v2.4.0.6
Stockholders' Equity (Schedule of Stock Options Activity) (Details) (The Plans [Member], USD $)
 6 Months Ended
Sep. 30, 2012
Sep. 30, 2011
The Plans [Member]
    
Shares    
Options, beginning balance 1,025,000 800,000
Options granted 30,000 450,000
Options exercised      
Options forfeited      
Options expired      
Options, ending balance 1,055,000 1,250,000
Options exercisable 880,000 637,500
Weighted average exercise price    
Options, beginning balance $ 1.31 $ 1.58
Options granted $ 0.87 $ 1.01
Options exercised      
Options forfeited      
Options expired      
Options, ending balance $ 1.29 $ 1.38
Options exercisable $ 1.37 $ 1.55
Aggregate intrinsic value    
Options, beginning balance      
Options granted      
Options, ending balance     
Options exercisable     
Weighted average remaining contractual life (years)    
Options, beginning balance   3.73
Options granted   5
Options exercised      
Options, ending balance 3.42 4.18
Options exercisable 3.26 3.67