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Basis of Presentation (Tables)
 6 Months Ended
Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Deferred Revenue, by Arrangement, Disclosure
The components of deferred profit are as follows:
 
 
March 31,
2015
 
September 30,
2014
 
(dollars in thousands)
Deferred revenues
$
8,338

 
$
8,118

Deferred costs
2,841

 
1,210

Deferred profit
$
5,497

 
$
6,908
Schedule of Inventory, Current
The components of inventories are as follows:
 
 
March 31,
2015
 
September 30,
2014
 
(dollars in thousands)
Purchased parts and raw materials
$
14,410

 
$
8,797

Work-in-process
11,111

 
4,809

Finished goods
7,536

 
3,154

 
$
33,057

 
$
16,760
Property, Plant and Equipment
The following is a summary of property, plant and equipment:
 
 
March 31,
2015
 
September 30,
2014
 
(dollars in thousands)
Land, building and leasehold improvements
$
18,022

 
$
10,414

Equipment and machinery
11,320

 
8,189

Furniture and fixtures
5,189

 
5,453

 
34,531

 
24,056

Accumulated depreciation
(14,352
)
 
(14,304
)
 
$
20,179

 
$
9,752
Schedule of Goodwill
The following is a summary of activity in goodwill:
 
 
Solar
 
Semiconductor
 
Polishing
 
Total
 
(dollars in thousands)
   Gross 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

2,272

 
4,347

 
—

 
6,619

Net exchange differences
(346
)
 
—

 
—

 
(346
)
Carrying value at March 31, 2015
$
9,521

 
$
4,347

 
$
728

 
$
14,596

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   Goodwill
$
14,030

 
$
4,347

 
$
728

 
$
19,105

   Accumulated impairment losses
(4,509
)
 
—

 
—

 
(4,509
)
Carrying value at March 31, 2015
$
9,521

 
$
4,347

 
$
728

 
$
14,596
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
 
 
 
March 31, 2015
 
September 30, 2014
 
 
 
(dollars in thousands)
Non-compete agreements
4-8 years
 
$
1,032

$
(1,032
)
$
—

 
$
1,055

$
(955
)
$
100

Customer lists
10 years
 
699

(568
)
131

 
817

(592
)
225

Technology
5-10 years
 
2,085

(1,734
)
351

 
2,319

(1,682
)
637

In-process research and development
5 years
 
1,600

(187
)
1,413

 
1,600

(27
)
1,573

Trade names
15 years
 
1,330

(18
)
1,312

 
—

—

—

Other
2-12 years
 
2,429

(258
)
2,171

 
321

(178
)
143

 
 
 
$
9,175

$
(3,797
)
$
5,378

 
$
6,112

$
(3,434
)
$
2,678
Schedule of Product Warranty Liability
The following is a summary of activity in accrued warranty expense:
 
 
Six Months Ended March 31,
 
2015
 
2014
 
(dollars in thousands)
Beginning balance
$
628

 
$
1,454

Warranty expenditures
(368
)
 
(496
)
Warranty provisions/(adjustment)
791

 
(200
)
Ending balance
$
1,051

 
$
758
Effects of share-based compensation expense
Stock-based compensation expense reduced the Company’s results of operations by the following amounts:
 
 
Three Months Ended March 31,
 
Six Months Ended March 31,
 
2015
 
2014
 
2015
 
2014
 
(dollars in thousands)
Effect on income before income taxes (1)
$
(336
)
 
$
(197
)
 
$
(568
)
 
$
(373
)
Effect on income taxes
58

 
119

 
95

 
159

Effect on net income
$
(278
)
 
$
(78
)
 
$
(473
)
 
$
(214
)
 
(1)
Stock-based compensation expense is included in selling, general and administrative expenses.
Schedule of Share-based Compensation, Stock Options, Activity
Stock option transactions and the options outstanding are summarized as follows:
 
 
Six Months Ended March 31,
 
2015
 
2014
 
Options
 
Weighted
Average
Exercise
Price
 
Options
 
Weighted
Average
Exercise
Price
Outstanding at beginning of period
1,063,324

 
$
7.37

 
1,059,417

 
$
6.71

Granted
327,500

 
9.74

 
220,406

 
7.01

Assumed - merger
367,229

 
14.19

 
—

 
—

Exercised
(11,289
)
 
4.91

 
(260,726
)
 
4.28

Forfeited
(641
)
 
9.08

 
(3,464
)
 
6.92

Outstanding at end of period
1,746,123

 
$
9.26

 
1,015,633

 
$
7.40

 
 
 
 
 
 
 
 
Exercisable at end of period
1,102,682

 
$
9.90

 
664,934

 
$
8.11

Weighted average fair value of options
granted during the period
$
5.91

 
 
 
$
4.38

 
 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
The fair value of options was estimated at the grant date using the Black-Scholes option pricing model with the following assumptions:
 
 
Six Months Ended March 31,
 
2015
 
2014
Risk free interest rate
2%
 
2%
Expected life
6 years
 
6 years
Dividend rate
0%
 
0%
Volatility
67%
 
69%
Schedule of Share-based Compensation, Restricted Stock Activity
Restricted stock transactions and awards outstanding are summarized as follows:
 
 
Six Months Ended March 31,
 
2015
 
2014
 
Awards
 
Weighted
Average
Grant Date
Fair Value
 
Awards
 
Weighted
Average
Grant Date
Fair Value
Beginning Outstanding
35,203

 
$
10.13

 
69,154

 
$
10.13

Released
(21,663
)
 
11.47

 
(30,828
)
 
10.08

Ending Outstanding
13,540

 
$
7.98

 
38,326

 
$
10.17
Research and Development Expense
The table below shows gross research and development expenses and grants earned:
 
 
Three Months Ended
 
Six Months Ended
 
March 31,
2015
 
March 31,
2014
 
March 31,
2015
 
March 31,
2014
 
(dollars in thousands)
 
(dollars in thousands)
Research, development and engineering
$
3,540

 
$
2,494

 
$
6,113

 
$
5,388

Grants earned
(2,790
)
 
(339
)
 
(3,527
)
 
(2,344
)
Net research, development and engineering
$
750

 
$
2,155

 
$
2,586

 
$
3,044