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Related Party Transactions (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended			3 Months Ended		6 Months Ended
	Mar. 15, 2026	Jan. 26, 2026	Feb. 28, 2026	Jul. 31, 2024	Aug. 31, 2020	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Related Party Transactions
Total owed under promissory note						$ 40,000		$ 40,000		$ 54,494
Preferred Stock Liquidating Preference						$ 25		$ 25		$ 25
Partner company redeemable perpetual preferred liability			$ 7,100			$ 0		$ 0		$ 7,085
Fair value of embedded derivative								(7,085)
Cyprium \| Related Party
Related Party Transactions
Monthly cash dividend					$ 0.19531
Annual cash dividend payable					2.34375
Preferred Stock Liquidating Preference					$ 25
Exchange term					24 months
Number of shares exchanged for cash					283,400
Shared Services Agreement \| TGTX
Related Party Transactions
Revenue - related party							$ 400	$ 0	$ 500
Desk Share Agreement \| Related Party
Related Party Transactions
Revenue - related party						500	900
Total payment for rent						700	1,400
Desk Share Agreement \| TGTX
Related Party Transactions
Percentage of rent payable by counterparty								65.00%
Amended Desk Share Agreement \| Related Party
Related Party Transactions
Revenue - related party						400		$ 1,100
Amount recognized in lease costs						700		1,400
Capitalized sublease cost						0		700
Amended Desk Share Agreement \| TGTX
Related Party Transactions
Percentage of rent payable by counterparty	50.00%
Amended Desk Share Agreement \| TGTX \| Related Party
Related Party Transactions
Other receivables						500		500
Journey \| Shared Services Agreement \| Related Party
Related Party Transactions
Other receivables						400		400
Proceeds from Related Party Agreement						$ 12	$ 10	$ 25	$ 22
Cyprium
Related Party Transactions
Preferred Stock Liquidating Preference			$ 25
Partner company derivative liability			$ 7,100
Consideration received			205,000
Fair value of embedded derivative			7,100
Redemption Price for Preferred Stock			$ 14,200
Cyprium \| Promissory Note
Related Party Transactions
Converted amount		$ 5,000
Total owed under promissory note		$ 11,700
Newly issued common shares		2,500,000
9.375% Series A Cumulative Redeemable Perpetual Preferred Stock, $0.001 par value
Related Party Transactions
Dividend rate percentage				9.375%
9.375% Series A Cumulative Redeemable Perpetual Preferred Stock, $0.001 par value \| Cyprium
Related Party Transactions
Dividend rate percentage								9.375%
Fair value of embedded derivative								$ 7,100
9.375% Series A Cumulative Redeemable Perpetual Preferred Stock, $0.001 par value \| Cyprium \| Related Party
Related Party Transactions
Dividend rate percentage					9.375%
Issuance of common stock for equity offering, net (in shares)					320,000