Note 11 - Employee Benefit Plans (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 11 - Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Cost Recognized (in Dollars)	$ 369,969	$ 295,683
Deferred Compensation Arrangement with Individual, Compensation Expense (in Dollars)	214,539	190,791
Deferred Compensation Liability, Current and Noncurrent (in Dollars)	$ 1,282,087	$ 1,299,621
First 3 Percent of Plan Compensation [Member]
Note 11 - Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	100.00%
Matched at 100 Percent [Member]
Note 11 - Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	3.00%
Between 3 Percent and 5 Percent of Plan Compensation [Member]
Note 11 - Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	50.00%
Minimum [Member]
Note 11 - Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	1.00%
Minimum [Member] | Matched at 50 Percent [Member]
Note 11 - Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	3.00%
Maximum [Member]
Note 11 - Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	100.00%
Deferred Compensation Arrangement with Individual, Requisite Service Period	10 years
Maximum [Member] | Matched at 50 Percent [Member]
Note 11 - Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	5.00%