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Organization, Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) |  | 1 Months Ended | 12 Months Ended |  |  |
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Mar. 05, 2018 USD ($) | Sep. 30, 2017 USD ($) | May 31, 2017 USD ($) | Dec. 31, 2017 USD ($) Customer ServiceProvider Institution Business_Unit $ / shares | Dec. 31, 2016 USD ($) Customer ServiceProvider | Dec. 31, 2015 USD ($) Customer ServiceProvider | Jun. 30, 2017 USD ($) | Mar. 31, 2017 USD ($) | Dec. 31, 2014 USD ($)
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Experience in operation period |  |  |  | 30 years |  |  |  |  |
Debt discount |  |  |  | $ 400,000 | $ 1,200,000 |  |  |  |
Long-term debt, net, carrying amount |  |  |  | 3,800,000 | 2,600,000 |  |  |  |
Debt issuance costs |  |  |  | $ 100,000 | $ 200,000 |  |  |  |
Number of customers concentrated | Customer |  |  |  | 2 | 2 | 2 |  |  |
Number of service providers concentrated | ServiceProvider |  |  |  | 1 | 1 | 1 |  |  |
Financial institutions to held securities | Institution |  |  |  | 2 |  |  |  |  |
Cash and cash equivalents original maturity dates |  |  |  | Three months or less |  |  |  |  |
Bank balances |  |  |  | $ 2,000,000 | $ 2,100,000 |  |  |  |
Costs capitalized |  |  |  | $ 0 |  |  |  |  |
Substantial doubt about going concern, management's evaluation |  |  |  | In connection with preparing consolidated financial statements for the year ended December 31, 2017, management evaluated whether there were conditions and events, considered in the aggregate, that raised substantial doubt about the Company’s ability to continue as a going concern within one year from the date that the financial statements are issued. The Company considered the following:  Operating losses for eleven consecutive quarters.  Negative cash flow from operating activities for seven consecutive quarters.  Stock price below $1.00/share resulting in non-compliance with NASDAQ listing rules to maintain a stock price of $1.00/share.  Stockholders’ equity less than $2.5 million at March 31, 2017 and June 30, 2017, resulting in non-compliance with NASDAQ listing rules.  Revenue declines for two consecutive years, including a decline of 32% of revenue from the Company’s largest customer, in fiscal year 2016 compared to fiscal year 2015. Ordinarily, conditions or events that raise substantial doubt about an entity’s ability to continue as a going concern relate to the entity’s ability to meet its obligations as they become due. The Company evaluated its ability to meet its obligations as they become due within one year from the date that the financial statements are issued by considering the following:  The Company raised $4.0 million of debt financing during the year ended December 31, 2016.  The Company has raised funds from short-term loans from related parties.  As a result of the Company’s restructurings that were implemented during the three months ended December 31, 2016, and again during the three months ended March 31, 2017, the Company’s cost structure is now in line with its future revenue projections.  In May 2017, the Company issued $2.2 million in a private placement offering of its common stock.  In September 2017, the Company closed on a $5.5 million preferred stock transaction which converted $2.8 million of long and short-term debt, and received $2.7 million of new capital.  On March 5, 2018, the Company issued $5.0 million in a private placement offering of its common stock. In addition to the recent capital raised on March 5, 2018, management also believes that the Company will generate enough cash from operations to satisfy its obligations for the next twelve months from the issuance date. |  |  |  |  |
Number of consecutive period of operating losses |  |  |  | 33 months |  |  |  |  |
Number of consecutive period of negative cash flows from operating activities |  |  |  | 21 months |  |  |  |  |
Stock price | $ / shares |  |  |  | $ 1.00 |  |  |  |  |
Stockholders’ equity |  |  |  | $ 4,567,000 | 3,059,000 | $ 14,026,000 |  |  | $ 14,902,000
Debt financing |  |  |  |  | 4,000,000 |  |  |  |
Common shares issued in stock offering,net of offering costs |  |  |  | $ 1,992,000 |  |  |  |  |
Preferred stock transaction |  | $ 5,500,000 |  |  |  |  |  |  |
Debt instrument, principal amount |  | 2,800,000 |  |  |  |  |  |  |
New equity capital raised |  | $ 2,700,000 |  |  |  |  |  |  |
Substantial doubt about going concern, management's plans, substantial doubt not alleviated |  |  |  | The Company will take the following actions if it starts to trend unfavorably to its internal profitability and cash flow projections, in order to mitigate conditions or events that would raise substantial doubt about its ability to continue as a going concern:  Raise additional capital through short-term loans.  Implement additional restructuring and cost reductions.  Raise additional capital through a private placement.  Secure a commercial bank line of credit.  Dispose of one or more product lines.  Sell or license intellectual property. |  |  |  |  |
Number of operating groups | Business_Unit |  |  |  | 2 |  |  |  |  |
Graphics [Member] |  |  |  |  |  |  |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Total sales incentives |  |  |  | $ 300,000 | $ 300,000 | $ 200,000 |  |  |
Private Placement [Member] |  |  |  |  |  |  |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Common shares issued in stock offering,net of offering costs |  |  | $ 2,200,000 |  |  |  |  |  |
Private Placement [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Common shares issued in stock offering,net of offering costs | $ 5,000,000 |  |  |  |  |  |  |  |
Largest Customer [Member] |  |  |  |  |  |  |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Percentage of decline of revenue |  |  |  |  | 32.00% | 32.00% |  |  |
Customer Relationships Intangible Asset [Member] |  |  |  |  |  |  |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Asset impairment charges |  |  |  |  | $ 400,000 |  |  |  |
Customer Concentration Risk [Member] | Revenues [Member] |  |  |  |  |  |  |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Concentration percentage |  |  |  | 75.00% | 77.00% | 76.00% |  |  |
Customer Concentration Risk [Member] | Accounts Receivable [Member] |  |  |  |  |  |  |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Concentration percentage |  |  |  | 72.00% | 80.00% | 83.00% |  |  |
Supplier concentration risk [Member] | Accounts payable [Member] |  |  |  |  |  |  |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Concentration percentage |  |  |  | 11.00% | 24.00% | 13.00% |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Estimated useful lives of the assets |  |  |  | 3 years |  |  |  |  |
Intangible assets and amortization, useful life |  |  |  | 2 years |  |  |  |  |
Minimum [Member] | Customer Concentration Risk [Member] | Revenues [Member] |  |  |  |  |  |  |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Concentration percentage |  |  |  | 10.00% | 10.00% | 10.00% |  |  |
Minimum [Member] | Supplier concentration risk [Member] | Purchase [Member] |  |  |  |  |  |  |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Concentration percentage |  |  |  | 10.00% | 10.00% | 10.00% |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Estimated useful lives of the assets |  |  |  | 7 years |  |  |  |  |
Intangible assets and amortization, useful life |  |  |  | 6 years |  |  |  |  |
Stockholders’ equity |  |  |  |  |  |  | $ 2,500,000 | $ 2,500,000 |

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