Shareholders' Equity - Summary of Assumptions Used to Determine Fair Value of Warrants (Details) - Warrants [Member]	6 Months Ended	12 Months Ended
Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2013
Expected dividend	0.00%	0.00%	0.00%	0.00%
Minimum [Member]
Expected term	1 year 6 months	1 year 6 months	1 year 6 months	1 year 6 months
Volatility	26.00%	26.00%	26.00%	26.00%
Risk-free interest rate	0.25%	0.25%	12.00%	12.00%
Maximum [Member]
Expected term	5 years	5 years	5 years	5 years
Volatility	38.00%	38.00%	38.00%	38.00%
Risk-free interest rate	1.37%	1.37%	1.14%	1.14%

Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price).

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

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Risk-free interest rate assumption used in valuing an instrument.

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