Condensed Consolidated Statements of Convertible Preferred Stock and Stockholders' Deficit (Unaudited) - USD ($)	Total	Convertible Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated Deficit
Balances at Dec. 31, 2019	$ (17,138,000)			$ 268,000	$ (17,406,000)
Balances, shares at Dec. 31, 2019		7,063,104
Balances at Dec. 31, 2019		$ 59,681,000
Balances, shares at Dec. 31, 2019			642,903
Exercise of stock options	247,000		$ 1,000	246,000
Exercise of stock options, shares			124,828
Vesting of restricted common stock, shares			176,574
Stock-based compensation expense	237,000			237,000
Net loss	(11,150,000)				(11,150,000)
Balances at Jun. 30, 2020	(27,804,000)		$ 1,000	751,000	(28,556,000)
Balances, shares at Jun. 30, 2020		7,063,104
Balances at Jun. 30, 2020		$ 59,681,000
Balances, shares at Jun. 30, 2020			944,305
Balances at Mar. 31, 2020	(22,343,000)		$ 1,000	599,000	(22,943,000)
Balances, shares at Mar. 31, 2020		7,063,104
Balances at Mar. 31, 2020		$ 59,681,000
Balances, shares at Mar. 31, 2020			843,589
Exercise of stock options	26,000			26,000
Exercise of stock options, shares			13,064
Vesting of restricted common stock, shares			87,652
Stock-based compensation expense	126,000			126,000
Net loss	(5,613,000)				(5,613,000)
Balances at Jun. 30, 2020	(27,804,000)		$ 1,000	751,000	(28,556,000)
Balances, shares at Jun. 30, 2020		7,063,104
Balances at Jun. 30, 2020		$ 59,681,000
Balances, shares at Jun. 30, 2020			944,305
Balances at Dec. 31, 2020	(42,462,000)		$ 1,000	1,070,000	(43,533,000)
Balances, shares at Dec. 31, 2020		7,063,104
Balances at Dec. 31, 2020	$ 59,681,000.00	$ 59,681,000
Balances, shares at Dec. 31, 2020	1,135,858		1,135,858
Issuance of Series C convertible preferred stock (net of issuance costs of $270)		$ 99,730,000
Issuance of Series C convertible preferred stock (net of issuance costs of $270), shares		8,553,168
Exercise of stock options	$ 170,000			170,000
Exercise of stock options, shares			108,656
Vesting of restricted common stock, shares			175,305
Stock-based compensation expense	847,000			847,000
Net loss	(18,586,000)				(18,586,000)
Balances at Jun. 30, 2021	(60,030,000)		$ 1,000	2,088,000	(62,119,000)
Balances, shares at Jun. 30, 2021		15,616,272
Balances at Jun. 30, 2021	$ 159,411,000	$ 159,411,000
Balances, shares at Jun. 30, 2021	1,419,819		1,419,819
Balances at Mar. 31, 2021	$ (49,922,000)		$ 1,000	1,522,000	(51,445,000)
Balances, shares at Mar. 31, 2021		15,616,272
Balances at Mar. 31, 2021		$ 159,411,000
Balances, shares at Mar. 31, 2021			1,304,789
Exercise of stock options	63,000			63,000
Exercise of stock options, shares			27,378
Vesting of restricted common stock, shares			87,652
Stock-based compensation expense	503,000			503,000
Net loss	(10,674,000)				(10,674,000)
Balances at Jun. 30, 2021	(60,030,000)		$ 1,000	$ 2,088,000	$ (62,119,000)
Balances, shares at Jun. 30, 2021		15,616,272
Balances at Jun. 30, 2021	$ 159,411,000	$ 159,411,000
Balances, shares at Jun. 30, 2021	1,419,819		1,419,819