Asset Purchase Agreement Narrative (Details) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	6 Months Ended
	Jun. 28, 2011	Jun. 30, 2012	Jun. 30, 2011 M D
Asset Purchase Agreement [Line Items]
Share issued for purchase of assets			769,000
Consideration for share issued		$ 0	$ 1,581
Trading Volume-Weighted Average Price			30
Common Stock, 30-day Trailing Volume-Weighted Average Price	$ 2.05
useful life of equipment		5 years
Repurchase Period, Asset Purchase Agreement			18
Maximum [Member]
Asset Purchase Agreement [Line Items]
Asset Purchase Agreement, Repurchase Rights, Percentage			50.00%