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Note 7 - Debt (Details) - Prior Pricing (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2008
Base Rate [Member]
Level I [Member]
Prior Pricing [Member]
Dec. 31, 2008
Base Rate [Member]
Level II [Member]
Prior Pricing [Member]
Dec. 31, 2008
Base Rate [Member]
Level III [Member]
Prior Pricing [Member]
Dec. 31, 2008
Base Rate [Member]
Level IV [Member]
Prior Pricing [Member]
Dec. 31, 2008
Base Rate [Member]
Level V [Member]
Prior Pricing [Member]
Dec. 31, 2008
London Interbank Offered Rate (LIBOR) [Member]
Level I [Member]
Prior Pricing [Member]
Dec. 31, 2008
London Interbank Offered Rate (LIBOR) [Member]
Level II [Member]
Prior Pricing [Member]
Dec. 31, 2008
London Interbank Offered Rate (LIBOR) [Member]
Level III [Member]
Prior Pricing [Member]
Dec. 31, 2008
London Interbank Offered Rate (LIBOR) [Member]
Level IV [Member]
Prior Pricing [Member]
Dec. 31, 2008
London Interbank Offered Rate (LIBOR) [Member]
Level V [Member]
Prior Pricing [Member]
Dec. 31, 2008
Maximum [Member]
Level II [Member]
Prior Pricing [Member]
Dec. 31, 2008
Maximum [Member]
Level III [Member]
Prior Pricing [Member]
Dec. 31, 2008
Maximum [Member]
Level IV [Member]
Prior Pricing [Member]
Dec. 31, 2008
Maximum [Member]
Level V [Member]
Prior Pricing [Member]
Dec. 31, 2008
Minimum [Member]
Level I [Member]
Prior Pricing [Member]
Dec. 31, 2008
Minimum [Member]
Level II [Member]
Prior Pricing [Member]
Dec. 31, 2008
Minimum [Member]
Level III [Member]
Prior Pricing [Member]
Dec. 31, 2008
Minimum [Member]
Level IV [Member]
Prior Pricing [Member]
Debt Instrument [Line Items]                                      
Average Excess Availability (in Dollars) $ 44,100,000                     $ 70,000,000 $ 35,000,000 $ 20,000,000 $ 10,000,000 $ 70,000,000 $ 35,000,000 $ 20,000,000 $ 10,000,000
Base Rate Loans   1.25% 1.50% 1.75% 2.00% 2.25% 2.25% 2.50% 2.75% 3.00% 3.25%