CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net loss	$ (18,550)	$ (7,032)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation	1,650	1,346
Depreciation and amortization	856	748
Amortization of deferred costs	402	1,252
Non-cash operating lease expense	506	280
Changes in operating assets and liabilities:
Accounts receivable	(444)	(228)
Inventories	(3)	171
Deferred costs	(1,304)	(1,045)
Prepaid expenses and other current assets	915	7
Other assets	(9)	0
Accounts payable	(305)	(94)
Accrued and other current liabilities	3,903	75
Deferred revenue	761	(754)
Operating lease liabilities	(453)	(218)
Net cash used in operating activities	(12,075)	(5,492)
Cash flows from investing activities:
Purchase of property, plant and equipment	(2,868)	(194)
Net cash used in investing activities	(2,868)	(194)
Cash flows from financing activities:
Issuance of common stock in connection with a stock purchase agreement	10,507	0
Payment of financing costs in connection with a stock purchase agreement	(254)	0
Proceeds from exercise of stock options	3	8
Proceeds from exercise of stock warrants	1	0
Payment of transaction and issuance costs in connection with Business Combination and PIPE investment	0	(740)
Capital contributions from Amprius Holdings	0	505
Net cash provided by (used in) financing activities	10,257	(227)
Net decrease in cash, cash equivalents and restricted cash	(4,686)	(5,913)
Cash, cash equivalents and restricted cash, beginning of period	69,752	11,489
Cash, cash equivalents and restricted cash, end of period	65,066	5,576
Reconciliation of cash, cash equivalents and restricted cash shown on the condensed consolidated balance sheets:
Cash and cash equivalents	65,010	5,243
Restricted cash included in other assets	56	333
Total cash, cash equivalents and restricted cash	$ 65,066	$ 5,576