Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 12,887	$ 20,432
Short-term investment securities	21,428	39,577
Accounts receivable, net of allowance for doubtful accounts of $119 and $121 at September 30, 2015 and December 31, 2014, respectively	20,643	23,874
Inventories, net	17,187	16,358
Deferred tax assets, net	2,279	2,281
Prepaid expenses and other assets	2,440	1,757
Total current assets	76,864	104,279
Property and equipment, net	14,042	14,842
Goodwill	3,493	161
Intangible assets, net	12,434	2,637
Deferred tax assets, net	10,348	9,710
Other noncurrent assets	36	40
TOTAL ASSETS	117,217	131,669
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	5,631	5,495
Accrued liabilities	6,430	10,211
Total current liabilities	12,061	15,706
Other long-term liabilities	930	448
Total liabilities	12,991	16,154
Stockholders' equity:
Common stock, $0.001 par value, 100,000,000 shares authorized, 17,815,573 and 18,571,419 shares issued and outstanding at September 30, 2015 and December 31, 2014, respectively	18	19
Additional paid-in capital	137,768	145,462
Accumulated deficit	(33,619)	(30,101)
Accumulated other comprehensive income	59	135
Total stockholders' equity	104,226	115,515
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 117,217	$ 131,669