Note 18 - Employee Benefit Plans (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Note 18 - Employee Benefit Plans (Details) [Line Items]
Minimum Number of Years Allowed to Participate in Employee Stock Ownership Plan	2 years
Minimum Number of Hours Allowed to Participate in Employee Stock Ownership Plan for Part Time Employees	1000 hours
Stock Issued During Period, Shares, Employee Stock Ownership Plan (in Shares)	18,012	11,887	3,825
Stock Issued During Period, Value, Employee Stock Ownership Plan	$ 541,000	$ 301,902	$ 92,000
Employee Stock Ownership Plan (ESOP), Shares Contributed to ESOP (in Shares)	107,202	73,439	51,779
Employee Stock Ownership Plan (ESOP), Shares in ESOP (in Shares)	990,047
Percentage of Outstanding Common Stock Under Employee Stock Ownership Plan	1.20%
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	75.00%
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 2,000,000	$ 1,400,000	$ 1,000,000
Percentage of Participant Borrowing Capacity of Vested Amount	50.00%
Less Than Two Years of Service [Member]
Note 18 - Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage	0.00%
Yearly After Two Years of Service [Member]
Note 18 - Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage	25.00%
Matched at 100 Percent [Member]
Note 18 - Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	4.00%
Maximum [Member]
Note 18 - Employee Benefit Plans (Details) [Line Items]
Employee Stock Ownership Plan (ESOP), Debt Structure, Direct Loan, Employer Cash Payments Used for Debt Service	$ 50,000
Minimum [Member]
Note 18 - Employee Benefit Plans (Details) [Line Items]
Employee Stock Ownership Plan (ESOP), Debt Structure, Direct Loan, Employer Cash Payments Used for Debt Service	$ 1,000