Unaudited Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 26,881	$ 77,605
Prepaid expenses and other assets	7,256	2,866
Total current assets	34,137	80,471
Property and equipment, net	5,391	6,764
Right of use assets – operating leases	2,322	2,173
Deferred financing costs	208	146
Total assets	42,058	89,554
Current liabilities:
Accounts payable	1,728	3,933
Accrued expenses	4,542	7,662
Deferred revenue	682	1,413
Operating lease liabilities	1,386	1,391
Finance lease liabilities	1,074	544
Other current liabilities	1,146	965
Total current liabilities	10,558	15,908
Deferred revenue	41,250	45,000
Operating lease liabilities	761	860
Finance lease liabilities	96	328
Other long-term liabilities	519	926
Total liabilities	53,184	63,022
Commitments and contingencies (Note 6)
Stockholders’ (deficit) equity:
Preferred stock $0.001 par value, 5,000,000 shares authorized, none issued or outstanding	0	0
Common stock $0.001 par value, 350,000,000 shares authorized, 41,750,109 and 40,609,915 shares issued and outstanding at September 30, 2024 and December 31, 2023, respectively	41	40
Additional paid-in capital	276,777	271,594
Accumulated deficit	(287,944)	(245,102)
Total stockholders’ (deficit) equity	(11,126)	26,532
Total liabilities and stockholders’ (deficit) equity	$ 42,058	$ 89,554

Deferred Financing Costs, Noncurrent

No definition available.

Name:	carm_DeferredFinancingCostsNoncurrent
Namespace Prefix:	carm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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).