Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 24,056	$ 26,918
Marketable securities	5,305	5,230
Accounts receivable, net	8,189	7,536
Other current assets	5,173	4,805
Total current assets	42,723	44,489
Investments	3,823	4,062
Property and equipment, at cost less accumulated depreciation	11,688	11,319
Other long-term assets	3,857	3,956
Total assets	62,091	63,826
Current liabilities:
Accounts payable	1,925	1,557
Deferred revenue, current portion	1,635	2,310
Accrued payroll	1,556	2,172
Accrued expenses	1,167	971
Other current liabilities	2,778	2,530
Total current liabilities	9,061	9,540
Deferred revenue, net of current portion	186	265
Long-term lease obligation	899	1,121
Other current liabilities	295	196
Total noncurrent liabilities	1,380	1,582
Commitments and Contingencies
Stockholders’ equity:
Outstanding shares – 8,160,758 and 8,295,408 at March 31, 2024 and December 31, 2023, respectively	90	90
Additional paid-in capital	16,781	16,621
Treasury stock, 855,382 and 720,732 shares at March 31, 2024 and December 31, 2023, respectively, at cost	(22,006)	(20,359)
Accumulated other comprehensive income	35	32
Accumulated income	56,750	56,320
Total stockholders’ equity	51,650	52,704
Total liabilities and stockholders’ equity	$ 62,091	$ 63,826