CONDENSED BALANCE SHEETS - USD ($)	Mar. 31, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 50,724,643	$ 46,822,786
Prepaids and other current assets	2,538,036	3,116,232
Total current assets	53,262,679	49,939,018
Fixed assets, net	8,420	11,227
Total assets	53,271,099	49,950,245
Current liabilities:
Accounts payable	948,192	1,061,122
Accrued expenses	1,355,714	3,612,913
Deferred collaboration revenue	1,242,635	1,197,856
Total current liabilities	3,546,541	5,871,891
Deferred collaboration revenue	754,198	1,050,124
Total liabilities	4,300,739	6,922,015
Commitments and contingencies (Note 6)
Stockholders' equity:
Series A convertible preferred stock, $0.0001 par value: 10,000,000 shares authorized, none issued or outstanding as of March 31, 2026 or December 31, 2025
Common stock, $0.0001 par value; 200,000,000 shares authorized; 23,457,183 and 20,934,456 shares issued and outstanding as of March 31, 2026 or December 31, 2025, respectively	2,346	2,094
Additional paid-in capital	118,138,281	104,989,413
Accumulated deficit	(69,170,267)	(61,963,277)
Total stockholders' equity	48,970,360	43,028,230
Total liabilities and stockholders' equity	$ 53,271,099	$ 49,950,245

Deferred collaboration revenue.

No definition available.

Name:	coya_DeferredCollaborationRevenue
Namespace Prefix:	coya_
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).