10.	Lines of Credit

Unsecured lines of credit are summarized in the following table.

	Balance at July 31,
	2016		2015
	(in thousands)
Outstanding cash draws, recorded as lines of credit on the accompanying consolidated balance sheets	$	312	$	672
Outstanding letters of credit to support operations		2,187		1,144
Total amounts used under lines of credit		2,499		1,816
Remaining amounts available under lines of credit		36,496		30,993
Total approved unsecured lines of credit	$	38,995	$	32,809

Contractual interest rates ranged from 3.50% to 15.60% at July 31, 2016. The Company’s lenders have reaffirmed the lines of credit within the past twelve months.