Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 17,599	$ 16,155
Accounts receivable and unbilled revenues, net	840	652
Inventory
Prepaid expenses and other current assets	760	891
Current assets of discontinued operations	364	922
Total current assets	19,563	18,620
Property and equipment, net	77	110
Operating lease right-of-use assets, net
Noncurrent assets of discontinued operations		284
Total assets	19,640	19,014
Current liabilities:
Accounts payable	212	400
Accrued payroll and employee benefits	1,115	855
Accrued expenses	142	309
Contract liabilities	25	2
Current portion of finance lease obligations	4	8
Current portion of operating lease obligations
Current liabilities of discontinued operations	142	258
Total current liabilities	1,640	1,832
Finance lease obligations, net of current portion		2
Noncurrent liabilities of discontinued operations		17
Total liabilities	1,640	1,851
Commitments and contingencies
Stockholders’ equity:
Common stock, 25,000,000 shares authorized, with par value of $0.001; 16,782,922 and 15,359,481 shares issued and outstanding at September 30, 2024 and December 31, 2023, respectively	17	15
Additional paid-in capital	240,955	235,158
Accumulated other comprehensive loss	(492)	(396)
Accumulated deficit	(222,480)	(217,614)
Total stockholders’ equity	18,000	17,163
Total liabilities and stockholders’ equity	$ 19,640	$ 19,014

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).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations, excluding pension and other postretirement benefits, incurred through that date and payable for perquisites provided to employees pertaining to services received from them. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).