Revolving Credit Line (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Summary of revolving credit line

The following table summarizes our revolving credit line balances as of:

	September 30, 2018		December 31, 2017
Revolving credit line - 6.25 percent at September 30, 2018 (prime plus 1.0 percent), due October 20, 2018	$	4,825,000	$	4,900,000
Total	$	4,825,000	$	4,900,000