Basis of Presentation	3 Months Ended
Apr. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The condensed consolidated balance sheet as of January 31, 2018 for the Company has been derived from audited consolidated financial statements. The unaudited interim condensed consolidated financial statements have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States have been condensed or omitted pursuant to such rules and regulations, although the Company believes that the disclosures are adequate to make the information presented not misleading. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the related notes included in the Company’s Annual Report on Form 10-K for the year ended January 31, 2018. In the opinion of the Company’s management, all adjustments, consisting only of normal recurring adjustments, necessary to present fairly the financial position as of April 30, 2018, the results of operations for the three months ended April 30, 2018 and 2017, and the cash flows for the three months ended April 30, 2018 and 2017, have been included in these condensed consolidated financial statements. The foregoing interim results are not necessarily indicative of the results of operations to be expected for the full fiscal year ending January 31, 2019. As of February 1, 2018 Seamap Pte Ltd., one of the operating entities included in the Seamap group, changed its functional currency to the U.S. dollar. The change was due to recent developments in the Seamap business, including the acquisition of developed technology and introduction of a new product line which expands its markets. This change in functional currency did not have a material effect on the condensed consolidated financial statements.

Basis of Presentation

The condensed consolidated balance sheet as of January 31, 2018 for the Company has been derived from audited consolidated financial statements. The unaudited interim condensed consolidated financial statements have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States have been condensed or omitted pursuant to such rules and regulations, although the Company believes that the disclosures are adequate to make the information presented not misleading. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the related notes included in the Company’s Annual Report on Form 10-K for the year ended January 31, 2018. In the opinion of the Company’s management, all adjustments, consisting only of normal recurring adjustments, necessary to present fairly the financial position as of April 30, 2018, the results of operations for the three months ended April 30, 2018 and 2017, and the cash flows for the three months ended April 30, 2018 and 2017, have been included in these condensed consolidated financial statements. The foregoing interim results are not necessarily indicative of the results of operations to be expected for the full fiscal year ending January 31, 2019. As of February 1, 2018 Seamap Pte Ltd., one of the operating entities included in the Seamap group, changed its functional currency to the U.S. dollar. The change was due to recent developments in the Seamap business, including the acquisition of developed technology and introduction of a new product line which expands its markets. This change in functional currency did not have a material effect on the condensed consolidated financial statements.