Contract Receivables, net (Tables)

12 Months Ended

Jul. 31, 2018

Contract Receivables, net [Abstract]

Contract Receivables, Net

Contract receivables, net are summarized in the following table.

	July 31,
	2018			2017 (Restated)
	(in thousands)
Contract receivables:
Billed	$	12,905		$	15,003
Unbilled		13,994			17,990
		26,899			32,993
Allowance for doubtful accounts		(1,284	)		(2,044	)
Contract receivables, net	$	25,615		$	30,949

Contract Receivable and Allowance for Doubtful Accounts by Geographical Areas

Significant concentrations of contract receivables and the allowance for doubtful accounts are summarized in the following table.

	July 31, 2018				July 31, 2017
Region	Contract Receivables		Allowance for Doubtful Accounts		Contract Receivables (Restated)		Allowance for Doubtful Accounts (Restated)
	(in thousands)
U.S. operations	$	21,580	$	569	$	25,472	$	797
South American operations		5,319		715		7,521		1,247
Totals	$	26,899	$	1,284	$	32,993	$	2,044

Allowance for Doubtful Accounts

Activity within the allowance for doubtful accounts is summarized in the following table.

	Fiscal Year Ended July 31,
	2018			2017 (Restated)			2016 (Restated)
	(in thousands)
Balance at beginning of period	$	2,044		$	6,792		$	6,817
Provision for doubtful accounts during the period		813			682			1,164
Write-offs and recoveries of allowance recorded in prior periods		(943	)		(5,430	)		(1,189	)
Reclassification of allowance from current to noncurrent		(630	)		---			---
Balance at end of period	$	1,284		$	2,044		$	6,792