Stockholders' Equity - Warrants (Details) - USD ($)	Jan. 31, 2023	Jan. 31, 2022
Class of Warrant or Right [Line Items]
Exercise Price (usd per share)	$ 0.01
TriplePoint Equity-Classified Common Stock Warrants Issued Nov 2016
Class of Warrant or Right [Line Items]
Number of Shares (in shares)	82,891	82,891
Exercise Price (usd per share)	$ 7.54	$ 7.54
Fair Value at Issuance	$ 300,000	$ 300,000
TriplePoint Equity-Classified Common Stock Warrants Issued Jun 2017
Class of Warrant or Right [Line Items]
Number of Shares (in shares)	18,236	18,236
Exercise Price (usd per share)	$ 7.54	$ 7.54
Fair Value at Issuance	$ 100,000	$ 100,000
TriplePoint Equity-Classified Common Stock Warrants Issued Sep 2017
Class of Warrant or Right [Line Items]
Number of Shares (in shares)	14,920	14,920
Exercise Price (usd per share)	$ 7.54	$ 7.54
Fair Value at Issuance	$ 100,000	$ 100,000
TriplePoint Equity-Classified Common Stock Warrants Issued Jan 2018
Class of Warrant or Right [Line Items]
Number of Shares (in shares)	16,578	16,578
Exercise Price (usd per share)	$ 7.54	$ 7.54
Fair Value at Issuance	$ 100,000	$ 100,000
TriplePoint Equity-Classified Common Stock Warrants Issued Apr 2018
Class of Warrant or Right [Line Items]
Number of Shares (in shares)	16,578	16,578
Exercise Price (usd per share)	$ 7.54	$ 7.54
Fair Value at Issuance	$ 100,000	$ 100,000
TriplePoint Equity-Classified Common Stock Warrants Issued Nov 2015
Class of Warrant or Right [Line Items]
Number of Shares (in shares)	35,215	35,215
Exercise Price (usd per share)	$ 17.04	$ 17.04
Fair Value at Issuance	$ 200,000	$ 200,000
TriplePoint Equity-Classified Common Stock Warrants Issued Jun 2016
Class of Warrant or Right [Line Items]
Number of Shares (in shares)	28,172	28,172
Exercise Price (usd per share)	$ 17.04	$ 17.04
Fair Value at Issuance	$ 200,000	$ 200,000
TriplePoint Equity-Classified Common Stock Warrants Issued Sep 2016
Class of Warrant or Right [Line Items]
Number of Shares (in shares)	24,650	24,650
Exercise Price (usd per share)	$ 17.04	$ 17.04
Fair Value at Issuance	$ 100,000	$ 100,000
Double Helix Temasek Equity-Classified Common Stock Warrants Two Issued October 2021
Class of Warrant or Right [Line Items]
Number of Shares (in shares)	394,343	394,343
Exercise Price (usd per share)	$ 21.00	$ 21.00
Fair Value at Issuance	$ 5,300,000	$ 5,300,000
Double Helix Temasek Equity-Classified Common Stock Warrants Two Issued January 2023
Class of Warrant or Right [Line Items]
Number of Shares (in shares)	2,000,000
Exercise Price (usd per share)	$ 5.00
Fair Value at Issuance	$ 6,900,000
Double Helix Temasek Equity-Classified Common Stock Warrants One Issued Jul 2018
Class of Warrant or Right [Line Items]
Number of Shares (in shares)		730,000
Exercise Price (usd per share)		$ 27.40
Fair Value at Issuance		$ 1,300,000
Equity Classified Common Stock Warrants
Class of Warrant or Right [Line Items]
Number of Shares (in shares)	2,631,583	1,361,583
Fair Value at Issuance	$ 13,400,000	$ 7,800,000
Liability-Classified Common Stock Warrants
Class of Warrant or Right [Line Items]
Fair Value at Issuance	$ 0	$ 0