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Regulatory Capital (Tables)

3 Months Ended

Mar. 31, 2021

Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

The following tables summarize both the Corporation’s and the Bank’s capital ratios and the ratios required by their federal regulators:


						As of March 31, 2021
						Actual												Minimum Required for Capital Adequacy Purposes												For Capital Adequacy Purposes Plus Capital Conservation Buffer												Minimum Required to Be Well Capitalized Under Prompt Corrective Action Requirements
						Amount						Ratio						Amount						Ratio						Amount						Ratio						Amount						Ratio
						(Dollars in Thousands)
Total capital (to risk-weighted assets)
Consolidated						$	267,291					11.52		%				$	185,682					8.00		%				$	243,708					10.50		%				N/A						N/A
First Business Bank						260,529						11.24						185,412						8.00						243,354						10.50						231,765						10.00		%
Tier 1 capital (to risk-weighted assets)
Consolidated						$	214,510					9.24		%				$	139,262					6.00		%				$	197,288					8.50		%				N/A						N/A
First Business Bank						231,547						9.99						139,059						6.00						197,001						8.50						185,412						8.00
Common equity tier 1 capital (to risk-weighted assets)
Consolidated						$	204,445					8.81		%				$	104,446					4.50		%				$	162,472					7.00		%				N/A						N/A
First Business Bank						231,547						9.99						104,294						4.50						162,236						7.00						150,648						6.50
Tier 1 leverage capital (to adjusted assets)
Consolidated						$	214,510					8.37		%				$	102,499					4.00		%				$	102,499					4.00		%				N/A						N/A
First Business Bank						231,547						9.08						102,027						4.00						102,027						4.00						127,534						5.00


						As of December 31, 2020
						Actual												Minimum Required for Capital Adequacy Purposes												For Capital Adequacy Purposes Plus Capital Conservation Buffer												Minimum Required to Be Well Capitalized Under Prompt Corrective Action Requirements
						Amount						Ratio						Amount						Ratio						Amount						Ratio						Amount						Ratio
						(Dollars in Thousands)
Total capital (to risk-weighted assets)
Consolidated						$	258,607					11.25		%				$	183,965					8.00		%				$	241,454					10.50		%				N/A						N/A
First Business Bank						251,116						10.97						183,053						8.00						240,257						10.50						228,816						10.00		%
Tier 1 capital (to risk-weighted assets)
Consolidated						$	206,104					8.96		%				$	137,974					6.00		%				$	195,463					8.50		%				N/A						N/A
First Business Bank						222,500						9.72						137,290						6.00						194,494						8.50						183,053						8.00
Common equity tier 1 capital (to risk-weighted assets)
Consolidated						$	196,042					8.53		%				$	103,480					4.50		%				$	160,970					7.00		%				N/A						N/A
First Business Bank						222,500						9.72						102,967						4.50						160,171						7.00						148,731						6.50
Tier 1 leverage capital (to adjusted assets)
Consolidated						$	206,104					7.99		%				$	103,228					4.00		%				$	103,228					4.00		%				N/A						N/A
First Business Bank						222,500						8.67						102,635						4.00						102,635						4.00						128,294						5.00