CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 25,617	$ 43,893
Prepaid expenses and other current assets	3,099	2,960
Total current assets	28,716	46,853
Property and equipment, net	1,782	2,276
Right-of-use asset, operating leases	6,301	6,890
Restricted cash and restricted cash equivalents	5,647	5,647
Other noncurrent assets	4,611	108
Total assets	47,057	61,774
Current liabilities:
Accounts payable	3,468	1,435
Accrued expenses and other current liabilities	9,763	9,497
Venture debt, current portion	878	0
Convertible notes	0	32,402
Deferred revenue, current portion	0	14,531
Total current liabilities	14,109	57,865
Deferred revenue, net of current portion	0	11,318
Lease liability, net of current portion	6,248	6,786
Venture debt, net of current portion	4,581	5,072
Convertible notes	38,595	0
Other noncurrent liabilities	55,000	0
Total liabilities	118,533	81,041
Commitments and contingencies (Note 7)
Preferred Stock	111,445	111,445
Stockholders' deficit:
Common stock, $0.0001 par value; 225,000,000 and 141,900,000 shares authorized, 7,472,835 and 7,139,216 shares issued and outstanding at December 31, 2023 and 2022, respectively	1	1
Additional paid-in capital	4,159	2,625
Accumulated deficit	(187,081)	(133,338)
Total stockholders' deficit	(182,921)	(130,712)
Total liabilities, convertible preferred stock and stockholders' deficit	47,057	61,774
Series A convertible preferred stock [Member]
Current liabilities:
Preferred Stock	47,458	47,458
Series A-1 convertible preferred stock [Member]
Current liabilities:
Preferred Stock	4,132	4,132
Series B convertible preferred stock [Member]
Current liabilities:
Preferred Stock	$ 59,855	$ 59,855

Accrued expenses and other current liabilities.

No definition available.

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Namespace Prefix:	fixx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).