Revolving credit line (Tables)

9 Months Ended

Sep. 30, 2017

Debt Disclosure [Abstract]

Schedule of Notes Payable

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

	September 30, 2017		December 31, 2016
Revolving credit line - 5.0 percent at September 30, 2017 (prime plus 0.75 percent), due September 29, 2018 - current portion	$	5,000,000	$	—
Total	$	5,000,000	$	—