Note 10 - Long-Term Debt (Details) - Borrowings Under the Senior Secured Revolving Credit Facility	9 Months Ended
	Sep. 30, 2014
Pricing Tier 1 [Member] | Eurodollar [Member]
Guarantor Obligations [Line Items]
Base Rate Loans	3.75%
Pricing Tier 1 [Member] | Base Rate [Member]
Guarantor Obligations [Line Items]
Base Rate Loans	2.75%
Pricing Tier 1 [Member]
Guarantor Obligations [Line Items]
Consolidated Leverage Ratio	2.50
Commitment Fee/Unused Line Fee	0.50%
Letter of Credit Fee	3.75%
Pricing Tier 2 [Member] | Eurodollar [Member]
Guarantor Obligations [Line Items]
Base Rate Loans	3.50%
Pricing Tier 2 [Member] | Base Rate [Member]
Guarantor Obligations [Line Items]
Base Rate Loans	2.50%
Pricing Tier 2 [Member] | Maximum [Member]
Guarantor Obligations [Line Items]
Consolidated Leverage Ratio	2.50
Pricing Tier 2 [Member]
Guarantor Obligations [Line Items]
Consolidated Leverage Ratio	2.00
Commitment Fee/Unused Line Fee	0.45%
Letter of Credit Fee	3.50%
Pricing Tier 3 [Member] | Eurodollar [Member]
Guarantor Obligations [Line Items]
Base Rate Loans	3.25%
Pricing Tier 3 [Member] | Base Rate [Member]
Guarantor Obligations [Line Items]
Base Rate Loans	2.25%
Pricing Tier 3 [Member] | Maximum [Member]
Guarantor Obligations [Line Items]
Consolidated Leverage Ratio	2.00
Pricing Tier 3 [Member]
Guarantor Obligations [Line Items]
Consolidated Leverage Ratio	1.50
Commitment Fee/Unused Line Fee	0.40%
Letter of Credit Fee	3.25%
Pricing Tier 4 [Member] | Eurodollar [Member]
Guarantor Obligations [Line Items]
Base Rate Loans	3.00%
Pricing Tier 4 [Member] | Base Rate [Member]
Guarantor Obligations [Line Items]
Base Rate Loans	2.00%
Pricing Tier 4 [Member] | Maximum [Member]
Guarantor Obligations [Line Items]
Consolidated Leverage Ratio	1.50
Pricing Tier 4 [Member]
Guarantor Obligations [Line Items]
Consolidated Leverage Ratio	1.00
Commitment Fee/Unused Line Fee	0.35%
Letter of Credit Fee	3.00%
Pricing Tier 5 [Member] | Eurodollar [Member]
Guarantor Obligations [Line Items]
Base Rate Loans	2.75%
Pricing Tier 5 [Member] | Base Rate [Member]
Guarantor Obligations [Line Items]
Base Rate Loans	1.75%
Pricing Tier 5 [Member] | Minimum [Member]
Guarantor Obligations [Line Items]
Consolidated Leverage Ratio	1.00
Pricing Tier 5 [Member]
Guarantor Obligations [Line Items]
Commitment Fee/Unused Line Fee	0.30%
Letter of Credit Fee	2.75%