Note 10 - Long-Term Debt (Details) - Borrowings under the Senior Secured Revolving Credit Facility						6 Months Ended			6 Months Ended			6 Months Ended			6 Months Ended			6 Months Ended
	Jan. 15, 2012	Jul. 31, 2011	Jul. 19, 2011	Jun. 30, 2013 Pricing Tier 1 [Member] Eurocurrency Rate Loans [Member]	Jun. 30, 2013 Pricing Tier 1 [Member] Base Rate Loans [Member]	Jun. 30, 2013 Pricing Tier 1 [Member]	Jun. 30, 2013 Pricing Tier 2 [Member] Eurocurrency Rate Loans [Member]	Jun. 30, 2013 Pricing Tier 2 [Member] Base Rate Loans [Member]	Jun. 30, 2013 Pricing Tier 2 [Member]	Jun. 30, 2013 Pricing Tier 3 [Member] Eurocurrency Rate Loans [Member]	Jun. 30, 2013 Pricing Tier 3 [Member] Base Rate Loans [Member]	Jun. 30, 2013 Pricing Tier 3 [Member]	Jun. 30, 2013 Pricing Tier 4 [Member] Eurocurrency Rate Loans [Member]	Jun. 30, 2013 Pricing Tier 4 [Member] Base Rate Loans [Member]	Jun. 30, 2013 Pricing Tier 4 [Member]	Jun. 30, 2013 Pricing Tier 5 [Member] Eurocurrency Rate Loans [Member]	Jun. 30, 2013 Pricing Tier 5 [Member] Base Rate Loans [Member]	Jun. 30, 2013 Pricing Tier 5 [Member]
Guarantor Obligations [Line Items]
Consolidated Leverage Ratio						2.50 to 1.0			2.00 to 1.0 but < 2.50 to 1.0			1.50 to 1.0 but < 2.00 to 1.0			1.00 to 1.0 but < 1.50 to 1.0			< 1.00 to 1.0
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%
Rate Loans	9.00%	9.00%	9.00%	3.75%	2.75%		3.50%	2.50%		3.25%	2.25%		3.00%	2.00%		2.75%	1.75%