Note 12 - Insurance Reserves (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Insurance Loss Reserves [Abstract]
Increase (Decrease) in Self Insurance Reserve	$ 0	$ 0	$ 1,931,000

The increase (decrease) during the period in the carrying amount of accrued known and estimated losses incurred for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's' compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property.

No definition available.

Name:	us-gaap_IncreaseDecreaseInSelfInsuranceReserve
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration