Note 6 - Derivatives and Hedging Activities (Details)	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Note 6 - Derivatives and Hedging Activities (Details) [Line Items]
Payments for Hedge, Investing Activities		$ 2,071,650
Interest Rate Cap [Member] | Cash Flow Hedging [Member]
Note 6 - Derivatives and Hedging Activities (Details) [Line Items]
Payments for Hedge, Investing Activities	$ 2,100,000
Number of Interest Rate Derivatives Held	2
Noninterest Income [Member] | Cash Flow Hedging [Member]
Note 6 - Derivatives and Hedging Activities (Details) [Line Items]
Derivative Instruments, Gain Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing	$ 156
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		$ 30,212