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Stockholders' Equity (Details 3) - Employee Stock Option [Member] - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Class of Stock [Line Items]
Non-vested stock options at January 1	466,009	201,859
Granted - Number of Options	171,900	409,200
Vested - Number of Options	(290,141)	(97,367)
Exercised - Number of Options	0	0
Forfeited/Expired/Exchanged - Number of Options	(12,485)	(47,683)
Non-vested stock options at December 31	335,283	466,009
Non-vested options - Weighted Average Grant Date Fair Value	$ 5.79	$ 6.57
Granted - Weighted Average Grant Date Fair Value	4.22	5.39
Vested - Weighted Average Grant Date Fair Value	5.67	5.16
Exercised - Weighted Average Grant Date Fair Value	0	0
Forfeited/Expired/Exchanged - Weighted Average Grant Date Fair Value	6.17	6.88
Non-vested options - Weighted Average Grant Date Fair Value	$ 5.09	$ 5.79

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- Definition

The weighted average fair value at grant date of nonvested stock options exercised during the period.

+ References

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Number of non vested options exercised during the period.

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Number of non vested options granted during the period.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ 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)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Number of non-vested options outstanding.

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Number of non-vested options forfeited.

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