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Equity Plans and Equity Based Compensation (Additional Information) (Details) |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Oct. 01, 2019 shares | Jun. 30, 2019 USD ($) Plan shares | Jun. 30, 2018 USD ($) shares | Jun. 30, 2019 USD ($) installment Plan shares | Jun. 30, 2018 USD ($) shares | Dec. 31, 2018 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, number of plans | Plan |  | 2 |  | 2 |  |
Number of options granted (in shares) |  | 0 | 0 | 0 | 0 |
Stock compensation expense | $ |  | $ 152,000 | $ 172,000 | $ 302,000 | $ 342,000 |
Unrecognized stock expenses in restricted stock | $ |  |  |  | 2,463,000 | 2,822,000 |
Stock Options |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock compensation expense | $ |  | 0 | 0 | 0 | 0 |
Unrecognized compensation expense | $ |  | $ 0 | $ 0 | $ 0 | $ 0 |
2009 LTIP Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares reserved for grant (in shares) |  | 0 |  | 0 |  |
Stock granted during period percentage |  |  |  | 60.00% |  |
Stock cash credit entitlement percentage |  |  |  | 40.00% |  |
Restricted stock granted during period (in shares) |  | 0 | 450 | 24,780 | 35,310 |
2009 LTIP Plan | Restricted Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of equal installments | installment |  |  |  | 3 |  |
Unvested restricted stock awards (in shares) |  | 69,462 |  | 69,462 |  | 44,682
2009 LTIP Plan | Restricted Stock | Director |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vested in period percentage |  |  |  | 100.00% |  |
2009 LTIP Plan | Restricted Stock | Installment 1 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vested in period percentage |  |  |  | 33.30% |  |
2009 LTIP Plan | Restricted Stock | Installment 2 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vested in period percentage |  |  |  | 33.30% |  |
2009 LTIP Plan | Restricted Stock | Installment 3 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vested in period percentage |  |  |  | 33.30% |  |
2019 LTIP Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares reserved for grant (in shares) |  | 1,000,000 |  | 1,000,000 |  |
2009 Employee Stock Purchase Plan | Employee Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares reserved for grant (in shares) |  | 539,293 |  | 539,293 |  |
Stock compensation expense | $ |  | $ 0 | $ 0 | $ 0 | $ 0 |
Unrecognized compensation expense | $ |  | $ 0 | $ 0 | $ 0 | $ 0 |
Discount from market price, offering date |  |  |  | 95.00% |  |
Number of shares authorized provided by the plan (in shares) |  | 750,000 |  | 750,000 |  |
2019 ESPP | Subsequent Event |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of shares reserved for grant (in shares) | 750,000 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Offering Period | 3 months |  |  |  |  |
Discount from market price, offering date | 95.00% |  |  |  |  |

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