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Stock-Based Compensation (Details Narrative) - USD ($) | 1 Months Ended | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Feb. 28, 2018 | May 31, 2011 | Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017 | Dec. 31, 2016 | May 12, 2016
Award vesting period | 3 years |  |  |  |  |  |
Options, outstanding, intrinsic value |  |  | $ 11,000,000 |  | $ 5,700,000 |  |
Options, vested in period, fair value |  |  | 34,000 | $ 34,000 |  |  |
Stock options compensation not yet recognized, |  |  | $ 1,600,000 |  | $ 103,000 |  |
Compensation cost not yet recognized period for recognition |  |  | 1 year 9 months 4 days |  |  |  |
Salaries and Employee Benefits [Member] |  |  |  |  |  |  |
Allocated share-based compensation expense |  |  | $ 1,500,000 | $ 1,900,000 |  |  |
Restricted Stock [Member] | Senior Officers [Member] |  |  |  |  |  |  |
Common stock, grants in period | 94,344 |  |  |  |  |  |
Performance Shares [Member] |  |  |  |  |  |  |
Common stock, grants in period |  |  | 42,533 | 36,523 |  |  |
Nonvested awards, number of shares outstanding |  |  | 98,958 | 69,749 | 62,338 | 33,226 |
Performance Shares [Member] | Senior Officers [Member] |  |  |  |  |  |  |
Common stock, grants in period | 42,533 |  |  |  |  |  |
Award vesting period | 3 years |  |  |  |  |  |
Award vesting rights, percentage | 100.00% |  |  |  |  |  |
The 2016 Plan [Member] |  |  |  |  |  |  |
Common stock, capital shares reserved for future issuance |  |  |  |  |  |  | 1,000,000
Stock Plan 2006 [Member] | Restricted Stock and PRSU [Member] |  |  |  |  |  |  |
Compensation cost not yet recognized period for recognition |  |  | 2 years 3 months 29 days |  |  |  |
Nonvested awards, number of shares outstanding |  |  | 274,796 |  |  |  |
Common stock awards, compensation not yet recognized |  |  | $ 13,500,000 |  |  |  |
The 2011 ESPP [Member] |  |  |  |  |  |  |
Number of additional shares authorized |  | 550,000 |  |  |  |  |
ESPP percentage of market value of offering period |  | 85.00% |  |  |  |  |
Number of shares available for grant |  |  | 399,383 |  |  |  |
The 2011 ESPP [Member] | Maximum [Member] |  |  |  |  |  |  |
Maximum employee subscription rate ESPP (percent) |  | 10.00% |  |  |  |  |
The 2011 ESPP [Member] | Maximum [Member] | Annually [Member] |  |  |  |  |  |  |
Amount contributed to ESPP for participants |  | $ 25,000 |  |  |  |  |
The 2011 ESPP [Member] | Maximum [Member] | Offering Period [Member] |  |  |  |  |  |  |
Amount contributed to ESPP for participants |  | 6,250 |  |  |  |  |
The 2011 ESPP [Member] | Minimum [Member] | Pay Period [Member] |  |  |  |  |  |  |
Amount contributed to ESPP for participants |  | $ 10 |  |  |  |  |

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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