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Reserved for Future Issuance (Details) - shares	Mar. 31, 2022	Dec. 31, 2021
Common Stock
Number of shares reserved for future issuance	10,105,025	9,784,254
Series X Preferred Stock
Common Stock
Number of shares reserved for future issuance	5,242,501	5,242,501
Warrants for the purchase of common stock
Common Stock
Number of shares reserved for future issuance	1,530,176	1,530,380
Options outstanding to purchase common Stock
Common Stock
Number of shares reserved for future issuance	1,962,650	1,346,733
Options available for future issuance to purchase common stock
Common Stock
Number of shares reserved for future issuance	1,332,716	1,633,736
Shares reserved for the employee stock purchase plan
Common Stock
Number of shares reserved for future issuance	36,982	30,904

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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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