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Note 1 - Basis of Presentation (Detail)	9 Months Ended
Note 1 - Basis of Presentation (Detail)	Sep. 30, 2012
Number of Operating Segments	1
Property, Plant and Equipment, Depreciation Methods	straight-line
Minimum Percentage of Receivable Balances for creating Allowance for Doubtful Accounts	85.00%
Period for Creating Allowance for Doubtful Accounts	120

Describes an entity's methodology for allocating the cost of a property, plant or equipment, less salvage value (if any), over the estimated useful life of the asset in a systematic and rational manner.

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