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CONSOLIDATED STATEMENTS OF COMMON STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
CONSOLIDATED STATEMENTS OF COMMON STOCKHOLDERS' EQUITY [Abstract]
Conversion of Convertible Preferred Stock Value Per Share	$ 7.00	$ 8.00

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- Definition

Refers to per share value of conversion of convertible preferred stock.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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