Note 13 - Employee Benefit Plans Defined Contribution Plan (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Defined Contribution Plan, Employer Discretionary Contribution Amount (in Dollars)	$ 157	$ 146
Employee First 3 Percent [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent	100.00%
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent	3.00%
Employee Next 3 Percent [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent	50.00%
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent	3.00%