|
Stockholders' Equity (Details) (USD $)
|
12 Months Ended |
|
Jun. 30, 2012
|
Jun. 30, 2011
|
Jun. 30, 2010
|
| Common Stock [Abstract] |
|
|
|
| Common stock reserved for future issuance (in shares) |
3,588,465 |
|
|
| Common stock in public offering (in shares) |
|
2,250,000 |
|
| Warrants to purchase common stock (in shares) |
|
1,125,000 |
|
| Purchase price of common stock issued (in dollars per share) |
|
$ 2 |
|
| Exercise price of warrants (in dollars per share) |
|
$ 2.64 |
|
| Net proceeds after expenses from offering |
$ 0 |
$ 3,914,000 |
$ 0 |
|
Selling, General and Administrative Expenses [Member]
|
|
|
|
| Share-based Goods and Nonemployee Services Transaction [Line Items] |
|
|
|
| Stock compensation expense |
|
143,000 |
|
|
$0.86-$1.13 [Member]
|
|
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
|
| Number Outstanding (in shares) |
7,000 |
|
|
| Weighted-Average Remaining Contractual Life |
4 years 4 months 24 days |
|
|
| Weighted Average Exercise Price (in dollars per share) |
$ 1.05 |
|
|
| Number Exercisable (in shares) |
0 |
|
|
| Weighted-Average Exercise Price (in dollars per share) |
$ 0 |
|
|
|
$1.88-$2.56 [Member]
|
|
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
|
| Number Outstanding (in shares) |
530,000 |
|
|
| Weighted-Average Remaining Contractual Life |
2 years 3 months 18 days |
|
|
| Weighted Average Exercise Price (in dollars per share) |
$ 2.30 |
|
|
| Number Exercisable (in shares) |
234,382 |
|
|
| Weighted-Average Exercise Price (in dollars per share) |
$ 2.39 |
|
|
|
$2.88-$3.82 [Member]
|
|
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
|
| Number Outstanding (in shares) |
381,875 |
|
|
| Weighted-Average Remaining Contractual Life |
2 years 1 month 6 days |
|
|
| Weighted Average Exercise Price (in dollars per share) |
$ 3.00 |
|
|
| Number Exercisable (in shares) |
204,690 |
|
|
| Weighted-Average Exercise Price (in dollars per share) |
$ 3.03 |
|
|
|
$5.36-$7.00 [Member]
|
|
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
|
| Number Outstanding (in shares) |
30,834 |
|
|
| Weighted-Average Remaining Contractual Life |
7 months 6 days |
|
|
| Weighted Average Exercise Price (in dollars per share) |
$ 5.94 |
|
|
| Number Exercisable (in shares) |
30,834 |
|
|
| Weighted-Average Exercise Price (in dollars per share) |
$ 5.94 |
|
|
|
$14.32-$20.04 [Member]
|
|
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
|
| Number Outstanding (in shares) |
29,500 |
|
|
| Weighted-Average Remaining Contractual Life |
1 year 1 month 6 days |
|
|
| Weighted Average Exercise Price (in dollars per share) |
$ 16.66 |
|
|
| Number Exercisable (in shares) |
29,500 |
|
|
| Weighted-Average Exercise Price (in dollars per share) |
$ 16.66 |
|
|
|
Maximum [Member] | $0.86-$1.13 [Member]
|
|
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
|
| Range of Exercise Prices, Upper Range (in dollars per share) |
$ 1.13 |
|
|
|
Maximum [Member] | $1.88-$2.56 [Member]
|
|
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
|
| Range of Exercise Prices, Upper Range (in dollars per share) |
$ 2.56 |
|
|
|
Maximum [Member] | $2.88-$3.82 [Member]
|
|
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
|
| Range of Exercise Prices, Upper Range (in dollars per share) |
$ 3.82 |
|
|
|
Maximum [Member] | $5.36-$7.00 [Member]
|
|
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
|
| Range of Exercise Prices, Upper Range (in dollars per share) |
$ 7.00 |
|
|
|
Maximum [Member] | $14.32-$20.04 [Member]
|
|
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
|
| Range of Exercise Prices, Upper Range (in dollars per share) |
$ 20.04 |
|
|
|
Minimum [Member] | $0.86-$1.13 [Member]
|
|
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
|
| Range of Exercise Prices, Lower Range (in dollars per share) |
$ 0.86 |
|
|
|
Minimum [Member] | $1.88-$2.56 [Member]
|
|
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
|
| Range of Exercise Prices, Lower Range (in dollars per share) |
$ 1.88 |
|
|
|
Minimum [Member] | $2.88-$3.82 [Member]
|
|
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
|
| Range of Exercise Prices, Lower Range (in dollars per share) |
$ 2.88 |
|
|
|
Minimum [Member] | $5.36-$7.00 [Member]
|
|
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
|
| Range of Exercise Prices, Lower Range (in dollars per share) |
$ 5.36 |
|
|
|
Minimum [Member] | $14.32-$20.04 [Member]
|
|
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
|
| Range of Exercise Prices, Lower Range (in dollars per share) |
$ 14.32 |
|
|
|
Warrants [Member]
|
|
|
|
| Number of Shares [Roll Forward] |
|
|
|
| Balance at June 30 (in shares) |
1,125,000 |
0 |
|
| Warrants granted (in shares) |
0 |
1,125,000 |
|
| Warrants canceled (in shares) |
0 |
0 |
|
| Warrants exercised (in shares) |
0 |
0 |
|
| Outstanding and exercisable at June 30 (in shares) |
1,125,000 |
1,125,000 |
|
| Weighted-Average Exercise Price Per Share [Roll Forward] |
|
|
|
| Balance at June 30 (in dollars per share) |
$ 2.64 |
$ 0 |
|
| Warrants granted (in dollars per share) |
$ 0 |
$ 2.64 |
|
| Warrants canceled (in dollars per share) |
$ 0 |
$ 0 |
|
| Warrants exercised (in dollars per share) |
$ 0 |
$ 0 |
|
| Outstanding and exercisable at June 30 (in dollars per share) |
$ 2.64 |
$ 2.64 |
|
|
Stock Options [Member]
|
|
|
|
| Stock Compensation Expense [Abstract] |
|
|
|
| Total compensation cost not yet recognized |
172,000 |
|
|
| Weighted-average period for amortization of compensation cost |
2 years |
|
|
| Total fair value of options vested |
440,000 |
568,000 |
525,000 |
| Number of Shares [Roll Forward] |
|
|
|
| Outstanding at June 30, 2011 (in shares) |
1,464,807 |
|
|
| Granted (in shares) |
125,750 |
|
|
| Forfeited (in shares) |
(471,218) |
|
|
| Expired (in shares) |
(140,130) |
|
|
| Exercised (in shares) |
0 |
|
|
| Outstanding at June 30, 2012 (in shares) |
979,209 |
1,464,807 |
|
| Vested and Expected to Vest at June 30, 2012 (in shares) |
881,943 |
|
|
| Exercisable at June 30, 2012 (in shares) |
499,406 |
|
|
| Weighted-Average Exercise Price Per Share [Roll Forward] |
|
|
|
| Balance at June 30 (in dollars per share) |
$ 3.75 |
|
|
| Granted (in dollars per share) |
$ 1.97 |
|
|
| Forfeited (in dollars per share) |
$ 2.70 |
|
|
| Expired (in dollars per share) |
$ 10.10 |
|
|
| Outstanding and exercisable at June 30 (in dollars per share) |
$ 3.11 |
$ 3.75 |
|
| Vested and Expected to Vest at June 30, 2012 (in dollars per share) |
$ 3.06 |
|
|
| Exercisable at June 30, 2012 (in dollars per share) |
$ 3.72 |
|
|
| Weighted-Average Remaining Contractual Life [Abstract] |
|
|
|
| Outstanding at June 30, 2012 |
2 years 2 months 12 days |
|
|
| Vested and Expected to Vest at June 30, 2012 |
2 years |
|
|
| Exercisable at June 30, 2012 |
1 year 7 months 6 days |
|
|
| Aggregate Intrinsic Value [Abstract] |
|
|
|
| Outstanding at June 30, 2012 |
0 |
|
|
| Vested and Expected to Vest at June 30, 2012 |
0 |
|
|
| Exercisable at June 30, 2012 |
0 |
|
|
| Weighted-Average Grant Date Fair Value [Abstract] |
|
|
|
| Aggregate intrinsic value of options exercised |
|
1,000 |
|
|
Non-vested stock options [Member]
|
|
|
|
| Number of Shares [Roll Forward] |
|
|
|
| Outstanding at June 30, 2011 (in shares) |
903,830 |
|
|
| Granted (in shares) |
125,750 |
|
|
| Options Vested during the period |
(277,625) |
|
|
| Forfeited (in shares) |
(272,152) |
|
|
| Outstanding at June 30, 2012 (in shares) |
479,803 |
903,830 |
|
| Weighted-Average Grant Date Fair Value [Abstract] |
|
|
|
| Outstanding at June 30, 2011 (in dollars per share) |
$ 1.61 |
|
|
| Granted (in dollars per share) |
$ 1.17 |
$ 1.77 |
$ 1.48 |
| Vested (in dollars per share) |
$ 1.59 |
|
|
| Forfeited (in dollars per share) |
$ 1.63 |
|
|
| Outstanding at June 30, 2012 (in dollars per share) |
$ 1.50 |
$ 1.61 |
|
|
Restricted Stock [Member]
|
|
|
|
| Stock Compensation Expense [Abstract] |
|
|
|
| Total compensation cost net yet recognized |
739,000 |
|
|
| Weighted-average period for amortization of compensation cost |
2 years |
|
|
| Common Stock Restricted Awards [Abstract] |
|
|
|
| Distribution agreement period |
4 years |
|
|
| Stocks granted in terms of percentage of total outstanding common shares |
0.50% |
|
|
| Additional issue of shares upon completion of milestones (in shares) |
806,000 |
|
|
| Common stock granted to officer (in shares) |
|
30,000 |
|
| Number of installments |
|
3 |
|
| Number of Shares [Roll Forward] |
|
|
|
| Balance at June 30 (in shares) |
30,000 |
0 |
|
| Granted (in shares) |
720,000 |
30,000 |
|
| Vested (in shares) |
(10,000) |
0 |
|
| Forfeited (in shares) |
(200,000) |
0 |
|
| Outstanding at June 30 (in shares) |
540,000 |
30,000 |
|
| Weighted-Average Grant Date Fair Value [Roll Forward] |
|
|
|
| Balance at June 30 (in dollars per share) |
$ 2.25 |
$ 0 |
|
| Granted (in dollars per share) |
$ 1.89 |
$ 2.25 |
|
| Vested (in dollars per share) |
$ 2.25 |
$ 0 |
|
| Forfeited (in dollars per share) |
$ 1.80 |
$ 0 |
|
| Outstanding at June 30 (in dollars per share) |
$ 1.93 |
$ 2.25 |
|
|
Restricted Stock [Member] | Maximum [Member]
|
|
|
|
| Common Stock Restricted Awards [Abstract] |
|
|
|
| Restricted shares issuable (in shares) |
|
876,117 |
|
|
Restricted Stock [Member] | Minimum [Member]
|
|
|
|
| Common Stock Restricted Awards [Abstract] |
|
|
|
| Restriction period of shares to be released |
|
6 months |
|
| Cumulative sales as milestone |
$ 43,000,000 |
|
|
|
1998 Stock Option Plan [Member]
|
|
|
|
| Stock Options [Abstract] |
|
|
|
| Shares approved for issuance (in shares) |
949,500 |
|
|
| Options prices in terms of fair market value (in hundredths) |
100.00% |
|
|
|
1998 Stock Option Plan [Member] | Maximum [Member]
|
|
|
|
| Stock Options [Abstract] |
|
|
|
| Options expiry period |
10 years |
|
|
|
1998 Stock Option Plan [Member] | Stock Options [Member] | Maximum [Member]
|
|
|
|
| Stock Options [Abstract] |
|
|
|
| Options vesting period |
5 years |
|
|
|
1998 Stock Option Plan [Member] | Stock Options [Member] | Minimum [Member]
|
|
|
|
| Stock Options [Abstract] |
|
|
|
| Options vesting period |
3 years |
|
|
|
2002 Independent Directors Equity Incentive Plan [Member]
|
|
|
|
| Stock Options [Abstract] |
|
|
|
| Shares approved for issuance (in shares) |
87,500 |
|
|
| Options prices in terms of fair market value (in hundredths) |
100.00% |
|
|
|
2002 Independent Directors Equity Incentive Plan [Member] | Maximum [Member]
|
|
|
|
| Stock Options [Abstract] |
|
|
|
| Options expiry period |
10 years |
|
|
|
2006 Equity Incentive Plan [Member]
|
|
|
|
| Stock Options [Abstract] |
|
|
|
| Shares approved for issuance (in shares) |
2,568,580 |
|
|
| Shares authorized to be issued in terms of outstanding shares (in hundredths) |
6.00% |
|
|
|
Nanshan Memorial Medical Institute [Member] | Restricted Stock [Member]
|
|
|
|
| Number of Shares [Roll Forward] |
|
|
|
| Granted (in shares) |
|
70,117 |
|