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v3.4.0.3

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015
Cash flows from operating activities: |  |
Net income | $ 1,625 | $ 2,930
Adjustments to reconcile net income to net cash used in operating activities: |  |
Depreciation and amortization | 1,150 | 1,150
Stock-based compensation expense | 922 | 702
Deferred tax expense |  | 87
Loss on revaluation of contingent consideration | 2,005 | 1,111
Loss on disposal of assets | 3 |
Changes in assets and liabilities: |  |
Accounts receivable | (1,149) | (7,237)
Other receivables | (249) | (155)
Inventories | (3,092) | (514)
Prepaid expenses and other current assets | 781 | 314
Accounts payable | (1,600) | 435
Accrued liabilities | (4,277) | 1,380
Long-term liabilities | 70 | (2,508)
Net cash used in operating activities | (3,811) | (2,305)
Cash flows from investing activities: |  |
Purchases of marketable securities | (3,969) | (3,287)
Redemptions of marketable securities | 5,600 | 4,838
Purchases of property, plant and equipment | (431) | (1,272)
Net cash provided by investing activities | 1,200 | 279
Cash flows from financing activities: |  |
Exercise of stock options | 821 | 402
Payment of contingent considerations | (498) | (99)
Net cash provided by financing activities | 323 | 303
Effect of exchange rate changes on cash and cash equivalents | 1,409 | (2,430)
Net increase (decrease) in cash and cash equivalents | (879) | (4,153)
Cash and cash equivalents, beginning of period | 54,092 | 35,363
Cash and cash equivalents, end of period | 53,213 | 31,210
Supplemental disclosure of non-cash activities: |  |
Income taxes paid | 1,039 | $ 1,100
Payment of contingent consideration in common stock | $ 875 |

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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=56944662&loc=d3e3602-108585 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration