Quarterly report pursuant to sections 13 or 15(d)

Commitments and Contingencies (Details Textual)

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Commitments and Contingencies (Details Textual) (USD $)
 0 Months Ended 3 Months Ended
Jan. 16, 2014
Dec. 01, 2013
Mar. 01, 2013
Apr. 01, 2012
Mar. 31, 2014
ChargingStation
Mar. 31, 2013
Commitments (Textual)            
Term of future office lease 1 year 5 years 39 months 3 years    
Monthly lease payments $ 4,000 $ 10,300 $ 12,000 $ 2,500    
Lease commencing date Jan. 16, 2014 Dec. 01, 2013 Mar. 01, 2012 Apr. 01, 2012    
Lease expiration date Jan. 31, 2015 Nov. 30, 2018 May 31, 2015 Apr. 30, 2015    
Total rent expenses 48,000 621,000 468,000 92,000 103,307 44,954
Company commitment to purchase number of charging stations         500  
Number of units purchased under master agreement         90  
Amount paid to purchase charging stations per unit, minimum         2,500  
Amount paid to purchase charging stations per unit, maximum         2,700  
Reimbursement of price discount         $ 42,000