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Stock-Based Compensation (Activity in the Stock Plan) (Details) - shares | 1 Months Ended | 3 Months Ended | 123 Months Ended | 171 Months Ended
--- | --- | --- | --- | ---
May 31, 2014 | Mar. 31, 2019 | Mar. 31, 2019 | Mar. 31, 2019
Employee Stock Award Plan-2008 |  |  |  |
Authorized Shares Available for Future Award Grants |  |  |  |
Beginning balance (in shares) |  | 890,857 | 1,900,000 |
Additional shares authorized (in shares) | 1,500,000 | 0 | 1,500,000 |
Number of awards granted (in shares) |  | (116,833) | (3,139,900) |
Number of awards forfeited or expired (in shares) |  | 26,145 | 540,069 |
Ending balance (in shares) |  | 800,169 | 800,169 | 800,169
Employee Stock Award Plan-2008 | Options Awards |  |  |  |
Authorized Shares Available for Future Award Grants |  |  |  |
Number of option awards exercised (in shares) |  | 27,815 | 1,352,429 |
Employee Stock Award Plan-2008 | Unrestricted Stock Awards |  |  |  |
Authorized Shares Available for Future Award Grants |  |  |  |
Number of awards granted (in shares) |  | 0 | (9,370) |
Employee Stock Award Plan-2008 | Restricted Stock Awards |  |  |  |
Authorized Shares Available for Future Award Grants |  |  |  |
Number of restricted stock awards vested (in shares) |  | 41,468 | 99,661 |
Director Plan - 2005 |  |  |  |
Authorized Shares Available for Future Award Grants |  |  |  |
Beginning balance (in shares) |  | 49,163 |  | 300,000
Number of awards granted (in shares) |  | 0 |  | (274,840)
Number of awards forfeited or expired (in shares) |  | 0 |  | 24,003
Ending balance (in shares) |  | 49,163 | 49,163 | 49,163
Director Plan - 2005 | Options Awards |  |  |  |
Authorized Shares Available for Future Award Grants |  |  |  |
Number of option awards exercised (in shares) |  | 1,131 |  | 119,092
Number of restricted stock awards vested (in shares) |  | 0 |  | 71,541

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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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