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v3.19.1

Stock-Based Compensation (Details 2) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Stock Options |  |
Options activity |  |
Outstanding at beginning of period (in shares) | 308,967 | 370,547
Granted in period (in shares) | 14,821 | 33,855
Exercised in period (in shares) | 0 | 0
Unvested options forfeited in period (in shares) | (61,286) | (9,872)
Vested options expired in period (in shares) | (91,133) | (85,563)
Outstanding at end of period (in shares) | 171,369 | 308,967
Vested and expected to vest at end of period (in shares) | 171,369 |
Exercisable at end of period (in shares) | 128,105 |
Weighted average exercise price |  |
Outstanding at beginning of period (in dollars per share) | $ 60.80 | $ 77.23
Granted in period (in dollars per share) | 7.40 | 10.00
Exercised in period (in dollars per share) | 0.00 | 0.00
Unvested options forfeited in period (in dollars per share) | 37.13 | 73.31
Vested options expired in period (in dollars per share) | 68.28 | 110.44
Outstanding at end of period (in dollars per share) | 60.66 | $ 60.80
Vested and expected to vest at end of period (in dollars per share) | 60.66 |
Exercisable at end of period (in dollars per share) | $ 76.48 |
Weighted average remaining contractual term |  |
Outstanding at end of period | 4 years 6 months 22 days |
Vested and expected to vest at end of period | 4 years 6 months 22 days |
Exercisable at end of period | 3 years 1 month 17 days |
Aggregate Intrinsic Value |  |
Intrinsic value of exercises in period | $ 0 | $ 0
Intrinsic value of options outstanding | 0 |
Intrinsic value of options vested and expected to vest | 0 |
Intrinsic value of options exercisable | $ 0 |
Fair value assumptions |  |
Expected term | 5 years 2 months 23 days | 6 years 3 months
Expected stock price volatility (as percent) | 55.07% | 53.70%
Risk-free interest rate (as percent) | 2.96% | 2.16%
Cash Stock Appreciation Rights |  |
Options activity |  |
Outstanding at beginning of period (in shares) | 86,618 | 0
Granted in period (in shares) | 0 | 86,618
Exercised in period (in shares) | 0 | 0
Unvested options forfeited in period (in shares) | (62,852) | 0
Vested options expired in period (in shares) | (11,090) |
Outstanding at end of period (in shares) | 12,676 | 86,618
Exercisable at end of period (in shares) | 3,169 |
Weighted average exercise price |  |
Outstanding at beginning of period (in dollars per share) | $ 9.70 | $ 0.00
Granted in period (in dollars per share) | 0.00 | 9.70
Exercised in period (in dollars per share) | 0.00 | 0.00
Unvested options forfeited in period (in dollars per share) | 9.70 | 0.00
Vested options expired in period (in dollars per share) | 9.70 |
Outstanding at end of period (in dollars per share) | 9.70 | $ 9.70
Exercisable at end of period (in dollars per share) | $ 9.70 |
Weighted average remaining contractual term |  |
Outstanding at end of period | 8 years 5 months 23 days | 9 years 5 months 23 days
Exercisable at end of period | 8 years 5 months 23 days |
Restricted Stock Units |  |
Award activity |  |
Outstanding at beginning of period (in shares) | 201,222 | 94,543
Granted in period (in shares) | 72,549 | 160,962
Vested (settled) in period (in shares) | (56,219) | (40,979)
Forfeited in period (in shares) | (110,137) | (13,304)
Outstanding at end of period (in shares) | 107,415 | 201,222
Weighted average grant date fair value |  |
Outstanding at beginning of period (in dollars per share) | $ 15.23 | $ 37.59
Granted in period (in dollars per share) | 9.51 | 9.81
Vested (settled) in period (in dollars per share) | 19.28 | 41.39
Forfeited in period (in dollars per share) | 14.54 | 27.84
Outstanding at end of period (in dollars per share) | $ 9.98 | $ 15.23
Phantom Stock Units |  |
Award activity |  |
Outstanding at beginning of period (in shares) | 82,037 | 53,164
Granted in period (in shares) | 0 | 56,000
Vested (settled) in period (in shares) | (19,992) | (12,483)
Forfeited in period (in shares) | (29,234) | (14,644)
Outstanding at end of period (in shares) | 32,811 | 82,037
Weighted average grant date fair value |  |
Outstanding at beginning of period (in dollars per share) | $ 15.92 | $ 26.90
Granted in period (in dollars per share) | 0.00 | 9.70
Vested (settled) in period (in dollars per share) | 17.85 | 26.90
Forfeited in period (in dollars per share) | 16.32 | 22.63
Outstanding at end of period (in dollars per share) | $ 14.39 | $ 15.92
Performance Stock Units |  |
Award activity |  |
Outstanding at beginning of period (in shares) | 163,060 | 84,430
Granted in period (in shares) | 11,904 | 89,124
Vested (settled) in period (in shares) | 0 | 0
Forfeited in period (in shares) | (136,435) | (10,494)
Outstanding at end of period (in shares) | 38,529 | 163,060
Weighted average grant date fair value |  |
Outstanding at beginning of period (in dollars per share) | $ 15.59 | $ 25.56
Granted in period (in dollars per share) | 8.40 | 9.95
Vested (settled) in period (in dollars per share) | 0.00 | 0.00
Forfeited in period (in dollars per share) | 16.40 | 47.90
Outstanding at end of period (in dollars per share) | $ 10.50 | $ 15.59
Cash Performance Stock Units |  |
Award activity |  |
Outstanding at beginning of period (in shares) | 150,506 | 44,397
Granted in period (in shares) | 0 | 109,887
Vested (settled) in period (in shares) | 0 | 0
Forfeited in period (in shares) | (146,728) | (3,778)
Outstanding at end of period (in shares) | 3,778 | 150,506
Weighted average grant date fair value |  |
Outstanding at beginning of period (in dollars per share) | $ 14.63 | $ 26.90
Granted in period (in dollars per share) | 0.00 | 10.10
Vested (settled) in period (in dollars per share) | 0.00 | 0.00
Forfeited in period (in dollars per share) | 14.32 | 26.90
Outstanding at end of period (in dollars per share) | $ 26.90 | $ 14.63

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- Definition The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. + 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)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. + 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)(2) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the 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 (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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