REGULATORY CAPITAL MATTERS - Actual and Required Capital (Details) $ in Thousands	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Total Capital
Capital	$ 749,413	$ 722,010
Capital to Risk Weighted Assets	0.1547	0.1608
Capital Required for Capital Adequacy	$ 387,425	$ 359,214
Capital Required for Capital Adequacy to Risk Weighted Assets	0.0800	0.0800
Plus Capital Conservation Buffer	$ 508,495	$ 471,468
Plus Capital Conservation Buffer to Risk Weighted Assets	0.1050	0.1050
Common Equity Tier 1 Capital
Common Equity Tier 1 Risk Based Capital	$ 583,998	$ 559,926
Common Equity Tier 1 Risk Based Capital to Risk Weighted Assets	0.1206	0.1247
Common Equity Tier 1 Risk Based Capital Required for Capital Adequacy	$ 217,926	$ 202,058
Common Equity Tier 1 Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	0.0450	0.0450
Plus Common Equity Tier 1 Risk Based Capital	$ 338,997	$ 314,312
Plus Common Equity Tier 1 Risk Based Capital to Risk Weighted Assets	0.0700	0.0700
Tier 1 Capital
Tier 1 Risk Based Capital	$ 593,808	$ 569,678
Tier 1 Risk Based Capital to Risk Weighted Assets	0.1226	0.1269
Tier 1 Risk Based Capital Required for Capital Adequacy	$ 290,568	$ 269,410
Tier 1 Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	0.0600	0.0600
Plus Tier 1 Risk Based Capital	$ 411,639	$ 381,665
Plus Tier 1 Risk Based Capital to Risk Weighted Assets	0.0850	0.0850
Tier 1 Capital
Tier 1 Leverage Capital	$ 593,808	$ 569,678
Tier 1 Leverage Capital to Average Assets	0.0865	0.0853
Tier 1 Leverage Capital Required for Capital Adequacy	$ 274,625	$ 267,286
Tier 1 Leverage Capital Required for Capital Adequacy to Average Assets	0.0400	0.0400
Plus Tier 1 Leverage Capital	$ 274,625	$ 267,286
Plus Tier 1 Leverage Capital to Average Assets	0.0400	0.0400
Allegiance Bank
Total Capital
Capital	$ 701,552	$ 659,596
Capital to Risk Weighted Assets	0.1450	0.1471
Capital Required for Capital Adequacy	$ 386,953	$ 358,793
Capital Required for Capital Adequacy to Risk Weighted Assets	0.0800	0.0800
Plus Capital Conservation Buffer	$ 507,876	$ 470,916
Plus Capital Conservation Buffer to Risk Weighted Assets	0.1050	0.1050
Capital Required to be Well Capitalized	$ 483,691	$ 448,491
Capital Required to be Well Capitalized to Risk Weighted Assets	0.1000	0.1000
Common Equity Tier 1 Capital
Common Equity Tier 1 Risk Based Capital	$ 605,306	$ 566,483
Common Equity Tier 1 Risk Based Capital to Risk Weighted Assets	0.1251	0.1263
Common Equity Tier 1 Risk Based Capital Required for Capital Adequacy	$ 217,661	$ 201,821
Common Equity Tier 1 Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	0.0450	0.0450
Plus Common Equity Tier 1 Risk Based Capital	$ 338,584	$ 313,944
Plus Common Equity Tier 1 Risk Based Capital to Risk Weighted Assets	0.0700	0.0700
Common Equity Tier 1 Risk Based Capital Required to be Well Capitalized	$ 314,399	$ 291,519
Common Equity Tier 1 Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	0.0650	0.0650
Tier 1 Capital
Tier 1 Risk Based Capital	$ 605,306	$ 566,483
Tier 1 Risk Based Capital to Risk Weighted Assets	0.1251	0.1263
Tier 1 Risk Based Capital Required for Capital Adequacy	$ 290,215	$ 269,095
Tier 1 Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	0.0600	0.0600
Plus Tier 1 Risk Based Capital	$ 411,138	$ 381,217
Plus Tier 1 Risk Based Capital to Risk Weighted Assets	0.0850	0.0850
Tier 1 Risk Based Capital Required to be Well Capitalized	$ 386,953	$ 358,793
Tier 1 Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	0.0800	0.0800
Tier 1 Capital
Tier 1 Leverage Capital	$ 605,306	$ 566,483
Tier 1 Leverage Capital to Average Assets	0.0883	0.0849
Tier 1 Leverage Capital Required for Capital Adequacy	$ 274,249	$ 266,944
Tier 1 Leverage Capital Required for Capital Adequacy to Average Assets	0.0400	0.0400
Plus Tier 1 Leverage Capital	$ 274,249	$ 266,944
Plus Tier 1 Leverage Capital to Average Assets	0.0400	0.0400
Tier 1 Leverage Capital Required to be Well Capitalized	$ 342,811	$ 333,680
Tier 1 Leverage Capital Required to be Well Capitalized to Average Assets	0.0500	0.0500

Allegiance Bancshares, Inc. 10-Q