Stock-based Compensation (Tables)

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Schedule of 1997 Recruitment Stock Option Plan [Table Text Block]

	2013		2012
Options outstanding, beginning of year	228,198		231,198
Options exercised	—		(1,750	)
Options expired	(228,198	)	(1,250	)
Options outstanding, end of year	—		228,198

Schedule of 2003 Stock Option and Appreciation Rights Plan [Table Text Block]

	2013		2012
Options outstanding, beginning of year	1,565,000		1,430,000
Options granted	200,000		415,000
Options exercised	(30,000	)	(30,000	)
Options forfeited	(280,000	)	(250,000	)
Options expired	(180,000	)	—
Options outstanding, end of year	1,275,000		1,565,000

Schedule of 2010 Non-Qualified Stock Option Plan [Table Text Block]

	2013		2012
Options outstanding, beginning of year	1,250,000		1,250,000
Options forfeited	(1,250,000	)	—
Options outstanding, end of year	—		1,250,000

Schedule of Other Stock Options Issued [Table Text Block]

	2013	2012
Options outstanding, beginning of year	625,000	—
Options granted	—	625,000
Options outstanding, end of year	625,000	625,000

Disclosure of Compensation Related Costs, Share-based Payments [Table Text Block]

	2013	2012
Risk-free interest rate	0.39% - 0.40%	0.36% - 0.51%
Expected life (years)	4.75	4.75
Expected volatility	124% - 125%	133% - 135%
Expected dividend yield	Zero	Zero
Expected forfeitures	Zero	Zero

Schedule of Changes in Common Stock Options [Table Text Block]

	2013				2012
				Weighted				Weighted
				Average				Average
				Exercise				Exercise
	Options			Price	Options			Price
Outstanding at beginning of year	3,898,198		$	1.75	3,141,198		$	1.65
Granted	200,000		$	1.00	1,040,000		$	2.04
Exercised	(30,000	)	$	0.51	(31,750	)	$	0.61
Expired	(408,198	)	$	0.85	(1,250	)	$	1.40
Forfeited	(1,530,000	)	$	1.91	(250,000	)	$	1.83
Outstanding at end of year	2,130,000		$	1.75	3,898,198		$	1.75
Options exercisable at year end	930,000		$	1.69	1,298,198		$	1.39
Weighted-average fair value of options granted during the year			$	0.76			$	1.75

Schedule of Nonvested Option Activity [Table Text Block]

				Weighted
				Average
				Grant Date
	Options			Fair Value
Unvested at December 31, 2012	2,600,000		$	1.23
Granted	200,000		$	0.76
Vested	(790,000	)	$	1.16
Forfeited	(810,000	)	$	0.53
Unvested at December 31, 2013	1,200,000		$	1.67

				Weighted
				Average
				Grant Date
	Options			Fair Value
Unvested at December 31, 2011	2,350,000		$	0.83
Granted	1,040,000		$	1.75
Vested	(540,000	)	$	0.87
Forfeited	(250,000	)	$	0.20
Unvested at December 31, 2012	2,600,000		$	1.23

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

		Weighted		Weighted		Weighted		Weighted
		Average		Average		Average		Average
	Options	Remaining		Exercise	Number	Remaining		Exercise
Exercise price	Outstanding	Life (years)		Price	Exercisable	Life (years)		Price
$0.08 to $0.15	80,000	2.75	$	0.12	70,000	2.68	$	0.12
$0.70 to $1.00	310,000	4.74	$	0.95	90,000	1.58	$	0.84
$1.83 to $2.00	1,740,000	4.83	$	1.97	770,000	4.68	$	1.94
	2,130,000	4.74	$	1.75	930,000	4.23	$	1.69