11.	Lines of Credit

Unsecured lines of credit are summarized in the following table.

	July 31,
	2019		2018
	(in thousands)

Outstanding cash advances reported as lines of credit	$	284	$	---
Outstanding letters of credit to support operations		1,635		1,668
Total amounts used under lines of credit		1,919		1,668
Remaining amounts available under lines of credit		33,681		33,932
Total unsecured lines of credit	$	35,600	$	35,600

The Company’s U.S. operations are supported by two line of credit arrangements:

•

$19.0 million available line of credit at July 31, 2019; no outstanding cash advances as of July 31, 2019 or 2018; letters of credit of less than $0.1 million were outstanding at July 31, 2019 and 2018; interest rate based on LIBOR plus 275 basis points; and

•

$13.5 million available line of credit at July 31, 2019; no outstanding cash advances as of July 31, 2019 or 2018; letters of credit of less than $0.1 million outstanding at July 31, 2019 and 2018; interest rate based on LIBOR plus 200 basis points.

The Company’s South American operations are supported by two line of credit arrangements:

•

$2.0 million available line of credit at July 31, 2019 to support operations in Peru; no outstanding cash advances as of July 31, 2019 or 2018; letters of credit of $1.0 million was outstanding as of July 31, 2019 and 2018, respectively; interest rate is affirmed by or negotiated with the lender annually; and

•

$1.1 million available line of credit at July 31, 2019 to support operations in Brazil; combined balance of outstanding cash advances of $0.3 million and $0 as of July 31, 2019 and 2018, respectively; letters of credit of $0.6 million were outstanding as of July 31, 2019 and 2018, respectively; interest rate based on a Brazilian government economic index.