Note 7 - Derivatives and Hedging Activities (Details) - Summary of Interest Rate Cap Derivatives (Cash Flow Hedging [Member], USD $)	Mar. 31, 2015
Interest Rate Cap 1 [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Notional amount	$ 15,000,000
Fair value	437,694
Interest Rate Cap 2 [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Notional amount	15,000,000
Fair value	676,407
Interest Rate Cap [Member]
Derivatives, Fair Value [Line Items]
Notional amount	30,000,000
Fair value	$ 1,114,101