XML 21 R6.htm IDEA: XBRL DOCUMENT v3.8.0.1
Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Cash flows from operating activities:      
Net loss $ (26,892) $ (33,338) $ (27,212)
Adjustments to reconcile net loss to net cash used in operating activities:      
Share-based compensation expense 14,615 11,697 8,997
Depreciation 7,761 7,655 4,975
Amortization of intangible assets 1,367 1,644 1,303
Amortization of deferred financing costs 264 218 61
Loss on disposal of property and equipment and impairment of assets 336 433 276
Realized gain (loss) from foreign exchange on intercompany transactions (173) 407 434
Amortization/accretion on investments 30 126 577
Change in allowance for doubtful accounts (172) 149 144
Change in fair value of contingent consideration (4,078) 969  
Changes in operating assets and liabilities, net of amounts acquired:      
Accounts receivable (1,464) (1,982) (900)
Inventories (4,477) (79) (2,950)
Other current assets 829 122 (928)
Accounts payable 1,290 (1,072) 4,013
Accrued liabilities 2,228 (1,915) 3,070
Other noncurrent assets and liabilities (408) (153) 298
Net cash used in operating activities (8,944) (15,119) (7,842)
Cash flows from investing activities:      
Purchases of available-for-sale securities (16,455) (28,592) (19,525)
Sales and maturities of available-for-sale securities 26,600 24,202 40,602
Purchases of property and equipment (6,384) (7,692) (13,445)
Proceeds from sale of property and equipment   3  
Increases in property under build-to-suit obligation     (10,552)
Cash paid for nContact business combination     (7,581)
Net cash provided by (used in) investing activities 3,761 (12,079) (10,501)
Cash flows from financing activities:      
Proceeds from debt borrowings   25,000  
Payment on debt and capital leases (1,689) (439) (263)
Proceeds from build-to-suit obligation     10,552
Proceeds from economic incentive loan     340
Payment of debt fees (50) (120) (62)
Proceeds from stock option exercises 4,402 3,337 2,703
Shares repurchased for payment of taxes on stock awards (2,013) (1,701) (782)
Proceeds from issuance of common stock under employee stock purchase plan 2,110 1,618 1,539
Payment of stock issuance fees     (66)
Net cash provided by financing activities 2,760 27,695 13,961
Effect of exchange rate changes on cash and cash equivalents 24 (53) (238)
Net (decrease) increase in cash and cash equivalents (2,399) 444 (4,620)
Cash and cash equivalents-beginning of period 24,208 23,764 28,384
Cash and cash equivalents-end of period 21,809 24,208 23,764
Supplemental cash flow information:      
Cash paid for interest 2,002 1,506 232
Cash paid for income taxes 37 30 20
Non-cash investing and financing activities:      
Accrued purchases of property and equipment 650 340 1,277
Assets acquired through capital lease $ 2 152 50
Capital lease asset early termination   $ 37  
Stock issuance in business combinations     69,054
Contingent consideration in business combinations     $ 40,207