Fair Value Measurements - Schedule of Assets Measured at Fair Value on Recurring Basis (Details) - USD ($)	Sep. 30, 2023	Dec. 31, 2022
Liabilities:
Total liabilities measured at fair value	$ 0
Fair Value, Recurring
Current assets:
Cash equivalents	11,133,000
Short-term investments	2,947,000
Assets measured at fair value	14,080,000
Liabilities:
Total liabilities measured at fair value		$ 7,802,000
Fair Value, Recurring | Money Market Funds
Current assets:
Cash equivalents	7,153,000
Fair Value, Recurring | Commercial Paper
Current assets:
Cash equivalents	2,984,000
Short-term investments	2,457,000
Fair Value, Recurring | U.S. Treasury bills
Current assets:
Cash equivalents	996,000
Fair Value, Recurring | U.S. Government Sponsored Entities - Mortgagebacked Securities
Current assets:
Short-term investments	490,000
Fair Value, Recurring | Convertible promissory notes
Liabilities:
Total liabilities measured at fair value		5,157,000
Fair Value, Recurring | Preferred warrants liability
Liabilities:
Total liabilities measured at fair value		1,453,000
Fair Value, Recurring | Convertible Promissory Note Warrants Liability [Member]
Liabilities:
Total liabilities measured at fair value		1,192,000
Fair Value, Recurring | Level 1
Current assets:
Cash equivalents	7,153,000
Assets measured at fair value	7,153,000
Fair Value, Recurring | Level 1 | Money Market Funds
Current assets:
Cash equivalents	7,153,000
Fair Value, Recurring | Level 2
Current assets:
Cash equivalents	3,980,000
Short-term investments	2,947,000
Assets measured at fair value	6,927,000
Fair Value, Recurring | Level 2 | Commercial Paper
Current assets:
Cash equivalents	2,984,000
Short-term investments	2,457,000
Fair Value, Recurring | Level 2 | U.S. Treasury bills
Current assets:
Cash equivalents	996,000
Fair Value, Recurring | Level 2 | U.S. Government Sponsored Entities - Mortgagebacked Securities
Current assets:
Short-term investments	$ 490,000
Fair Value, Recurring | Level 3
Liabilities:
Total liabilities measured at fair value		7,802,000
Fair Value, Recurring | Level 3 | Convertible promissory notes
Liabilities:
Total liabilities measured at fair value		5,157,000
Fair Value, Recurring | Level 3 | Preferred warrants liability
Liabilities:
Total liabilities measured at fair value		1,453,000
Fair Value, Recurring | Level 3 | Convertible Promissory Note Warrants Liability [Member]
Liabilities:
Total liabilities measured at fair value		$ 1,192,000