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Related Party Transaction	6 Months Ended
Related Party Transaction	Jul. 31, 2019
Related Party Transactions [Abstract]
Related Party Transaction	Related Party Transaction On October 7, 2016 the Company entered into an equity distribution agreement (the “Equity Distribution Agreement”) with Ladenburg Thalmann & Co. Inc. (the “Agent”), pursuant to which the Company may sell up to 500,000 shares of 9.00% Series A Cumulative Preferred Stock (the "Preferred Stock"), par value $1.00 per share through an at-the-market ("ATM") offering program administered by the Agent. The Co-Chief Executive Officer and Co-President of Ladenburg Thalmann & Co. Inc is the Non-Executive Chairman of the company’s board of directors. Under the Equity Distribution Agreement, the Agent will be entitled to compensation of up to 2.0% of the gross proceeds from the sale of Preferred Stock under the ATM offering program. As of July 31, 2019, the total number of shares sold pursuant to the program was 423,264. For the three and six months ended July 31, 2019, the Company issued 70,282 and 86,938 shares of Preferred Stock under the ATM offering program, respectively. Gross proceeds from these sales for the three and six months ended July 31, 2019 were approximately $1.7 million and $2.1 million, respectively, and the Agent received compensation of approximately $34,000 and $42,000, respectively. The Non-Executive Chairman of the Company received no portion of this compensation.