Stock-Based Compensation (Details Textual) - USD ($) $ / shares in Units, $ in Millions | May 12, 2016 | May 31, 2016 | Jun. 30, 2016 | Dec. 31, 2015 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | | | 307,392 | |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term | 6 years 3 months | | | |
Share Price | $ 13.82 | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate | 33.00% | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate | 1.75% | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate | 5.60% | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | 10 years | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ 2.34 | | | |
Employee Stock Option [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | | | $ 13.74 | |
Management [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | | 2 years | | |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | | 2 years | | |
Employee [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | | 4 years | | |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | | 4 years | | |
Stock Unit Award [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Unamortized Fair Value (in dollars) | | | $ 1.3 | |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Unamortized Fair Value Period For Amortization | | | 3 years | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 16,600 | | | |
Number of Shares Acquired | 120,500 | | | |
Stock Incentive Plan 2006 [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | | | 350,000 | |
Common Stock, Capital Shares Reserved for Future Issuance | | | 541,517 | |
Stock Incentive Plan 2006 [Member] | Stock Unit Award [Member] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | | | | 70,232 |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | | | $ 13.74 | |