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Summary of Significant Accounting Policies (Details Narrative) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Income tax examination, likelihood of unfavorable settlement | greater than 50 percent likelihood |  |
Diluted earning per shares excluded unexercised stock option | 30,859 |  |
Stock dividend percentage | 5.00% | 5.00% | 5.00%
Accounting Standards Update 2016-09 [Member] |  |  |
Employee service share-based compensation, decreased tax benefit realized from exercise of stock options | $ 136 | $ 103 | $ 308

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