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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 income | $ 20,361 | $ 13,024 | $ 6,317
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |  |
Depreciation and amortization of fixed and intangible assets | 16,959 | 16,327 | 16,474
Amortization of other long term assets and debt issuance costs | 5,221 | 5,203 | 5,275
Amortization of discounted liabilities | 110 | 16 | 140
Stock-based compensation | 4,714 | 3,167 | 3,881
Excess tax benefit from share based compensation |  | (96) | (23)
Increase (decrease) in deferred income taxes | 398 | (151) | 27
Operating loss from equity method investment | 49 | 353 | 629
Loss from dilution of equity method investment |  |  | 7
Changes in assets and liabilities associated with operations, net of business combinations: |  |  |
Decrease (increase) in net receivables | 754 | (11,817) | 13,034
Decrease in inventories | 16,183 | 15,901 | 29,154
(Increase) decrease in income tax receivable/payable, net | (12,073) | 1,186 | 4,872
Decrease (increase) in prepaid expenses and other assets | 647 | (3,872) | 2,082
Increase (decrease) in accounts payable | 3,322 | 9,015 | (5,068)
Increase (decrease) in deferred revenue | 10,726 | (5,040) | 7,990
Decrease in accrued program costs | (4,529) | (1,441) | (8,175)
(Decrease) increase in other payables | (3,841) | 4,631 | 1,952
Net cash provided by operating activities | 59,001 | 46,406 | 78,568
Cash flows from investing activities: |  |  |
Capital expenditures | (6,666) | (10,630) | (6,899)
Investment | (950) | (3,283) | (125)
Acquisitions of businesses and intangible assets | (81,896) | (224) | (36,667)
Net cash used in investing activities | (89,512) | (14,137) | (43,691)
Cash flows from financing activities: |  |  |
Payments under line of credit agreement | (103,975) | (107,600) | (121,400)
Borrowings under line of credit agreement | 141,000 | 80,000 | 90,880
Debt issuance cost | (751) |  |
Payment on other long-term liabilities | (26) | (704) | (1,543)
Excess tax benefit from share based compensation |  | 96 | 23
Net payment from the issuance of common stock (sale of stock under ESPP, exercise of stock options and shares purchased for tax withholding) | (713) | 241 | 317
Payment of cash dividends | (1,600) | (578) | (1,141)
Net cash provided by (used in) financing activities | 33,935 | (28,545) | (32,864)
Net increase in cash and cash equivalents | 3,424 | 3,724 | 2,013
Effect of exchange rate changes on cash and cash equivalents | 44 | (1,379) | (1,374)
Cash and cash equivalents at beginning of year | 7,869 | 5,524 | 4,885
Cash and cash equivalents at end of year | 11,337 | 7,869 | 5,524
Cash paid (received) during the year for: |  |  |
Interest | 1,500 | 1,748 | 2,750
Income taxes, net | $ 17,841 | $ 4,947 | $ (3,697)

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- Definition The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. + 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 (e) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Definition Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests. + 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 (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Definition The cash outflow associated with the purchase of noncontrolling interest during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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- Definition The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the 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 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 + Details
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- Definition The net cash inflow or cash outflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Subparagraph c -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3098-108585 + Details
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=84234705&loc=SL4591552-111686 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=96868048&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84161450&loc=SL4573702-111684 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=84234705&loc=SL4591551-111686 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=84161450&loc=SL4573702-111684 + Details
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- Definition Amount of cash outflow for the payment of debt classified as other, maturing after one year or the 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=98514028&loc=d3e3291-108585 + 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 Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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