Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 20,284	$ 21,670
Trade accounts receivable, net of allowance for credit losses of $298 and $277 as of March 31, 2024 and December 31, 2023, respectively	6,515	6,392
Inventory, net	750	917
Prepaid expenses and other current assets	1,495	699
Total current assets	29,044	29,678
Property and equipment, net of accumulated depreciation of $1,136 and $1,045 as of March 31, 2024 and December 31, 2023, respectively	1,938	1,823
Operating lease assets	522	461
Other assets	299	849
Intangible assets, net of accumulated amortization of $8,500 and $8,488 as of March 31, 2024 and December 31, 2023, respectively	136	148
Goodwill	8,362	8,362
Deferred tax assets	94	97
Total assets	40,395	41,418
Current liabilities:
Accounts payable	635	712
Accrued and other expenses	1,755	2,448
Less: current portion of lease liabilities	216	188
Deferred revenue—current portion	3,554	3,400
Total current liabilities	6,160	6,748
Long-term lease liabilities	306	273
Deferred revenue, net of current	1,462	974
Deferred tax	7	6
Total liabilities	7,935	8,001
Commitments and Contingencies (Notes 9 and 12)
Stockholders’ equity:
Preferred stock, $0.01 par value: authorized 1,000,000 shares; none issued.	0	0
Common stock, $0.01 par value: authorized 60,000,000 shares; issued 26,540,030 as of both March 31, 2024 and December 31, 2023, respectively; outstanding 26,354,199 as of both March 31, 2024 and December 31, 2023, respectively.	265	265
Additional paid-in capital	306,515	306,250
Accumulated deficit	(272,905)	(271,683)
Treasury stock at cost, 185,831 shares as of both March 31, 2024 and December 31, 2023	(1,415)	(1,415)
Total stockholders’ equity	32,460	33,417
Total liabilities and stockholders’ equity	$ 40,395	$ 41,418