Net Loss Per Share Attributable to Common Shareholders (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Schedule of basic and diluted net loss per share

(in thousands, except share and per share data)	2021			2020
Numerator:
Net loss attributable to common stockholders	$	(9,740	)	$	(19,277	)
Denominator:
Weighted average shares outstanding		61,558,455			17,503,992
Net loss per share attributable to common stockholders, basic and diluted	$	(0.16	)	$	(1.10	)

Schedule of dilutive securities were excluded from the computation of diluted net loss per share

	2021		2020
Convertible stock warrants (See Note 11)		482,703		—
Common stock warrants (see Note 10)		4,477,045		4,446,613
Options to purchase common stock		10,395,027		7,032,591
Unvested restricted stock awards		916,603		—
Unit purchase option to purchase common stock (see Note 1)		—		242,000
Earn-out shares (see Note 3 and 12)		6,592,334		9,096,185
Total		22,863,712		20,817,389