CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 79,518	$ 76,787
Short-term investments	19,763	19,496
Accounts receivable, net	88,908	92,028
Inventories, net	35,376	34,529
Prepaid expenses and other current assets	32,854	38,768
Total current assets	256,419	261,608
Non-current assets:
Property, plant and equipment, net	19,855	21,181
Operating lease right-of-use assets	11,075	12,231
Goodwill	108,359	109,534
Intangible assets, net	47,057	47,891
Service and sales demonstration inventory, net	20,655	23,147
Deferred income tax assets, net	24,933	25,027
Other long-term assets	3,951	4,073
Total assets	492,304	504,692
Current liabilities:
Accounts payable	25,314	27,404
Accrued liabilities	26,567	29,930
Income taxes payable	5,907	5,699
Current portion of unearned service revenues	41,012	40,555
Customer deposits	5,031	4,251
Lease liabilities	5,106	5,434
Total current liabilities	108,937	113,273
Loan - 5.50% Convertible Senior Notes	72,872	72,760
Unearned service revenues - less current portion	20,142	20,256
Lease liabilities - less current portion	9,690	10,837
Deferred income tax liabilities	12,543	13,308
Income taxes payable - less current portion	6,123	5,629
Other long-term liabilities	17	23
Total liabilities	230,324	236,086
Commitments and contingencies - See Note 12
Shareholders’ equity:
Common stock - par value $0.001, 50,000,000 shares authorized; 20,578,403 and 20,343,359 issued, respectively; 19,205,361 and 18,968,798 outstanding, respectively	20	20
Additional paid-in capital	350,816	346,277
Retained earnings	(17,056)	(9,789)
Accumulated other comprehensive loss	(41,145)	(37,247)
Common stock in treasury, at cost - 1,373,042 and 1,374,561 shares held, respectively	(30,655)	(30,655)
Total shareholders’ equity	261,980	268,606
Total liabilities and shareholders’ equity	$ 492,304	$ 504,692