CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($)	Mar. 31, 2026	Dec. 31, 2025
Current assets
Cash	$ 7,077,021	$ 5,110,630
Accounts receivable	4,274	8,126
Prepaid expenses and other current assets	663,320	801,947
Total current assets	7,744,615	5,920,703
Long-term assets
Property and equipment, net	657,635	700,115
Right of use assets, net	214,685	259,565
Deposits	12,850	12,850
Patent costs, net	929,586	873,182
Total assets	9,559,371	7,766,415
Current liabilities
Accounts payable and accrued expenses	122,970	97,442
Lease liability - current	199,854	237,607
Finance agreement payable	168,619	269,790
Total current liabilities	491,443	604,839
Long-term liabilities
Lease liability – long term	164,529	188,222
Total liabilities	655,972	793,061
Stockholders' equity
Preferred stock, $.00001 par value; authorized - 100,000,000 shares; 0 shares issued and outstanding as of March 31, 2026 and December 31, 2025, respectively
Common stock, $.00001 par value; authorized - 300,000,000 shares; 2,959,469 and 1,826,051 shares issued and outstanding as of March 31, 2026 and December 31, 2025, respectively	29	18
Additional paid-in capital	39,941,528	36,223,336
Accumulated deficit	(31,038,158)	(29,250,000)
Total stockholders' equity	8,903,399	6,973,354
Total liabilities and stockholders' equity	$ 9,559,371	$ 7,766,415

No definition available.

Name:	cdio_FinanceAgreementPayable
Namespace Prefix:	cdio_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.