CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current assets
Cash and equivalents	$ 93,342	$ 98,607
Short term investments	29,972	0
Accounts receivable, net of allowance for doubtful accounts of $558 in 2014 and $650 in 2013	22,074	28,528
Inventories	25,692	25,653
Prepaid expenses	2,576	2,719
Foreign sales tax receivable	418	543
Deferred income taxes	1,145	1,634
Other current assets	1,652	2,051
Assets of discontinued operations	1,896	1,910
Total current assets	178,767	161,645
Property and equipment:
Furniture and fixtures	5,394	5,221
Office equipment	11,152	10,407
Property and equipment, gross	16,546	15,628
Accumulated depreciation	(13,354)	(12,483)
Property and equipment, net	3,192	3,145
Goodwill, net of accumulated amortization	24,428	23,532
Intangible assets, net of accumulated amortization	15,293	16,733
Other assets, net of accumulated amortization	8,512	6,822
Total assets	230,192	211,877
Current liabilities
Accounts payable	10,360	6,378
Deferred revenue	17,048	15,703
Accrued wages and payroll taxes	8,274	7,067
Income taxes payable	2,498	4,087
Other accrued expenses	5,384	3,841
Liabilities of discontinued operations	1	30
Total current liabilities	43,565	37,106
Deferred compensation	175	115
Deferred revenue	60	57
Deferred income taxes	295	321
Total liabilities	44,095	37,599
Stockholders' equity
Common stock: $.001 par value per share, 75,000 shares authorized; 39,667 and 39,619 shares issued and outstanding at June 30, 2014 and December 31, 2013, respectively	40	40
Preferred stock: 500 shares authorized, none issued and outstanding at June 30, 2014 or December 31, 2013	0	0
Additional paid-in capital	81,131	79,871
Accumulated income	102,797	92,401
Accumulated other comprehensive income	2,129	1,966
Total stockholders' equity	186,097	174,278
Total liabilities and stockholders' equity	$ 230,192	$ 211,877