Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 16,184	$ 20,432
Short-term investment securities	25,075	39,577
Accounts receivable, net of allowance for doubtful accounts of $108 and $121 at June 30, 2015 and December 31, 2014, respectively	21,667	23,874
Inventories, net	17,696	16,358
Deferred tax assets, net	2,149	2,281
Prepaid expenses and other assets	2,131	1,757
Total current assets	84,902	104,279
Property and equipment, net	14,628	14,842
Goodwill	4,123	161
Intangible assets, net	12,929	2,637
Deferred tax assets, net	9,710	9,710
Other noncurrent assets	36	40
TOTAL ASSETS	126,328	131,669
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	5,811	5,495
Accrued liabilities	6,961	10,211
Total current liabilities	12,772	15,706
Other long-term liabilities	1,426	448
Total liabilities	14,198	16,154
Stockholders' equity:
Common stock, $0.001 par value, 100,000,000 shares authorized, 18,555,427 and 18,571,419 shares issued and outstanding at June 30, 2015 and December 31, 2014, respectively	19	19
Additional paid-in capital	143,616	145,462
Accumulated deficit	(31,646)	(30,101)
Accumulated other comprehensive income	141	135
Total stockholders' equity	112,130	115,515
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 126,328	$ 131,669