Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands					12 Months Ended
	Aug. 18, 2021	Feb. 18, 2021	Feb. 16, 2021	Jul. 13, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Shareholders Equity [Line Items]
Net proceeds from sale of common stock		$ 12,200			$ 15,849	$ 4,289
Issuance of common stock, net of fees					$ 15,849	4,289
Stock issued during period shares warrants exercised					428,907
Proceeds from warrant exercises					$ 4,200
Weighted average exercise price					$ 9.71
Stockholders' Equity total amount					$ 25,457	$ 15,070	$ 21,086
Common Stock, shares issued					7,160,000	4,542,000
Common Stock, shares outstanding					7,160,000	4,542,000
Preferred Stock, shares issued					0	0
Preferred Stock, shares outstanding					0	0
Common Stock
Shareholders Equity [Line Items]
Shares issued (in shares)					2,189,000	850,000
Issuance of common stock, net of fees					$ 2	$ 1
Stockholders' Equity total amount					$ 7	5	$ 4
IPO [Member]
Shareholders Equity [Line Items]
Shares issued (in shares)			1,710,600
Net proceeds from sale of common stock			$ 13,000
2021 Public Offering [Member]
Shareholders Equity [Line Items]
Shares issued (in shares)			1,650,000
At-The-Market Offering Agreement [Member]
Shareholders Equity [Line Items]
Shares issued (in shares)					1,328,800
Public float					$ 75,000
Net proceeds from sale of common stock					8,000
Maximum aggregate offering price	$ 10,000			$ 7,000
Commission on aggregate gross proceeds (as a percent)				3.00%
Stockholders' Equity total amount					$ 25,500	$ 15,100
At-The-Market Offering Agreement [Member] | Common Stock
Shareholders Equity [Line Items]
Shares issued (in shares)					478,800
Net proceeds from sale of common stock					$ 8,400
Net proceeds					$ 3,700
Common Stock, shares issued					7,160,164
Common Stock, shares outstanding					7,160,164
At-The-Market Offering Agreement [Member] | Preferred Stock
Shareholders Equity [Line Items]
Preferred Stock, shares issued					0
Preferred Stock, shares outstanding					0