CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Current assets:    
Cash and cash equivalents $ 25,671 $ 29,530
Restricted cash 259 296
Short-term investments 21,293 37,761
Accounts receivable, net 24,667 21,322
Inventories 31,714 19,855
Prepaid expenses and other current assets 3,166 3,842
Total current assets 106,770 112,606
Property and equipment, net 6,355 6,584
Long-term investments 5,008 13,716
Intangible assets, net 24,498 4,547
Goodwill 17,016 2,760
Other assets 2,110 1,650
Total assets 161,757 141,863
Current liabilities:    
Accounts payable 20,028 17,588
Accrued liabilities 7,407 5,880
Deferred revenue 1,378 1,099
Current portion of notes payable 298 727
Total current liabilities 29,111 25,294
Revolving credit line 1,500  
Notes payable 34 186
Other long-term liabilities 805 938
Total liabilities 31,450 26,418
Commitments and contingencies (Note 11)
Stockholders' equity:    
Common stock, $0.0001 par value; 500,000,000 shares authorized; 25,221,246 and 24,590,768 shares issued; 23,639,120 and 23,436,288 shares outstanding at September 30, 2016 and December 31, 2015, respectively 3 2
Treasury stock, at cost; 1,582,126 and 1,154,480 shares at September 30, 2016 and December 31, 2015, respectively (12,262) (9,020)
Additional paid-in capital 229,688 220,782
Accumulated deficit (86,640) (95,580)
Accumulated other comprehensive loss (482) (739)
Total stockholders' equity 130,307 115,445
Total liabilities and stockholders' equity $ 161,757 $ 141,863