Document and Entity Information [Abstract] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Accounts receivable, net of allowance of $304 and $166 Accounts Receivable, Net, Current Allowance for accounts receivable Allowance for Doubtful Accounts Receivable, Current Taxes receivable Income Taxes Receivable, Current Inventory Inventory, Net Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current, Total Total current assets Fixed assets, net of accumulated depreciation of $3,028 and $2,973 Property, Plant and Equipment, Net Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Other assets Other Assets, Noncurrent Total assets Assets, Total Total assets LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued expenses Accrued Liabilities, Current Taxes payable Taxes Payable, Current Capital lease obligations, current portion Capital Lease Obligations, Current Total current liabilities Liabilities, Current, Total Total current liabilities Capital lease obligations Capital Lease Obligations, Noncurrent Long-term liabilities - other Other Liabilities, Noncurrent Commitments and contingencies (Note 7) Commitments and Contingencies Shareholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Common stock, no par value: Authorized - 100,000,000; issued and outstanding shares - 31,992,581 and 30,418,301 at June 30, 2011 and December 31, 2010, respectively Common Stock, Value, Issued Common stock, par value Common Stock, No Par Value Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Common stock, shares outstanding Common Stock, Shares, Outstanding Additional paid-in capital Additional Paid in Capital, Common Stock Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated deficit Retained Earnings (Accumulated Deficit) Total shareholders' equity Stockholders' Equity Attributable to Parent, Total Total shareholders' equity Total liabilities and shareholders' equity Liabilities and Equity, Total Total liabilities and shareholders' equity Revenue Sales Revenue, Goods, Net Cost of goods sold Cost of Goods Sold Write Down Of Excess Inventory Write-down of excess GABA inventory Write-down of excess GABA inventory Gross profit Gross Profit Gross profit Licensing revenue Licenses Revenue Operating expenses: Operating Expenses [Abstract] Promotion and selling Selling and Marketing Expense General and administrative General and Administrative Expense Total operating expenses Operating Expenses Total operating expenses Loss from operations Operating Income (Loss) Loss from operations Other income (expense), net Nonoperating Income (Expense) Loss before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Loss before income taxes Income tax expense, net Income Tax Expense (Benefit) Income tax expense, net Net loss Net Income (Loss) Attributable to Parent Net loss Net loss per share - basic and diluted Earnings Per Share, Basic and Diluted Weighted Average Number Of Shares Basic And Diluted Outstanding Weighted average basic and diluted common shares outstanding Weighted average basic and diluted common shares outstanding OPERATING ACTIVITIES: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net loss to net cash used in operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Stock-based compensation Share-based Compensation Change in allowance for doubtful accounts Provision for Doubtful Accounts Inventory write-down Inventory Write-down Loss on disposal of fixed assets Gain (Loss) on Disposition of Property Loss on disposal of fixed assets Deferred income taxes Deferred Income Tax Expense (Benefit) Other non-cash charges and credits Other Noncash Income (Expense) Other non-cash charges and credits Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Accounts receivable Taxes receivable Increase (Decrease) in Income Taxes Receivable Taxes receivable Inventory Increase (Decrease) in Inventories Inventory Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other current assets Other assets Increase (Decrease) in Other Operating Assets Other assets Accounts payable Increase (Decrease) in Accounts Payable Accrued expenses Increase (Decrease) in Accrued Liabilities Taxes payable Increase (Decrease) in Income Taxes Payable Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities Net cash used in operating activities INVESTING ACTIVITIES: Net Cash Provided by (Used in) Investing Activities [Abstract] Purchase of certificate of deposit, restricted Payments to Acquire Restricted Certificates of Deposit Purchase of certificate of deposit, restricted Proceeds From Redemption Of Restricted Certificates Of Deposit Redemption of certificate of deposit, restricted Redemption of certificate of deposit, restricted Purchase of fixed assets Payments to Acquire Property, Plant, and Equipment Purchase of fixed assets Sale of fixed assets Proceeds from Sale of Property, Plant, and Equipment Net cash (used in) provided by investing activities Net Cash Provided by (Used in) Investing Activities Net cash (used in) provided by investing activities FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from issuance of common stock, net Proceeds from Issuance of Common Stock Proceeds from capital lease obligation Proceeds from Long-term Capital Lease Obligations Proceeds from exercise of stock options Proceeds from Stock Options Exercised Payments on capital lease obligations Repayments of Long-term Capital Lease Obligations Payments on capital lease obligations Repayment of note payable Repayments of Notes Payable Repayment of note payable Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Net cash provided by (used in) financing activities Net decrease in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Net decrease in cash and cash equivalents Effect of exchange rate changes on cash Effect of Exchange Rate on Cash and Cash Equivalents Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Supplemental disclosure: Supplemental Cash Flow Information [Abstract] Cash received (paid) during period for: Cash Paid Received During Period Abstract Cash received (paid) during period for: Interest Interest Paid Income taxes Income Taxes Paid Nature of Operations and Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Nature of Operations and Summary of Significant Accounting Policies [Abstract] Nature of Operations and Summary of Significant Accounting Policies [Abstract] Equity Financing Stockholders' Equity Note Disclosure [Text Block] Equity Financing/Comprehensive Loss [Abstract] Equity Financing/Comprehensive Loss [Abstract] Inventory Inventory Disclosure [Text Block] Inventory [Abstract] Inventory [Abstract] Capital Lease Capital Leases in Financial Statements of Lessee Disclosure [Text Block] Capital Lease [Abstract] Capital Lease [Abstract] Lease Obligations [Text Block] Lease Obligations Lease Obligations Lease Obligations [Abstract] Lease Obligations [Abstract] Lease Obligations Stock-Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Stock-Based Compensation [Abstract] Stock-Based Compensation [Abstract] Commitments and contingencies Commitments and Contingencies Disclosure [Text Block] Commitments and contingencies [Abstract] Commitments and contingencies [Abstract] Comprehensive Loss Comprehensive Income (Loss) Note [Text Block] Segment Information Segment Reporting Disclosure [Text Block] Segment Information [Abstract] Segment Information [Abstract] Subsequent Events Subsequent Events [Text Block] Subsequent Events [Abstract] Subsequent Events [Abstract] Amendment Flag Current Fiscal Year End Date Document Period End Date Document Type Entity Central Index Key Entity Common Stock, Shares Outstanding Entity Current Reporting Status Entity Filer Category Entity Registrant Name Entity Voluntary Filers Entity Well-known Seasoned Issuer Entity Public Float Document Fiscal Period Focus Document Fiscal Year Focus Condensed Consolidated Balance Sheets [Abstract] Condensed Consolidated Statements of Operations [Abstract] Condensed Consolidated Statements of Cash Flows [Abstract]