Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Current assets:    
Cash and cash equivalents $ 29,215 $ 35,921
Short-term investments, available-for-sale 3,249 7,415
Prepaid expenses and other current assets 773 686
Total current assets 33,237 44,022
Property and equipment, net 63 94
Deposits 36 26
Goodwill 595 595
Total assets 33,931 44,737
Current liabilities:    
Accounts payable 2,055 701
Accrued liabilities 3,255 3,133
Notes payable - short term 1,963 0
Total current liabilities 7,273 3,834
Notes payable - long term 7,689 9,508
Other liabilities 123 1
Total liabilities 15,085 13,343
Stockholders' equity:    
Preferred stock - $0.00001 par value, 5,000,000 shares authorized and no shares issued or outstanding. 0 0
Common stock - $0.00001 par value, 100,000,000 shares authorized, 23,075,831 issued and outstanding at September 30, 2016 and 20,695,160 shares issued and outstanding at December 31, 2015. 0 0
Additional paid-in capital 172,022 162,832
Accumulated other comprehensive loss (1) (5)
Accumulated deficit (153,175) (131,433)
Total stockholders' equity 18,846 31,394
Total liabilities and stockholders' equity $ 33,931 $ 44,737