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Condensed Consolidated Balance Sheets (Unaudited) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Current assets:    
Cash and cash equivalents $ 20,429 $ 51,643
Investments, short-term 87,017 54,407
Accounts receivable, net 12,039 9,406
Inventory 1,314 1,390
Prepaid expenses and other current assets 1,989 1,671
Restricted cash   91
Total current assets 122,788 118,608
Investments, long-term   10,981
Property and equipment, net 6,207 4,653
Goodwill 862 862
Other assets 3,798 3,052
Total assets 133,655 138,156
Current liabilities:    
Accounts payable 2,076 2,103
Accrued liabilities 11,436 10,165
Deferred revenue 904 947
Accrued interest, current portion 149  
Debt, current portion 1,479  
Total current liabilities 16,044 13,215
Debt 32,053 32,227
Deferred rent, noncurrent portion 169 26
Accrued interest, net of current portion   126
Total liabilities 48,266 45,594
Commitments and contingencies (Note 7)
Stockholders’ equity:    
Preferred stock, $0.001 par value – 5,000,000 authorized at September 30, 2017 and December 31, 2016, respectively; and none issued and outstanding at September 30, 2017 and December 31, 2016, respectively
Common stock, $0.001 par value – 100,000,000 shares authorized at September 30, 2017 and December 31, 2016, respectively; 22,978,954 and 22,139,346 shares issued and outstanding at September 30, 2017 and December 31, 2016, respectively 28 22
Additional paid-in capital 230,831 219,718
Accumulated other comprehensive loss (30) (9)
Accumulated deficit (145,440) (127,169)
Total stockholders’ equity 85,389 92,562
Total liabilities and stockholders’ equity $ 133,655 $ 138,156