Organization, Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail)		1 Months Ended		12 Months Ended
	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