Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 22,498	$ 26,918
Marketable securities	5,511	5,230
Accounts receivable, net	7,320	7,536
Other current assets	6,522	4,805
Total current assets	41,851	44,489
Investments	3,632	4,062
Property and equipment, at cost less accumulated depreciation	11,954	11,319
Other long-term assets	5,371	3,956
Total assets	62,808	63,826
Current liabilities:
Accounts payable	1,628	1,557
Deferred revenue, current portion	1,264	2,310
Accrued payroll	2,459	2,172
Accrued expenses	1,050	971
Other current liabilities	2,143	2,530
Total current liabilities	8,544	9,540
Commitments and Contingencies
Noncurrent liabilities:
Deferred revenue, net of current portion	161	265
Other long-term liabilities	372	196
Common stock, $0.01 par value: Authorized shares - 20,000,000; Issued shares – 9,026,940 and 9,016,140 at September 30, 2024 and December 31, 2023, respectively; Outstanding shares – 7,901,148 and 8,295,408 at September 30, 2024 and December 31, 2023, respectively	91	90
Additional paid-in capital	17,479	16,621
Treasury stock, 1,125,792 and 720,732 shares at September 30, 2024 and December 31, 2023, respectively, at cost	(25,825)	(20,359)
Accumulated other comprehensive income (loss)	100	32
Accumulated income	59,842	56,320
Total stockholders’ equity	51,687	52,704
Total liabilities and stockholders’ equity	62,808	63,826
Long-term lease obligation	2,044	1,121
Total noncurrent liabilities	2,577	1,582
Other long-term liabilities	372	196
Common stock, $0.01 par value: Authorized shares - 20,000,000; Issued shares – 9,026,940 and 9,016,140 at September 30, 2024 and December 31, 2023, respectively; Outstanding shares – 7,901,148 and 8,295,408 at September 30, 2024 and December 31, 2023, respectively	91	90
Additional paid-in capital	17,479	16,621
Treasury stock, 1,125,792 and 720,732 shares at September 30, 2024 and December 31, 2023, respectively, at cost	(25,825)	(20,359)
Accumulated other comprehensive income (loss)	100	32
Accumulated income	59,842	56,320
Total stockholders’ equity	51,687	52,704
Total liabilities and stockholders’ equity	$ 62,808	$ 63,826