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Share-Based Compensation (Stock Option Activity) (Details) - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Dec. 31, 2013
Options
Outstanding, beginning balance	12,000	51,000
Granted	0	0
Exercised	(12,000)	(39,000)
Expired	0	0
Forfeited	0	0
Outstanding, ending balance	0	12,000	51,000
Exercisable	0	12,000
Weighted Average Exercise Price
Outstanding, beginning	$ 25.00	$ 24.24
Granted	0.00	0.00
Exercised	25.00	24.00
Expired	0.00	0.00
Forfeited	0.00	0.00
Outstanding, ending	0.00	25.00	$ 24.24
Exercisable	$ 0.00	$ 25.00
Weighted Average Remaining Contractual Life (Years)
Outstanding		1 month 17 days	10 months 17 days
Exercisable		1 month 17 days

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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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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.

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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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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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

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Number of options outstanding, including both vested and non-vested options.

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

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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