Note 4 - Derivatives and Hedging Activities (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Note 4 - Derivatives and Hedging Activities (Details) [Line Items]
Payments for Hedge, Investing Activities				$ 2,071,650
Interest Rate Cap [Member] | Cash Flow Hedging [Member]
Note 4 - Derivatives and Hedging Activities (Details) [Line Items]
Payments for Hedge, Investing Activities					$ 2,100,000
Number of Interest Rate Derivatives Held	2		2
Noninterest Income [Member] | Cash Flow Hedging [Member]
Note 4 - Derivatives and Hedging Activities (Details) [Line Items]
Derivative Instruments, Gain Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing	$ 15,561
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		$ 10,968	$ 23,658	$ 9