Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents		$ 7,981	$ 13,922	[1]
Accounts receivable		6,109	6,229	[1],[2]
Receivable from related party		2,005	3,539	[1]
Inventories		10,118	10,608	[1]
Prepaid expenses and other current assets		1,129	1,468	[1]
Total current assets		27,342	35,766	[1]
Property and equipment, net		524	462	[1]
Intangible assets, net		1,726	1,977	[1]
Goodwill		965	965	[1]
Operating lease right-of-use assets, net		2,789	1,665	[1]
Other long-term assets		1,603	1,455	[1]
Total assets		34,949	42,290	[1]
Current liabilities:
Accounts payable		2,610	3,858	[1]
Payable to related party	[1]	3	15
Accrued compensation		2,197	2,448	[1]
Accrued expenses		1,171	1,548	[1]
Other current liabilities		886	968	[1]
Accrued warranty		247	168	[1]
Deferred revenue		2,239	2,411	[1]
Current portion of lease liabilities		995	1,037	[1]
Total current liabilities		10,348	12,453	[1]
Long-term liabilities:
Accrued warranty		138	106	[1]
Deferred revenue		10,472	11,742	[1]
Operating lease liabilities		1,901	732	[1]
Other long-term liabilities		26	26	[1]
Total liabilities		22,885	25,059	[1]
Commitments and contingencies (Note 8)
Stockholders’ equity:
Preferred stock, $0.01 par value, 2,000,000 shares authorized, no shares issued and outstanding		0	0	[1]
Common stock, $0.01 par value:Authorized: 30,000,000 shares;Issued and outstanding 16,232,473 and 15,989,662 shares as of September 30, 2023 and December 31, 2022, respectively		172	169	[1]
Additional paid-in capital		87,993	86,802	[1]
Accumulated other comprehensive loss		(19)	(24)	[1]
Accumulated deficit		(76,082)	(69,716)	[1]
Total stockholders’ equity		12,064	17,231	[1]
Total liabilities and stockholders’ equity		$ 34,949	$ 42,290	[1]

[1] Derived from the audited consolidated financial statements included in the Annual Report on Form 10-K filed with the SEC for the year ended December 31, 2022.

[2] Prior to our adoption of Accounting Standard Update 2016-13, “Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” on January 1, 2023, the provision for credit losses related to accounts receivable was not applicable and is therefore presented as $0 at December 31, 2022. See Note 3 for additional details.