Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 33,975	$ 24,690
Accounts receivable	1,978	1,978
Short-term marketable securities	9,457	51,148
Prepaid expenses and other current assets	2,947	3,489
Total current assets	48,357	81,305
Property and equipment, net	2,483	3,630
Operating lease right-of-use assets	2,331	3,268
Restricted cash	426	405
Other assets	376	827
Total assets	53,973	89,435
Current liabilities:
Accounts payable	287	658
Accrued and other liabilities	3,953	6,848
Lease liabilities, current portion	2,432	2,226
Total current liabilities	6,672	9,732
Lease liabilities, noncurrent portion	1,527	3,376
Warrant liabilities	243	326
Total liabilities	8,442	13,434
Commitments and contingencies (Note 8)
Stockholders’ equity:
Preferred stock, $0.0001 par value, 10,000 shares authorized; no shares issued and outstanding as of September 30, 2023 and December 31, 2022	0	0
Common stock, $0.0001 par value, 500,000 shares authorized as of September 30, 2023 and December 31, 2022; 30,575 and 30,088 share issued and outstanding as of September 30, 2023 and December 31, 2022, respectively	3	3
Additional paid-in-capital	258,309	254,892
Accumulated other comprehensive income (loss)	1	(241)
Accumulated deficit	(212,782)	(178,653)
Total stockholders' equity	45,531	76,001
Total liabilities and stockholders’ equity	$ 53,973	$ 89,435

Warrant liability.

No definition available.

Name:	srzn_WarrantLiability
Namespace Prefix:	srzn_
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).