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Regulatory Matters (Details) $ in Thousands | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Maximum Subsidiary Dividend | $ 73,600 |
Arrow |  |
Actual, Amount |  |
Total Capital (to Risk Weighted Assets) | 447,091 | $ 435,857
Tier I Capital (to Risk Weighted Assets) | 414,221 | 404,059
Tier One Capital (to Average Assets) | 414,221 | 404,059
Common Equity Tier 1 Capital (to Risk Weighted Assets) | $ 394,166 | $ 384,003
Actual, Ratio |  |
Total Capital (to Risk Weighted Assets) | 0.147 | 0.151
Tier I Capital (to Risk Weighted Assets) | 0.137 | 0.140
Tier One Leverage Capital (to Average Assets) | 0.098 | 0.098
Common Equity Tier 1 Capital (to Risk Weighted Assets) | 0.130 | 0.133
Minimum Amounts For Capital Adequacy, Amount |  |
Total Capital (to Risk Weighted Assets) | $ 319,351 | $ 303,079
Tier I Capital (to Risk Weighted Assets) | 256,998 | 245,322
Tier One Leverage Capital (to Average Assets) | 169,070 | 164,922
Common Equity Tier 1 Capital (to Risk Weighted Assets) | $ 212,243 | $ 202,107
Minimum Amounts For Capital Adequacy Purposes, Ratio |  |
Total Capital (to Risk Weighted Assets) | 0.105 | 0.105
Tier I Capital (to Risk Weighted Assets) | 0.085 | 0.085
Tier One Leverage Capital (to Average Assets) | 0.040 | 0.040
Common Equity Tier 1 Capital (to Risk Weighted Assets) | 0.070 | 0.070
Minimum Amounts To Be Well-Capitalized, Amount |  |
Total Capital (to Risk Weighted Assets) | $ 304,144 | $ 288,647
Tier I Capital (to Risk Weighted Assets) | 241,881 | 230,891
Tier One Leverage Capital (to Average Assets) | 211,337 | 206,153
Common Equity Tier 1 Leverage Capital (to Risk Weighted Assets) | $ 197,083 | $ 187,671
Minimum Amounts To Be Well-Capitalized |  |
Total Capital (to Risk Weighted Assets) | 0.100 | 0.100
Tier One Risk Based Capital (to Risk Weighted Assets) | 0.080 | 0.080
Tier One Leverage Capital (to Average Assets) | 0.050 | 0.050
Common Equity Tier 1 Capital (to Risk Weighted Assets) | 0.065 | 0.065
Glens Falls National |  |
Actual, Amount |  |
Total Capital (to Risk Weighted Assets) | $ 320,449 | $ 315,458
Tier I Capital (to Risk Weighted Assets) | 297,667 | 292,134
Tier One Capital (to Average Assets) | 297,667 | 292,134
Common Equity Tier 1 Capital (to Risk Weighted Assets) | $ 297,612 | $ 292,078
Actual, Ratio |  |
Total Capital (to Risk Weighted Assets) | 0.143 | 0.143
Tier I Capital (to Risk Weighted Assets) | 0.132 | 0.132
Tier One Leverage Capital (to Average Assets) | 0.092 | 0.090
Common Equity Tier 1 Capital (to Risk Weighted Assets) | 0.132 | 0.132
Minimum Amounts For Capital Adequacy, Amount |  |
Total Capital (to Risk Weighted Assets) | $ 235,295 | $ 231,630
Tier I Capital (to Risk Weighted Assets) | 191,680 | 188,117
Tier One Leverage Capital (to Average Assets) | 129,420 | 129,837
Common Equity Tier 1 Capital (to Risk Weighted Assets) | $ 157,825 | $ 154,890
Minimum Amounts For Capital Adequacy Purposes, Ratio |  |
Total Capital (to Risk Weighted Assets) | 0.105 | 0.105
Tier I Capital (to Risk Weighted Assets) | 0.085 | 0.085
Tier One Leverage Capital (to Average Assets) | 0.040 | 0.040
Common Equity Tier 1 Capital (to Risk Weighted Assets) | 0.070 | 0.070
Minimum Amounts To Be Well-Capitalized, Amount |  |
Total Capital (to Risk Weighted Assets) | $ 224,090 | $ 220,600
Tier I Capital (to Risk Weighted Assets) | 180,404 | 177,051
Tier One Leverage Capital (to Average Assets) | 161,776 | 162,297
Common Equity Tier 1 Leverage Capital (to Risk Weighted Assets) | $ 146,551 | $ 143,826
Minimum Amounts To Be Well-Capitalized |  |
Total Capital (to Risk Weighted Assets) | 0.100 | 0.100
Tier One Risk Based Capital (to Risk Weighted Assets) | 0.080 | 0.080
Tier One Leverage Capital (to Average Assets) | 0.050 | 0.050
Common Equity Tier 1 Capital (to Risk Weighted Assets) | 0.065 | 0.065
Saratoga National |  |
Actual, Amount |  |
Total Capital (to Risk Weighted Assets) | $ 110,510 | $ 104,279
Tier I Capital (to Risk Weighted Assets) | 100,449 | 95,891
Tier One Capital (to Average Assets) | 100,449 | 95,891
Common Equity Tier 1 Capital (to Risk Weighted Assets) | $ 100,449 | $ 95,891
Actual, Ratio |  |
Total Capital (to Risk Weighted Assets) | 0.137 | 0.155
Tier I Capital (to Risk Weighted Assets) | 0.125 | 0.143
Tier One Leverage Capital (to Average Assets) | 0.096 | 0.105
Common Equity Tier 1 Capital (to Risk Weighted Assets) | 0.125 | 0.143
Minimum Amounts For Capital Adequacy, Amount |  |
Total Capital (to Risk Weighted Assets) | $ 84,697 | $ 70,641
Tier I Capital (to Risk Weighted Assets) | 68,305 | 56,998
Tier One Leverage Capital (to Average Assets) | 41,854 | 36,530
Common Equity Tier 1 Capital (to Risk Weighted Assets) | $ 56,251 | $ 46,940
Minimum Amounts For Capital Adequacy Purposes, Ratio |  |
Total Capital (to Risk Weighted Assets) | 0.105 | 0.105
Tier I Capital (to Risk Weighted Assets) | 0.085 | 0.085
Tier One Leverage Capital (to Average Assets) | 0.040 | 0.040
Common Equity Tier 1 Capital (to Risk Weighted Assets) | 0.070 | 0.070
Minimum Amounts To Be Well-Capitalized, Amount |  |
Total Capital (to Risk Weighted Assets) | $ 80,664 | $ 67,277
Tier I Capital (to Risk Weighted Assets) | 64,287 | 53,645
Tier One Leverage Capital (to Average Assets) | 52,317 | 45,662
Common Equity Tier 1 Leverage Capital (to Risk Weighted Assets) | $ 52,233 | $ 43,587
Minimum Amounts To Be Well-Capitalized |  |
Total Capital (to Risk Weighted Assets) | 0.100 | 0.100
Tier One Risk Based Capital (to Risk Weighted Assets) | 0.080 | 0.080
Tier One Leverage Capital (to Average Assets) | 0.050 | 0.050
Common Equity Tier 1 Capital (to Risk Weighted Assets) | 0.065 | 0.065

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