Quarterly report pursuant to Section 13 or 15(d)

Goodwill, Other Intangible Assets, and Acquisition Related Accounting (Details Textual)

v3.8.0.1
Goodwill, Other Intangible Assets, and Acquisition Related Accounting (Details Textual) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Indefinite-lived Intangible Assets [Line Items]        
Goodwill   $ 2,792   $ 2,792
Pool Of Purchased Loans [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Goodwill, Purchase Accounting Adjustments $ 178      
Fixed Assets Valuations [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Goodwill, Purchase Accounting Adjustments 109      
Accrued WithDrawal Liability [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Goodwill, Purchase Accounting Adjustments $ 162      
First Federal Acquisition [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Goodwill   2,000    
Amortization of Intangible Assets   9 $ 9  
First Federal Acquisition [Member] | Loans Receivable [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Accretion (Amortization) of Discounts and Premiums, Investments   1,100    
Accretion Expense   $ 112 146  
First Federal Acquisition [Member] | Loans Receivable [Member] | Home Equity Line of Credit [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Accretion Amortization Of Discounts And Premiums Term   55 months    
First Federal Acquisition [Member] | During 2017 [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Amortization of Intangible Assets   $ 3    
First Federal Acquisition [Member] | During 2017 [Member] | Loans Receivable [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Accretion (Amortization) of Discounts and Premiums, Investments   46    
First Federal Acquisition [Member] | During 2018 [Member] | Loans Receivable [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Accretion Expense   151    
First Federal Acquisition [Member] | Through 2022 [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year   48    
Core Deposits [Member] | First Federal Acquisition [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Finite-Lived Core Deposits, Gross   $ 93    
Finite-Lived Intangible Asset, Useful Life   7 years 10 months 24 days    
Liberty Savings [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Goodwill   $ 804    
Amortization of Intangible Assets   43 43  
Liberty Savings [Member] | Certificates of Deposit [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Accretion (Amortization) of Discounts and Premiums, Investments   $ 124    
Accretion Amortization Of Discounts And Premiums Term   17 months    
Amortization Expense   $ 0 66  
Liberty Savings [Member] | Loans Receivable [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Accretion (Amortization) of Discounts and Premiums, Investments   $ 1,200    
Accretion Amortization Of Discounts And Premiums Term   44 months    
Accretion Expense   $ 239 $ 274  
Liberty Savings [Member] | During 2017 [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Accretion Expense   67    
Liberty Savings [Member] | During 2018 [Member] | Loans Receivable [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Accretion Expense   266    
Liberty Savings [Member] | During 2019 [Member] | Loans Receivable [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Accretion Expense   44    
Liberty Savings [Member] | First Federal Acquisition [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Goodwill   2,800    
Liberty Savings [Member] | Core Deposits [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Finite-Lived Core Deposits, Gross   $ 471    
Finite-Lived Intangible Asset, Useful Life   8 years 2 months 12 days    
Liberty Savings [Member] | Core Deposits [Member] | During 2017 [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Amortization of Intangible Assets   $ 14    
Liberty Savings [Member] | Core Deposits [Member] | Through Third Quarter 2023 [Member]        
Indefinite-lived Intangible Assets [Line Items]        
Amortization of Intangible Assets   $ 327