Stockholders' Equity (Tables)
|
12 Months Ended |
Dec. 31, 2012
|
Dec. 31, 2011
|
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |
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Weighted
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Weighted
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Average
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Average
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Options Outstanding
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Exercise
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Fair
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Price
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Value
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Beginning of the year
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1,674,065
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$
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11.37
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$
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10.74
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Granted
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Exercised
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Forfeited
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(167
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)
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$
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6.30
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$
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5.67
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Expired
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(34,056
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)
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$
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9.42
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$
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7.48
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End of year
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1,639,842
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$
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11.46
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$
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10.85
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Options exercisable
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1,523,536
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$
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11.82
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$
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11.22
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Weighted
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Weighted
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Average
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Average
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Options Outstanding
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Exercise
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Fair
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Price
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Value
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Beginning of the year
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1,772,348
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$
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11.81
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$
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11.04
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Granted
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87,887
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$
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5.51
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4.88
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Exercised
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Forfeited
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(2,833
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)
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$
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8.58
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$
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7.73
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Expired
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(183,337
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)
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$
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12.90
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$
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10.96
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End of year
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1,674,065
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$
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11.37
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$
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10.74
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Options exercisable
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1,345,541
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$
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12.62
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$
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11.99
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Schedule of Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] |
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Stock Options Outstanding
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Stock Options Vested
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Weighted
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Weighted
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Average
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Average
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Remaining
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Weighted
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Remaining
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Weighted
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Contractual
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Contractual
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Number
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Average
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Number
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Average
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Life
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Life
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of
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of
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-Years
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Awards
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Exercise
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-Years
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Awards
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Exercise
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Price
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Price
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Exercise Prices
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$4.50
- $8.70
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6.27
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844,801
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$
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6.33
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6.04
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728,495
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$
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6.27
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$9.00
- $12.90
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4.94
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130,037
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$
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10.46
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4.94
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130,037
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$
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10.46
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$13.50
-$18.90
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3.3
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358,336
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$
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14.17
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3.3
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358,336
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$
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14.17
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$19.20
-$23.85
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2.65
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306,668
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$
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22.84
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2.65
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306,668
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$
|
22.84
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Total
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4.84
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1,639,842
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$
|
11.46
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4.62
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1,523,536
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$
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11.82
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Stock Options Outstanding
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Stock Options Vested
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Weighted
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Weighted
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Average
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Average
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Remaining
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Weighted
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Remaining
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Weighted
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Contractual
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Contractual
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Number
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Average
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Number
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Average
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Life
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Life
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of
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of
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-Years
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Awards
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Exercise
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-Years
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Awards
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Exercise
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Price
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Price
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Exercise Prices
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$4.50
- $8.70
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7.07
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|
871,195
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$
|
6.38
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6.44
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542,671
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6.48
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$9.00
- $12.90
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|
5.08
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|
152.340
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$
|
10.51
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5.08
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152,340
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10.51
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$13.50
-$18.90
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4.26
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343,862
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$
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14.14
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4.26
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343,862
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14.14
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$19.20
-$23.85
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3.65
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306,668
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$
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22.84
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3.65
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306,668
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|
22.84
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Total
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5.69
|
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1,674,065
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$
|
11.37
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|
|
5.09
|
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|
1,345,541
|
|
|
12.62
|
|
|
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] |
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Weighted
|
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|
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Average
|
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|
|
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Grant
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Date Fair
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Number of
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Value
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Units
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Total awards outstanding at December 31, 2011 |
|
120,021
|
|
$ |
6.14
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|
Units granted |
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|
$ |
|
|
Units Exercised/Released |
|
(76,989
|
) |
$ |
5.95
|
|
Units Cancelled/Forfeited |
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|
$ |
|
|
Total awards outstanding at December 31, 2012 |
|
43,032
|
|
$ |
6.49
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|
|
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Total units vested |
|
-
|
|
|
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Total units non-vested |
|
43,032
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|
$ |
6.49
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|
Total shares outstanding at December 31, 2012 |
|
43,032
|
|
$ |
6.49
|
|
|
|
Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Restricted Stock Units, Vested and Expected to Vest [Table Text Block] |
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|
Year Ended |
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|
December 31, |
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2013 |
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2014 |
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2015 |
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2016 |
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Thereafter |
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Total |
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Scheduled vesting—restricted stock units |
|
28,739
|
|
|
14,293
|
|
|
-
-
|
|
|
|
|
|
-
-
|
|
|
43,032
|
|
|
|
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|
Year Ended
|
|
12/31/2011
|
|
|
Average risk-free interest rate |
3.35%
|
Average expected life- years |
10
|
Expected volatility |
94.32%
|
Expected dividends |
0
|
|
|
Schedule of Share-based Compensation, Activity [Table Text Block] |
|
|
Shares of
|
|
|
Amount
|
|
|
|
Common
S
tock
|
|
|
|
|
|
|
|
|
|
|
|
Stock-based compensation |
|
2,264
|
|
$ |
3,125
|
|
|
|