Stockholders' Equity
12 Months Ended
Jun. 30, 2013
Stockholders' Equity Note [Abstract]  
Stockholders' Equity Note Disclosure [Text Block]
Note 10.  Stockholders’ Equity
 
Stock Options
 
In December 2007, we established the 2007 Equity Compensation Plan (the “Plan”). The Plan was approved by our board of directors and stockholders. The purpose of the Plan is to grant stock and options to purchase our common stock to our employees, directors and key consultants. On November 15, 2012, the maximum number of shares of common stock that may be issued pursuant to awards granted under the Plan increased from 1,500,000 to 3,000,000, as approved by our board of directors and stockholders.  Cancelled and forfeited stock options and stock awards may again become available for grant under the Plan. There were 1,187,829 shares available for grant under the Plan as of June 30, 2013. All current stock option grants are made under the 2007 Equity Compensation Plan.
 
The majority of awards issued under the Plan vest immediately or over three years, with a one year cliff vesting period, and have a term of ten years. Stock-based compensation cost is measured at the grant date, based on the fair value of the awards that are ultimately expected to vest, and recognized on a straight-line basis over the requisite service period, which is generally the vesting period.
 
The following table summarizes vested and unvested stock option activity:
 
 
 
All Options
 
Vested Options
 
Unvested Options
 
 
 
Shares
 
Weighted
Average
Exercise
Price
 
Shares
 
Weighted
Average
Exercise
Price
 
Shares
 
Weighted
Average
Exercise
Price
 
Outstanding at June 30, 2011
 
 
1,439,000
 
$
1.23
 
 
1,153,000
 
$
1.24
 
 
286,000
 
$
1.21
 
Granted
 
 
288,000
 
 
1.42
 
 
68,833
 
 
1.79
 
 
219,167
 
 
1.30
 
Options vesting
 
 
-
 
 
-
 
 
134,833
 
 
1.20
 
 
(134,833)
 
 
1.20
 
Exercised
 
 
-
 
 
-
 
 
-
 
 
-
 
 
-
 
 
-
 
Forfeited/Cancelled
 
 
(255,833)
 
 
1.21
 
 
(215,000)
 
 
1.25
 
 
(40,833)
 
 
1.02
 
Outstanding at June 30, 2012
 
 
1,471,167
 
 
1.27
 
 
1,141,666
 
 
1.27
 
 
329,501
 
 
1.29
 
Granted
 
 
387,898
 
 
1.19
 
 
183,898
 
 
1.14
 
 
204,000
 
 
1.24
 
Options vesting
 
 
-
 
 
-
 
 
193,333
 
 
1.25
 
 
(193,333)
 
 
1.25
 
Exercised
 
 
(85,333)
 
 
1.04
 
 
(85,333)
 
 
1.04
 
 
-
 
 
-
 
Forfeited/Cancelled
 
 
(80,834)
 
 
1.82
 
 
(80,834)
 
 
1.82
 
 
-
 
 
-
 
Outstanding at June 30, 2013
 
 
1,692,898
 
$
1.24
 
 
1,352,730
 
$
1.23
 
 
340,168
 
$
1.29
 
 
The following table presents the assumptions used to estimate the fair values based upon a Black-Scholes option pricing model of the stock options granted during the years ended June 30, 2013 and 2012.
 
 
 
Years Ended June 30,
 
 
 
 
2013
 
 
2012
 
 
Expected dividend yield
 
 
0
%
 
 
0
%
 
Risk-free interest rate
 
 
0.67% - 1.08
%
 
 
0.87% - 1.95
%
 
Expected life (in years)
 
 
5 - 6
 
 
 
5 - 6
 
 
Expected volatility
 
 
130% - 133
%
 
 
144% - 148
%
 
   
The weighted average remaining contractual life of all options outstanding as of June 30, 2013 was 7.11 years.  The remaining contractual life for options vested and exercisable at June 30, 2013 was 6.57 years.  Furthermore, the aggregate intrinsic value of all options outstanding as of June 30, 2013 was $984,606, and the aggregate intrinsic value of options vested and exercisable at June 30, 2013 was $803,456, in each case based on the fair value of the Company’s common stock on June 30, 2013.  The total fair value of options vested during the year ended June 30, 2013 was $323,776 and is included in selling, general and administrative expenses in the accompanying statement of operations.  As of June 30, 2013, the amount of unvested compensation related to these options was $283,099 which will be recorded as an expense in future periods as the options vest.
 
On July 20, 2012, a former employee exercised options to purchase 73,333 shares of the Company’s common stock on a cashless basis.  The Company issued 17,844 shares of common stock as a result of the exercise.  In addition, on June 25, 2013, a former employee exercised options to purchase 12,000 shares of the Company’s common stock on a cashless basis.  The Company issued 3,922 shares of common stock as a result of the exercise.
 
Additional information regarding stock options outstanding and exercisable as of June 30, 2013 is as follows:
 
Option Exercise Price
 
Options
Outstanding
 
Remaining
Contractual
Life (in years)
 
Options
Exercisable
 
$
1.00
 
 
347,000
 
 
5.91
 
 
347,000
 
 
1.02
 
 
287,000
 
 
7.08
 
 
287,000
 
 
1.07
 
 
53,898
 
 
9.30
 
 
33,898
 
 
1.15
 
 
278,000
 
 
9.61
 
 
150,000
 
 
1.25
 
 
32,000
 
 
9.63
 
 
-
 
 
1.30
 
 
263,000
 
 
8.68
 
 
131,500
 
 
1.50
 
 
380,000
 
 
4.56
 
 
380,000
 
 
1.85
 
 
24,000
 
 
9.89
 
 
-
 
 
3.00
 
 
15,000
 
 
7.54
 
 
12,500
 
 
3.05
 
 
10,000
 
 
7.62
 
 
8,332
 
 
3.65
 
 
3,000
 
 
7.73
 
 
2,500
 
 
Total
 
 
1,692,898
 
 
 
 
 
1,352,730
 
 
Warrants
 
The following table summarizes warrant activity:
 
 
 
Number of
Warrants
 
Weighted
Average
Exercise
Price
 
Outstanding, June 30, 2011
 
 
2,894,684
 
$
1.98
 
Granted
 
 
155,000
 
 
1.27
 
Exercised
 
 
(462,502)
 
 
1.35
 
Expired
 
 
(11,000)
 
 
1.50
 
Outstanding, June 30, 2012
 
 
2,576,182
 
 
2.06
 
Granted
 
 
-
 
 
-
 
Exercised
 
 
-
 
 
-
 
Expired
 
 
(200,009)
 
 
2.00
 
Outstanding, June 30, 2013
 
 
2,376,173
 
$
2.06
 
Exercisable, June 30, 2012
 
 
2,576,182
 
$
2.06
 
Exercisable, June 30, 2013
 
 
2,376,173
 
$
2.06
 
 
The intrinsic value for all warrants outstanding as of June 30, 2013 was $190,667, based on the fair value of the Company’s common stock on June 30, 2013.
 
On July 1, 2011, the Company issued warrants to purchase an aggregate of 5,000 shares of the Company’s common stock to two consultants in exchange for services.  All of these warrants vested immediately and expire on July 1, 2016.  2,500 of the warrants have an exercise price of $3.50 per share, and 2,500 of the warrants have an exercise price of $4.00 per share.  The fair value of the warrants, as calculated pursuant to the Black-Scholes option pricing model, was determined to be $8,614, and was charged to operations during the year ended June 30, 2012.  The fair value of the warrants was calculated using the following assumptions: term of 5 years; expected volatility of 73%; no dividend yield, and risk-free interest rate of  0.92%.
 
On July 17, 2011, the Company agreed to extend to July 17, 2012 the expiration date of then outstanding warrants to purchase 200,009 shares of the Company’s common stock at an exercise price of $2.00 per share. The warrant holders agreed to relinquish the cashless exercise feature of the warrants in exchange for the extension of the expiration date.  On July 17, 2011, the fair value of the warrant extension, as calculated pursuant to the Black-Scholes option pricing model, was determined to be $264,714, and was charged to operations during the year ended June 30, 2012.  The fair value of the warrant extension was calculated using the following assumptions: term of 1 year; expected volatility of 73%; no dividend yield, and risk-free interest rate of  0.92%.
 
In October and December 2010, the Company issued warrants to purchase an aggregate of 1,000,000 shares of the Company’s common stock to two consultants for services to be rendered under consulting agreements with the Company. All of the consultant warrants have a four-year exercise term. Warrants to purchase 400,000 common shares, exercisable at $1.25 per share, vested immediately.  Of the aggregate issuance, warrants to purchase 333,333 shares are exercisable at $1.75 per share and warrants to purchase 266,667 shares are exercisable at $2.25 per share, all of which vest over a one-year period. In the periods prior to July 1, 2011, the Company recorded $1,175,748 of compensation cost relating to the vesting of these warrants based on their fair value at the reporting date.  At September 30, 2011, the warrants fully vested and the Company determined that the fair value of the unvested warrants upon vesting was $727,910 as calculated using the Black Scholes option pricing model with the following assumptions; no dividend yield, risk free interest rate of 4.5%, expected volatility of 73%, and an expected term of the warrants of 4 years.  The fair value of $727,910 reflected a decrease of $447,838 from the fair value of $1,175,748 at June 30, 2011.  As such the Company recognized a gain of $447,838 during the year ended June 30, 2012.
 
In November 2010, the Company issued to three members of the board of directors warrants to purchase an aggregate of 150,000 shares of the Company’s common stock at an exercise price of $1.25 per share.  Each of the warrants is subject to the following vesting schedule: 12,500 shares vested and became exercisable under the warrant on each of December 31, 2010, March 31, 2011, June 30, 2011 and September 30, 2011.  Each warrant expires on November 5, 2015.  The fair market value of the warrants upon issuance was $161,304 calculated using a Black-Scholes option pricing model with the following assumptions; no dividend yield, risk free interest rate of 4.5%, expected volatility of 73%, and an expected term of the warrants of 4 years.  Stock based compensation cost of $40,326 was recorded during the year ended June 30, 2012 for warrants vesting during the period.
 
On August 4, 2011, warrant holders exercised warrants to purchase 462,502 shares of the Company’s common stock on a cashless basis. The Company issued 246,928 shares of common stock as a result of those exercises.
 
On December 19, 2011, the Company issued to three members of the board of directors warrants to purchase an aggregate of 150,000 shares of the Company’s common stock at an exercise price of $1.19 per share.  All of the warrants vested immediately and expire on December 19, 2021. The fair market value of the warrants upon issuance was $161,773 calculated using a Black-Scholes option pricing model with the following assumptions; no dividend yield, risk free interest rate of 1.95%, expected volatility of 148%, and an expected term of the warrants of 5 years.  Stock based compensation cost of $161,773 was recorded during the year ended June 30, 2012 for the issuance of these warrants.
 
Additional information regarding warrants outstanding and exercisable as of June 30, 2013 is as follows:
 
Warrant Exercise Price
 
Warrants
Outstanding
 
Remaining
Contractual
Life (in years)
 
Warrants
Exercisable
 
$1.19
 
 
150,000
 
 
8.48
 
 
150,000
 
1.25
 
 
150,000
 
 
2.35
 
 
150,000
 
1.75
 
 
333,331
 
 
1.39
 
 
333,331
 
2.00
 
 
1,081,175
 
 
0.33
 
 
1,081,175
 
2.25
 
 
266,667
 
 
1.48
 
 
266,667
 
3.00
 
 
390,000
 
 
0.63
 
 
390,000
 
3.50
 
 
2,500
 
 
3.01
 
 
2,500
 
4.00
 
 
2,500
 
 
3.01
 
 
2,500
 
Total
 
 
2,376,173
 
 
 
 
 
2,376,173
 
   
Issuance of Common Stock
 
On May 20, 2013, the Company issued 33,913 shares of common stock to employees.  The grant date fair value of these shares was $1.85 per share.  The fair value of restricted stock awards is estimated by market price of our common stock on the date of grant.  Stock based compensation expense for these awards was determined based on the grant date fair value applied to the total number of shares awarded.  Stock based compensation expense of $62,787 was recorded during the year ended June 30, 2013 for these restricted stock awards, and, as of June 30, 2013, there was no associated unrecognized compensation expense.