CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 96,501	$ 63,380
Short-term investments	2,328	35,108
Accounts receivable, net of allowances of $1,600 in 2022 and $1,419 in 2021	65,132	56,612
Inventories, net	12,054	10,345
Prepaid expenses	6,222	7,594
Contract assets	4,520	4,694
Other current assets	10,783	9,356
Total current assets	197,540	187,089
Property and equipment, net	12,681	10,757
Operating lease right-of-use assets	8,022	9,197
Goodwill	90,514	96,174
Intangible assets, net of accumulated amortization	12,482	21,270
Deferred income taxes	1,901	3,786
Other assets	11,942	13,998
Total assets	335,082	342,271
Current liabilities
Accounts payable	17,357	8,204
Deferred revenue	64,637	54,617
Accrued wages and payroll taxes	18,345	16,607
Short-term income taxes payable	2,438	1,103
Other accrued expenses	7,664	7,668
Deferred compensation	373	877
Total current liabilities	110,814	89,076
Long-term deferred revenue	6,269	9,125
Long-term lease liabilities	8,442	10,180
Other long-term liabilities	2,484	7,770
Long-term income taxes payable	2,565	5,054
Deferred income taxes	1,197	1,286
Total liabilities	131,771	122,491
Stockholders' equity
Preferred stock: 500 shares authorized, none issued and outstanding at December 31, 2022 and 2021	0	0
Common stock: $.001 par value per share, 75,000 shares authorized; 40,764 and 40,593 shares issued; 39,726 and 40,001 shares outstanding at December 31, 2022 and 2021, respectively	40	40
Additional paid-in capital	107,305	100,250
Treasury stock, at cost, 1,038 and 592 shares outstanding at December 31, 2022 and 2021, respectively	(18,222)	(12,501)
Retained earnings	128,738	143,173
Accumulated other comprehensive loss	(14,550)	(11,182)
Total stockholders' equity	203,311	219,780
Total liabilities and stockholders' equity	$ 335,082	$ 342,271