| Year Ended December 31, |
| 2014 | | 2013 | | 2012 |
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD | $ | 8,658 | | | $ | 8,084 | | | $ | 5,269 | |
OPERATING ACTIVITIES: | | | | | |
Net income (loss) | (241 | ) | | 274 | | | (39 | ) |
Adjustments to reconcile net income (loss) to net cash fromoperating activities: | | | | | |
Depreciation of property and equipment, including internal-usesoftware and website development, and other amortization | 4,746 | | | 3,253 | | | 2,159 | |
Stock-based compensation | 1,497 | | | 1,134 | | | 833 | |
Other operating expense (income), net | 129 | | | 114 | | | 154 | |
Losses (gains) on sales of marketable securities, net | (3 | ) | | 1 | | | (9 | ) |
Other expense (income), net | 62 | | | 166 | | | 253 | |
Deferred income taxes | (316 | ) | | (156 | ) | | (265 | ) |
Excess tax benefits from stock-based compensation | (6 | ) | | (78 | ) | | (429 | ) |
Changes in operating assets and liabilities: | | | | | |
Inventories | (1,193 | ) | | (1,410 | ) | | (999 | ) |
Accounts receivable, net and other | (1,039 | ) | | (846 | ) | | (861 | ) |
Accounts payable | 1,759 | | | 1,888 | | | 2,070 | |
Accrued expenses and other | 706 | | | 736 | | | 1,038 | |
Additions to unearned revenue | 4,433 | | | 2,691 | | | 1,796 | |
Amortization of previously unearned revenue | (3,692 | ) | | (2,292 | ) | | (1,521 | ) |
Net cash provided by (used in) operating activities | 6,842 | | | 5,475 | | | 4,180 | |
INVESTING ACTIVITIES: | | | | | |
Purchases of property and equipment, including internal-usesoftware and website development | (4,893 | ) | | (3,444 | ) | | (3,785 | ) |
Acquisitions, net of cash acquired, and other | (979 | ) | | (312 | ) | | (745 | ) |
Sales and maturities of marketable securities and otherinvestments | 3,349 | | | 2,306 | | | 4,237 | |
Purchases of marketable securities and other investments | (2,542 | ) | | (2,826 | ) | | (3,302 | ) |
Net cash provided by (used in) investing activities | (5,065 | ) | | (4,276 | ) | | (3,595 | ) |
FINANCING ACTIVITIES: | | | | | |
Excess tax benefits from stock-based compensation | 6 | | | 78 | | | 429 | |
Common stock repurchased | â | | | â | | | (960 | ) |
Proceeds from long-term debt and other | 6,359 | | | 394 | | | 3,378 | |
Repayments of long-term debt | (513 | ) | | (231 | ) | | (82 | ) |
Principal repayments of capital lease obligations | (1,285 | ) | | (775 | ) | | (486 | ) |
Principal repayments of finance lease obligations | (135 | ) | | (5 | ) | | (20 | ) |
Net cash provided by (used in) financing activities | 4,432 | | | (539 | ) | | 2,259 | |
Foreign-currency effect on cash and cash equivalents | (310 | ) | | (86 | ) | | (29 | ) |
Net increase (decrease) in cash and cash equivalents | 5,899 | | | 574 | | | 2,815 | |
CASH AND CASH EQUIVALENTS, END OF PERIOD | $ | 14,557 | | | $ | 8,658 | | | $ | 8,084 | |
