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Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Mar. 31, 2012
--- | --- | ---
ASSETS |  |
Cash and cash equivalents | $ 42,457 | $ 46,279
Marketable securities |  | 5,304
Accounts receivable, net | 12,328 | 18,999
Inventory | 36,455 | 29,256
Prepaid expenses and other current assets | 26,735 | 31,444
Restricted cash | 9,154 | 12,086
Deferred tax assets | 203 | 203
Total current assets | 127,332 | 143,571
Property, plant and equipment, net | 78,010 | 90,828
Intangibles, net | 2,999 | 3,772
Restricted cash | 4,820 | 2,540
Deferred tax assets | 3,129 | 3,129
Other assets | 9,029 | 11,216
Total assets | 225,319 | 255,056
LIABILITIES AND STOCKHOLDERS' EQUITY |  |
Accounts payable and accrued expenses | 30,320 | 37,582
Note payable, current portion, net of discount of $552 as of December 31, 2012 | 4,063 |
Current portion of convertible note, net of discount of $5,448 as of December 31, 2012 | 7,162 |
Derivative liability | 5,605 |
Adverse purchase commitments | 1,799 | 25,894
Deferred revenue | 23,794 | 19,718
Deferred tax liabilities | 3,129 | 3,129
Total current liabilities | 75,872 | 86,323
Note payable, net of discount of $174 as of December 31, 2012 | 4,442 |
Convertible note net of discount of $1,287 as of December 31, 2012 | 7,047 |
Deferred revenue | 1,445 | 1,558
Deferred tax liabilities | 203 | 203
Other liabilities | 1,497 | 2,093
Total liabilities | 90,506 | 90,177
Commitments and contingencies (Note 13) |  |
Stockholders' equity: |  |
Common stock | 567 | 520
Additional paid-in capital | 913,107 | 896,603
Treasury stock | (313) | (271)
Accumulated other comprehensive income | 1,812 | 2,027
Accumulated deficit | (780,360) | (734,000)
Total stockholders' equity | 134,813 | 164,879
Total liabilities and stockholders' equity | $ 225,319 | $ 255,056

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