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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2017
Stock-Based Compensation |
Summary of stock-based compensation expense |
|  | Year Ended December 31, |
|  | 2017 |  | 2016 |  | 2015 |
Stock options |  | $ | — |  | $ | 42 |  | $ | — |
Restricted stock awards |  |  | 495 |  |  | 347 |  |  | 363 |
Restricted stock unit awards |  |  | 161 |  |  | 73 |  |  | 526 |
Common stock awards |  |  | 320 |  |  | 417 |  |  | 267 |
Total compensation expense |  | $ | 976 |  | $ | 879 |  | $ | 1,156 |
Summary of Company's employee stock options and activity |
|  |  | Number of Stock Options |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Term in Years |
Balance as of December 31, 2016 |  |  | 369,464 |  | $ | 12.70 |  |  |  |
Forfeited |  |  | (25,731) |  | $ | 11.42 |  |  |  |
Expired |  |  | (32,810) |  | $ | 16.79 |  |  |  |
Balance as of December 31, 2017 |  |  | 310,923 |  | $ | 12.37 |  |  | 1.23 |
Exercisable as of December 31, 2017 |  |  | 310,923 |  | $ | 12.37 |  |  | 1.23 |
Summary of the Company's nonvested non-participating restricted stock awards |
|  |  | Number of Restricted Stock Awards |  |  | Weighted Average Grant Date Fair Value |
Nonvested as of December 31, 2016 |  |  | 87,000 |  | $ | 2.96 |
Vested |  |  | (10,833) |  | $ | 7.00 |
Forfeited |  |  | (5,000) |  | $ | 2.96 |
Nonvested as of December 31, 2017 |  |  | 71,167 |  | $ | 4.19 |
Summary of the Company's nonvested restricted stock unit awards |
|  |  | Number of Restricted Stock Unit Awards |  |  | Weighted Average Grant Date Fair Value |
Nonvested as of December 31, 2016 |  |  | 253,315 |  | $ | 4.24 |
Granted |  |  | 227,000 |  | $ | 3.96 |
Vested |  |  | (81,615) |  | $ | 6.58 |
Forfeited |  |  | (5,000) |  | $ | 3.97 |
Nonvested as of December 31, 2017 |  |  | 393,700 |  | $ | 3.60 |
Summary of common shares with immediate vesting granted to outside directors and employees |
|  |  | Number of Common Stock Awards |  |  | Weighted Average Grant Date Fair Value |
Year ended December 31, 2017 |  |  | 67,498 |  | $ | 4.74 |
Year ended December 31, 2016 |  |  | 66,200 |  | $ | 6.31 |
Year ended December 31, 2015 |  |  | 58,937 |  | $ | 4.53 |

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for stock awards granted to employees and outside directors that were outstanding at the beginning and end of the year. + References No definition available. + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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