(2) Share-Based Payment Arrangements (Details 2) (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Notes to Financial Statements
Number of Options Outstanding, Beginning	11,200,955	10,876,047	11,360,842		11,360,842
Number of Options Granted	15,000	1,812,000	70,000
Number of Options Exercised	0	0	310,000
Number of Options Forfeited	(2,473,830)	(1,334,592)	(224,795)
Number of Options Expired	(10,000)	(152,500)	(20,000)
Number of Options Outstanding, Ending	8,732,125	11,200,955	10,876,047		8,732,125
Number of Options Exercisable	5,854,660				5,854,660
Weighted Average Exercise Price Outstanding, Beginning	$ 4.25	$ 4.72	$ 4.66		$ 4.66
Weighted Average Exercise Price Granted	$ 1.15	$ 1.38	$ 2.31
Weighted Average Exercise Price Exercised	$ 0.00	$ 0.00	$ 2.25
Weighted Average Exercise Price Forfeited	$ 3.46	$ 4.04	$ 4.56
Weighted Average Exercise Price Expired	$ 6.30	$ 5.44	$ 3.96
Weighted Average Exercise Price Outstanding, Ending	$ 4.47	$ 4.25	$ 4.72		$ 4.47
Weighted Average Exercise Price Exercisable	$ 5.68				$ 5.68
Weighted Average Remaining Contractual Life (in years) Outstanding	5 years 9 months 7 days	5 years 11 months 5 days	6 years 1 month 17 days
Weighted Average Remaining Contractual Life (in years) Exercisable	4 years 2 months 1 day
Aggregate Intrinsic Value Outstanding, Beginning	$ 15,505	$ 1,136,141
Aggregate Intrinsic Value Exercised	0	0		0	121,819	266,862
Aggregate Intrinsic Value Outstanding, Ending	2,550	15,505	1,136,141		2,550
Aggregate Intrinsic Value Exercisable	$ 0				$ 0