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Stock-based Compensation (Tables)
 12 Months Ended
Jun. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Compensation, Share Outstanding and Available for Grant
As of June 30, 2012, the outstanding options and available shares for issuance under these plans are:
 
Plan
Subject to  Outstanding
Options and Restricted Stock
 
Available shares
for  grant and issuance
2003 Stock Option Plan
364,710

 
16,599

2005 Equity Incentive Plan
888,566

 
871,198
Schedule of Share-based Payment Award, Valuation Assumptions
The weighted average grant-date fair value of the shares subject to purchase under the ESPP for the years ended June 30, 2012 and 2011 were $1.46 and $1.51, respectively, using the following weighted average assumptions:
 
 
Year Ended
June 30, 2012
 
Year Ended
June 30, 2011
 
Equity
Incentive
and Stock
Option Plans
 
Purchase
Plan
 
Equity
Incentive
and Stock
Option Plans
 
Purchase
Plan
Average risk free interest rate
0.67
%
 
0.10
%
 
1.04
%
 
0.13
%
Expected life (in years)
5.77

 
0.49

 
5.77

 
0.50

Expected volatility
82
%
 
62
%
 
87
%
 
61
%
Dividend yield
—
%
 
—
%
 
—
%
 
—
%
Schedule of Share-based Compensation, Stock Options, Activity
A summary of stock option activity under the option plans as of June 30, 2012 and changes during the year then ended is presented below:
 
Options
Shares
(in  thousands)
 
Weighted-
Average
Exercise
Price
Per Share
 
Weighted-
Average
Remaining
Contractual
Term (years)
 
Aggregate
Intrinsic
Value
(in thousands)
Outstanding at June 30, 2010
1,236

 
$
7.22

 
 
 
 
Granted
285

 
4.95

 
 
 
 
Exercised
(36
)
 
2.70

 
 
 
 
Forfeited or Expired
(153
)
 
17.28

 
 
 
 
Outstanding at June 30, 2011
1,332

 
5.70

 
 
 
 
Granted
281

 
3.73

 
 
 
 
Exercised
(30
)
 
2.99

 
 
 
 
Forfeited or Expired
(110
)
 
9.25

 
 
 
 
Outstanding at June 30, 2012
1,473

 
$
5.11

 
6.65

 
$
819

Vested/Expected to Vest at June 30, 2012
1,448

 
$
5.13

 
6.62

 
$
805

Exercisable at June 30, 2012
1,009

 
$
5.64

 
5.91

 
$
515
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity
A summary of unregistered restricted stock activity due to the acquisitions of MobileRobots and InMoTx (see Note 4) as of June 30, 2012 and 2011, respectively, is presented below:
 
Awards
Shares
 
Grant Date Fair
Market Value
Balance of awards issued in acquisition of MobileRobots at June 30, 2010
368,956

 
$
5.10

Accelerated vesting
(173,074
)
 
5.10

Vested
(65,293
)
 
5.10

Balance of MobileRobots issuance at June 30, 2011
130,589

 
$
5.10

Accelerated vesting
(115,383
)
 
5.10

Vested
(7,603
)
 
5.10

Balance of MobileRobots issuance at June 30, 2012
7,603

 
$
5.10

 
 
 
 
Issued in acquisition of InMoTx in 2011
100,000

 
$
4.89

Balance of awards issued in acquisition of InMoTx at June 30, 2011
100,000

 
$
4.89

Forfeited
(80,500
)
 
4.89

Vested
(19,500
)
 
4.89

Balance of InMoTx issuances at June 30, 2012
—

 
$
—
2005 Equity Incentive Plan [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity
A summary of restricted stock activity during fiscal year 2012 under the 2005 Equity Incentive Plan is presented below:
 
Awards
Shares
 
Weighted Average-
Grant  Date Fair Value
Per Share
Awarded
4,500

 
$
4.45

Vested
(55,705
)
 
$
4.84

Forfeited due to cancellation or for taxes
(36,295
)
 
$
4.84