Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Acquisition Activity (Details Textual)

v3.19.3
Note 3 - Acquisition Activity (Details Textual)
$ / shares in Units, $ in Thousands
 9 Months Ended
Jan. 24, 2019
USD ($)
$ / shares
shares
Jul. 26, 2018
USD ($)
$ / shares
shares
Jul. 25, 2018
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 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 100 100          
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            
Business Combination, Consideration Transferred, Total $ 33,235            
Business Acquisition, Transaction Costs       $ 2,100      
Number of Banking Centers 22            
AJS Bancorp, Inc [Member] | Minimum [Member]              
Business Acquisition, Number of Held Shares of Acquired Company | shares 100