Note 10 - Employee Benefit Plans (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Sep. 30, 2013
Compensation and Retirement Disclosure [Abstract]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	10.00%
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount (in Dollars)	$ 5
Defined Contribution Plan Employer Matching Contribution Vesting Period	4 years

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration