Stock Options and Restricted Stock Units (Tables)

12 Months Ended

Dec. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

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

The following table summarizes the activity in common shares subject to options and warrants:

	Year Ended December 31,
	2017				2016
			Weighted				Weighted
			average exercise				average exercise
	Shares		price		Shares		price
Outstanding at beginning of year		1,015,000	$	0.67		5,025,000	$	14.95
Granted		-		-		1,000,000		0.65
Exercised		-		-		-		-
Forfeited		-		-		5,010,000		14.95
Outstanding at end of year		1,015,000	$	0.67		1,015,000	$	0.67
Optons exercisable at end of year		1,015,000	$	0.67		1,015,000	$	0.67

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

Information about stock options and warrants outstanding at December 31, 2017 is summarized as follows:

		Options and Warrants Outstanding and Exercisable
				Weighted average
				remaining			Weighted
				contractual life			average		Aggregate Intrinsic
Exercise price		Number outstanding		(Years)			exercise price		Value
$	2.13		10,000		NA	(1)	$	2.13	$	-
$	2.25		5,000		NA	(1)		2.25		-
$	0.65		1,000,000		1			0.65		280,000
			1,015,000						$	280,000

(1) Options currently issued pursuant to the Company’s 2004 Employee Stock Option Plans have no expiration date.

Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block]

A summary of the status of our non-vested RSU grants issued under our 2006 Plan is presented below:

	Year Ended December 31,
	2017				2016
			Weighted				Weighted
			average exercise				average exercise
	Shares		price		Shares		price
Nonvested at beginning of year		152,000	$	0.56		4,000	$	2.12
Granted		-		-		372,040		0.64
Vested		(18,750)		0.56		(124,040)		0.83
Forfeited		(132,750)		0.56		(100,000)		1.24
Outstanding at end of year		500	$	0.56		152,000	$	0.56