Regulatory Matters (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Summary of State Bank's actual capital amounts and ratios
Tier I Capital to average assets actual amount	$ 74,183	$ 64,914
Tier I Capital to average assets for capital adequacy purposes amount	31,875	28,534
Tier I Capital to average assets to be well capitalized under prompt corrective action procedures amount	39,844	35,668
Tier I Common equity capital to risk-weighted assets actual amount	74,183	64,914
Tier I Common equity capital to risk-weighted assets for capital adequacy purposes	32,477	28,545
Tier I Common equity capital to risk-weighted assets to be well capitalized under prompt corrective action procedures amount	46,912	41,231
Tier I Capital to risk-weighted assets actual amount	74,183	64,914
Tier I Capital to risk-weighted assets for capital adequacy purposes	43,303	38,059
Tier I Capital to risk-weighted assets to be well capitalized under prompt corrective action procedures	57,738	50,746
Total Risk-based capital to risk-weighted assets actual amount	81,908	71,904
Total Risk-based capital to risk-weighted assets for capital adequacy purposes amount	57,738	50,746
Total Risk-based capital to risk-weighted assets to be well capitalized under prompt corrective action procedures amount	$ 72,172	$ 63,432
Tier I Capital to average assets actual ratio	9.31%	9.10%
Tier I Capital to average assets for capital adequacy purposes ratio	4.00%	4.00%
Tier I Capital to average assets to be well capitalized under prompt corrective action procedures ratio	5.00%	5.00%
Tier I Common equity capital to risk-weighted assets actual ratio	10.28%	10.23%
Tier I Common equity capital to risk-weighted assets for capital adequacy purposes	4.50%	4.50%
Tier I Common equity capital to risk-weighted assets to be well capitalized under prompt corrective action procedures ratio	6.50%	6.50%
Tier I Capital to risk-weighted assets actual ratio	10.28%	10.23%
Tier I Capital to risk-weighted assets for capital adequacy purposes ratio	6.00%	6.00%
Tier I Capital to risk-weighted assets to be well capitalized under prompt corrective action procedures ratio	8.00%	8.00%
Total Risk-based capital to risk-weighted assets actual ratio	11.35%	11.34%
Total Risk-based capital to risk-weighted assets capital adequacy purposes ratio	8.00%	8.00%
Total Risk-based capital to risk-weighted assets to be well capitalized under prompt corrective action procedures ratio	10.00%	10.00%

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The amount of total capital as defined in the regulations.

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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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