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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands
9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Cash flows from operating activities:  
Net income$ 6,251$ 4,220
Adjustments to reconcile net income to net cash provided by operating activities:  
Depreciation and amortization5,8206,493
Loss on disposal of fixed assets 147
Gain on legal settlement (2,439)
Provision for (recovery of) receivable allowance(527)(674)
Share-based compensation expense7,2546,452
Income tax benefits from employee stock plans3,2082,365
Excess tax benefits from employee stock plans(3,553)(4,473)
Provision for excess and obsolete inventories564646
Foreign currency remeasurement loss1406
Deferred income taxes(270)1,577
Changes in operating assets and liabilities:  
Accounts receivable, net(3,286)(4,139)
Inventories(7,835)511
Prepaid expenses1,316(2,419)
Other current assets(953)320
Net investment in sales-type leases9171,007
Other assets759744
Accounts payable1,1803,312
Accrued compensation(669)(1,513)
Accrued liabilities308(1,714)
Deferred service revenue3,2241,016
Deferred gross profit442(1,168)
Other long-term liabilities339291
Net cash provided by operating activities14,62910,568
Cash flows from investing activities:  
Purchases of short-term investments(8,097) 
Maturities of short-term investments8,143 
Acquisition of intangible assets and intellectual property(136)(168)
Software development for external use(3,523)(1,612)
Purchases of property and equipment(6,808)(4,755)
Business acquisition, net of cash acquired (5,703)
Net cash used in investing activities(10,421)(12,238)
Cash flows from financing activities:  
Proceeds from issuance of common stock under employee stock purchase and stock option plans6,6076,598
Stock repurchases(10,560) 
Excess tax benefits from employee stock plans3,5534,473
Net cash (used in) provided by financing activities(400)11,071
Effect of exchange rate changes on cash and cash equivalents(140)(6)
Net increase in cash and cash equivalents3,6689,395
Cash and cash equivalents at beginning of period175,635169,230
Cash and cash equivalents at end of period179,303178,625
Supplemental disclosure of non-cash operating activity:  
Satisfaction of acquired legal contingency with indemnification asset (Note 2)$ (1,200)