Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

v3.5.0.2
Basis of Presentation (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Oct. 21, 2016
Apr. 22, 2016
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Mar. 31, 2016
Mar. 31, 2015
Loss from operations     $ (5,716) $ (7,649) $ (10,085) $ (13,469)    
Cash and cash equivalents     11,106 $ 10,599 11,106 10,599 $ 11,704 $ 32,221
Cash and cash equivalents including restricted cash     16,100   16,100   16,700  
Cash and cash equivalents and restricted cash excluding outstanding credit facility     $ 9,900   9,900   7,200  
Net proceeds from offering of common stock and warrants $ 6,800 $ 13,100     $ 13,113 $ 1,244    
Net proceeds from sale of the common stock, after deducting fees and other offering expenses (in dollars)             $ 12,700  
Minimum                
Minimum period for which cash and cash equivalents are believed to be sufficient to meet the entity's cash needs         12 months