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Equity (Tables)
 12 Months Ended
Sep. 30, 2016
Equity [Abstract]  
Schedule of Stock Options Activity
The following table summarizes stock option activity under the Equity Plans for the fiscal year ended September 30, 2016:


Number of Shares
 
Weighted Average Exercise Price
 
Weighted Average
Remaining Contractual Life
(in years)
 
Aggregate Intrinsic Value (*) (in thousands)
Outstanding as of September 30, 2015
696,459

 
$22.47
 
 
 
 
Granted
27,900

 
$6.01
 
 
 
 
Share adjustment for special dividend
185,726

 
$17.09
 
 
 
 
Exercised
(45,340
)
 
$4.97
 
 
 
$
87

Forfeited
(9,353
)
 
$5.49
 
 
 
 
Expired
(105,054
)
 
$27.72
 
 
 
 
Outstanding as of September 30, 2016
750,338

 
$16.84
 
2.31
 
$
479

Exercisable as of September 30, 2016
680,859

 
$17.06
 
1.64
 
$
406

Vested and expected to vest as of September 30, 2016
736,937

 
$18.08
 
2.19
 
$
466


(*) Intrinsic value for stock options represents the “in-the-money” portion or the positive variance between a stock option's exercise price and the underlying stock price. For the fiscal years ended September 30, 2015 and 2014, the intrinsic value of options exercised was $0.3 million and $0.1 million, respectively.
Schedule of Valuation Assumptions
The fair value of each stock option grant, excluding the adjustment for the special dividend, was estimated on the date of grant using the Black-Scholes option valuation model, adhering to the straight-line attribution approach using the following weighted-average assumptions, of which the expected term and stock price volatility rate are highly subjective:

 
For the Fiscal Years Ended September 30,
 
2016
 
2015
 
2014
Black-Scholes weighted average assumptions:
 
 
 
 
 
Expected dividend rate
—
%
 
—
%
 
—
%
Expected stock price volatility rate
60.9
%
 
66.1
%
 
92.8
%
Risk-free interest rate 
1.6
%
 
1.8
%
 
1.9
%
Expected term (in years)
6.0

 
6.0

 
6.0

 
 
 
 
 
 
Weighted average grant date fair value per share of stock options granted:
$
3.40

 
$
3.73

 
$
3.53
Schedule of Restricted Stock Activity
The following table summarizes the activity related to RSUs for the fiscal year ended September 30, 2016:

Restricted Stock Activity
 
Restricted Stock Units
 
 
Number of Shares
 
Weighted Average Grant Date Fair Value
Non-vested as of September 30, 2015
 
570,231

 
$5.26
Granted
 
449,250

 
$5.53
Share adjustment for special dividend
 
200,061

 
$0.00
Vested
 
(283,553
)
 
$5.17
Forfeited
 
(57,573
)
 
$5.04
Non-vested as of September 30, 2016
 
878,416

 
$4.25
Schedule of Stock-based Compensation Expense - By Award Type
The effect of recording stock-based compensation expense was as follows:

Stock-based Compensation Expense - by award type
For the Fiscal Years Ended September 30,
(in thousands)
2016
 
2015
 
2014
Employee stock options
$
38

 
$
194

 
$
135

Restricted stock awards and units
1,683

 
2,658

 
1,683

Employee stock purchase plan
223

 
143

 
289

401(k) match in common stock
—

 
284

 
513

Outside director fees in common stock
218

 
341

 
367

Total stock-based compensation expense
$
2,162

 
$
3,620

 
$
2,987
Schedule Stock-based Compensation Expense - By Expense Type
Stock-based Compensation Expense - by expense type
For the Fiscal Years Ended September 30,
(in thousands)
2016
 
2015
 
2014
Cost of revenue
$
345

 
$
341

 
$
466

Selling, general, and administrative
1,445

 
2,847

 
1,912

Research and development
372

 
432

 
609

Total stock-based compensation expense
$
2,162

 
$
3,620

 
$
2,987
Schedule of Earnings Per Share, Basic and Diluted
Income (Loss) Per Share
The following table sets forth the computation of basic and diluted net income (loss) per share:

Basic and Diluted Net Income (Loss) Per Share
 
For the Fiscal Years Ended September 30,
(in thousands, except per share)
 
2016
 
2015
 
2014
 
 
 
 
 
 
 
Numerator:
 
 
 
 
 
 
   Income (loss) from continuing operations
 
$
2,619

 
$
(2,272
)
 
$
4,082

   Income from discontinued operations
 
5,647

 
65,372

 
770

Undistributed earnings allocated to common shareholders for basic and diluted net income (loss) per share
 
8,266

 
63,100

 
4,852

Denominator:
 
 
 
 
 
 
Denominator for basic net income (loss) per share - weighted average shares outstanding
 
25,979

 
30,012

 
30,453

Dilutive options outstanding, unvested stock units and ESPP
 
539

 
—

 
324

Denominator for diluted net income (loss) per share - adjusted weighted average shares outstanding
 
26,518

 
30,012

 
30,777

 
 
 
 
 
 
 
Net income (loss) per basic share:
 
 
 
 
 
 
   Continuing operations
 
$
0.10

 
$
(0.08
)
 
$
0.13

   Discontinued operations
 
0.22

 
2.18

 
0.03

Net income per basic share
 
$
0.32

 
$
2.10

 
$
0.16

 
 
 
 
 
 
 
Net income (loss) per diluted share:
 

 

 

   Continuing operations
 
$
0.10

 
$
(0.08
)
 
$
0.13

   Discontinued operations
 
0.21

 
2.18

 
0.03

Net income per diluted share
 
$
0.31

 
$
2.10

 
$
0.16

Weighted average antidilutive options, unvested restricted stock units and awards, warrants and ESPP shares excluded from the computation
 
508

 
1,391

 
1,936

 
 
 
 
 
 
 
Average market price of common stock
 
$
5.88

 
$
5.81

 
$
4.69
Schedule of Common Stock Reserved for Future Issuances
As of September 30, 2016, we had common stock reserved for the following future issuances:
Future Issuances
Number of Common Stock Shares Available for Future Issuances
Exercise of outstanding stock options
750,338

Unvested restricted stock units
878,416

Purchases under the employee stock purchase plan
1,044,678

Issuance of stock-based awards under the Equity Plans
926,893

Purchases under the officer and director share purchase plan
88,741

Issuance of deferred stock-based awards under the Directors' Stock Award Plan, as amended
28,840

Total reserved
3,717,906