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Shareholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2019
Equity [Abstract] |
Schedule of stock repurchase activity | The following table summarizes the Company’s stock repurchase activities:
Period | Total Number of Shares Purchased |  | Average Price Paid per Share |  | Amount |  | Total Number of Treasury Shares Purchased as Part of Publicly Announced Plan |  | Maximum Dollar Value of Shares that May Yet Be Purchased Under the Plan
Privately Negotiated Transactions: |  |  |  |  |  |  |  |  |
January 12, 2016 - Abengoa repurchased and retired shares | 2,136,752 |  |  | $ | 1.35 |  |  | $ | 2,884,615 |  |  | — |  |  | N/A
January 11, 2017 - Pinnacle Family Office Investments L.P. repurchased shares | 2,363,590 |  |  | 1.54 |  |  | 3,639,929 |  |  | 2,363,590 |  |  | N/A
|  |  |  |  |  |  |  |  | $ | 15,000,000 |
2016 Stock Repurchase Program (1): |  |  |  |  |  |  |  |  |
January through February 2017 | 7,863,980 |  |  | 1.58 |  |  | 12,448,283 |  |  | 7,863,980 |  |  | $ | 2,551,717 |
2017 Stock Repurchase Program: |  |  |  |  |  |  |  |  | $ | 5,000,000 |
September through December 2017 | 381,607 |  |  | 1.41 |  |  | 537,661 |  |  | 381,607 |  |  | $ | 4,462,339 |
January through August 2018 | 1,644,325 |  |  | 1.40 |  |  | 2,304,042 |  |  | 1,644,325 |  |  | $ | 2,158,297 |
Total open market and privately negotiated purchases | 14,390,254 |  |  | $ | 1.52 |  |  | $ | 21,814,530 |  |  | 12,253,502 |  |  |
_________________ Notes: (1) The 2016 Stock Repurchase Program ended on February 15, 2017.

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- Definition Tabular disclosure of treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23309-112656 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656 + Details
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