ServisFirst Bancshares, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Note 21 - Fair Value Measurement - Financial Assets and Financial Liabilities Carried at Fair Value on a Recurring Basis (Details)

Note 21 - Fair Value Measurement - Financial Assets and Financial Liabilities Carried at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt securities available for sale	$ 759,399	$ 590,184
US Treasury Securities [Member]
Debt securities available for sale	49,210	58,428
US Government Agencies Debt Securities [Member]
Debt securities available for sale	18,386	18,565
Collateralized Mortgage Backed Securities [Member]
Debt securities available for sale	474,054	304,304
US States and Political Subdivisions Debt Securities [Member]
Debt securities available for sale	57,272	105,994
Corporate Debt Securities [Member]
Debt securities available for sale	160,477	102,893
Fair Value, Recurring [Member]
Debt securities available for sale	759,399	590,184
Fair Value, Recurring [Member] \| US Treasury Securities [Member]
Debt securities available for sale	49,210	58,428
Fair Value, Recurring [Member] \| US Government Agencies Debt Securities [Member]
Debt securities available for sale	18,386	18,565
Fair Value, Recurring [Member] \| Collateralized Mortgage Backed Securities [Member]
Debt securities available for sale	474,054	304,304
Fair Value, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member]
Debt securities available for sale	57,272	105,994
Fair Value, Recurring [Member] \| Corporate Debt Securities [Member]
Debt securities available for sale	160,477	102,893
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Recurring [Member]
Debt securities available for sale	0	0
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Recurring [Member] \| US Treasury Securities [Member]
Debt securities available for sale	0	0
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Recurring [Member] \| Collateralized Mortgage Backed Securities [Member]
Debt securities available for sale	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	0	0
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Recurring [Member] \| Corporate Debt Securities [Member]
Debt securities available for sale	0	0
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Recurring [Member]
Debt securities available for sale	752,803	583,666
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Recurring [Member] \| US Treasury Securities [Member]
Debt securities available for sale	49,210	58,428
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Recurring [Member] \| US Government Agencies Debt Securities [Member]
Debt securities available for sale	18,386	18,565
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Recurring [Member] \| Collateralized Mortgage Backed Securities [Member]
Debt securities available for sale	474,054	304,304
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Recurring [Member] \| US States and Political Subdivisions Debt Securities [Member]
Debt securities available for sale	57,272	105,994
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Recurring [Member] \| Corporate Debt Securities [Member]
Debt securities available for sale	153,881	96,375
Fair Value, Inputs, Level 3 [Member]
Debt securities available for sale	6,596	6,518
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Recurring [Member]
Debt securities available for sale	6,596	6,518
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Recurring [Member] \| US Treasury Securities [Member]
Debt securities available for sale	0	0
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Recurring [Member] \| Collateralized Mortgage Backed Securities [Member]
Debt securities available for sale	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	0	0
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Recurring [Member] \| Corporate Debt Securities [Member]
Debt securities available for sale	$ 6,596	$ 6,518