Note 10 - Long-Term Debt (Details) - Borrowings under the Senior Secured Revolving Credit Facility													3 Months Ended
	Jan. 15, 2012	Jul. 19, 2011	Mar. 31, 2014 Eurodollar [Member] Pricing Tier 1 [Member]	Mar. 31, 2014 Eurodollar [Member] Pricing Tier 2 [Member]	Mar. 31, 2014 Eurodollar [Member] Pricing Tier 3 [Member]	Mar. 31, 2014 Eurodollar [Member] Pricing Tier 4 [Member]	Mar. 31, 2014 Eurodollar [Member] Pricing Tier 5 [Member]	Mar. 31, 2014 Base Rate [Member] Pricing Tier 1 [Member]	Mar. 31, 2014 Base Rate [Member] Pricing Tier 2 [Member]	Mar. 31, 2014 Base Rate [Member] Pricing Tier 3 [Member]	Mar. 31, 2014 Base Rate [Member] Pricing Tier 4 [Member]	Mar. 31, 2014 Base Rate [Member] Pricing Tier 5 [Member]	Mar. 31, 2014 Pricing Tier 1 [Member]	Mar. 31, 2014 Pricing Tier 2 [Member]	Mar. 31, 2014 Pricing Tier 3 [Member]	Mar. 31, 2014 Pricing Tier 4 [Member]	Mar. 31, 2014 Pricing Tier 5 [Member]	Mar. 31, 2014 Minimum [Member] Pricing Tier 1 [Member]	Mar. 31, 2014 Minimum [Member] Pricing Tier 5 [Member]	Mar. 31, 2014 Maximum [Member] Pricing Tier 1 [Member]	Mar. 31, 2014 Maximum [Member] Pricing Tier 5 [Member]
Guarantor Obligations [Line Items]
Consolidated Leverage Ratio																		2.50%	1.00%	1.00%	1.00%
Commitment Fee/Unused Line Fee													0.50%	0.45%	0.40%	0.35%	0.30%
Letter of Credit Fee													3.75%	3.50%	3.25%	3.00%	2.75%
Variable Rate	9.00%	9.00%	3.75%	3.50%	3.25%	3.00%	2.75%	2.75%	2.50%	2.25%	2.00%	1.75%