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Note 18 - Stock Option and Purchase Plans (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]

		Year ended December 31,
		2016				2015
Expected life (years)			4.0				4.0
Expected volatility			52.0	%			50.2	%
Risk-free interest rates			1.42	%			1.32	%
Expected dividend yield			0.0	%			0.0	%

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

						Weighted
						Average
		Number of				Grant Date
		Shares				Fair Value
Nonvested shares at January 1, 2016			1,074,700			$	3.19
Granted			793,500				1.00
Vested			(609,200	)			3.50
Forfeited			(94,000	)			2.03
Nonvested shares at December 31, 2016			1,165,000			$	1.49

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

						Weighted-				Weighted-
						average				average				Aggregate
		Number of				Exercise Price				Remaining				Intrinsic
		Shares				Per Share				Term				Value
Outstanding at January 1, 2016			1,222,000			$	3.38
Granted			993,500				0.97
Exercised			0				0
Forfeited			(62,500	)			1.95
Expired			(244,750	)			4.14
Outstanding at December 31, 2016			1,908,250			$	2.07				2.54			$	0
Exercisable at December 31, 2016			561,550			$	3.52				0.90			$	0

X

- Definition

Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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

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- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ 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)
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+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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