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Financial Condition (Details Textual) - USD ($) |  |  | 1 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Feb. 08, 2017 | Feb. 07, 2017 | Jan. 30, 2017 | Dec. 31, 2016 | Jun. 30, 2016 | Dec. 31, 2015 | Jun. 30, 2015
Financial Condition [Line Items] |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  | $ 19,301,566 | $ 24,162,185 | $ 28,237,621 | $ 31,467,748
Retained Earnings (Accumulated Deficit) |  |  |  | $ (69,432,044) | $ (64,824,201) |  |
Common stock, par value (in dollars per share) |  |  |  | $ 0.001 | $ 0.001 |  |
Series B Convertible Debentures [Member] |  |  |  |  |  |  |
Financial Condition [Line Items] |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price |  |  |  | $ 3.5 |  |  |
Debentures payable |  |  |  | $ 6,000,000 | $ 6,000,000 |  |
Debt Instrument, Maturity Date |  |  |  | Feb. 01, 2017 |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |
Financial Condition [Line Items] |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price | $ 1.12 |  |  |  |  |  |
Debt Conversion, Original Debt, Amount | $ 5,000,000 | $ 5,027,178 | $ 5,020,000 |  |  |  |
Debt Instrument, Maturity Date | Jan. 31, 2017 | Jan. 31, 2017 |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued | 4,359,652 | 4,359,656 |  |  |  |  |
Common stock, par value (in dollars per share) | $ 0.001 | $ 0.001 |  |  |  |  |

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3044-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or 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 + Details
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- Definition The amount of the original debt being converted in a noncash (or part noncash) transaction. "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 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 Reference 2: 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 + Details
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