Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 20,399	$ 29,244
Marketable securities	4,973	0
Accounts receivable, net	13,220	5,547
Other current assets	3,729	2,046
Total current assets	42,321	36,837
Investments	5,180	6,355
Property and equipment, at cost less accumulated depreciation	12,006	10,371
Other long-term assets	3,725	4,585
Total assets	63,232	58,148
Current liabilities:
Accounts payable	2,011	2,763
Deferred revenue, current portion	1,094	2,263
Accrued payroll	1,888	2,145
Accrued expenses	525	404
Income tax payable	0	1,004
Other current liabilities	2,025	2,274
Total current liabilities	7,543	10,853
Deferred revenue, net of current portion	473	164
Deferred tax liability	472	549
Long-term lease obligation	1,981	2,708
Total noncurrent liabilities	2,926	3,421
Commitments and Contingencies
Stockholders’ equity:
Outstanding shares – 8,502,735 and 8,689,815 at December 31, 2022 and 2021, respectively	90	90
Additional paid-in capital	16,471	16,261
Treasury stock, 507,384 and 311,496 shares as of December 31, 2022 and 2021, respectively, at cost	(16,662)	(11,327)
Accumulated other comprehensive loss	(61)	(194)
Accumulated income	52,925	39,044
Total stockholders’ equity	52,763	43,874
Total liabilities and stockholders’ equity	$ 63,232	$ 58,148