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Consolidated Statements of Cash Flows (Parentheticals) - shares | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2014
Conversion from Series A Convertible Preferred Stock to Common Stock [Member] |  |
Convertible preferred stock (in shares) |  | 71
Conversion of stock, shares issued (in shares) |  | 202,857
Conversion from Series C Convertible Preferred Stock to Common Stock [Member] |  |
Convertible preferred stock (in shares) | 132 |
Conversion of stock, shares issued (in shares) | 1,400,000 |
Conversion from Series B Convertible Preferred Stock to Common Stock [Member] |  |
Convertible preferred stock (in shares) |  | 1,550
Conversion of stock, shares issued (in shares) |  | 4,428,571

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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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