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Stock Warrants (Summary of Warrant Activity) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012
Shares
Balance, end of year	2,146,000
Warrant [Member]
Shares
Balance, beginning of year	2,333,500
Granted
Exercised
Expired	(187,500)
Balance, end of year	2,146,000
Exercisable at December 31	2,146,000
Weighted Average Exercise Price
Balance, beginning of year	$ 3.47
Granted
Exercised
Expired	$ 3.5
Balance, end of year	$ 3.37
Exercisable at December 31	$ 3.37
Intrinsic Value
Balance, end of year
Exercisable at December 31

X

- Definition

Aggregate amount of each class of warrants or rights outstanding.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 4

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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Gross number of share options (or share units) granted during the period.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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