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Subsequent Events (Details) - USD ($) | 1 Months Ended | 3 Months Ended
--- | --- | ---
May 07, 2018 | Mar. 31, 2018
Shares Issued Through Equity Offering Program |  |
Number of shares sold (in shares) |  | 0
Subsequent event |  |
Shares Issued Through Equity Offering Program |  |
Number of shares sold (in shares) | 10,600 |
Proceeds from sale of shares, net of commission and before offering costs | $ 254,000 |
Payment of commissions on sale of shares | $ 2,600 |

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