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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified | 9 Months Ended
--- | ---
Sep. 30, 2013 | Sep. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES: |  |
Net income | $ 15,766 | $ 20,884
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Provision for doubtful accounts | 322 | 39
Depreciation and amortization | 3,279 | 3,028
Share-based compensation expense | 2,599 | 2,001
(Gain) loss on sale of property and equipment | (127) | 23
Deferred income taxes | 52 | (307)
Amortization of bond discount | 1 | 3
Purchase of trading investment securities | (62) | (60)
Proceeds from sale of trading investment securities | 308 | 268
Realized and unrealized gains on investments | (78) | (63)
Foreign exchange (gains) losses | (1,057) | 856
Changes in assets and liabilities: |  |
Accounts receivable | (1,781) | (429)
Inventories | (678) | (1,926)
Prepaid expenses and other current assets | (1,083) | (1,021)
Other assets | (97) | (148)
Accounts payable | 878 | (361)
Accrued volume incentives | 2,047 | 386
Accrued liabilities | 1,284 | (1,264)
Deferred revenue | (491) | 403
Income taxes payable | 199 | (4,222)
Liability related to unrecognized tax benefits | 915 | (654)
Deferred compensation payable | (167) | (112)
Net cash provided by operating activities | 22,029 | 17,324
CASH FLOWS FROM INVESTING ACTIVITIES: |  |
Purchases of property, plant and equipment | (4,590) | (5,617)
Proceeds from sale of property, plant and equipment | 233 | 25
Proceeds from maturity and sale of investments available for sale | 100 | 3,689
Purchase of investments available for sale | (278) | (197)
Net cash used in investing activities | (4,535) | (2,100)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Borrowings on revolving credit facility | 10,000 |
Principal payments of long-term debt | (2,509) | (2,465)
Dividends paid | (28,797) | (1,560)
Proceeds from the exercise of stock options | 4,300 | 1,982
Repurchase of common stock | (1,945) |
Net cash used in financing activities | (18,951) | (2,043)
Effect of exchange rates on cash and cash equivalents | (1,161) | 393
Net increase (decrease) in cash and cash equivalents | (2,618) | 13,574
Cash and cash equivalents at the beginning of the period | 79,241 | 58,969
Cash and cash equivalents at the end of the period | 76,623 | 72,543
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION: |  |
Cash paid for income taxes | 7,068 | 12,694
Cash paid for interest | $ 95 | $ 97

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- Definition Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 5 -Article 5 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3291-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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