Notes payable, convertible senior notes and line of credit (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Summary of Notes Payable

A summary of notes payable follows:

	2015	2014
	($000 omitted)
Banks – varying payments and rates (1)	98,000	60,000
Other than banks	4,399	11,180
	102,399	71,180

⁽¹⁾ Average interest rates were 1.68% and 2.21% during the year ended December 31, 2015 and 2014, respectively.