CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Preferred Stock Series A Preferred Stock	Preferred Stock Series B Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income	Accumulated Deficit	Total
Balance at beginning of period at Dec. 31, 2023	$ 49		$ 86	$ 1,291,790		$ (1,223,223)	$ 68,702
Balance at beginning of period (in shares) at Dec. 31, 2023	984,000	2,000	11,495,000
Increase (Decrease) in Stockholders' Equity
Exercise of stock options			$ 2	1,830			1,832
Exercise of stock options (in shares)			302,000
Stock-based compensation expense - equity-classified				10,312			10,312
Issuance of common stock related to 401(k) contribution and ESPP			$ 1	287			288
Issuance of common stock related to 401(k) contribution and ESPP (in shares)			20,000
Issuance of common stock related to PSUs			$ 1				1
Issuance of common stock related to PSUs (in shares)			136,000
Repurchase of common stock						(13)	(13)
Repurchase of common stock (in shares)			(1,000)
Preferred stock dividends				(5,472)			(5,472)
Net unrealized gain (loss) on available-for-sale debt securities					$ 73		73
Net Income (Loss)						(13,821)	(13,821)
Balance at end of period at Dec. 31, 2024	$ 49		$ 90	1,298,747	73	(1,237,057)	61,902
Balance at end of period (in shares) at Dec. 31, 2024	984,000	2,000	11,952,000
Increase (Decrease) in Stockholders' Equity
Exercise of stock options			$ 2	1,876			$ 1,878
Exercise of stock options (in shares)			247,000				246,395
Stock-based compensation expense - equity-classified				6,816			$ 6,816
Issuance of common stock related to 401(k) contribution and ESPP				322			322
Issuance of common stock related to 401(k) contribution and ESPP (in shares)			19,000
Issuance of common stock related to RSUs (in shares)			15,000
Issuance of common stock related to PSUs			$ 2	(2)
Issuance of common stock related to PSUs (in shares)			265,000
Repurchase of common stock			$ (5)			(16,105)	(16,110)
Repurchase of common stock (in shares)			(648,000)
Issuance of common stock under ATM, net of financing costs of $313,000 (in shares)			9,000
Reclassification of equity classified awards to liability classified awards				(739)			(739)
Issuance of Series B Preferred Stock under ATM, net of financing costs of $265,000				3,708			3,708
Preferred stock dividends				(5,528)			(5,528)
Net unrealized gain (loss) on available-for-sale debt securities					(20)		(20)
Net Income (Loss)						31,712	31,712
Balance at end of period at Dec. 31, 2025	$ 49		$ 89	$ 1,305,200	$ 53	$ (1,221,450)	$ 83,941
Balance at end of period (in shares) at Dec. 31, 2025	984,000	2,000	11,859,000