Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Cash flows from operating activities:
Net loss	$ (7,964,158)	$ (4,894,034)
Adjustments to reconcile net loss to net cash used in operating activities:
Accretion of discount on marketable securities, net	(70,104)	(251,828)
Stock-based compensation expense	349,196	361,167
Changes in operating assets and liabilities:
Prepaid expenses and other assets	(428,336)	201,613
Accounts payable	765,364	349,158
Accrued expenses and other current liabilities	(1,097,293)	(285,439)
Grant receivable	426,993	625,004
Net cash used in operating activities	(8,018,338)	(3,894,359)
Cash flows from investing activities:
Purchase of marketable securities	(989,180)	(7,103,423)
Maturities of marketable securities	8,700,000	12,500,000
Net cash provided by investing activities	7,710,820	5,396,577
Cash flows from financing activities:
Proceeds from the exercise of stock options	13,800	0
Net cash provided by financing activities	13,800	0
Net (decrease) increase in cash and cash equivalents	(293,718)	1,502,218
Cash and cash equivalents at beginning of period	8,235,469	8,999,496
Cash and cash equivalents at end of period	7,941,751	10,501,714
Supplemental disclosure of non-cash investing and financing activities:
Deferred offering costs in accrued expenses	120,000	0
Deferred offering costs in accounts payable	53,015	0
Unrealized loss on marketable securities	$ (6,024)	$ (34,974)

The amount of debt offering costs that were incurred during a noncash or partial noncash transaction.

No definition available.

Name:	crvo_DebtOfferingCostsIncurredDuringNoncashOrPartialNoncashTransaction
Namespace Prefix:	crvo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.