CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets
Cash and equivalents	$ 69,907	$ 76,708
Short term investments	25,363	22,789
Accounts receivable, net of allowances of $1,339 in 2019 and $1,152 in 2018	59,084	59,631
Inventories, net	15,241	14,428
Prepaid expenses	5,720	4,733
Contract assets	4,672	7,962
Other current assets	6,731	5,705
Total current assets	186,718	191,956
Property and equipment:
Furniture and fixtures	7,688	7,613
Office equipment	11,077	11,059
Total Property and equipment:	18,765	18,672
Accumulated depreciation	(12,886)	(12,422)
Property and equipment, net	5,879	6,250
Operating lease right-of-use assets	8,768
Goodwill	92,730	91,841
Intangible assets, net of accumulated amortization	43,436	45,462
Deferred income taxes	5,581	5,601
Contract assets - non-current	4,027	3,316
Other assets	8,340	8,400
Total assets	355,479	352,826
Current liabilities
Accounts payable	14,957	7,202
Deferred revenue	33,356	33,633
Accrued wages and payroll taxes	10,443	13,932
Short-term income taxes payable	3,429	6,905
Other accrued expenses	9,931	9,323
Deferred compensation	1,235	1,362
Total current liabilities	73,351	72,357
Long-term deferred revenue	10,428	10,672
Lease liability long term	7,852
Other long-term liabilities	5,605	7,075
Long-term income taxes payable	7,617	7,620
Deferred income taxes	2,668	2,661
Total liabilities	107,521	100,385
Stockholders' equity
Common stock: $.001 par value per share, 75,000 shares authorized; 40,215 and 40,225 issued and outstanding at March 31, 2019 and December 31, 2018, respectively	40	40
Additional paid-in capital	93,644	93,310
Accumulated income	166,707	172,378
Accumulated other comprehensive loss	(12,433)	(13,287)
Total stockholders' equity	247,958	252,441
Total liabilities and stockholders' equity	$ 355,479	$ 352,826