Annual report pursuant to Section 13 and 15(d)

Note 2 - Acquisition Activity (Details Textual)

v3.20.1
Note 2 - Acquisition Activity (Details Textual)
$ / shares in Units, $ in Thousands
 12 Months Ended
Jan. 24, 2019
USD ($)
$ / shares
shares
Jan. 23, 2019
USD ($)
Jul. 26, 2018
USD ($)
$ / shares
shares
Jul. 25, 2018
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 17, 2018
USD ($)
May 31, 2004
USD ($)
Payments to Acquire Businesses, Net of Cash Acquired, Total         $ 15,743 $ 8,689    
Number of Banking Centers     19          
First Personal Financial Corporation [Member]                
Business Acquisition, Number of Shares Given Per Share of Acquired Company, Stockholders Holding 100 Shares or More | shares     0.1246          
Business Acquisition, Cash Paid Per Share of Acquired Company, Stockholders Holding 100 or More Shares | $ / shares     $ 6.67          
Business Acquisition, Cash Paid Per Share of Acquired Company, Holding Less Than 100 Shares | $ / shares     $ 12.12          
Business Acquisition, Number of Shares Given Per Share of Acquired Company, Less Than 100 Shares | shares     0          
Business Acquisition, Fractional Shares Multiplier | $ / shares     $ 42.95          
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares     161,875          
Payments to Acquire Businesses, Net of Cash Acquired, Total     $ 8,689          
Business Combination, Consideration Transferred, Total     15,617 $ 15,600        
Business Acquisition, Transaction Costs           $ 1,800    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt     $ 4,124          
First Personal Financial Corporation [Member] | Trust Preferred Securities Debt [Member]                
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt               $ 4,124
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Debt Redeemed             $ 4,124  
First Personal Financial Corporation [Member] | Trust Preferred Securities Debt [Member] | London Interbank Offered Rate (LIBOR) [Member]                
Debt Instrument, Basis Spread on Variable Rate     2.75%          
First Personal Financial Corporation [Member] | Minimum [Member]                
Business Acquisition, Number of Held Shares of Acquired Company | shares     100          
First Personal Financial Corporation [Member] | Maximum [Member]                
Business Acquisition, Number of Held Shares of Acquired Company | shares     100          
AJS Bancorp, Inc [Member]                
Business Acquisition, Number of Shares Given Per Share of Acquired Company, Stockholders Holding 100 Shares or More | shares 0.203              
Business Acquisition, Cash Paid Per Share of Acquired Company, Stockholders Holding 100 or More Shares | $ / shares $ 7.20              
Business Acquisition, Cash Paid Per Share of Acquired Company, Holding Less Than 100 Shares | $ / shares $ 16              
Business Acquisition, Number of Shares Given Per Share of Acquired Company, Less Than 100 Shares | shares 0              
Business Acquisition, Fractional Shares Multiplier | $ / shares $ 43.01              
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares 416,478              
Payments to Acquire Businesses, Net of Cash Acquired, Total $ 15,743 $ 15,700            
Business Combination, Consideration Transferred, Total $ 33,235 33,200            
Business Acquisition, Transaction Costs   $ 2,100            
Number of Banking Centers   22            
AJS Bancorp, Inc [Member] | Maximum [Member]                
Business Acquisition, Number of Held Shares of Acquired Company | shares 100