Regulatory Matters (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2017	Dec. 31, 2016
Total capital (to risk weighted assets)
Actual - Amount	$ 424,950	$ 413,666
Actual - Ratio	12.30%	11.80%
For Capital Adequacy Purposes - Amount	$ 276,065	$ 280,104
For Capital Adequacy Purposes - Ratio	8.00%	8.00%
Tier 1 capital (to risk weighted assets)
Actual - Amount	$ 358,340	$ 352,371
Actual - Ratio	10.40%	10.10%
For Capital Adequacy Purposes - Amount	$ 207,048	$ 210,078
For Capital Adequacy Purposes - Ratio	6.00%	6.00%
Common equity tier 1 capital
Actual - Amount	$ 345,293	$ 339,430
Actual - Ratio	10.00%	9.70%
Common Equity Tier One Capital Required For Capital Adequacy	$ 155,286	$ 157,559
For Capital Adequacy Purposes - Ratio	4.5	4.5
Tier 1 capital (to average assets)
Actual - Amount	$ 358,340	$ 352,371
Actual - Ratio	9.10%	9.10%
For Capital Adequacy Purposes - Amount	$ 156,966	$ 155,271
For Capital Adequacy Purposes - Ratio	4.00%	4.00%
Dividends paid	$ 0	$ 0
The Bank
Total capital (to risk weighted assets)
Actual - Amount	$ 383,293	$ 371,833
Actual - Ratio	11.20%	10.80%
For Capital Adequacy Purposes - Amount	$ 272,898	$ 276,144
For Capital Adequacy Purposes - Ratio	8.00%	8.00%
To be Categorized as Well Capitalized under Prompt Corrective Action Provisions - Amount	$ 341,123	$ 345,180
To be Categorized as Well Capitalized under Prompt Corrective Action Provisions - Ratio	10.00%	10.00%
Tier 1 capital (to risk weighted assets)
Actual - Amount	$ 355,284	$ 344,423
Actual - Ratio	10.40%	10.00%
For Capital Adequacy Purposes - Amount	$ 204,674	$ 207,108
For Capital Adequacy Purposes - Ratio	6.00%	6.00%
To be Categorized as Well Capitalized under Prompt Corrective Action Provisions - Amount	$ 272,898	$ 276,144
To be Categorized as Well Capitalized under Prompt Corrective Action Provisions - Ratio	8.00%	8.00%
Common equity tier 1 capital
Actual - Amount	$ 355,284	$ 344,423
Actual - Ratio	10.40%	10.00%
Common Equity Tier One Capital Required For Capital Adequacy	$ 153,505	$ 155,331
For Capital Adequacy Purposes - Ratio	4.5	4.5
To be Categorized as Well Capitalized under Prompt Corrective Action Provisions - Amount	$ 221,730	$ 224,367
Common Equity Tier One Capital Required To Be Well Capitalized Ratio	6.50%	6.50%
Tier 1 capital (to average assets)
Actual - Amount	$ 355,284	$ 344,423
Actual - Ratio	9.10%	9.00%
For Capital Adequacy Purposes - Amount	$ 155,538	$ 154,946
For Capital Adequacy Purposes - Ratio	4.00%	4.00%
To be Categorized as Well Capitalized under Prompt Corrective Action Provisions - Amount	$ 194,423	$ 193,682
To be Categorized as Well Capitalized under Prompt Corrective Action Provisions - Ratio	5.00%	5.00%

Common equity tier 1 capital as defined in the regulations.

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The amount of total capital as defined in the regulations.

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The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The amount of Total Capital required to be categorized as well as capitalized under the regulatory framework for prompt corrective action.

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The Total risk based capital ratio (total capital divided by risk weighted assets) required to be categorized as "well capitalized", in the regulatory framework for prompt corrective action.

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Total Capital divided by risk weighted assets as defined in the regulations.

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Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

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Tier 1 Leverage Capital as defined in the regulations. Also called Core Capital.

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Tier 1 Risk Based Capital as defined in the regulations.

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The amount of Tier 1 Risk Based Capital required to be categorized as well capitalized under the regulatory framework for prompt corrective action.

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Tier 1 capital divided by risk weighted assets as defined by regulations.

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