Note 6 - Financial Instruments and Fair Value (Details) - Derivative Financial Instruments (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Interest Rate Swap Agreement 1 [Member]
Derivative [Line Items]
Current Notional Amount	$ 1,789
Fixed Interest Rate	5.075%
Expiration Date	Jul. 01, 2015
Fair Value	(39)
Interest Rate Swap Agreement 2 [Member]
Derivative [Line Items]
Current Notional Amount	3,696
Fixed Interest Rate	5.075%
Expiration Date	Jul. 01, 2015
Fair Value	(80)
Interest Rate Swap Agreement 3 [Member]
Derivative [Line Items]
Current Notional Amount	6,388
Fixed Interest Rate	5.39%
Expiration Date	Dec. 31, 2014
Fair Value	(69)
Interest Rate Swap Agreement 4 [Member]
Derivative [Line Items]
Current Notional Amount	1,235
Fixed Interest Rate	5.39%
Expiration Date	Dec. 31, 2014
Fair Value	(13)
Interest Rate Swap Agreement 5 [Member]
Derivative [Line Items]
Current Notional Amount	2,198
Fixed Interest Rate	5.39%
Expiration Date	Dec. 31, 2014
Fair Value	(24)
Interest Rate Swap Agreement 6 [Member]
Derivative [Line Items]
Current Notional Amount	4,974
Fixed Interest Rate	5.39%
Expiration Date	Dec. 31, 2014
Fair Value	(53)
Interest Rate Swap Agreement 7 [Member]
Derivative [Line Items]
Current Notional Amount	4,680
Fixed Interest Rate	5.38%
Expiration Date	Jun. 29, 2015
Fair Value	(108)
Interest Rate Swap Agreement 8 [Member]
Derivative [Line Items]
Current Notional Amount	704
Fixed Interest Rate	5.29%
Expiration Date	Jun. 30, 2015
Fair Value	(16)
Interest Rate Swap Agreement 9 [Member]
Derivative [Line Items]
Current Notional Amount	1,349
Fixed Interest Rate	5.29%
Expiration Date	Jun. 30, 2015
Fair Value	(31)
Interest Rate Swap Agreement 10 [Member]
Derivative [Line Items]
Current Notional Amount	6,805
Fixed Interest Rate	5.29%
Expiration Date	Jun. 30, 2015
Fair Value	(154)
Interest Rate Swap Agreement 11 [Member]
Derivative [Line Items]
Current Notional Amount	587
Fixed Interest Rate	5.29%
Expiration Date	Jun. 30, 2015
Fair Value	(13)
Interest Rate Swap Agreement 12 [Member]
Derivative [Line Items]
Current Notional Amount	2,358
Fixed Interest Rate	5.29%
Expiration Date	Jun. 30, 2015
Fair Value	$ (53)