Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Fair Value Measurement - Financial Assets and Financial Liabilities Carried at Fair Value on a Recurring Basis (Details)

v3.20.2
Note 11 - Fair Value Measurement - Financial Assets and Financial Liabilities Carried at Fair Value on a Recurring Basis (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Debt Securities, Available-for-sale, Total $ 856,128 $ 759,399 [1]
Total assets at fair value 68,943 41,522
US Treasury Securities [Member]    
Debt Securities, Available-for-sale, Total 40,582 49,210
US Government Agencies Debt Securities [Member]    
Debt Securities, Available-for-sale, Total 15,575 18,386
Collateralized Mortgage Backed Securities [Member]    
Debt Securities, Available-for-sale, Total 517,036 474,054
US States and Political Subdivisions Debt Securities [Member]    
Debt Securities, Available-for-sale, Total 45,577 57,272
Corporate Debt Securities [Member]    
Debt Securities, Available-for-sale, Total 237,358 160,477
Fair Value, Recurring [Member]    
Debt Securities, Available-for-sale, Total 856,128 759,399
Total assets at fair value 856,671  
Fair Value, Recurring [Member] | Interest Rate Swap [Member]    
Interest rate cap derivative 543  
Fair Value, Recurring [Member] | US Treasury Securities [Member]    
Debt Securities, Available-for-sale, Total 40,582 49,210
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member]    
Debt Securities, Available-for-sale, Total 15,575 18,386
Fair Value, Recurring [Member] | Collateralized Mortgage Backed Securities [Member]    
Debt Securities, Available-for-sale, Total 517,036 474,054
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]    
Debt Securities, Available-for-sale, Total 45,577 57,272
Fair Value, Recurring [Member] | Corporate Debt Securities [Member]    
Debt Securities, Available-for-sale, Total 237,358 160,477
Fair Value, Inputs, Level 1 [Member]    
Total assets at fair value 0 0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]    
Debt Securities, Available-for-sale, Total 0 0
Total assets at fair value 0  
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | Interest Rate Swap [Member]    
Interest rate cap derivative 0  
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | US Treasury Securities [Member]    
Debt Securities, Available-for-sale, Total 0 0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member]    
Debt Securities, Available-for-sale, Total 0 0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | Collateralized Mortgage Backed Securities [Member]    
Debt Securities, Available-for-sale, Total 0 0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]    
Debt Securities, Available-for-sale, Total 0 0
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | Corporate Debt Securities [Member]    
Debt Securities, Available-for-sale, Total 0 0
Fair Value, Inputs, Level 2 [Member]    
Total assets at fair value 0 0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]    
Debt Securities, Available-for-sale, Total 849,533 752,803
Total assets at fair value 850,076  
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Interest Rate Swap [Member]    
Interest rate cap derivative 543  
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | US Treasury Securities [Member]    
Debt Securities, Available-for-sale, Total 40,582 49,210
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member]    
Debt Securities, Available-for-sale, Total 15,575 18,386
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Collateralized Mortgage Backed Securities [Member]    
Debt Securities, Available-for-sale, Total 517,036 474,054
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]    
Debt Securities, Available-for-sale, Total 45,577 57,272
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Corporate Debt Securities [Member]    
Debt Securities, Available-for-sale, Total 230,763 153,881
Fair Value, Inputs, Level 3 [Member]    
Total assets at fair value 68,943 41,522
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member]    
Debt Securities, Available-for-sale, Total 6,595 6,596
Total assets at fair value 6,595  
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Interest Rate Swap [Member]    
Interest rate cap derivative 0  
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | US Treasury Securities [Member]    
Debt Securities, Available-for-sale, Total 0 0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member]    
Debt Securities, Available-for-sale, Total 0 0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Collateralized Mortgage Backed Securities [Member]    
Debt Securities, Available-for-sale, Total 0 0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]    
Debt Securities, Available-for-sale, Total 0 0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Corporate Debt Securities [Member]    
Debt Securities, Available-for-sale, Total $ 6,595 $ 6,596
[1] Derived from audited financial statements.