CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
CURRENT ASSETS:
Cash and cash equivalents	$ 33,093	$ 37,645
Restricted cash	441	28
Accounts receivable, less allowance of $790 and $651 as of March 31, 2025 and December 31, 2024, respectively	5,330	5,956
Unbilled receivables	1,937	2,349
Inventory	4,639	5,832
Prepaid expenses and other current assets	2,963	1,900
Total current assets	48,403	53,710
Property and equipment, net	3,094	3,122
Other long term assets	1,880	2,069
Total assets	53,377	58,901
CURRENT LIABILITIES:
Accounts payable	2,305	1,607
Deferred grant funding	441	28
Deferred revenue	1,406	1,460
Accrued expenses and other current liabilities	3,773	5,573
Total current liabilities	7,979	8,729
Warrant liabilities	1,240	0
Long term deferred revenue	1,028	1,054
Other noncurrent liabilities	16	78
Total liabilities	10,263	9,861
COMMITMENTS AND CONTINGENCIES (NOTE 13)
STOCKHOLDERS' EQUITY:
Additional paid-in capital	346,966	343,475
Accumulated deficit	(303,860)	(294,442)
Total stockholders' equity	43,114	49,040
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	53,377	58,901
Class A Common Stock
STOCKHOLDERS' EQUITY:
Common stock	6	5
Class B Common Stock
STOCKHOLDERS' EQUITY:
Common stock	2	2
Related Party
CURRENT LIABILITIES:
Due to related parties	$ 54	$ 61