Annual report pursuant to Section 13 and 15(d)

Net Loss per Common Share (Detail)

v3.5.0.1
Net Loss per Common Share (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Earnings Per Share [Abstract]                      
Net loss from continuing operations, net of taxes $ (5,828) $ (5,763) $ (8,322) $ (8,119) $ (9,351) $ (5,485) $ (5,201) $ (4,610) $ (28,032) $ (24,647) $ (17,202)
Weighted average common shares outstanding, basic and diluted (in shares) 66,278,000 65,979,000 57,274,000 57,388,000 43,219,000 37,799,000 37,504,000 37,424,000 61,763,000 38,967,000 27,478,000
Basic and diluted net loss per common share ($ per share) $ (0.09) $ (0.09) $ (0.14) $ (0.14) $ (0.22) $ (0.15) $ (0.14) $ (0.12) $ (0.46) $ (0.63) $ (0.68)
Common stock equivalents excluded from net loss per diluted share because their effect would have been anti-dilutive (in shares)                 1,438,355 1,574,372 1,169,555