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Regulations and Supervision (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 USD ($) | Dec. 31, 2018 USD ($) banking_office | Dec. 31, 2018 USD ($) subsidiary_bank | Dec. 31, 2018 USD ($) subsidiary_trust | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |  |  |  |
Reclassification from accumulated other comprehensive income (loss) to retained earnings | $ 0 |  |  |  | $ 9,958 | $ 0
Number of subsidiary banks |  | 4 | 3 | 4 |  |
Castile |  |  |  |  |  |
Total Capital (to risk-weighted assets) |  |  |  |  |  |
Total Capital (to risk-weighted assets), Actual Amount | $ 138,816 | $ 138,816 | $ 138,816 | $ 138,816 | $ 125,510 |
Total Capital (to risk-weighted assets), Actual Ratio | 11.70% | 11.70% | 11.70% | 11.70% | 11.30% |
Total Capital (to risk-weighted assets), Required to be Adequately Capitalized, Amount | $ 124,738 | $ 124,738 | $ 124,738 | $ 124,738 | $ 117,042 |
Total Capital (to risk-weighted assets), Required to be Adequately Capitalized, Ratio | 10.50% | 10.50% | 10.50% | 10.50% | 10.50% |
Total Capital (to risk-weighted assets), Required to be Well Capitalized, Amount | $ 118,798 | $ 118,798 | $ 118,798 | $ 118,798 | $ 111,469 |
Total Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio | 10.00% | 10.00% | 10.00% | 10.00% | 10.00% |
Common EquityTier 1 Capital (to risk-weighted assets) |  |  |  |  |  |
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Amount | $ 129,482 | $ 129,482 | $ 129,482 | $ 129,482 | $ 116,783 |
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Ratio | 10.90% | 10.90% | 10.90% | 10.90% | 10.50% |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Amount | $ 83,159 | $ 83,159 | $ 83,159 | $ 83,159 | $ 78,028 |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Ratio | 7.00% | 7.00% | 7.00% | 7.00% | 7.00% |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Amount | $ 77,219 | $ 77,219 | $ 77,219 | $ 77,219 | $ 72,455 |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio | 6.50% | 6.50% | 6.50% | 6.50% | 6.50% |
Tier 1 Capital (to risk-weighted assets) |  |  |  |  |  |
Tier 1 Capital (to risk-weighted assets), Actual Amount | $ 129,482 | $ 129,482 | $ 129,482 | $ 129,482 | $ 116,783 |
Tier 1 Capital (to risk-weighted assets), Actual Ratio | 10.90% | 10.90% | 10.90% | 10.90% | 10.50% |
Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Amount | $ 100,978 | $ 100,978 | $ 100,978 | $ 100,978 | $ 94,748 |
Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Ratio | 8.50% | 8.50% | 8.50% | 8.50% | 8.50% |
Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Amount | $ 95,038 | $ 95,038 | $ 95,038 | $ 95,038 | $ 89,175 |
Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio | 8.00% | 8.00% | 8.00% | 8.00% | 8.00% |
Tier 1 Capital (to average assets) |  |  |  |  |  |
Tier 1 Capital (to average assets), Actual Amount | $ 129,482 | $ 129,482 | $ 129,482 | $ 129,482 | $ 116,783 |
Tier 1 Capital (to average assets), Actual Ratio | 8.60% | 8.60% | 8.60% | 8.60% | 8.10% |
Tier 1 Capital (to average assets), Required to be Adequately Capitalized, Amount | $ 60,368 | $ 60,368 | $ 60,368 | $ 60,368 | $ 57,833 |
Tier 1 Capital (to average assets), Required to be Adequately Capitalized, Ratio | 4.00% | 4.00% | 4.00% | 4.00% | 4.00% |
Tier 1 Capital (to average assets), Required to be Well Capitalized, Amount | $ 75,460 | $ 75,460 | $ 75,460 | $ 75,460 | $ 72,292 |
Tier 1 Capital (to average assets), Required to be Well Capitalized, Ratio | 5.00% | 5.00% | 5.00% | 5.00% | 5.00% |
Mahopac |  |  |  |  |  |
Total Capital (to risk-weighted assets) |  |  |  |  |  |
Total Capital (to risk-weighted assets), Actual Amount | $ 126,342 | $ 126,342 | $ 126,342 | $ 126,342 | $ 117,740 |
Total Capital (to risk-weighted assets), Actual Ratio | 12.70% | 12.70% | 12.70% | 12.70% | 12.10% |
Total Capital (to risk-weighted assets), Required to be Adequately Capitalized, Amount | $ 104,146 | $ 104,146 | $ 104,146 | $ 104,146 | $ 102,555 |
Total Capital (to risk-weighted assets), Required to be Adequately Capitalized, Ratio | 10.50% | 10.50% | 10.50% | 10.50% | 10.50% |
Total Capital (to risk-weighted assets), Required to be Well Capitalized, Amount | $ 99,186 | $ 99,186 | $ 99,186 | $ 99,186 | $ 97,672 |
Total Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio | 10.00% | 10.00% | 10.00% | 10.00% | 10.00% |
Common EquityTier 1 Capital (to risk-weighted assets) |  |  |  |  |  |
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Amount | $ 114,327 | $ 114,327 | $ 114,327 | $ 114,327 | $ 105,979 |
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Ratio | 11.50% | 11.50% | 11.50% | 11.50% | 10.90% |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Amount | $ 69,431 | $ 69,431 | $ 69,431 | $ 69,431 | $ 68,370 |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Ratio | 7.00% | 7.00% | 7.00% | 7.00% | 7.00% |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Amount | $ 64,471 | $ 64,471 | $ 64,471 | $ 64,471 | $ 63,487 |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio | 6.50% | 6.50% | 6.50% | 6.50% | 6.50% |
Tier 1 Capital (to risk-weighted assets) |  |  |  |  |  |
Tier 1 Capital (to risk-weighted assets), Actual Amount | $ 114,327 | $ 114,327 | $ 114,327 | $ 114,327 | $ 105,979 |
Tier 1 Capital (to risk-weighted assets), Actual Ratio | 11.50% | 11.50% | 11.50% | 11.50% | 10.90% |
Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Amount | $ 84,309 | $ 84,309 | $ 84,309 | $ 84,309 | $ 83,021 |
Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Ratio | 8.50% | 8.50% | 8.50% | 8.50% | 8.50% |
Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Amount | $ 79,349 | $ 79,349 | $ 79,349 | $ 79,349 | $ 78,137 |
Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio | 8.00% | 8.00% | 8.00% | 8.00% | 8.00% |
Tier 1 Capital (to average assets) |  |  |  |  |  |
Tier 1 Capital (to average assets), Actual Amount | $ 114,327 | $ 114,327 | $ 114,327 | $ 114,327 | $ 105,979 |
Tier 1 Capital (to average assets), Actual Ratio | 8.40% | 8.40% | 8.40% | 8.40% | 8.10% |
Tier 1 Capital (to average assets), Required to be Adequately Capitalized, Amount | $ 54,219 | $ 54,219 | $ 54,219 | $ 54,219 | $ 52,463 |
Tier 1 Capital (to average assets), Required to be Adequately Capitalized, Ratio | 4.00% | 4.00% | 4.00% | 4.00% | 4.00% |
Tier 1 Capital (to average assets), Required to be Well Capitalized, Amount | $ 67,773 | $ 67,773 | $ 67,773 | $ 67,773 | $ 65,578 |
Tier 1 Capital (to average assets), Required to be Well Capitalized, Ratio | 5.00% | 5.00% | 5.00% | 5.00% | 5.00% |
VIST |  |  |  |  |  |
Total Capital (to risk-weighted assets) |  |  |  |  |  |
Total Capital (to risk-weighted assets), Actual Amount | $ 158,557 | $ 158,557 | $ 158,557 | $ 158,557 | $ 148,185 |
Total Capital (to risk-weighted assets), Actual Ratio | 11.70% | 11.70% | 11.70% | 11.70% | 11.40% |
Total Capital (to risk-weighted assets), Required to be Adequately Capitalized, Amount | $ 142,048 | $ 142,048 | $ 142,048 | $ 142,048 | $ 136,518 |
Total Capital (to risk-weighted assets), Required to be Adequately Capitalized, Ratio | 10.50% | 10.50% | 10.50% | 10.50% | 10.50% |
Total Capital (to risk-weighted assets), Required to be Well Capitalized, Amount | $ 135,284 | $ 135,284 | $ 135,284 | $ 135,284 | $ 130,017 |
Total Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio | 10.00% | 10.00% | 10.00% | 10.00% | 10.00% |
Common EquityTier 1 Capital (to risk-weighted assets) |  |  |  |  |  |
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Amount | $ 146,131 | $ 146,131 | $ 146,131 | $ 146,131 | $ 138,901 |
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Ratio | 10.80% | 10.80% | 10.80% | 10.80% | 10.70% |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Amount | $ 94,699 | $ 94,699 | $ 94,699 | $ 94,699 | $ 91,012 |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Ratio | 7.00% | 7.00% | 7.00% | 7.00% | 7.00% |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Amount | $ 87,934 | $ 87,934 | $ 87,934 | $ 87,934 | $ 84,511 |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio | 6.50% | 6.50% | 6.50% | 6.50% | 6.50% |
Tier 1 Capital (to risk-weighted assets) |  |  |  |  |  |
Tier 1 Capital (to risk-weighted assets), Actual Amount | $ 146,131 | $ 146,131 | $ 146,131 | $ 146,131 | $ 138,901 |
Tier 1 Capital (to risk-weighted assets), Actual Ratio | 10.80% | 10.80% | 10.80% | 10.80% | 10.70% |
Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Amount | $ 114,991 | $ 114,991 | $ 114,991 | $ 114,991 | $ 110,515 |
Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Ratio | 8.50% | 8.50% | 8.50% | 8.50% | 8.50% |
Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Amount | $ 108,227 | $ 108,227 | $ 108,227 | $ 108,227 | $ 104,014 |
Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio | 8.00% | 8.00% | 8.00% | 8.00% | 8.00% |
Tier 1 Capital (to average assets) |  |  |  |  |  |
Tier 1 Capital (to average assets), Actual Amount | $ 146,131 | $ 146,131 | $ 146,131 | $ 146,131 | $ 138,901 |
Tier 1 Capital (to average assets), Actual Ratio | 8.80% | 8.80% | 8.80% | 8.80% | 8.60% |
Tier 1 Capital (to average assets), Required to be Adequately Capitalized, Amount | $ 66,282 | $ 66,282 | $ 66,282 | $ 66,282 | $ 64,647 |
Tier 1 Capital (to average assets), Required to be Adequately Capitalized, Ratio | 4.00% | 4.00% | 4.00% | 4.00% | 4.00% |
Tier 1 Capital (to average assets), Required to be Well Capitalized, Amount | $ 82,853 | $ 82,853 | $ 82,853 | $ 82,853 | $ 80,809 |
Tier 1 Capital (to average assets), Required to be Well Capitalized, Ratio | 5.00% | 5.00% | 5.00% | 5.00% | 5.00% |
The Company (consolidated) |  |  |  |  |  |
Total Capital (to risk-weighted assets) |  |  |  |  |  |
Total Capital (to risk-weighted assets), Actual Amount | $ 645,891 | $ 645,891 | $ 645,891 | $ 645,891 | $ 585,013 |
Total Capital (to risk-weighted assets), Actual Ratio | 13.10% | 13.10% | 13.10% | 13.10% | 12.30% |
Total Capital (to risk-weighted assets), Required to be Adequately Capitalized, Amount | $ 517,500 | $ 517,500 | $ 517,500 | $ 517,500 | $ 500,676 |
Total Capital (to risk-weighted assets), Required to be Adequately Capitalized, Ratio | 10.50% | 10.50% | 10.50% | 10.50% | 10.50% |
Total Capital (to risk-weighted assets), Required to be Well Capitalized, Amount | $ 492,857 | $ 492,857 | $ 492,857 | $ 492,857 | $ 476,835 |
Total Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio | 10.00% | 10.00% | 10.00% | 10.00% | 10.00% |
Common EquityTier 1 Capital (to risk-weighted assets) |  |  |  |  |  |
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Amount | $ 583,458 | $ 583,458 | $ 583,458 | $ 583,458 | $ 526,822 |
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Ratio | 11.80% | 11.80% | 11.80% | 11.80% | 11.10% |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Amount | $ 345,000 | $ 345,000 | $ 345,000 | $ 345,000 | $ 333,784 |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Ratio | 7.00% | 7.00% | 7.00% | 7.00% | 7.00% |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Amount | $ 320,357 | $ 320,357 | $ 320,357 | $ 320,357 | $ 309,943 |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio | 6.50% | 6.50% | 6.50% | 6.50% | 6.50% |
Tier 1 Capital (to risk-weighted assets) |  |  |  |  |  |
Tier 1 Capital (to risk-weighted assets), Actual Amount | $ 600,321 | $ 600,321 | $ 600,321 | $ 600,321 | $ 543,514 |
Tier 1 Capital (to risk-weighted assets), Actual Ratio | 12.20% | 12.20% | 12.20% | 12.20% | 11.40% |
Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Amount | $ 418,929 | $ 418,929 | $ 418,929 | $ 418,929 | $ 405,310 |
Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Ratio | 8.50% | 8.50% | 8.50% | 8.50% | 8.50% |
Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Amount | $ 394,286 | $ 394,286 | $ 394,286 | $ 394,286 | $ 381,468 |
Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio | 8.00% | 8.00% | 8.00% | 8.00% | 8.00% |
Tier 1 Capital (to average assets) |  |  |  |  |  |
Tier 1 Capital (to average assets), Actual Amount | $ 600,321 | $ 600,321 | $ 600,321 | $ 600,321 | $ 543,514 |
Tier 1 Capital (to average assets), Actual Ratio | 9.10% | 9.10% | 9.10% | 9.10% | 8.40% |
Tier 1 Capital (to average assets), Required to be Adequately Capitalized, Amount | $ 265,465 | $ 265,465 | $ 265,465 | $ 265,465 | $ 257,887 |
Tier 1 Capital (to average assets), Required to be Adequately Capitalized, Ratio | 4.00% | 4.00% | 4.00% | 4.00% | 4.00% |
Tier 1 Capital (to average assets), Required to be Well Capitalized, Amount | $ 331,832 | $ 331,832 | $ 331,832 | $ 331,832 | $ 322,359 |
Tier 1 Capital (to average assets), Required to be Well Capitalized, Ratio | 5.00% | 5.00% | 5.00% | 5.00% | 5.00% |
Trust Company |  |  |  |  |  |
Total Capital (to risk-weighted assets) |  |  |  |  |  |
Total Capital (to risk-weighted assets), Actual Amount | $ 191,872 | $ 191,872 | $ 191,872 | $ 191,872 | $ 171,774 |
Total Capital (to risk-weighted assets), Actual Ratio | 13.90% | 13.90% | 13.90% | 13.90% | 12.50% |
Total Capital (to risk-weighted assets), Required to be Adequately Capitalized, Amount | $ 144,822 | $ 144,822 | $ 144,822 | $ 144,822 | $ 144,235 |
Total Capital (to risk-weighted assets), Required to be Adequately Capitalized, Ratio | 10.50% | 10.50% | 10.50% | 10.50% | 10.50% |
Total Capital (to risk-weighted assets), Required to be Well Capitalized, Amount | $ 137,926 | $ 137,926 | $ 137,926 | $ 137,926 | $ 137,366 |
Total Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio | 10.00% | 10.00% | 10.00% | 10.00% | 10.00% |
Common EquityTier 1 Capital (to risk-weighted assets) |  |  |  |  |  |
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Amount | $ 180,077 | $ 180,077 | $ 180,077 | $ 180,077 | $ 160,047 |
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Ratio | 13.10% | 13.10% | 13.10% | 13.10% | 11.70% |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Amount | $ 96,548 | $ 96,548 | $ 96,548 | $ 96,548 | $ 96,156 |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Ratio | 7.00% | 7.00% | 7.00% | 7.00% | 7.00% |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Amount | $ 89,652 | $ 89,652 | $ 89,652 | $ 89,652 | $ 89,288 |
Common Equity Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio | 6.50% | 6.50% | 6.50% | 6.50% | 6.50% |
Tier 1 Capital (to risk-weighted assets) |  |  |  |  |  |
Tier 1 Capital (to risk-weighted assets), Actual Amount | $ 180,077 | $ 180,077 | $ 180,077 | $ 180,077 | $ 160,047 |
Tier 1 Capital (to risk-weighted assets), Actual Ratio | 13.10% | 13.10% | 13.10% | 13.10% | 11.70% |
Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Amount | $ 117,237 | $ 117,237 | $ 117,237 | $ 117,237 | $ 116,761 |
Tier 1 Capital (to risk-weighted assets), Required to be Adequately Capitalized, Ratio | 8.50% | 8.50% | 8.50% | 8.50% | 8.50% |
Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Amount | $ 110,341 | $ 110,341 | $ 110,341 | $ 110,341 | $ 109,893 |
Tier 1 Capital (to risk-weighted assets), Required to be Well Capitalized, Ratio | 8.00% | 8.00% | 8.00% | 8.00% | 8.00% |
Tier 1 Capital (to average assets) |  |  |  |  |  |
Tier 1 Capital (to average assets), Actual Amount | $ 180,077 | $ 180,077 | $ 180,077 | $ 180,077 | $ 160,047 |
Tier 1 Capital (to average assets), Actual Ratio | 8.50% | 8.50% | 8.50% | 8.50% | 7.80% |
Tier 1 Capital (to average assets), Required to be Adequately Capitalized, Amount | $ 84,592 | $ 84,592 | $ 84,592 | $ 84,592 | $ 82,425 |
Tier 1 Capital (to average assets), Required to be Adequately Capitalized, Ratio | 4.00% | 4.00% | 4.00% | 4.00% | 4.00% |
Tier 1 Capital (to average assets), Required to be Well Capitalized, Amount | $ 105,740 | $ 105,740 | $ 105,740 | $ 105,740 | $ 103,031 |
Tier 1 Capital (to average assets), Required to be Well Capitalized, Ratio | 5.00% | 5.00% | 5.00% | 5.00% | 5.00% |
Retained Earnings |  |  |  |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |  |  |  |
Reclassification from accumulated other comprehensive income (loss) to retained earnings | $ 10,000 |  |  |  |  |

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- Definition The amount of Total Capital required to be categorized as well as capitalized under the regulatory framework for prompt corrective action. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958568-112826 + Details
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- Definition Total Capital divided by risk weighted assets as defined in the regulations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958568-112826 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84167132&loc=d3e65071-112826 + Details
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- Definition Tier 1 Leverage Capital as defined in the regulations. Also called Core Capital. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958568-112826 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84167132&loc=d3e65071-112826 + Details
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