-based Compensation - Narrative (Details) - USD ($)		1 Months Ended			3 Months Ended		6 Months Ended		12 Months Ended
	Jan. 01, 2023	Jul. 31, 2024	Apr. 30, 2024	Nov. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2022	Feb. 29, 2024
Share-based Compensation Arrangement by Share-based Payment Award
Shares issued for restricted stock units (in shares)					0	0	281,000	221,000
One-time employee termination benefits								$ 600,000	$ 400,000
Share-based payment arrangement, expense					$ 2,193,000	$ 2,959,000	$ 4,942,000	7,324,000
Options granted (in shares)			223,000	950,000
Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)		120,000
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award
Expiration period							10 years
Vesting period							4 years
Independent Members Of Board
Share-based Compensation Arrangement by Share-based Payment Award
Share-based payment arrangement, expense								$ 300,000
The 2013 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares reserved for future issuance (in shares)					10,200,000		10,200,000
Shares issued pursuant to the exercise of stock options (in shares)					2,000	0	2,000	0
The 2013 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award
Additional shares authorized (in shares)	422,535
Number of shares reserved for future issuance (in shares)					1,800,000		1,800,000
Number of shares authorized to be granted (in shares)					4,800,000		4,800,000
Participation term (in months)							24 months
Percentage of pay that employee can contribute, maximum (as a percent)					15.00%		15.00%
Discounted purchase price from market price, offering date (as a percent)							15.00%
Discounted purchase price from market price, purchase date (as a percent)							15.00%
Purchase interval (in months)							6 months
Shares issued pursuant to employee stock purchase plan (in shares)							420,000	308,000
Public Offering
Share-based Compensation Arrangement by Share-based Payment Award
Sale of common stock, amount authorized										$ 250,000,000
Public Offering | Jeffries LLC
Share-based Compensation Arrangement by Share-based Payment Award
Sale of common stock, amount authorized										$ 75,000,000