CONSOLIDATED STATEMENTS OF STOCKHOLDERS' DEFICIT - USD ($) $ in Thousands |
Total |
Previously Reported [Member] |
Restatement Adjustment [Member] |
Common Stock |
Common Stock
Previously Reported [Member]
|
Additional paid in Capital |
Additional paid in Capital
Previously Reported [Member]
|
Accumulated Deficit |
Accumulated Deficit
Previously Reported [Member]
|
Accumulated Deficit
Restatement Adjustment [Member]
|
Accumulated Other Comprehensive Loss |
Accumulated Other Comprehensive Loss
Previously Reported [Member]
|
Accumulated Other Comprehensive Loss
Restatement Adjustment [Member]
|
Balance at Mar. 31, 2016 |
$ (143,098)
|
$ (125,885)
|
|
$ 332
|
$ 332
|
$ 466,879
|
$ 466,879
|
$ (609,403)
|
$ (596,940)
|
|
$ (906)
|
$ 3,844
|
|
Balance, shares at Mar. 31, 2016 |
|
|
|
33,276,000
|
33,276,000
|
|
|
|
|
|
|
|
|
Cumulative restatement adjustments |
|
|
$ (17,213)
|
|
|
|
|
|
|
$ (12,463)
|
|
|
$ (4,750)
|
Net loss |
(2,408)
|
3,645
|
(6,053)
|
|
|
|
|
(2,408)
|
|
|
|
|
|
Foreign currency translation adjustments |
(770)
|
|
|
|
|
|
|
|
|
|
(770)
|
|
|
Shares issued under employee stock purchase plan |
1,019
|
|
|
$ 3
|
|
1,016
|
|
|
|
|
|
|
|
Shares issued under employee stock purchase plan, shares |
|
|
|
293,000
|
|
|
|
|
|
|
|
|
|
Shares issued under employee stock incentive plans, net |
|
|
|
$ 7
|
|
(7)
|
|
|
|
|
|
|
|
Shares issued under employee stock incentive plans, net, shares |
|
|
|
693,000
|
|
|
|
|
|
|
|
|
|
Shares surrendered in lieu of withholding taxes for stock incentive plans |
(737)
|
|
|
$ (2)
|
|
(735)
|
|
|
|
|
|
|
|
Shares surrendered in lieu of withholding taxes for stock incentive plans, shares |
|
|
|
(199,000)
|
|
|
|
|
|
|
|
|
|
Stock-based compensation expense |
6,698
|
|
|
|
|
6,698
|
|
|
|
|
|
|
|
Balance at Mar. 31, 2017 |
$ (139,296)
|
(115,999)
|
(23,297)
|
$ 340
|
|
473,851
|
|
(611,811)
|
|
|
(1,676)
|
|
|
Balance, shares at Mar. 31, 2017 |
34,063,000
|
|
|
34,063,000
|
|
|
|
|
|
|
|
|
|
Net loss |
$ (4,119)
|
(3,673)
|
(444)
|
|
|
|
|
|
|
|
|
|
|
Balance at Jun. 30, 2017 |
$ (141,559)
|
(117,998)
|
(23,561)
|
|
|
|
|
|
|
|
|
|
|
Balance, shares at Jun. 30, 2017 |
34,101,000
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Mar. 31, 2017 |
$ (139,296)
|
(115,999)
|
(23,297)
|
$ 340
|
|
473,851
|
|
(611,811)
|
|
|
(1,676)
|
|
|
Balance, shares at Mar. 31, 2017 |
34,063,000
|
|
|
34,063,000
|
|
|
|
|
|
|
|
|
|
Net loss |
$ (9,218)
|
(11,537)
|
2,319
|
|
|
|
|
|
|
|
|
|
|
Balance at Sep. 30, 2017 |
$ (145,479)
|
(124,334)
|
21,145
|
|
|
|
|
|
|
|
|
|
|
Balance, shares at Sep. 30, 2017 |
34,663,000
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Mar. 31, 2017 |
$ (139,296)
|
(115,999)
|
(23,297)
|
$ 340
|
|
473,851
|
|
(611,811)
|
|
|
(1,676)
|
|
|
Balance, shares at Mar. 31, 2017 |
34,063,000
|
|
|
34,063,000
|
|
|
|
|
|
|
|
|
|
Net loss |
$ (19,417)
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Dec. 31, 2017 |
$ (152,704)
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance, shares at Dec. 31, 2017 |
35,077,000
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Mar. 31, 2017 |
$ (139,296)
|
(115,999)
|
(23,297)
|
$ 340
|
|
473,851
|
|
(611,811)
|
|
|
(1,676)
|
|
|
Balance, shares at Mar. 31, 2017 |
34,063,000
|
|
|
34,063,000
|
|
|
|
|
|
|
|
|
|
Net loss |
$ (43,346)
|
|
|
|
|
|
|
(43,346)
|
|
|
|
|
|
Foreign currency translation adjustments |
1,402
|
|
|
|
|
|
|
|
|
|
1,402
|
|
|
Shares issued under employee stock purchase plan |
1,715
|
|
|
$ 3
|
|
1,712
|
|
|
|
|
|
|
|
Shares issued under employee stock purchase plan, shares |
|
|
|
316,000
|
|
|
|
|
|
|
|
|
|
Shares issued under employee stock incentive plans, net |
(1,816)
|
|
|
$ 11
|
|
(1,827)
|
|
|
|
|
|
|
|
Shares issued under employee stock incentive plans, net, shares |
|
|
|
1,064,000
|
|
|
|
|
|
|
|
|
|
Stock-based compensation expense |
5,990
|
|
|
|
|
5,990
|
|
|
|
|
|
|
|
Reclassification of liability classified warrants to equity |
1,884
|
|
|
|
|
1,884
|
|
|
|
|
|
|
|
Balance at Mar. 31, 2018 |
$ (173,467)
|
|
|
$ 354
|
|
481,610
|
|
(655,157)
|
|
|
(274)
|
|
|
Balance, shares at Mar. 31, 2018 |
35,443,000
|
|
|
35,443,000
|
|
|
|
|
|
|
|
|
|
Balance at Jun. 30, 2017 |
$ (141,559)
|
(117,998)
|
(23,561)
|
|
|
|
|
|
|
|
|
|
|
Balance, shares at Jun. 30, 2017 |
34,101,000
|
|
|
|
|
|
|
|
|
|
|
|
|
Net loss |
$ (5,099)
|
(7,863)
|
2,764
|
|
|
|
|
|
|
|
|
|
|
Balance at Sep. 30, 2017 |
$ (145,479)
|
$ (124,334)
|
$ 21,145
|
|
|
|
|
|
|
|
|
|
|
Balance, shares at Sep. 30, 2017 |
34,663,000
|
|
|
|
|
|
|
|
|
|
|
|
|
Net loss |
$ (10,199)
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Dec. 31, 2017 |
$ (152,704)
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance, shares at Dec. 31, 2017 |
35,077,000
|
|
|
|
|
|
|
|
|
|
|
|
|
Net loss |
$ (23,929)
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Mar. 31, 2018 |
$ (173,467)
|
|
|
$ 354
|
|
481,610
|
|
(655,157)
|
|
|
(274)
|
|
|
Balance, shares at Mar. 31, 2018 |
35,443,000
|
|
|
35,443,000
|
|
|
|
|
|
|
|
|
|
Net loss |
$ (7,485)
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Jun. 30, 2018 |
$ (181,413)
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance, shares at Jun. 30, 2018 |
35,443,000
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Mar. 31, 2018 |
$ (173,467)
|
|
|
$ 354
|
|
481,610
|
|
(655,157)
|
|
|
(274)
|
|
|
Balance, shares at Mar. 31, 2018 |
35,443,000
|
|
|
35,443,000
|
|
|
|
|
|
|
|
|
|
Net loss |
$ (29,103)
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Sep. 30, 2018 |
$ (201,648)
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance, shares at Sep. 30, 2018 |
35,556,000
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Mar. 31, 2018 |
$ (173,467)
|
|
|
$ 354
|
|
481,610
|
|
(655,157)
|
|
|
(274)
|
|
|
Balance, shares at Mar. 31, 2018 |
35,443,000
|
|
|
35,443,000
|
|
|
|
|
|
|
|
|
|
Net loss |
$ (33,387)
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Dec. 31, 2018 |
$ (196,238)
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance, shares at Dec. 31, 2018 |
35,553,000
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Mar. 31, 2018 |
$ (173,467)
|
|
|
$ 354
|
|
481,610
|
|
(655,157)
|
|
|
(274)
|
|
|
Balance, shares at Mar. 31, 2018 |
35,443,000
|
|
|
35,443,000
|
|
|
|
|
|
|
|
|
|
Net loss |
$ (42,797)
|
|
|
|
|
|
|
(42,797)
|
|
|
|
|
|
Foreign currency translation adjustments |
(1,136)
|
|
|
|
|
|
|
|
|
|
(1,136)
|
|
|
Shares issued under employee stock purchase plan |
(354)
|
|
|
$ 6
|
|
(360)
|
|
|
|
|
|
|
|
Shares issued under employee stock purchase plan, shares |
|
|
|
597,000
|
|
|
|
|
|
|
|
|
|
Stock-based compensation expense |
3,409
|
|
|
|
|
3,409
|
|
|
|
|
|
|
|
Reclassification of liability classified warrants to equity |
14,565
|
|
|
|
|
14,565
|
|
|
|
|
|
|
|
Balance at Mar. 31, 2019 |
$ (199,780)
|
|
|
$ 360
|
|
499,224
|
|
(697,954)
|
|
|
(1,410)
|
|
|
Balance, shares at Mar. 31, 2019 |
36,040,000
|
|
|
36,040,000
|
|
|
|
|
|
|
|
|
|
Balance at Jun. 30, 2018 |
$ (181,413)
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance, shares at Jun. 30, 2018 |
35,443,000
|
|
|
|
|
|
|
|
|
|
|
|
|
Net loss |
$ (21,617)
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Sep. 30, 2018 |
$ (201,648)
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance, shares at Sep. 30, 2018 |
35,556,000
|
|
|
|
|
|
|
|
|
|
|
|
|
Net loss |
$ (4,285)
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Dec. 31, 2018 |
$ (196,238)
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance, shares at Dec. 31, 2018 |
35,553,000
|
|
|
|
|
|
|
|
|
|
|
|
|
Net loss |
$ (9,410)
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Mar. 31, 2019 |
$ (199,780)
|
|
|
$ 360
|
|
$ 499,224
|
|
$ (697,954)
|
|
|
$ (1,410)
|
|
|
Balance, shares at Mar. 31, 2019 |
36,040,000
|
|
|
36,040,000
|
|
|
|
|
|
|
|
|
|