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Stockholders' Equity (Narrative) (Details)
1 Months Ended 3 Months Ended
Jun. 10, 2014
shares
Jun. 05, 2013
shares
May. 31, 2014
USD ($)
Mar. 31, 2016
USD ($)
item
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Votes per share | item       1
Dividends declared       $ 0
Dividends paid       $ 0
2012 Stock Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Increase in number of shares authorized for issuance under the Plan | shares 1,000,000 1,000,000    
Stock award plans | shares       46,051
Total compensation cost not yet recognized       $ 2,300,000
Estimated forfeitures       $ 700,000
Weighted average amortization period of total compensation cost not yet recognized       4 years
September 9, 2015 Warrants Offering [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of common shares exercised upon conversion of warrants | shares       267,256
Gross proceeds from stock warrants exercised       $ 293,982
Sales Agreement [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Aggregate gross sales price     $ 18,000,000  
Commission percentage of gross proceeds     3.00%  
Gross proceeds from common stock sold       0
Remaining common stock available       $ 13,800,000