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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
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12 Months Ended |
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Dec. 31, 2014
Manufacturer
Contract
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Dec. 31, 2013
Contract
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Dec. 31, 2012
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| Summary Of Significant Accounting Policies [Line Items] |
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| Maturity of cash equivalents |
90 days |
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| Deposits with certain financial institutions |
$ 1,000,000 |
$ 2,000,000 |
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| Restricted cash |
0 |
0 |
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| Accounts receivable, allowance for doubtful accounts |
95,000 |
373,000 |
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| Inventory net of write-downs |
255,000 |
(194,000) |
171,000 |
| Prepaid inventory balances included in prepaid assets |
2,055,000 |
2,968,000 |
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| Number of outstanding forward exchange contract |
0 |
0 |
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| Impairment of long-lived assets |
0 |
0 |
0 |
| Advertising expense |
745,000 |
523,000 |
692,000 |
| Percentage of tax benefit likely to being realized upon settlement |
50.00% |
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| Uncertain tax positions |
$ 0 |
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| Years under examination, description |
Company are subject to IRS examination for the 2004 through 2014 tax years |
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| Year under examination |
2004 |
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| Year under examination one |
2014 |
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| Anti-dilutive securities excluded from computation of earnings per share |
0 |
756,000 |
106,000 |
| Number of manufactures |
14 |
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| Percentage of cost of sales represented by manufacturer one |
38.00% |
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| Percentage of cost of sales represented by manufacturer two |
14.00% |
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| Percentage of cost of sales represented by manufacturer three |
12.00% |
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| Net Sales [Member] |
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| Summary Of Significant Accounting Policies [Line Items] |
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| Number of customers |
3 |
3 |
2 |
| Concentration Risk, Percentage |
10.00% |
10.00% |
10.00% |
| Major Supplier One [Member] |
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| Summary Of Significant Accounting Policies [Line Items] |
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| Percentage of total cost of sale by major suppliers |
38.00% |
38.00% |
24.00% |
| Major Supplier Two [Member] |
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| Summary Of Significant Accounting Policies [Line Items] |
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| Percentage of total cost of sale by major suppliers |
14.00% |
12.00% |
24.00% |
| Major Supplier Three [Member] |
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| Summary Of Significant Accounting Policies [Line Items] |
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| Percentage of total cost of sale by major suppliers |
12.00% |
10.00% |
21.00% |
| Major Customer One [Member] | Net Sales [Member] |
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| Summary Of Significant Accounting Policies [Line Items] |
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| Concentration Risk, Percentage |
25.00% |
20.00% |
16.00% |
| Major Customer One [Member] | Accounts Receivable [Member] |
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| Summary Of Significant Accounting Policies [Line Items] |
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| Concentration Risk, Percentage |
25.00% |
18.00% |
12.00% |
| Major Customer Two [Member] | Net Sales [Member] |
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| Summary Of Significant Accounting Policies [Line Items] |
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| Concentration Risk, Percentage |
13.00% |
14.00% |
11.00% |
| Major Customer Two [Member] | Accounts Receivable [Member] |
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| Summary Of Significant Accounting Policies [Line Items] |
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| Concentration Risk, Percentage |
19.00% |
15.00% |
19.00% |
| Major Customer Three [Member] | Net Sales [Member] |
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| Summary Of Significant Accounting Policies [Line Items] |
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| Concentration Risk, Percentage |
11.00% |
13.00% |
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| Major Customer Three [Member] | Accounts Receivable [Member] |
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| Summary Of Significant Accounting Policies [Line Items] |
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| Concentration Risk, Percentage |
14.00% |
24.00% |
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| Stock Options [Member] |
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| Summary Of Significant Accounting Policies [Line Items] |
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| Anti-dilutive securities excluded from computation of earnings per share |
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137,000 |
537,000 |
| Minimum [Member] |
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| Summary Of Significant Accounting Policies [Line Items] |
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| Estimated useful lives of property and equipment |
18 months |
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| State income tax |
3 years |
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| Maximum [Member] |
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| Summary Of Significant Accounting Policies [Line Items] |
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| Estimated useful lives of property and equipment |
7 years |
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| State income tax |
4 years |
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