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 | |||||