Consolidated Statements of Changes in Shareholders' Equity (Parentheticals) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Additional Paid-in Capital [Member] | United Group Banking Company of Florida, Inc. [Member]    
Offering expenses   $ 272,000
Additional Paid-in Capital [Member] | Reunion Bank of Florida [Member]    
Offering expenses $ 219,000  
Additional Paid-in Capital [Member]    
Offering expenses $ 732,000 $ 28,000