Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Current assets:    
Cash and cash equivalents $ 17,174 $ 20,294
Accounts receivable, net of allowance for doubtful accounts of $209 and $241, respectively 10,748 9,746
Prepaid Expense, Current 1,419 2,762
Other current assets 324 342
Total current assets 29,665 33,144
Property and equipment, net 2,311 4,009
Other assets 708 690
Total assets 32,684 37,843
Current liabilities:    
Accounts payable 5,901 6,291
Accrued liabilities 3,858 5,356
Deferred revenue, short-term 2,436 2,321
Total current liabilities 12,195 13,968
Deferred revenue, long-term 127 231
Other long-term liabilities 1,105 1,043
Total liabilities 13,427 15,242
Stockholders’ equity:    
Common stock 68 65
Additional paid-in capital 223,082 219,981
Accumulated deficit (203,893) (197,445)
Total stockholders’ equity 19,257 22,601
Total liabilities and stockholders’ equity $ 32,684 $ 37,843