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Summary of Significant Accounting Policies (Details) (USD $) | 12 Months Ended
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Dec. 31, 2012 Supplier Manufacturer Customer Contract | Dec. 31, 2011 Supplier Customer Contract | Dec. 31, 2010 Customer Supplier
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |
Antidilutive securities excluded from computation of earnings per share | 106,000 | 106,000 | 513,000
Summary of Significant Accounting Policies (Additional Textual) [Abstract] |  |  |
Maturity of cash equivalents | 90 days |  |
Deposits with certain financial institutions | $ 5,500,000 | $ 11,400,000 |
Accounts receivable, allowance for doubtful accounts | 339,000 | 97,000 |
Inventory net of write-downs | 171,000 | 7,000 | (12,000)
Prepaid inventory balances included in prepaid assets | 1,061,000 | 2,158,000 |
Number of outstanding forward exchange contract | 0 | 1 |
Unrealized gain or loss |  | 0 |
Impairment of long-lived assets | 0 | 0 | 0
Advertising expense | $ 692,000 | $ 534,000 | $ 1,156,000
Years under examination, description | Company are subject to IRS examination for the 2004 through 2012 tax years |  |
Year under examination | 2004 |  |
Year under examination one | 2012 |  |
Percentage of tax benefit likely of being realized upon settlement | 50.00% |  |
Number of largest suppliers | 3 | 3 | 1
Number of major customers | 2 | 3 | 3
Company's agreement with Samsung to distribute its products to customers in Argentina Expiry date | Mar. 31, 2012 |  |
Number of manufacturers | 9 |  |
Percentage of cost of sales represented by manufacturer one | 24.00% |  |
Percentage of cost of sales represented by manufacturer two | 24.00% |  |
Percentage of cost of sales represented by manufacturer three | 21.00% |  |
Major Customer One [Member] |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |
Customers accounted for accounts receivable | 12.00% | 11.00% | 48.00%
Customers accounted for total net sales | 16.00% | 14.00% | 31.00%
Major Customer Two [Member] |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |
Customers accounted for accounts receivable | 19.00% | 15.00% | 0.00%
Customers accounted for total net sales | 11.00% | 13.00% | 18.00%
Major Customer Three [Member] |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |
Customers accounted for accounts receivable |  | 17.00% | 10.00%
Customers accounted for total net sales |  | 13.00% | 11.00%
Major supplier one [Member] |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |
Percentage of total cost of sale by major suppliers | 24.00% | 42.00% | 83.00%
Major supplier two [Member] |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |
Percentage of total cost of sale by major suppliers | 24.00% | 21.00% |
Major supplier three [Member] |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |
Percentage of total cost of sale by major suppliers | 21.00% | 10.00% |
Stock Options [Member] |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |
Antidilutive securities excluded from computation of earnings per share | 537,000 | 527,000 | 277,000
Minimum [Member] |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |
Estimated useful lives of property and equipment | 18 months |  |
State income tax | 3 years |  |
Customers accounted for total net sales | 10.00% | 10.00% | 10.00%
Maximum [Member] |  |  |
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |
Estimated useful lives of property and equipment | 7 years |  |
State income tax | 4 years |  |

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