Note 6 - Financial Instruments and Fair Value (Details) - Derivative Financial Instruments (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Interest Rate Swap Agreement 1 [Member]
Derivative [Line Items]
Current Notional Amount	$ 1,830
Fixed Interest Rate	5.075%
Underlying Rate	3 month LIBOR
Expiration Date	Jul. 01, 2015
Fair Value	(44)
Interest Rate Swap Agreement 2 [Member]
Derivative [Line Items]
Current Notional Amount	3,780
Fixed Interest Rate	5.075%
Underlying Rate	3 month LIBOR
Expiration Date	Jul. 01, 2015
Fair Value	(92)
Interest Rate Swap Agreement 3 [Member]
Derivative [Line Items]
Current Notional Amount	6,539
Fixed Interest Rate	5.39%
Underlying Rate	1 month LIBOR
Expiration Date	Dec. 31, 2014
Fair Value	(103)
Interest Rate Swap Agreement 4 [Member]
Derivative [Line Items]
Current Notional Amount	1,264
Fixed Interest Rate	5.39%
Underlying Rate	1 month LIBOR
Expiration Date	Dec. 31, 2014
Fair Value	(20)
Interest Rate Swap Agreement 5 [Member]
Derivative [Line Items]
Current Notional Amount	2,250
Fixed Interest Rate	5.39%
Underlying Rate	1 month LIBOR
Expiration Date	Dec. 31, 2014
Fair Value	(35)
Interest Rate Swap Agreement 6 [Member]
Derivative [Line Items]
Current Notional Amount	5,091
Fixed Interest Rate	5.39%
Underlying Rate	1 month LIBOR
Expiration Date	Dec. 31, 2014
Fair Value	(80)
Interest Rate Swap Agreement 7 [Member]
Derivative [Line Items]
Current Notional Amount	4,680
Fixed Interest Rate	5.38%
Underlying Rate	1 month LIBOR
Expiration Date	Jun. 29, 2015
Fair Value	(134)
Interest Rate Swap Agreement 8 [Member]
Derivative [Line Items]
Current Notional Amount	720
Fixed Interest Rate	5.29%
Underlying Rate	1 month LIBOR
Expiration Date	Jun. 30, 2015
Fair Value	(20)
Interest Rate Swap Agreement 9 [Member]
Derivative [Line Items]
Current Notional Amount	1,380
Fixed Interest Rate	5.29%
Underlying Rate	1 month LIBOR
Expiration Date	Jun. 30, 2015
Fair Value	(38)
Interest Rate Swap Agreement 10 [Member]
Derivative [Line Items]
Current Notional Amount	6,960
Fixed Interest Rate	5.29%
Underlying Rate	1 month LIBOR
Expiration Date	Jun. 30, 2015
Fair Value	(189)
Interest Rate Swap Agreement 11 [Member]
Derivative [Line Items]
Current Notional Amount	600
Fixed Interest Rate	5.29%
Underlying Rate	1 month LIBOR
Expiration Date	Jun. 30, 2015
Fair Value	(16)
Interest Rate Swap Agreement 12 [Member]
Derivative [Line Items]
Current Notional Amount	2,412
Fixed Interest Rate	5.29%
Underlying Rate	1 month LIBOR
Expiration Date	Jun. 30, 2015
Fair Value	$ (66)