CONDENSED BALANCE SHEETS - USD ($)	Jun. 30, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 43,181,002	$ 46,822,786
Prepaids and other current assets	3,876,735	3,116,232
Total current assets	47,057,737	49,939,018
Fixed assets, net	5,614	11,227
Other assets	244,727
Total assets	47,308,078	49,950,245
Current liabilities:
Accounts payable	1,085,519	1,061,122
Accrued expenses	1,193,460	3,612,913
Deferred collaboration revenue	1,233,452	1,197,856
Total current liabilities	3,512,431	5,871,891
Deferred collaboration revenue	519,636	1,050,124
Total liabilities	4,032,067	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 June 30, 2026 or December 31, 2025
Common stock, $0.0001 par value; 200,000,000 shares authorized; 23,457,849 and 20,934,456 shares issued and outstanding as of June 30, 2026 or December 31, 2025, respectively	2,346	2,094
Additional paid-in capital	119,082,192	104,989,413
Accumulated deficit	(75,808,527)	(61,963,277)
Total stockholders' equity	43,276,011	43,028,230
Total liabilities and stockholders' equity	$ 47,308,078	$ 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).