Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 31, 2024	Oct. 31, 2023
Current assets:
Cash and cash equivalents, unrestricted	$ 159,347	$ 249,952
Restricted cash and cash equivalents - short-term	9,686	5,159
Investments - short-term	107,817	103,760
Accounts receivable, net	11,161	3,809
Unbilled receivables	30,169	16,296
Inventories	129,349	84,456
Other current assets	12,439	12,881
Total current assets	459,968	476,313
Restricted cash and cash equivalents - long-term	49,148	44,465
Inventories - long-term	2,743	7,329
Project assets, net	248,790	258,066
Property, plant and equipment, net	121,382	89,668
Operating lease right-of-use assets, net	7,884	8,352
Goodwill	4,075	4,075
Intangible assets, net	15,104	16,076
Other assets	39,816	51,176
Total assets (1)	948,910	955,520
Current liabilities:
Current portion of long-term debt	12,232	10,067
Current portion of operating lease liabilities	760	599
Accounts payable	16,928	26,518
Accrued liabilities	25,970	26,313
Deferred revenue	10,649	2,406
Total current liabilities	66,539	65,903
Long-term deferred revenue	1,979	732
Long-term operating lease liabilities	8,708	8,992
Long-term debt and other liabilities	126,720	119,588
Total liabilities (1)	203,946	195,215
Redeemable Series B preferred stock (liquidation preference of $64,020 as of July 31, 2024 and October 31, 2023)	59,857	59,857
Stockholders' equity:
Common stock ($0.0001 par value); 1,000,000,000 shares authorized as of July 31, 2024 and October 31, 2023; 553,840,943 and 450,626,862 shares issued and outstanding as of July 31, 2024 and October 31, 2023, respectively	55	45
Additional paid-in capital	2,277,417	2,199,661
Accumulated deficit	(1,600,134)	(1,515,541)
Accumulated other comprehensive loss	(1,576)	(1,672)
Treasury stock, Common, at cost (376,340 and 246,468 shares as of July 31, 2024 and October 31, 2023, respectively)	(1,198)	(1,078)
Deferred compensation	1,198	1,078
Total stockholder's equity	675,762	682,493
Noncontrolling interests	9,345	17,955
Total equity	685,107	700,448
Total liabilities, redeemable Series B preferred stock and total equity	$ 948,910	$ 955,520

Long-term project assets.

No definition available.

Name:	fcel_LongTermProjectAssets
Namespace Prefix:	fcel_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).