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Note 5 - Debt (Detail) - Credit facility amended variable interest rate table | Dec. 31, 2012
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Outstanding Indebtedness | 3.00%
Greater Than $10,000 [Member] |
Outstanding Indebtedness | 3.00%
Greater Than $6,000 But Less Than Or Equal To $10,000 [Member] |
Outstanding Indebtedness | 3.25%
Greater Than $3,000 But Less Than Or Equal To $6,000 [Member] |
Outstanding Indebtedness | 3.50%

X
- Definition The percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant