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Unaudited Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Jun. 30, 2016
Mar. 31, 2016
Current assets:    
Cash and cash equivalents $ 35,211 $ 39,330
Accounts receivable, net 7,039 19,264
Inventory 28,887 18,512
Prepaid expenses and other current assets 4,086 5,778
Restricted cash 441 457
Total current assets 75,664 83,341
Property, plant and equipment, net 48,318 49,778
Intangibles, net 712 854
Restricted cash 934 934
Deferred tax assets 94 96
Other assets 329 315
Total assets 126,051 135,318
Current liabilities:    
Accounts payable and accrued expenses 24,694 23,156
Note payable, current portion, net of discount of $119 as of June 30, 2016 and $42 as of March 31, 2016 3,047 2,624
Derivative liabilities 3,905 3,227
Deferred revenue 12,752 12,000
Total current liabilities 44,398 41,007
Note payable, net of discount of $133 as of March 31, 2016 0 1,367
Deferred Revenue 8,344 9,269
Deferred tax liabilities 63 63
Other liabilities 57 63
Total liabilities 52,862 51,769
Commitments and contingencies (Note 12)
Stockholders' equity:    
Common stock 143 141
Additional paid-in capital 1,012,918 1,011,813
Treasury stock, at cost (1,341) (881)
Accumulated other comprehensive loss 8 660
Accumulated deficit (938,539) (928,184)
Total stockholders' equity 73,189 83,549
Total liabilities and stockholders' equity $ 126,051 $ 135,318