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Stock Based Compensation (Details) - USD ($) | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Dec. 31, 2019 | Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Number of shares authorized |  |  |  |  | 3,000,000 |  |
Weighted Average Grant Date Fair Value of Restricted Stock |  |  |  |  |  |  |
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation |  |  | 0 | 7,744 |  |  |
Stock Appreciation Rights (SARs) [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number |  |  |  |  | 194,846 | 222,112 |
Weighted Average Grant Date Fair Value of Restricted Stock |  |  |  |  |  |  |
Unvested balance at December 31, 2015, USD per share | $ 2.57 |  | $ 2.57 |  | $ 2.57 | $ 2.57 |
Unvested balance at Period End, USD per share | $ 2.57 |  | $ 2.57 |  |  |  |
Unrecognized compensation expense |  | $ 478,000 |  | $ 478,000 | $ 260,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term |  |  | 1 year 10 months |  |  |  |
Share-based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price |  |  |  |  | $ 10 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross |  |  | 0 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value |  |  | $ 0.00 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |  |  | 0 |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price |  |  | $ 0.00 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price |  |  |  |  | $ 2.57 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period |  |  | (27,266) |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Weighted Average Grant Date Fair Value |  |  | $ 2.57 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number |  |  |  |  | 84,300 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term |  |  | 3 years 10 months |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value |  |  |  |  | $ 0 |  |
Stock Appreciation Rights (SARs) [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Compensation costs | $ 31,000 | 103,000 | $ 55,000 | 103,000 |  |  |
Restricted Stock [Member] |  |  |  |  |  |  |
Restricted Stock Rollforward, Shares |  |  |  |  |  |  |
Unvested balance at December 31, 2016 |  |  | 343,919 |  |  |  |
Granted |  |  | 287,750 |  |  |  |
Vested |  |  | (87,344) |  |  |  |
Forfeited |  |  | (8,385) |  |  |  |
Unvested balance at Period End | 535,940 |  | 535,940 |  |  |  |
Weighted Average Grant Date Fair Value of Restricted Stock |  |  |  |  |  |  |
Unvested balance at December 31, 2015, USD per share | $ 6.54 |  | $ 6.54 |  | $ 6.54 | $ 9.37 |
Granted, USD per share |  |  | 4.62 |  |  |  |
Vested, USD per share |  |  | 10.69 |  |  |  |
Forfeited, USD per share |  |  | 13.72 |  |  |  |
Unvested balance at Period End, USD per share | $ 6.54 |  | $ 6.54 |  |  |  |
Unrecognized compensation expense |  |  |  |  | $ 2,249,000 |  | $ 2,736,000
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term |  |  | 2 years 7 months |  |  |  |
Restricted Stock [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Compensation costs | $ 357,000 | $ 413,000 | $ 649,000 | $ 763,000 |  |  |

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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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