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STOCKHOLDERS' EQUITY Share-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2017
Share-based Compensation, Stock Options, Activity [Table Text Block]
Information with respect to option shares granted under all the Company’s stock incentive plans for the nine months ended September 30, 2017 was as follows:
 
Time-Based Shares
Performance-Based Shares
Total Shares
Weighted-
Average
Exercise
Price
Weighted-
Average
Remaining
Contractual
Term (years)
Aggregate
Intrinsic
Value
(in thousands)
Options outstanding at January 1, 2017
2,847,502

—

2,847,502

$10.43
 
 
Granted
—

—

—

$—
 
 
Exercised
—

—

—

$—
 
 
Forfeited or canceled
(513,285
)
—

(513,285
)
$13.49
 
 
Options outstanding at September 30, 2017
2,334,217

—

2,334,217

$9.75
2.51
$—
Options vested at September 30, 2017 or expected to vest
 
 
2,334,217

$9.75
2.51
$—
Options exercisable at September 30, 2017
 
 
2,315,467

$9.77
2.51
$—
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
Information with respect to the Company’s non-vested restricted stock units for the nine months ended September 30, 2017 was as follows:
 
Non-Vested Restricted Stock Units
 
Time-Based Shares
Performance-Based Shares
Total Shares
Weighted-
Average
Grant-Date
Fair Value
Weighted-
Average
Remaining
Contractual
Term (years)
Aggregate
Intrinsic
Value
(in thousands)
Non-vested at January 1, 2017
1,513,098

642,683

2,155,781

$6.85
 
 
Granted
1,130,596

639,703

1,770,299

$4.61
 
 
Vested
(538,384
)
—

(538,384
)
$7.84
 
 
Forfeited
(70,142
)
(28,276
)
(98,418
)
$6.17
 
 
Non-vested at September 30, 2017
2,035,168

1,254,110

3,289,278

$5.16
0.86
$14,900
Expected to vest
 
 
2,674,871

$5.08
0.86
$12,117
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]
Stock-based compensation was included in the following captions in the Company’s condensed consolidated statements of operations for the three and nine months ended September 30, 2017 and 2016 (in thousands):
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2017
 
2016
 
2017
 
2016
Cost of products revenues
$
14

 
$
12

 
$
39

 
$
43

Cost of services revenues
49

 
145

 
508

 
445

Research and development expenses
222

 
73

 
474

 
222

Marketing and selling expenses
582

 
547

 
1,375

 
1,508

General and administrative expenses
1,614

 
951

 
3,478

 
3,898

 
$
2,481

 
$
1,728

 
$
5,874

 
$
6,116