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STOCKHOLDERS' EQUITY (Notes)
 6 Months Ended
Jun. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
STOCKHOLDERS’ EQUITY

Stock Repurchases

On June 8, 2015, the Company’s Board of Directors approved a stock repurchase plan authorizing the Company to repurchase up to $9.0 million of common stock in open market or other transactions from time to time until September 6, 2015 using a portion of the proceeds of the offering of the Notes. Share repurchases under the plan may be made through the open market, established plans or otherwise in accordance with all applicable securities laws, rules, and regulations. The stock repurchase plan does not permit the Company to repurchase any shares of common stock directly from directors or officers of the Company. Upon the repurchase of any shares of common stock, such shares are held as treasury stock of the Company. The Company entered into a stock repurchase agreement, which authorized a third party financial institution to repurchase shares of the Company’s common stock, on the Company’s behalf, on the open market in an aggregate amount not to exceed $8.0 million. The Company repurchased 480,601 shares for $6.6 million during June 2015 and had $1.4 million available for additional stock repurchases as of June 30, 2015. The Company completed the stock repurchase in July 2015. In aggregate 586,825 shares have been repurchased under the plan. At June 30, 2015, the Company had not settled the payment of these purchases and $6.6 million was included in the caption “accrued expenses and other current liabilities” in the Company’s condensed consolidated balance sheet.

Stock-Based Compensation

Information with respect to option shares granted under all the Company’s stock incentive plans for the six months ended June 30, 2015 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, 2015
5,564,111

—

5,564,111

$11.20
 
 
Granted
—

—

—

$—
 
 
Exercised
(196,486
)
—

(196,486
)
$11.64
 
 
Forfeited or canceled
(140,762
)
—

(140,762
)
$17.98
 
 
Options outstanding at June 30, 2015
5,226,863

—

5,226,863

$11.00
4.39
$20,155
Options vested at June 30, 2015 or expected to vest
 
 
5,099,932

$11.08
4.35
$19,443
Options exercisable at June 30, 2015
 
 
3,815,010

$12.17
3.92
$12,375


Information with respect to the Company’s non-vested restricted stock units for the six months ended June 30, 2015 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, 2015
811,880

—

811,880

$10.01
 
 
Granted
374,195

347,295

721,490

$15.19
 
 
Vested
(333,012
)
—

(333,012
)
$10.18
 
 
Forfeited
(210,272
)
(38,625
)
(248,897
)
$11.62
 
 
Non-vested at June 30, 2015
642,791

308,670

951,461

$13.46
0.93
$12,683
Expected to vest
 
 
864,317

$13.44
0.89
$11,521


Stock-based compensation was included in the following captions in the Company’s condensed consolidated statements of operations for the three and six months ended June 30, 2015 and 2014 (in thousands):
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2015
 
2014
 
2015
 
2014
Cost of products revenues
$
40

 
$
65

 
$
135

 
$
141

Cost of services revenues
175

 
98

 
334

 
175

Research and development expenses
46

 
113

 
152

 
240

Marketing and selling expenses
683

 
642

 
1,373

 
934

General and administrative expenses
1,938

 
1,218

 
3,350

 
1,908

 
$
2,882

 
$
2,136

 
$
5,344

 
$
3,398