Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 237,366	$ 87,974
Marketable securities	220,094	97,511
Prepaid expenses and other current assets	6,538	7,066
Total current assets	463,998	192,551
Property and equipment, net	596	609
Operating right-of-use assets	901	1,092
Other non-current assets	2,286	531
Total assets	467,781	194,783
Current liabilities:
Accounts payable	6,232	5,734
Accrued expenses and other current liabilities	6,252	4,296
Operating lease liabilities	460	647
Total current liabilities	12,944	10,677
Operating lease liabilities, net of current portion	566	573
Total liabilities	13,510	11,250
Commitments and contingencies (Note 8)
Convertible preference shares and convertible preferred stock:
Preferred Stock Value
Stockholders' deficit:
Additional Paid in Capital	685,709	4,916
Accumulated other comprehensive (loss) income	(2,748)	175
Accumulated deficit	(228,695)	(181,858)
Total stockholders' equity (deficit)	454,271	(176,635)
Total liabilities, convertible preference shares, convertible preferred stock and stockholders' equity (deficit)	467,781	194,783
Series Seed Convertible Preference Shares And Convertible Preferred Stock [Member]
Convertible preference shares and convertible preferred stock:
Preferred Stock Value		5,236
Series A Convertible Preference Shares And Convertible Preferred Stock [Member]
Convertible preference shares and convertible preferred stock:
Preferred Stock Value		63,536
Series B Convertible Preference Shares And Convertible Preferred Stock [Member]
Convertible preference shares and convertible preferred stock:
Preferred Stock Value		134,975
Series C Convertible Preference Shares And Convertible Preferred Stock [Member]
Convertible preference shares and convertible preferred stock:
Preferred Stock Value		156,421
Ordinary Shares [Member]
Stockholders' deficit:
Stockholders' deficit:	0	132
Common Stock [Member]
Stockholders' deficit:
Stockholders' deficit:	$ 5	$ 0

No definition available.

Name:	coag_ConvertiblePreferredStockAndConvertiblePreferenceSharesAbstract
Namespace Prefix:	coag_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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).