Exercise price per share or per unit of warrants or rights outstanding.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 235
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-Section S99
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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Number of warrants or rights outstanding.

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Aggregate number of common shares reserved for future issuance.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Number of share instruments newly issued under a share-based compensation plan.

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Number of options vested.

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Purchase price of common stock expressed as a percentage of its fair value.

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Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of stock repurchase plan authorized.

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Employee Stock Compensation and Stock Repurchase Program (Details Textual) - USD ($)	6 Months Ended
	Jul. 31, 2017	Jun. 21, 2017	Jan. 31, 2017	Jul. 19, 2016	Jul. 08, 2015	Oct. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Repurchase Program, Authorized Amount				$ 2,500,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights						55,500
Class of Warrant or Right, Exercise Price of Warrants or Rights						$ 11.00
Class of Warrant or Right, Outstanding	55,500		55,500
Common Stock, Shares, Issued	7,663,890		7,620,215
2012 Plan [Member] \| Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares	293,887
2015 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance					100,000
Stock Issued During Period, Shares, Restricted Stock Award, Gross	5,221
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares	67,721
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures	43,029
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	23,971
2015 Plan [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance					20,000
Bonus-in-stock program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Purchase Price Of Common Stock, Percent	133.00%
2017 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Shares, Issued		360,000
Employees And Directors [Member] \| 2012 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	310,000