Significant Accounting Policies (Policies)	6 Months Ended
Significant Accounting Policies (Policies)	Jun. 30, 2018
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	Principles of Consolidation The condensed consolidated financial statements of the Company have been prepared by management in accordance with accounting principles generally accepted in the United States of America (“GAAP”), applied on a basis consistent for all periods. These condensed consolidated financial statements include the accounts of the Company and its subsidiaries, all of which are wholly owned. All intercompany balances and transactions have been appropriately eliminated in consolidation.
Use of Estimates, Policy [Policy Text Block]	Use of Estimates The preparation of the condensed consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the condensed consolidated financial statements and reported amounts of revenues and expenses during the reporting period. Significant areas requiring the use of management estimates relate to the determination of provisions for impairment assessments of goodwill, other indefinite-lived intangible assets and long-lived assets; deferred revenue; allowance for doubtful receivables; inventory valuation; warranty provisions; deferred income taxes; and litigation claims. Actual results could differ from these estimates.
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign Currency Translation The financial statements of foreign subsidiaries, for which the functional currency is the local currency, are translated into U.S. dollars using the exchange rate at the consolidated balance sheet date for assets and liabilities and a weighted-average exchange rate during the year for revenue, expenses, gains and losses. Translation adjustments are recorded as other comprehensive income (loss) within shareholders’ equity. Gains or losses from foreign currency transactions are recognized in the consolidated statements of operations.
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash Equivalents Highly liquid investments with insignificant interest rate risk and original maturities of three months or less, when purchased, are classified as cash equivalents. Cash equivalents are composed of money market funds. The carrying amounts approximate fair value due to the short maturities of these instruments.
Trade and Other Accounts Receivable, Policy [Policy Text Block]	Accounts Receivable Accounts receivable is recorded at the invoiced amount and is non-interest bearing. We estimate our allowance for doubtful accounts based on an assessment of the collectability of specific accounts and the overall condition of the accounts receivable portfolio. When evaluating the adequacy of the allowance for doubtful accounts, we analyze specific trade and other receivables, historical bad debts, customer credits, customer concentrations, customer credit-worthiness, current economic trends and changes in customers’ payment terms and/or patterns. We review the allowance for doubtful accounts on a quarterly basis and record adjustments as considered necessary. Customer accounts are written-off against the allowance for doubtful accounts when an account is considered uncollectable.
Inventories, Policy [Policy Text Block]	Inventories Inventories are stated at the lower of cost and net realizable value using the first-in-first-out method. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. We assess the value of inventories periodically based upon numerous factors including, among others, expected product or material demand, current market conditions, technological obsolescence, current cost, and net realizable value. If necessary, we write down its inventory for obsolete or unmarketable inventory by an amount equal to the difference between the cost of the inventory and the net realizable value.
Goodwill and Intangible Assets, Policy [Policy Text Block]	Goodwill and Intangible Assets Goodwill represents the excess of consideration paid over the value assigned to the net tangible and identifiable intangible assets acquired. For intangible assets purchased in a business combination, the estimated fair values of the assets received are used to establish their recorded values. For intangible assets acquired in a non-monetary exchange, the estimated fair values of the assets transferred (or the estimated fair values of the assets received, if more clearly evident) are used to establish their recorded values. Valuation techniques consistent with the market approach, income approach and/or cost approach are used to measure fair value. Purchased intangible assets are amortized on a straight-line basis over their economic lives of six to 25 years for channel partner relationships, three to nine years for developed technology, three to eight years for capitalized development costs, and two to 25 years for customer relationships as this method most closely reflects the pattern in which the economic benefits of the assets will be consumed.
Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block]	Impairment of Goodwill, Intangible Assets and Long-Lived Assets Goodwill and intangible assets are tested for impairment on an annual basis at December 31, or more frequently if there are indicators of impairment. Triggering events for impairment reviews may be indicators such as adverse industry or economic trends, restructuring actions, lower projections of profitability, or a sustained decline in our market capitalization. Intangible assets are quantitatively assessed for impairment, if necessary, by comparing their estimated fair values to their carrying values. If the carrying value exceeds the fair value, the difference is recorded as an impairment. Long-lived assets are reviewed for recoverability whenever events or changes in circumstances indicate the carrying value may not be recoverable. Our consideration includes, but is not limited to: (i) significant under-performance relative to historical or projected future operating results; (ii) significant changes in the manner of use of the assets or the strategy for the Company’s overall business; (iii) significant decrease in the market value of the assets; and (iv) significant negative industry or economic trends. When the carrying value is not considered recoverable, an impairment loss for the amount by which the carrying value of a long-lived asset exceeds its fair value is recognized, with an offsetting reduction in the carrying value of the related asset.
Revenue Recognition, Policy [Policy Text Block]	Revenue Recognition The Company primarily generates revenue from solutions for standalone storage and long-term data archive products, as well as enterprise storage management solutions which are primarily grouped into three categories: (i) disk systems, (ii) tape automation systems, tape drive and media, and (iii) warranty and customer services. Approximately 90% of the Company’s revenue is recognized when performance obligations under the terms of a contract with a customer are satisfied at a point in time. These contracts generally have a single performance obligation to transfer products. Accordingly, the Company recognizes revenue when change of control has been transferred to the customer, generally at the time of shipment of products. The Company sells its products both directly to customers and through distributors generally under agreements with payment terms typically less than 45 days. Revenue on direct product sales, excluding sales to distributors, are not entitled to any specific right of return or price protection, except for any defective product that may be returned under our standard product warranty. Product sales to distribution customers are subject to certain rights of return, stock rotation privileges and price protections, that create “variable considerations”. Revenue is measured as the amount of consideration the Company expects to receive in exchange for transferring products and is generally based upon a negotiated fixed price and is net of estimates for variable considerations. For performance obligations related to warranty and customer services, such as extended product warranties, the Company transfers control and recognizes revenue over time on a ratable basis. The performance obligations are satisfied as services are rendered typically on a straight-line basis over the contract term, which is generally 12 months. In limited circumstances where a customer is unable to accept shipment and requests products be delivered to, and stored on, the Company’s premises, also known as a “bill-and-hold” arrangements, revenue is recognized when: (i) the customer has requested delayed delivery and storage of the products, (ii) the goods are segregated from the inventory, (iii) the product is complete, ready for shipment and physical transfer to the customer, and (iv) the Company does not have the ability to use the product or direct it to another customer. The Company enters into revenue arrangements that may consist of multiple performance obligations, of its product and service offerings, such as for sales of hardware devices and extended warranty services. The Company allocates revenue to the performance obligations in multiple element arrangements based on relative selling prices. The Company determines the transaction price based on its normal pricing and discounting practices for the specific product or service when sold separately. When the Company is not able to establish the individual transaction price for all performance obligations in an arrangement with multiple elements, the Company determines the selling price of each element based on third party evidence of selling price or based on the Company’s actual historical selling prices of similar items, whichever management believes provides the most reliable estimate of expected selling prices
Standard Product Warranty, Policy [Policy Text Block]	Warranty and Extended Warranty The Company records a provision for standard warranties provided with all products. If future actual costs to repair were to differ significantly from estimates, the impact of these unforeseen costs or cost reductions would be recorded in subsequent periods.
Extended Product Warranty, Policy [Policy Text Block]	Separately priced extended on-site warranties and service contracts are offered for sale to customers on all product lines. The Company contracts with third party service providers to provide service relating to on-site warranties and service contracts. Extended warranty and service contract revenue and amounts paid in advance to outside service organizations are deferred and recognized as service revenue and cost of service, respectively, over the period of the service agreement.
Shipping and Handling Cost, Policy [Policy Text Block]	Shipping and Handling Amounts billed to customers for shipping and handling are included in product revenue, and costs incurred related to shipping and handling are included in cost of product revenue.
Research and Development Expense, Policy [Policy Text Block]	Research and Development Costs Research and development expenses include payroll, employee benefits, share-based compensation expense, and other headcount-related expenses associated with product development. Research and development expenses also include third party development and programming costs, localization costs incurred to translate software for international markets, and the amortization of purchased software code and services content. Such costs related to software development are included in research and development expense until the point that technological feasibility is reached, which for our software products, is generally shortly before the products are released to manufacturing. Once technological feasibility is reached, such costs are capitalized and amortized to cost of revenue over the estimated lives of the products.
Segment Reporting, Policy [Policy Text Block]	Segment Information We report segment data based on the management approach. The management approach designates the internal reporting that is used by management for making operating and investment decisions and evaluating performance as the source of our reportable segments. We use one measurement of profitability and do not disaggregate our business for internal reporting. We operate in one segment providing data management, and desktop and application virtualization solutions for small and medium businesses and distributed enterprises. We disclose information about products and services, geographic areas, and major customers.
Comprehensive Income, Policy [Policy Text Block]	Comprehensive Loss Comprehensive loss and its components encompasses all changes in equity other than those arising from transactions with shareholders, including net loss and foreign currency translation adjustments, and is disclosed in a separate consolidated statement of comprehensive loss.
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	Share-based Compensation We account for share-based awards, and similar equity instruments, granted to employees, non-employee directors, and consultants under the fair value method. Share-based compensation award types include stock options and restricted stock. We use the Black-Scholes option pricing model to estimate the fair value of option awards on the measurement date, which generally is the date of grant. The expense is recognized over the requisite service period (usually the vesting period) for the estimated number of instruments for which service is expected to be rendered. The fair value of restricted stock units (“RSUs”) is estimated based on the market value of the Company’s common shares on the date of grant. The fair value of options granted to non-employees is estimated at the measurement date using the Black-Scholes option pricing model and the unvested options remeasured at each reporting date, with changes in fair value recognized in expense in the consolidated statement of operations. Share-based compensation expense for options with graded vesting is recognized pursuant to an accelerated method. Share-based compensation expense for RSUs is recognized over the vesting period using the straight-line method. Share-based compensation expense for an award with performance conditions is recognized when the achievement of such performance conditions are determined to be probable. If the outcome of such performance condition is not determined to be probable or is not met, no compensation expense is recognized and any previously recognized compensation expense is reversed. Forfeitures are recognized in share-based compensation expense as they occur. We have not recognized, and do not expect to recognize in the near future, any tax benefit related to share-based compensation cost as a result of the full valuation allowance of our net deferred tax assets and its net operating loss carryforward.
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Issued Accounting Pronouncements From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board (“FASB”) that are adopted by the Company as of the specified effective date. If not discussed, the Company believes that the impact of recently issued standards, which are not yet effective, will not have a material impact on the Company’s consolidated financial statements upon adoption. In June 2018, the FASB issued Accounting Standards Update (“ASU”) No. 2018-07, ASU No. 2018-07, Compensation-Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting (“ASU 2018-07). The update aligns measurement and classification guidance for share-based payments to nonemployees with the guidance applicable to employees. Under the new guidance, the measurement of equity-classified nonemployee awards will be fixed at the grant date. The update is effective for annual reporting periods, including interim periods, beginning after December 15, 2018, with early adoption permitted. We do not expect the adoption of ASU 2018-07 to have a material effect on our consolidated financial statements and related disclosures. In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350) - Simplifying the Test for Goodwill Impairment (“ASU 2017-04”). The update simplifies the subsequent measurement of goodwill by eliminating Step 2 from the goodwill impairment test. An entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount, and recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value, if applicable. The loss recognized should not exceed the total amount of goodwill allocated to the reporting unit. The same impairment test also applies to any reporting unit with a zero or negative carrying amount. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. The update is effective for annual reporting periods, including interim periods, beginning after December 15, 2019, on a prospective basis. Early adoption is permitted for interim or annual goodwill impairment tests performed after January 1, 2017. We do not expect the adoption of ASU 2017-04 to have a material effect on our consolidated financial statements and related disclosures. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) (“ASU 2016-02”). The update increases transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and requires disclosing key information about leasing arrangements. The update is effective for reporting periods beginning after December 15, 2018, with early adoption permitted. An entity will be required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach. We are currently evaluating the effect that ASU 2016-02 will have on our consolidated financial statements and related disclosures. Recently Adopted Accounting Pronouncements On January 1, 2018, we adopted ASU 2014-09, Revenue from Contracts with Customers and all the related amendments, or Accounting Standards Codification (“ASC”) Topic 606. Under Topic 606, an entity is required to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Topic 606 defines a five-step process in order to achieve this core principle, which may require the use of judgment and estimates, and also requires expanded qualitative and quantitative disclosures relating to the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers, including significant judgments and estimates used. The adoption of the new standard requires the recognition of revenues generally upon shipment to our customers for both distributors and direct consumers also known as “sell-in basis” for sales of products to certain customers which had previously been recognized on a “sell-through basis” or when the product was ultimately shipped to the end consumer. We elected to adopt this guidance using the modified retrospective method and it resulted in a cumulative adjustment reducing our accumulated deficit by approximately $0.3 million. Comparative prior periods were not adjusted and continue to be reported under FASB ASC Topic 605, Revenue Recognition. In connection with the adoption of Topic 606, we are required to capitalize certain contract acquisition costs consisting primarily of commissions paid when contracts are signed. The Company elected to follow a Topic 606 practical expedient and expense the incremental costs of obtaining a contract (sales commissions) when incurred because the amortization period is generally one year or less and capitalized long-term contract costs are not significant. For certain performance obligations related to services, extended warranty and other service agreements that are settled over time, the Company has elected not to adjust the transaction price for the consideration of the effects of time value of money for prepaid services from customers as these services and warranty services are usually fully amortized in one year or less. The impact of the adoption of ASC 606 on our unaudited consolidated balance sheet and our unaudited consolidated statements of comprehensive loss, equity and cash flows was not material. We do not expect the adoption of this guidance to have a material effect on our results of operations in future periods. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (“ASU 2016-15”). The update addresses eight cash flow classification issues and how they should be reported in the statement of cash flows. The update is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. The adoption of the new standard on January 1, 2018 did not have a material effect on our cash flows. In May 2017, the FASB issued ASU No. 2017-09, Compensation - Stock Compensation (Topic 718) - Scope of Modification Accounting (“ASU 2017-09”). The update provides clarity and is expected to reduce both diversity in practice and the cost and complexity when accounting for a change to the terms of a stock-based award. The update is effective for fiscal years, including interim periods within those fiscal years, beginning after December 15, 2017, on a prospective basis. The adoption of the new standard on January 1, 2018 did not have a material effect on our financial position, results of operations or cash flows. In July 2017, the FASB issued Accounting Standards Update (“ASU”) No. 2017-11, Earnings Per Share (Topic 260); Distinguishing Liabilities from Equity (Topic 480); Derivatives and Hedging (Topic 815) (“ASU 2017-11”). The update changes the classification of certain equity-linked financial instruments (or embedded features) with down round features. The update also clarifies existing disclosure requirements for equity-classified instruments. The update is effective retrospectively for annual reporting periods beginning after December 15, 2018, including interim periods within that reporting period. We early adopted the new standard effective January 1, 2018 and it did not have a material effect on our financial position, results of operations or cash flows.