The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(c)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)-(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(a)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(b)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(a)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

+ References

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- Definition

The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

+ References

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STOCK OPTIONS OUTSTANDING (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock options Outstanding		1,245,161	1,448,675
Weighted Average Exercise Price on Outstanding Options	$ 11.714	$ 12.129
Stock Options Exercisable		$ 11.054	$ 10.425
Weighted Average Exercise Price on Exercisable Options	$ 10.963	$ 11.054
$ 2.70 - $ 6.76
Stock options Outstanding	231,048
Average Remaining Contractual Life in Years	$ 5.89
Weighted Average Exercise Price on Outstanding Options	$ 5.034
Stock Options Exercisable	$ 194,647
Weighted Average Exercise Price on Exercisable Options	$ 4.973
$ 6.77 - $ 8.48
Stock options Outstanding	180,923
Average Remaining Contractual Life in Years	$ 7.68
Weighted Average Exercise Price on Outstanding Options	$ 7.547
Stock Options Exercisable	$ 93,870
Weighted Average Exercise Price on Exercisable Options	$ 7.581
$ 8.49 - $ 9.02
Stock options Outstanding	239,067
Average Remaining Contractual Life in Years	$ 4.87
Weighted Average Exercise Price on Outstanding Options	$ 8.687
Stock Options Exercisable	$ 163,651
Weighted Average Exercise Price on Exercisable Options	$ 8.738
$ 9.03 - $ 15.90
Stock options Outstanding	250,780
Average Remaining Contractual Life in Years	$ 2.92
Weighted Average Exercise Price on Outstanding Options	$ 13.147
Stock Options Exercisable	$ 246,206
Weighted Average Exercise Price on Exercisable Options	$ 13,192
$ 15.91 - $ 31.50
Stock options Outstanding	215,073
Average Remaining Contractual Life in Years	$ 2.04
Weighted Average Exercise Price on Outstanding Options	$ 20.191
Stock Options Exercisable	$ 215,073
Weighted Average Exercise Price on Exercisable Options	$ 20.191
$ 2.70 - $31.50
Stock options Outstanding	1,116,891
Average Remaining Contractual Life in Years	$ 4.55
Weighted Average Exercise Price on Outstanding Options	$ 10.963
Stock Options Exercisable	$ 913,447
Weighted Average Exercise Price on Exercisable Options	$ 11.714