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Accounts Receivable, Net
 6 Months Ended
Apr. 30, 2018
Receivables [Abstract]  
Accounts Receivable, Net

Note 3.  Accounts Receivable, Net

Accounts receivable as of April 30, 2018 and October 31, 2017 consisted of the following:

 

 

 

April 30,

 

 

October 31,

 

 

 

2018

 

 

2017

 

Commercial Customers:

 

 

 

 

 

 

 

 

Amount billed

 

$

15,621

 

 

$

41,073

 

Unbilled recoverable costs (1)

 

 

22,746

 

 

 

18,162

 

 

 

 

38,367

 

 

 

59,235

 

Advanced Technologies (including U.S. government(2)):

 

 

 

 

 

 

 

 

Amount billed

 

 

1,980

 

 

 

1,934

 

Unbilled recoverable costs

 

 

5,842

 

 

 

7,352

 

 

 

 

7,822

 

 

 

9,286

 

Accounts receivable, net

 

$

46,189

 

 

$

68,521

 

 

(1)

Additional long-term unbilled recoverable costs of $11.2 million and $12.8 million are included within “Other assets” as of April 30, 2018 and October 31, 2017, respectively. 

(2)

Total U.S. government accounts receivable, including unbilled recoverable cost, outstanding as of April 30, 2018 and October 31, 2017 were $4.5 million and $3.2 million, respectively.

We bill customers for power plant and power plant component sales based on certain contractual milestones being reached.  We bill service agreements based on the contract price and billing terms of the contracts. Generally, our Advanced Technologies contracts are billed based on actual recoverable costs incurred, typically in the month subsequent to incurring costs.  Some Advanced Technologies contracts are billed based on contractual milestones or costs incurred.  Unbilled recoverable costs relate to revenue recognized on customer contracts that have not been billed.  Accounts receivable are presented net of an allowance for doubtful accounts of $0.1 million as of April 30, 2018 and October 31, 2017.  Uncollectible accounts receivable are charged against the allowance for doubtful accounts when all collection efforts have failed and it is deemed unlikely that the amount will be recovered.

Accounts receivable from commercial customers (including unbilled recoverable costs) included amounts due from POSCO Energy of $12.2 million and $6.2 million as of April 30, 2018 and October 31, 2017, respectively, and amounts due from NRG and NRG Yield of $0.02 million and $0.1 million as of April 30, 2018 and October 31, 2017, respectively.