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CONDENSED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net loss	$ (10,993)	$ (5,179)
Other comprehensive loss:
Unrealized loss on securities available-for-sale	(606)	(67)
Total comprehensive loss	(11,599)	(5,246)
Preferred stock dividend payable on Series A Convertible Preferred Stock	(6)	(6)
Comprehensive loss attributable to common stockholders	$ (11,605)	$ (5,252)

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