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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Cash flows from operating activities: |  |  |
Net earnings | $ 38,765 | $ 33,277 | $ 26,785
Adjustments to reconcile net earnings to net cash provided by operating activities: |  |  |
Depreciation and amortization | 9,291 | 8,559 | 8,130
Stock compensation expense | 3,692 | 3,992 | 3,076
Shares issued under employee benefit plans | 475 | 431 | 430
Deferred income tax expense | 307 | (669) | (1,216)
(Recovery of) provision for doubtful accounts | (27) | (225) | 305
Foreign currency transaction loss (gain) | 197 | (25) | 36
Gain on sale of a product line | 0 | (931) | 0
Loss on impairment of assets | 94 | 311 | 0
Other | (57) | 0 | (8)
Changes in assets and liabilities |  |  |
Accounts receivable | (2,697) | (2,744) | 862
Inventories | (3,009) | (1,863) | 2,656
Prepaid expenses and other current assets | (339) | 43 | 1,776
Accounts payable and accrued expenses | 739 | 2,645 | 4,037
Income taxes | (2,924) | (4,091) | 1,009
Customer deposits and other deferred revenue | 40 | 0 | 0
Other | 355 | 320 | 194
Net cash provided by operating activities | 44,902 | 39,030 | 48,072
Cash flows from investing activities: |  |  |
Proceeds from sale of a product line | 0 | 1,125 | 0
Acquisition of a business | 0 | (4,661) | 0
Capital expenditures | (6,612) | (7,557) | (3,429)
Proceeds from sale of property, plant and equipment | 28 | 0 | 0
Intangible assets (acquired) disposed | (25) | 44 | (215)
Net cash used in investing activities | (6,609) | (11,049) | (3,644)
Cash flows from financing activities: |  |  |
Proceeds from long-term debt | 0 | 97 | 0
Principal payments on long-term debt | (3,557) | (1,458) | (2,844)
Proceeds from short-term obligations | 0 | 0 | 701
Repayments of short-term obligations | 0 | 0 | (2,657)
Proceeds from stock options exercised and restricted shares purchased | 4,451 | 4,343 | 2,988
Excess tax benefits from stock compensation | 2,894 | 4,230 | 2,289
Dividends paid | (4,311) | (3,091) | (2,008)
Purchase of treasury stock | (109) | (937) | 0
Net cash (used in) provided by financing activities | (632) | 3,184 | (1,531)
Effect of exchange rate changes on cash | (133) | (344) | 113
Increase in cash and cash equivalents | 37,528 | 30,821 | 43,010
Cash and cash equivalents beginning of year | 77,253 | 46,432 | 3,422
Cash and cash equivalents end of year | $ 114,781 | $ 77,253 | $ 46,432

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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 -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3291-108585 Reference 2: 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. 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 Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer. + References Reference 1: 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 2: 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. 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 Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + 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 + Details
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