Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	March 31,
	2013	2012
Common stock options	786	754
RSUs	371	178
Warrants	923	935
Convertible notes	250	370
Total	2,330	2,237

Customer Concentration Risk [Member]

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

	Three Months Ended March 31,
Customer	2013	2012
A	40%	24%
	.

Credit Concentration Risk [Member]

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

Customer	March 31, 2013	December 31, 2012
A	32%	31%
B	10%	6%
C	─	12%

Supplier Concentration Risk [Member]

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

	Three Months Ended March 31,
Vendor	2013	2012
A	16%	9%
B	16%	8%
C	13%	15%
D	13%	4%