Use of Estimates	6 Months Ended
Jun. 30, 2011
Use Of Estimates [Abstract]
Use Of Estimates Disclosure [Text Block]	8. Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, as well as the disclosure of contingent assets and liabilities at the date of its consolidated financial statements. The Company bases its estimates on historical experience, actuarial valuations and various other factors that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Some of those judgments can be subjective and complex and, consequently, actual results may differ from these estimates under different assumptions or conditions. The Company must make these estimates and assumptions because certain information is dependent on future events and cannot be calculated with a high degree of precision from the data currently available. Such estimates include the Company's estimates of reserves, such as the allowance for doubtful accounts, sales returns, warranty allowances, inventory valuation allowances, insurance losses and loss reserves, valuation of long-lived assets, estimates of realization of income tax net operating loss carryforwards, computation of stock-based compensation, as well as valuation calculations such as the Company’s goodwill impairment calculations and derivative liability calculations.

8. Use of Estimates

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, as well as the disclosure of contingent assets and liabilities at the date of its consolidated financial statements. The Company bases its estimates on historical experience, actuarial valuations and various other factors that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Some of those judgments can be subjective and complex and, consequently, actual results may differ from these estimates under different assumptions or conditions. The Company must make these estimates and assumptions because certain information is dependent on future events and cannot be calculated with a high degree of precision from the data currently available. Such estimates include the Company's estimates of reserves, such as the allowance for doubtful accounts, sales returns, warranty allowances, inventory valuation allowances, insurance losses and loss reserves, valuation of long-lived assets, estimates of realization of income tax net operating loss carryforwards, computation of stock-based compensation, as well as valuation calculations such as the Company’s goodwill impairment calculations and derivative liability calculations.