Unrecognized cost of unvested share-based compensation awards.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ 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)(1)(iii)
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- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Stock-Based Compensation - Options Outstanding and exercisable (Details) - 2008 LTIP - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Stock Options
Stock-based compensation
Contractual term of option awards		10 years
Additional disclosures
Number Outstanding		540,625	90,625	93,750
Weighted Average Remaining Contractual Life		7 years 11 months 27 days
Weighted Average Exercise Price		$ 2.18	$ 4.95	$ 4.94
Aggregate Intrinsic Value		$ 9,000
Number Outstanding (Exercisable)		90,625	90,625
Weighted Average Exercise Price (Exercisable)		$ 4.95	$ 4.95
Stock Options \| January 21, 2009
Additional disclosures
Number Outstanding		9,375
Weighted Average Remaining Contractual Life		2 years 18 days
Weighted Average Exercise Price		$ 4.00
Number Outstanding (Exercisable)		9,375
Weighted Average Exercise Price (Exercisable)		$ 4.00
Stock Options \| March 18, 2009
Additional disclosures
Number Outstanding		75,000
Weighted Average Remaining Contractual Life		2 years 2 months 16 days
Weighted Average Exercise Price		$ 4.98
Number Outstanding (Exercisable)		75,000
Weighted Average Exercise Price (Exercisable)		$ 4.98
Stock Options \| January 21, 2010
Additional disclosures
Number Outstanding		6,250
Weighted Average Remaining Contractual Life		3 years 18 days
Weighted Average Exercise Price		$ 6.00
Number Outstanding (Exercisable)		6,250
Weighted Average Exercise Price (Exercisable)		$ 6.00
Stock Options \| February 24, 2016
Additional disclosures
Number Outstanding		450,000
Weighted Average Remaining Contractual Life		9 years 1 month 24 days
Weighted Average Exercise Price		$ 1.62
Restricted stock \| Chief Executive Officer
Stock-based compensation
Restricted stock award (in shares)	120,483
Additional disclosures
Unrecognized compensation cost		$ 145
Restricted stock \| Chief Executive Officer \| Two-year period
Stock-based compensation
Vesting period of stock award	2 years
Restricted stock award (in shares)	100,000
Restricted stock \| Chief Executive Officer \| Three-year period
Stock-based compensation
Vesting period of stock award	3 years
Restricted stock award (in shares)	20,483