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Note 5 - Debt (Details) - Credit Facility Amended Variable Interest Rate Table
 12 Months Ended
Dec. 31, 2013
Applicable Margin For Alternate Base Rate Loans [Member] | Greater Than $8,000,000 [Member]
  
Note 5 - Debt (Details) - Credit Facility Amended Variable Interest Rate Table [Line Items]  
Outstanding Indebtedness 1.00%
Applicable Margin For Alternate Base Rate Loans [Member] | $5,000,000UpTo$8,000,000
  
Note 5 - Debt (Details) - Credit Facility Amended Variable Interest Rate Table [Line Items]  
Outstanding Indebtedness 1.25%
Applicable Margin For Alternate Base Rate Loans [Member] | Less Than $5,000,000 [Member]
  
Note 5 - Debt (Details) - Credit Facility Amended Variable Interest Rate Table [Line Items]  
Outstanding Indebtedness 1.50%
Applicable Margin For LIBOR Rate Loans [Member] | Greater Than $8,000,000 [Member]
  
Note 5 - Debt (Details) - Credit Facility Amended Variable Interest Rate Table [Line Items]  
Outstanding Indebtedness 2.00%
Applicable Margin For LIBOR Rate Loans [Member] | $5,000,000UpTo$8,000,000
  
Note 5 - Debt (Details) - Credit Facility Amended Variable Interest Rate Table [Line Items]  
Outstanding Indebtedness 2.25%
Applicable Margin For LIBOR Rate Loans [Member] | Less Than $5,000,000 [Member]
  
Note 5 - Debt (Details) - Credit Facility Amended Variable Interest Rate Table [Line Items]  
Outstanding Indebtedness 2.50%