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Note 6 - Financial Instruments and Fair Value (Tables)

3 Months Ended

Mar. 31, 2013

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

		At March 31, 2013
						Fair Value Estimated Using
		Cost Basis Amount				Level 1 Inputs				Level 2 Inputs				Level 3 Inputs
Investment in auction rate securities		$	7,575			$	—			$	—			$	6,628

		At December 31, 2012
						Fair Value Estimated Using
		Cost Basis Amount				Level 1 Inputs				Level 2 Inputs				Level 3 Inputs
Investment in auction rate securities		$	7,575			$	—			$	—			$	6,628

Schedule of Derivative Instruments [Table Text Block]

Agreement		Notional Amount				Fixed Interest Rate			Underlying Rate	Expiration Date		Fair Value
Interest Rate Swap		$	1,993				5.075	%	3 month LIBOR	July 1, 2015		$	(79	)
Interest Rate Swap			4,116				5.075	%	3 month LIBOR	July 1, 2015			(162	)
Interest Rate Swap			7,143				5.39	%	1 month LIBOR	December 31, 2014			(239	)
Interest Rate Swap			1,381				5.39	%	1 month LIBOR	December 31, 2014			(46	)
Interest Rate Swap			2,457				5.39	%	1 month LIBOR	December 31, 2014			(82	)
Interest Rate Swap			5,561				5.39	%	1 month LIBOR	December 31, 2014			(186	)
Interest Rate Swap			5,096				5.38	%	1 month LIBOR	June 29, 2015			(242	)
Interest Rate Swap			784				5.29	%	1 month LIBOR	June 30, 2015			(36	)
Interest Rate Swap			1,503				5.29	%	1 month LIBOR	June 30, 2015			(69	)
Interest Rate Swap			7,579				5.29	%	1 month LIBOR	June 30, 2015			(347	)
Interest Rate Swap			653				5.29	%	1 month LIBOR	June 30, 2015			(30	)
Interest Rate Swap			2,626				5.29	%	1 month LIBOR	June 30, 2015			(120	)

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

			Fair Value at
Derivative Liabilities Designated as Hedging Instruments	Balance Sheet Location		March 31, 2013				December 31, 2012
Interest Rate Swaps	Other Long-Term Liabilities		$	1,638			$	1,915

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]

		Gain (Loss) Recognized in OCI on Derivatives (Effective Portion) during the Three Months Ended							Location of Loss		Loss Reclassified from Accumulated OCI into Income (Effective Portion) during the Three Months Ended
		March 31, 2013				March 31, 2012			Reclassified into Income		March 31, 2013				March 31, 2012
Interest rate swaps		$	277			$	9		Interest Expense		$	(86	)		$	(105	)

X

- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

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Tabular disclosure of the location and amount of gains and losses reported in the statement of financial performance, or when applicable, the statement of financial position. For example, (a) gains and losses recognized in the income statement on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges and (b) gains and losses initially recognized in other comprehensive income on derivative instruments designated and qualifying as cash flow hedges.

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Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

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