Consolidated Balance Sheets (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 17,097	$ 17,856
Short-term investments	44,884	54,694
Accounts receivable, net of allowances for doubtful accounts and other adjustments of $755 (2011) and $855 (2010)	12,071	29,812
Income tax receivable	3,048	2,872
Inventories, net of reserves for excess and obsolete inventory of $511 (2011) and $558 (2010)	326	370
Prepaid expenses and other current assets	1,956	1,167
Deferred tax asset	1,998	2,565
Total current assets	81,380	109,336
Equipment and improvements, net	21,100	11,623
Goodwill	94,231	94,231
Intangible assets, net	15,400	19,459
Other assets	240	243
Deferred tax asset	11,180	0
Total assets	223,531	234,892
Current liabilities:
Accounts payable	4,192	4,592
Accrued liabilities	7,536	8,444
Deferred revenue	454	1,667
Total current liabilities	12,182	14,703
Non-current liabilities:
Long-term liabilities	2,727	197
Deferred tax liability	1,727	1,727
Total non-current liabilities	4,454	1,924
Commitments and contingencies
Stockholders' equity:
Preferred stock, par value $0.001 per share; 5,000,000 shares authorized; none issued or outstanding	0	0
Common stock, par value $0.001 per share; 50,000,000 shares authorized; 35,716,164 and 34,971,108 shares issued and outstanding at June 30, 2011 and December 31, 2010, respectively	36	35
Additional paid-in capital	205,932	201,702
Accumulated other comprehensive loss	(11)	(10)
Accumulated earnings	938	16,538
Total stockholders' equity	206,895	218,265
Total liabilities and stockholders' equity	$ 223,531	$ 234,892