Stockholders' Equity (ESPP) (Details) - ESPP - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		9 Months Ended	12 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Sep. 30, 2015	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 55		$ 73	$ 129	$ 189
Expected dividend yield assumption (in Percent)				0.40%
Expected volatility assumption (in Percent)				24.35%
Risk-free interest rate assumption (in Percent)		0.02%		0.11%
Expected life assumption (in Years)		3 months		6 months
Forecast
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate assumption (in Percent)						0.18%	0.25%
Expected life assumption (in Years)						9 months	1 year