Note 12 - Commitments, Contingencies and Concentrations (Details Textual) - USD ($)
$ in Thousands
 11 Months Ended 12 Months Ended
Apr. 01, 2014
Mar. 28, 2014
Dec. 13, 2016
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Feb. 04, 2014
Dec. 31, 2013
Operating Leases, Rent Expense, Net       $ 456 $ 795 $ 660    
Reserves for Unfunded Commitments       $ 249 300      
Minimum Percentage of Credit Enhancement Guarantee to FHLB for Foreclosure Losses of Original Loan Principal Sold       1.00%        
Payments Serviced for Federal Home Loan Bank       $ 7,600        
Maximum Obligation for Guarantees to Federal Home Loan Bank if Aggregate Foreclosure Losses on Pool of Loans Exceeds Specified Amount       325,000        
Maximum Amount of Aggregate Foreclosure Losses on Entire Pool of Loans       60        
FDIC Insurance Limit on Deposit Accounts       250 250      
Loans and Leases Receivable, Gross       731,758 731,152 $ 669,494    
Derivative Liability             $ 5,000  
Litigation Settlement, Amount   $ 5,000            
Accrued Liabilities and Other Liabilities               $ 2,500
Litigation Settlement Fees and Costs $ 2,500              
Partial Indemnification, Individual Defendants Paid       2,500        
Cash Due from Bank Accounts in Excess of FDIC Insured Amount       0 $ 0      
Commercial Real Estate, Construction Land Acquisition, and Development Loans Portfolio [Member] | Financing Receivable [Member] | Credit Concentration Risk [Member]                
Loans and Leases Receivable, Gross       $ 262,200        
Loans and Leases Receivable as Percentage of Aggregate Gross Loans and Leases Receivable       35.80%        
Commercial Real Estate, Construction Land Acquisition, and Development Loans Portfolio [Member] | Financing Receivable [Member] | Geographic Concentration Risk [Member]                
Loans and Leases Receivable, Gross       $ 25,700        
Loans and Leases Receivable as Percentage of Aggregate Gross Loans and Leases Receivable     3.50%