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Organization, Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2015 USD ($) Customer ServiceProvider Business_Unit Institution | Dec. 31, 2014 USD ($) Customer ServiceProvider | Dec. 31, 2013 USD ($) Customer ServiceProvider
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Experience in operation period | 30 years |  |
Number of customers concentrated | Customer | 2 | 2 | 3
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 | $ 8,500,000 | $ 9,900,000 |
Inventory components | 39,000 | 97,000 |
Costs capitalized | $ 0 |  |
Number of operating groups | Business_Unit | 2 |  |
Advertising expenses | $ 300,000 | $ 300,000 | $ 400,000
Customer Concentration Risk [Member] | Revenues [Member] |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Concentration percentage | 76.70% | 79.20% | 77.50%
Customer Concentration Risk [Member] | Accounts receivable [Member] |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Concentration percentage | 83.00% | 87.00% | 83.00%
Supplier concentration risk [Member] | Accounts payable [Member] |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Concentration percentage | 24.00% | 27.00% | 28.00%
Graphics [Member] |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Total sales incentives | $ 200,000 | $ 500,000 | $ 1,200,000
Minimum [Member] |  |  |
Organization Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated useful lives of the assets | 3 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 |  |

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- Definition An element designated to encapsulate any additional information related to cash and cash equivalents not otherwise addressed by the existing taxonomy. Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 + Details
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