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Capital Ratios (Tables) | 12 Months Ended
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Dec. 31, 2018
Capital [Abstract] |
Schedule of compliance with regulatory capital requirements under banking regulations | The following table indicates the capital ratios for PNB and Park at December 31, 2018 and 2017.
| As of December 31, 2018
| Leverage |  | Tier 1 Risk-Based |  | Common Equity Tier 1 |  | Total Risk-Based
PNB | 8.29 | % |  | 11.01 | % |  | 11.01 | % |  | 12.30 | %
Park | 10.04 | % |  | 13.30 | % |  | 13.04 | % |  | 14.19 | %
Adequately capitalized ratio | 4.00 | % |  | 6.00 | % |  | 4.50 | % |  | 8.00 | %
Adequately capitalized ratio plus capital conservation buffer | 4.00 | % |  | 8.50 | % |  | 7.00 | % |  | 10.50 | %
Well-capitalized ratio - PNB | 5.00 | % |  | 8.00 | % |  | 6.50 | % |  | 10.00 | %
Well-capitalized ratio - Park | N/A |  |  | 6.00 | % |  | N/A |  |  | 10.00 | %
| As of December 31, 2017
| Leverage |  | Tier 1 Risk-Based |  | Common Equity Tier 1 |  | Total Risk-Based
PNB | 7.36 | % |  | 10.35 | % |  | 10.35 | % |  | 11.60 | %
Park | 9.44 | % |  | 13.22 | % |  | 12.94 | % |  | 14.14 | %
Adequately capitalized ratio | 4.00 | % |  | 6.00 | % |  | 4.50 | % |  | 8.00 | %
Adequately capitalized ratio plus capital conservation buffer | 4.00 | % |  | 8.50 | % |  | 7.00 | % |  | 10.50 | %
Well-capitalized ratio - PNB | 5.00 | % |  | 8.00 | % |  | 6.50 | % |  | 10.00 | %
Well-capitalized ratio - Park | N/A |  |  | 6.00 | % |  | N/A |  |  | 10.00 | %
Schedule of various measures of capital ratio | The following table reflects various measures of capital for Park and PNB:
|  |  |  |  |  | To Be Adequately Capitalized |  | To Be Well-Capitalized
(In thousands) |  | Actual Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio
At December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Total Risk-Based Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |
PNB |  | $ | 709,101 |  |  | 12.30 | % |  | $ | 461,293 |  |  | 8.00 | % |  | $ | 576,617 |  |  | 10.00 | %
Park |  | 826,006 |  |  | 14.19 | % |  | 465,732 |  |  | 8.00 | % |  | 582,166 |  |  | 10.00 | %
Tier 1 Risk-Based Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |
PNB |  | $ | 634,909 |  |  | 11.01 | % |  | $ | 345,970 |  |  | 6.00 | % |  | $ | 461,293 |  |  | 8.00 | %
Park |  | 774,369 |  |  | 13.30 | % |  | 349,299 |  |  | 6.00 | % |  | 349,299 |  |  | 6.00 | %
Leverage Ratio (to average total assets) |  |  |  |  |  |  |  |  |  |  |  |
PNB |  | $ | 634,909 |  |  | 8.29 | % |  | $ | 306,485 |  |  | 4.00 | % |  | $ | 383,106 |  |  | 5.00 | %
Park |  | 774,369 |  |  | 10.04 | % |  | 308,397 |  |  | 4.00 | % |  | N/A |  |  | N/A |
Common Equity Tier 1 (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |
PNB |  | $ | 634,909 |  |  | 11.01 | % |  | $ | 259,478 |  |  | 4.50 | % |  | $ | 374,801 |  |  | 6.50 | %
Park |  | 759,369 |  |  | 13.04 | % |  | 261,975 |  |  | 4.50 | % |  | N/A |  |  | N/A |
At December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Total Risk-Based Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |
PNB |  | $ | 628,440 |  |  | 11.60 | % |  | $ | 433,406 |  |  | 8.00 | % |  | $ | 541,757 |  |  | 10.00 | %
Park |  | 775,867 |  |  | 14.14 | % |  | 438,981 |  |  | 8.00 | % |  | 548,726 |  |  | 10.00 | %
Tier 1 Risk-Based Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |
PNB |  | $ | 560,530 |  |  | 10.35 | % |  | $ | 325,054 |  |  | 6.00 | % |  | $ | 433,406 |  |  | 8.00 | %
Park |  | 725,221 |  |  | 13.22 | % |  | 329,235 |  |  | 6.00 | % |  | 329,235 |  |  | 6.00 | %
Leverage Ratio (to average total assets) |  |  |  |  |  |  |  |  |  |  |  |
PNB |  | $ | 560,530 |  |  | 7.36 | % |  | $ | 304,722 |  |  | 4.00 | % |  | $ | 380,903 |  |  | 5.00 | %
Park |  | 725,221 |  |  | 9.44 | % |  | 307,441 |  |  | 4.00 | % |  | N/A |  |  | N/A |
Common Equity Tier 1 (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |
PNB |  | 560,530 |  |  | 10.35 | % |  | 243,791 |  |  | 4.50 | % |  | 352,142 |  |  | 6.50 | %
Park |  | 710,221 |  |  | 12.94 | % |  | 246,927 |  |  | 4.50 | % |  | N/A |  |  | N/A |

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