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Stockholders' Equity (Details) (USD $) | 3 Months Ended | 0 Months Ended
--- | --- | ---
Sep. 30, 2012 Restricted stock | Sep. 30, 2012 Stock options | Sep. 06, 2012 2004 Stock Plan Restricted stock | Sep. 06, 2012 2004 Stock Plan Common stock | Jul. 09, 2012 2004 Stock Plan Contractor Stock options | Jul. 09, 2012 2004 Stock Plan Contractor Common stock
Stock options exercised (in shares) |  | 30,000 |  |  | 30,000 |
Net share issuance |  |  |  |  |  | 15,512
Exercise price of options (in dollars per share) |  |  |  |  | $ 4.10 |
Number of shares issued |  |  |  | 154,227 |  |
Total unrecognized stock-based compensation expense | $ 3,014,246 |  | $ 1,223,020 |  |  |
Period for recognition of stock-based compensation expense (vesting period) | 2 years 10 months 24 days |  | 4 years |  |  |

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- Definition Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 4, 5 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 + Details
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