Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Convertible Preferred Stock Series A [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock, Common [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2023	$ 5,577	$ 81	$ 554,148	$ (206)	$ (537,680)	$ 16,343
Balance, shares at Dec. 31, 2023	22,358	80,949,697
Stock issued for the exercise of stock options			12			12
Stock issued for the exercise of stock options, shares		11,763
Stock-based compensation			5,127			5,127
Stock-based compensation, shares		504,375
Components of net loss					(10,340)	(10,340)
Employee stock purchase plan			46			46
Employee stock purchase plan, shares		23,022
Preferred stock conversion	$ (169)	$ 2	166			168
Preferred stock conversion, shares	(675)	1,501,302
Balance at Jun. 30, 2024	$ 5,408	$ 83	559,499	(206)	(548,020)	11,356
Balance, shares at Jun. 30, 2024	21,683	82,990,159
Balance at Mar. 31, 2024	$ 5,464	$ 82	556,878	(206)	(542,187)	14,567
Balance, shares at Mar. 31, 2024	21,908	82,132,777
Stock issued for the exercise of stock options			4			4
Stock issued for the exercise of stock options, shares		2,213
Stock-based compensation			2,538			2,538
Stock-based compensation, shares		342,901
Components of net loss					(5,833)	(5,833)
Employee stock purchase plan			24			24
Employee stock purchase plan, shares		9,634
Preferred stock conversion	$ (56)	$ 1	55			56
Preferred stock conversion, shares	(225)	502,634
Balance at Jun. 30, 2024	$ 5,408	$ 83	559,499	(206)	(548,020)	11,356
Balance, shares at Jun. 30, 2024	21,683	82,990,159
Balance at Dec. 31, 2024	$ 5,352	$ 85	567,926	(206)	(561,725)	6,080
Balance, shares at Dec. 31, 2024	21,458	85,326,557
Stock issued for the exercise of stock options			3			3
Stock issued for the exercise of stock options, shares		5,603
Stock-based compensation			4,902			4,902
Stock-based compensation, shares		120,908
Components of net loss					(9,649)	(9,649)
Employee stock purchase plan			63			63
Employee stock purchase plan, shares		33,741
Preferred stock conversion	$ (56)	$ 1	56			57
Stock Issued During Period, Shares, New Issues	(225)	518,055
Balance at Jun. 30, 2025	$ 5,296	$ 86	572,950	(206)	(571,374)	1,456
Balance, shares at Jun. 30, 2025	21,233	86,004,864
Balance at Mar. 31, 2025	$ 5,296	$ 86	570,548	(206)	(567,548)	2,880
Balance, shares at Mar. 31, 2025	21,233	85,983,677
Stock issued for the exercise of stock options			2			2
Stock issued for the exercise of stock options, shares		1,500
Stock-based compensation			2,367			2,367
Components of net loss					(3,826)	(3,826)
Employee stock purchase plan			33			33
Employee stock purchase plan, shares		19,687
Balance at Jun. 30, 2025	$ 5,296	$ 86	$ 572,950	$ (206)	$ (571,374)	$ 1,456
Balance, shares at Jun. 30, 2025	21,233	86,004,864