CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT) (UNAUDITED) - USD ($) $ in Thousands	Total	Series C Convertible Preferred Stock [Member]	Non Restricted Common Stock [Member]	Common Stock [Member]	Common Stock [Member] Non Restricted Common Stock [Member]	Preferred Stock [Member] Convertible Preferred Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Non Restricted Common Stock [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Deficit [Member]
Balances at Dec. 31, 2020	$ (65,249)			$ 1		$ 169,548		$ 154		$ 0	$ (65,319)
Balances, shares at Dec. 31, 2020				5,593,240		12,647,934
Treasury stock, shares at Dec. 31, 2020							22,600,000
Treasury stock at Dec. 31, 2020							$ (85)
Stock-based compensation expense	587							587
Net loss	(38,700)										(38,700)
Balances at Mar. 31, 2021	(103,362)			$ 1		$ 169,548		741			(104,019)
Balances, shares at Mar. 31, 2021				5,593,240		12,647,934
Treasury stock, shares at Mar. 31, 2021							22,600,000
Treasury stock at Mar. 31, 2021							$ (85)
Balances at Dec. 31, 2020	(65,249)			$ 1		$ 169,548		154		0	(65,319)
Balances, shares at Dec. 31, 2020				5,593,240		12,647,934
Treasury stock, shares at Dec. 31, 2020							22,600,000
Treasury stock at Dec. 31, 2020							$ (85)
Unrealized gain on available-for-sale securities, net of tax
Net loss	(83,373)
Balances at Jun. 30, 2021	(144,624)			$ 1		$ 504,711		4,067		0	(148,692)
Balances, shares at Jun. 30, 2021				5,599,240		16,944,484
Treasury stock, shares at Jun. 30, 2021							0
Treasury stock at Jun. 30, 2021							$ 0
Balances at Mar. 31, 2021	(103,362)			$ 1		$ 169,548		741			(104,019)
Balances, shares at Mar. 31, 2021				5,593,240		12,647,934
Treasury stock, shares at Mar. 31, 2021							22,600,000
Treasury stock at Mar. 31, 2021							$ (85)
Issuance of convertible preferred stock, net of issuance costs		$ 335,163
Issuance of convertible preferred stock, shares		4,296,550
Issuance of common stock	66							66
Issuance of common stock, shares				6,000
Vesting of restricted common stock from early-exercised options	3							3
Stock-based compensation expense	3,342							3,342
Retirement of treasury shares							$ 85	(85)
Retirement of treasury shares, shares							(22,600,000)
Unrealized gain on available-for-sale securities, net of tax	0
Net loss	(44,673)										(44,673)
Balances at Jun. 30, 2021	(144,624)			$ 1		$ 504,711		4,067		0	(148,692)
Balances, shares at Jun. 30, 2021				5,599,240		16,944,484
Treasury stock, shares at Jun. 30, 2021							0
Treasury stock at Jun. 30, 2021							$ 0
Balances at Dec. 31, 2021	$ 558,019			$ 11		$ 0		850,125		(8)	(292,109)
Balances, shares at Dec. 31, 2021				110,782,909		0
Treasury stock, shares at Dec. 31, 2021	468,751						468,751
Treasury stock at Dec. 31, 2021	$ 0						$ 0
Repurchase of unvested restricted common stock				1,158,089			(1,158,089)
Vesting of restricted common stock from early-exercised options	1							1
Exercise of stock options, shares					50,353
Exercise of stock options			$ 47						$ 47
Stock-based compensation expense	1,983							1,983
Retirement of treasury shares, shares							(1,626,840)
Unrealized gain on available-for-sale securities, net of tax	8									8
Net loss	(100,666)										(100,666)
Balances at Mar. 31, 2022	459,392			$ 11		$ 0		852,156		0	(392,775)
Balances, shares at Mar. 31, 2022				109,675,173		0
Treasury stock, shares at Mar. 31, 2022							0
Treasury stock at Mar. 31, 2022							$ 0
Balances at Dec. 31, 2021	$ 558,019			$ 11		$ 0		850,125		(8)	(292,109)
Balances, shares at Dec. 31, 2021				110,782,909		0
Treasury stock, shares at Dec. 31, 2021	468,751						468,751
Treasury stock at Dec. 31, 2021	$ 0						$ 0
Issuance of Series A convertible preferred stock in exchange for license and common stock, shares	5,000,000
Issuance of Series A convertible preferred stock in exchange for license and common stock	$ (40,000)
Unrealized gain on available-for-sale securities, net of tax	8
Net loss	(151,656)
Balances at Jun. 30, 2022	$ 414,839			$ 11		$ 0		858,593		0	(443,765)
Balances, shares at Jun. 30, 2022				108,780,525		0
Treasury stock, shares at Jun. 30, 2022	992,648						992,648
Treasury stock at Jun. 30, 2022	$ 0						$ 0
Balances at Mar. 31, 2022	459,392			$ 11		$ 0		852,156		0	(392,775)
Balances, shares at Mar. 31, 2022				109,675,173		0
Treasury stock, shares at Mar. 31, 2022							0
Treasury stock at Mar. 31, 2022							$ 0
Repurchase of unvested restricted common stock				992,648			(992,648)
Exercise of stock options, shares					98,000
Exercise of stock options			$ 76						$ 76
Stock-based compensation expense	6,361							6,361
Unrealized gain on available-for-sale securities, net of tax
Net loss	(50,990)										(50,990)
Balances at Jun. 30, 2022	$ 414,839			$ 11		$ 0		$ 858,593		$ 0	$ (443,765)
Balances, shares at Jun. 30, 2022				108,780,525		0
Treasury stock, shares at Jun. 30, 2022	992,648						992,648
Treasury stock at Jun. 30, 2022	$ 0						$ 0