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Revolving Credit Line (Tables) | 9 Months Ended
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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

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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