Condensed Consolidated Balance Sheets - USD ($)	Mar. 31, 2026	Dec. 31, 2025
Current Assets:
Cash	$ 302,660	$ 101,778
Prepaid expenses and other current assets	439,563	347,189
Vendor deposits		14,484
Total Current Assets	742,223	463,451
Total Assets	742,223	463,451
Current Liabilities:
Accounts payable	10,235,276	10,123,391
Accrued expenses and other current liabilities	3,303,242	2,726,846
Convertible notes payable at fair value	1,200,000
Warrant liabilities	128,000
Total Current Liabilities	14,866,518	12,850,237
Total Liabilities	14,866,518	12,850,237
Commitments and contingencies (Note 7)
Stockholders’ Deficit:
Common stock	809	809
Additional paid-in-capital	125,260,381	125,204,509
Accumulated deficit	(139,378,318)	(137,584,937)
Treasury stock, at cost, 7 shares at March 31, 2026 and December 31, 2025	(7,168)	(7,168)
Total Stockholders’ Deficit	(14,124,295)	(12,386,786)
Total Liabilities and Stockholders’ Deficit	742,223	463,451
Series A Preferred Stock [Member]
Stockholders’ Deficit:
Preferred stock
Series B Preferred Stock [Member]
Stockholders’ Deficit:
Preferred stock	$ 1	$ 1

Warrant liability.

No definition available.

Name:	ZVSA_WarrantLiability
Namespace Prefix:	ZVSA_
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).