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<link:definition>1014 - Disclosure - Accounts Payable and Accrued Liabilities</link:definition>
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<link:definition>1023 - Disclosure - REVENUE (Tables)</link:definition>
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<link:definition>1024 - Disclosure - Inventories, net (Tables)</link:definition>
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<link:definition>1028 - Disclosure - Accounts Payable and Accrued Liabilities (Tables)</link:definition>
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<link:definition>1029 - Disclosure - Income Taxes (Tables)</link:definition>
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<link:definition>1045 - Disclosure - Accounts Payable and Accrued Liabilities (Details)</link:definition>
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<link:definition>1046 - Disclosure - Income Taxes (Details)</link:definition>
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<link:definition>1048 - Disclosure - Income Taxes (Details Textual)</link:definition>
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<link:definition>1049 - Disclosure - Equity Compensation Program and Stock-based Compensation (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>1050 - Disclosure - Equity Compensation Program and Stock-based Compensation (Details 1)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>1051 - Disclosure - Equity Compensation Program and Stock-based Compensation (Details 2)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>1052 - Disclosure - Equity Compensation Program and Stock-based Compensation (Details 3)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>1053 - Disclosure - Equity Compensation Program and Stock-based Compensation (Details Textual)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>1054 - Disclosure - Net Income (Loss) per Share (Details Textual)</link:definition>
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<link:definition>1055 - Disclosure - Commitments (Details Textual)</link:definition>
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<link:definition>1056 - Disclosure - Product Sales, Foreign Sales and Sales to Major Customers (Details Textual)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>1057 - Disclosure - Shareholders' Equity (Details)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>1058 - Disclosure - Fair Value of Financial Instruments (Details Textual)</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
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