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Consolidated Statements of Cash Flows (Parentheticals) - shares | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Series A Convertible Preferred Stock [Member] |  |  |  |  |
Convertible preferred stock (in shares) | 71 |  | 71 | 717 | 1,412
Common stock conversion (in shares) | 202,857 | 0 | 202,857 | 2,048,570 | 1,882,667
Series B Convertible Preferred Stock [Member] |  |  |  |  |
Convertible preferred stock (in shares) |  |  | 1,550 |  |
Common stock conversion (in shares) |  | 0 | 4,428,571 | 0 |

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- Definition The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 + Details
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