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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Sep. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Deferred Profit
The components of deferred profit are as follows:
 
 
September 30,
 
2015
 
2014
 
2013
 
(dollars in thousands)
Deferred revenue
$
7,280

 
$
8,118

 
$
3,371

Deferred costs
2,407

 
1,210

 
304

Deferred profit
$
4,873

 
$
6,908

 
$
3,067
Allowance For Doubtful Accounts
The following is a summary of the activity in the Company’s allowance for doubtful accounts:
 
 
Years Ended September 30,
 
2015
 
2014
 
2013
 
(dollars in thousands)
Balance at beginning of year
$
2,846

 
$
638

 
$
517

(Reversal) / Provision
(194
)
 
1,304

 
199

Write offs
(130
)
 
(13
)
 
(78
)
Acquired through business acquisitions
1,397

 
—

 
—

Adjustment
1,090

 
917

 
—

Balance at end of year
$
5,009

 
$
2,846

 
$
638
Schedule of Inventory, Current
The components of inventories are as follows:
 
September 30, 2015
 
September 30, 2014
 
(dollars in thousands)
Purchased parts and raw materials
$
6,065

 
$
8,797

Work-in-process
5,669

 
4,809

Finished goods
11,595

 
3,154

 
$
23,329

 
$
16,760
Property, Plant and Equipment
The following is a summary of property, plant and equipment:
 
September 30, 2015
 
September 30, 2014
 
(dollars in thousands)
Land, building and leasehold improvements
$
18,095

 
$
10,414

Equipment and machinery
9,709

 
8,189

Furniture and fixtures
5,465

 
5,453

 
33,269

 
24,056

Accumulated depreciation and amortization
(15,508
)
 
(14,304
)
 
$
17,761

 
$
9,752
Schedule of Goodwill
The changes in the carrying amount of goodwill for the year ended September 30, 2015 are as follows.
 
Solar
 
Semiconductor
 
Polishing
 
Total
 
(dollars in thousands)
   Goodwill
$
12,315

 
$
—

 
$
728

 
$
13,043

   Accumulated impairment losses
(4,720
)
 

 
—

 
(4,720
)
Carrying value at September 30, 2014
7,595

 
—

 
728

 
8,323

Goodwill recognized due to acquisitions
3,218

 
4,463

 
—

 
7,681

Goodwill derecognized due to deconsolidation
(5,198
)
 
—

 
—

 
(5,198
)
Net exchange differences
(271
)
 
—

 
—

 
(271
)
Carrying value at September 30, 2015
$
5,344

 
$
4,463

 
$
728

 
$
10,535

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   Goodwill
9,899

 
4,463

 
728

 
15,090

   Accumulated impairment losses
(4,555
)
 
—

 
—

 
(4,555
)
Carrying value at September 30, 2015
$
5,344

 
$
4,463

 
$
728

 
$
10,535
Schedule of Finite-Lived Intangible Assets
The following is a summary of intangibles:
 
 
Useful Life
 
Gross Carrying Amount
Accumulated Amortization
Net Carrying Amount
 
Gross Carrying Amount
Accumulated Amortization
Net Carrying Amount
 
 
 
Years Ended September 30,
 
 
 
2015
 
2014
 
 
 
(dollars in thousands)
Non-compete agreements
4-8 years
 
$
137

$
(137
)
$
—

 
$
1,055

$
(955
)
$
100

Customer lists
6-10 years
 
2,434

(808
)
1,626

 
817

(592
)
225

Technology
5-10 years
 
3,223

(1,368
)
1,855

 
2,319

(1,682
)
637

In-process research and development
5 years
 
—

—

—

 
1,600

(27
)
1,573

Trade names
10-15 Years
 
1,456

(72
)
1,384

 
—

—

—

Other
2-10 years
 
278

(204
)
74

 
321

(178
)
143

 
 
 
7,528

(2,589
)
4,939

 
6,112

(3,434
)
2,678
Schedule of Product Warranty Liability
The following is a summary of activity in accrued warranty expense:
 
 
Years Ended September 30,
 
2015
 
2014
 
2013
 
(dollars in thousands)
Beginning balance
$
628

 
$
1,454

 
$
2,687

Warranty expenditures
(706
)
 
(819
)
 
(1,360
)
Reserve provision/(adjustment)
871

 
(7
)
 
127

Ending balance
$
793

 
$
628

 
$
1,454
Research and Development Expense
 
 
Years Ended September 30,
 
2015
 
2014
 
2013
 
(dollars in thousands)
Research, development and engineering
$
13,214

 
$
10,863

 
$
8,459

Grants earned
(6,296
)
 
(4,572
)
 
(1,865
)
Net research, development and engineering
$
6,918

 
$
6,291

 
$
6,594
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan
Stock-based compensation expense for the fiscal years ended September 30, 2015, 2014 and 2013 reduced the Company’s results of operations as follows:
 
 
Years Ended September 30,
 
2015
 
2014
 
2013
 
(dollars in thousands)
Effect on income before income taxes (1)
$
(1,162
)
 
$
(795
)
 
$
(2,472
)
Effect on income taxes
$
221

 
$
326

 
$
512

Effect on net income
$
(941
)
 
$
(469
)
 
$
(1,960
)

(1) Stock-based compensation expense is included in selling, general and administrative expense
Stock-based compensation plans are summarized in the table below:
Name of Plan
 
Shares Authorized
 
Shares Available
 
Options Outstanding
 
Plan Expiration
2007 Employee Stock Incentive Plan
 
3,000,000

 
916,038

 
1,425,297

 
Mar. 2020
1998 Employee Stock Option Plan
 
500,000

 
—

 
23,710

 
Jan. 2008
Non-Employee Directors Stock Option Plan
 
500,000

 
167,600

 
178,470

 
Mar. 2020
 
 
 

 
1,083,638

 
1,627,477

 
 
Schedule of the fair value of stock option awards
The Company estimates the fair value of stock option awards on the date of grant using the Black-Scholes option pricing model using the following assumptions:
 
 
Years Ended September 30,
 
2015
 
2014
 
2013
Risk free interest rate
2%
 
2%
 
1%
Expected life
6 years
 
6 years
 
6 years
Dividend rate
0%
 
0%
 
0%
Volatility
67%
 
69%
 
70%
Schedule of Multiemployer Plans
Below is a table of contributions made by the Company to multiemployer pension plans.

 
Contributions
 
Years Ended September 30,
 
2015
 
2014
 
2013
 
(dollars in thousands)
Pensioenfonds Metaal en Techniek (PMT)
$
805

 
$
929

 
$
879

Other plans
158

 
158

 
163

Total
$
963

 
$
1,087

 
$
1,042