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Intangible Assets, Amortization Expense (Details) (USD $)
 3 Months Ended 9 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Amortization and impairment of intangible assets [Abstract]        
Amortization expense $ 180,000 $ 194,000 $ 558,000 $ 580,000
Estimated future amortization expense for intangible assets subject to amortization [Abstract]        
2014 - remaining three months 180,000   180,000  
2015 670,000   670,000  
2016 349,000   349,000  
2017 266,000   266,000  
2018 266,000   266,000  
Thereafter 1,694,000   1,694,000  
Total $ 3,425,000   $ 3,425,000