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Stock Options and Awards (Tables)
 12 Months Ended
Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]
The following table summarizes stock-based compensation expense in the Company's consolidated statements of operations:
 
Year ended
 
September 30, 2016
 
September 30, 2015
 
(Amounts in thousands)
Cost of sales
$
2

 
$
2

Engineering and development
6

 
22

Selling, general and administrative
406

 
351

Total
$
414

 
$
375

 
 
 
 
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
The following tables provide summary data of stock option award activity:
 
Number
of Shares
 
Weighted
average
exercise
price
 
Weighted
Average
Remaining
Contractual
Term
 
Aggregate
Intrinsic
Value
(in thousands)
 
 
 
 
 
 
 
 
Outstanding at September 30, 2014
92,126

 
$
7.66

 
—

 
—

Granted
—

 
—

 
—

 
—

Expired
(35,125
)
 
$
9.72

 
—

 
—

Forfeited
—

 
—

 
—

 
—

Exercised
(1,875
)
 
5.26

 
—

 
—

Outstanding at September 30, 2015
55,126

 
$
6.43

 
—

 
—

Granted
—

 
—

 
—

 
—

Expired
(17,500
)
 
$
6.61

 
—

 
—

Forfeited
—

 
—

 
—

 
—

Exercised
(14,000
)
 
6.20

 
—

 
—

Outstanding at September 30, 2016
23,626

 
$
5.76

 
1.53 Years

 
$
106

Exercisable at September 30, 2016
23,626

 
$
5.76

 
1.53 Years

 
$
106

Vested and expected to vest at September 30, 2016
23,626

 
$
5.76

 
1.53 Years

 
$
106
Schedule of Nonvested Share Activity [Table Text Block]
The following table provides summary data of nonvested stock award activity:
 
 
Number of
nonvested
shares
 
Weighted
Average
grant date
Fair
Value
 
Weighted
Average
Remaining
Contractual
Term 
 
Aggregate
Intrinsic
Value 
(in thousands)
 
 
Nonvested shares outstanding at September 30, 2014
149,375

 
$
6.92

 
2.45 years

 
$
1,191

Activity in 2015:
 

 
 

 
 

 
 

Granted
57,500

 
$
5.05

 
—

 
—

Vested
(58,296
)
 
$
6.82

 
—

 
—

Forfeited
(18,122
)
 
7.38

 
—

 
—

Nonvested shares outstanding at September 30, 2015
130,457

 
$
6.08

 
2.12 Years

 
$
714

Activity in 2016:
 

 
 

 
 

 
 

Granted
105,395

 
$
6.47

 
—

 
—

Vested
(48,444
)
 
$
6.33

 
—

 
—

Forfeited
(21,700
)
 
7.38

 
—

 
—

Nonvested shares outstanding at September 30, 2016
165,708

 
$
6.38

 
2.20 Years

 
$
1,695

Vested at September 30, 2016
179,277

 
$
5.57

 
0.36 Years

 
$
1,834

Vested and expected to vest at September 30, 2016
344,985

 
$
5.96

 
1.24 Years

 
$
3,529