Organization and Basis of Presentation (Details Textual) (USD $)	1 Months Ended		3 Months Ended	10 Months Ended
	Mar. 15, 2013	Feb. 28, 2013	Mar. 31, 2013 system Installation Customers	Mar. 31, 2013 system Installation Customers	Feb. 11, 2013	Dec. 31, 2012		Mar. 31, 2012	Dec. 31, 2011
Organization and Summary of Significant Accounting Policies [Line Items]
Loan payable	$ 5,300,000
Organization and Basis of Presentation (Textual) [Abstract]
Number customers with user agreement			138	138
Number of systems installed			126	126
Number of systems installation pending			12	12
Number of common stock shares sold through public offering		6,100,000		6,600,000
Gross proceeds issuance of common stock		7,900,000		14,400,000
Net proceeds from issuance of common stock		7,300,000		13,800,000
Price of public offering		$ 1.30
Fully vested options					900,000
Maturity period of loan	42 months
Bear interest rate			10.45%	10.45%
Time period of interest payment			First 12 months
Number of payments of principal and interest until maturity			30 equal payments of principal and interest
Warrants issued to purchase common stock	693,202
Warrant issued to purchase Common share exercise price	1.118
Expiry date for warrants outstanding			Apr. 26, 2018
Warrant obligation total	563,000		547,150	547,150
Expected volatility rate			76.83%
Maturity period of warrant			5 years
Interest rate of return			0.84%
Change in unobservable inputs			10.00%
Cost of loan discount			727,000	727,000
Lender fee			425,000	425,000
Cash and cash equivalents			21,647,046	21,647,046		7,861,524	[1]	22,301,266	27,996,871
Venture Capital Funds [Member]
Organization and Summary of Significant Accounting Policies [Line Items]
Loan payable, maximum	10,000,000
March 2013 [Member]
Organization and Summary of Significant Accounting Policies [Line Items]
Loan payable	6,000,000
March 2014 [Member]
Organization and Summary of Significant Accounting Policies [Line Items]
Future loan payable	4,000,000
ATM Program [Member]
Organization and Summary of Significant Accounting Policies [Line Items]
Number of common stock issued through company ATM program			4,700,000
Proceeds from sale of common stock, Gross			8,800,000	8,800,000
Proceeds from sale of common stock, Net			8,500,000	8,500,000
Organization and Basis of Presentation (Textual) [Abstract]
Net proceeds from issuance of common stock			$ 13,800,000
Maximum [Member]
Organization and Summary of Significant Accounting Policies [Line Items]
Interest rate during the period			10.45%
Stock price			$ 1.18	$ 1.18
Exercise price of share			$ 1.16	$ 1.16
Minimum [Member]
Organization and Summary of Significant Accounting Policies [Line Items]
Stock price			$ 1.16	$ 1.16
Exercise price of share			$ 1.15	$ 1.15

[1] Derived from the audited balance sheet as of December 31, 2012