CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 163,637,000	$ 133,634,000
Short-term investments	0	24,870,000
Accounts receivable, net	47,533,000	76,162,000
Inventories, net	50,004,000	58,554,000
Prepaid expenses and other current assets	23,566,000	28,996,000
Total current assets	284,740,000	322,216,000
Non-current assets:
Property, plant and equipment, net	22,962,000	26,954,000
Operating lease right-of-use asset	15,060,000	18,418,000
Goodwill	55,640,000	49,704,000
Intangible assets, net	13,475,000	14,471,000
Service and sales demonstration inventory, net	33,181,000	33,349,000
Deferred income tax assets, net	23,833,000	18,766,000
Other long-term assets	2,835,000	2,964,000
Total assets	451,726,000	486,842,000
Current liabilities:
Accounts payable	9,096,000	13,718,000
Accrued liabilities	37,622,000	38,072,000
Income taxes payable	211,000	5,182,000
Lease liability	5,089,000	6,674,000
Total current liabilities	93,453,000	105,965,000
Unearned service revenues - less current portion	19,354,000	20,578,000
Lease liability - less current portion	11,781,000	13,698,000
Deferred income tax liabilities	734,000	357,000
Income taxes payable - less current portion	12,058,000	13,177,000
Other long-term liabilities	1,016,000	1,075,000
Total liabilities	138,396,000	154,850,000
Commitments and contingencies - See Note 13
Shareholders’ equity:
Common Stock, Value, Issued	19,000	19,000
Additional paid-in capital	276,779,000	267,868,000
Retained earnings	86,100,000	112,879,000
Accumulated other comprehensive loss	(18,526,000)	(17,399,000)
Treasury Stock, Value	(31,042,000)	(31,375,000)
Total shareholders’ equity	313,330,000	331,992,000
Total liabilities and shareholders’ equity	451,726,000	486,842,000
Current portion of unearned service revenues
Current liabilities:
Current portion of unearned service revenues	37,523,000	39,211,000
Customer deposits	37,523,000	39,211,000
Customer deposits
Current liabilities:
Current portion of unearned service revenues	3,912,000	3,108,000
Customer deposits	$ 3,912,000	$ 3,108,000