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Note D - Concentration of Risk (Detail) - Revenue Concentration Risk by Major Customer | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011
Customer | 10.00% |  |
Customer A [Member] |  |  |
Customer | 31.00% |  | 15.00%
Customer B [Member] |  |  |
Customer | 18.00% |  |
Customer C [Member] |  |  |
Customer |  | [1] | 43.00%
[1] | Less than 10% of total revenue

X
- Definition Percentage of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues. + References No definition available. + Details
Name: | us-gaap_EntityWideRevenueMajorCustomerPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration