v2.4.0.8
Condensed Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Cash flows from operating activities    
Net loss $ (17,645) $ (12,641)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:    
Depreciation and amortization 2,646 1,942
Stock-based compensation expense 3,239 1,068
Change in the fair value of the Series D redeemable convertible preferred stock warrant prior to conversion 695 (13)
Changes in operating assets and liabilities:    
Accounts receivable, net 1,180 (924)
Advances to clients (569)  
Prepaid expenses (1,010) (1,020)
Other assets 662 19
Accounts payable (773) (35)
Accrued expenses and other current liabilities 1,921 2,417
Deferred revenue 11,130 7,835
Refunds payable 196 173
Rebate reserve (5) 44
Other liabilities (25) 19
Net cash (used in) provided by operating activities 1,642 (1,116)
Cash flows from investing activities    
Expenditures for property and equipment (1,720) (1,668)
Capitalized content development cost expenditures (3,476) (2,045)
Other investing activities (21)  
Net cash used in investing activities (5,217) (3,713)
Cash flows from financing activities    
Proceeds from issuance of common stock, net of offering costs 100,302  
Proceeds from exercise of stock options 1,023 69
Repurchase of common shares   (149)
Proceeds from issuance of Series D redeemable convertible preferred stock, net of issuance costs   4,994
Net cash provided by financing activities 101,325 4,914
Net increase in cash and cash equivalents 97,750 85
Cash and cash equivalents, beginning of period 7,012 25,190
Cash and cash equivalents, end of period 104,762 25,275
Supplemental disclosure of non-cash investing and financing activities    
Accretion of issuance costs on redeemable convertible preferred stock 89 174
Accrued capital expenditures 278 242
Deferred offering costs included in accounts payable and accrued expenses 144  
Common stock granted in exchange for consulting services received $ 55