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Business Combination (Details Narrative) - USD ($) |  |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Nov. 15, 2021 | Feb. 01, 2021 | Jan. 31, 2022 | Jan. 31, 2022
Business Acquisition [Line Items] |  |  |  |
Stock Issued During Period, Value, Acquisitions |  |  | $ 5,855,000 | $ 5,855,000
Acquisition related costs |  |  |  | $ 300,000
3Dent Acquisition [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Stock Issued During Period, Shares, Acquisitions |  | 361,991 |  |
Stock Issued During Period, Value, Acquisitions |  | $ 360,000 |  |
Business Acquisition, Share Price |  | $ 4.01 |  |
Marine Advanced Robotics, Inc. [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Payments to Acquire Businesses, Gross | $ 4,000,000 |  |  |
Business Combination, Contingent Consideration, Asset | $ 1,591,000 |  |  |
Business combination, description | the contingent consideration consists of two earn-out periods, one running from the date of the acquisition through April 30, 2023 in which the maximum earn-out is $1.5 million and the other from May 1, 2023 through April 30, 2024 where the maximum earn-out is $2 million. The fair value as of the date of acquisition was determined using a simulation model based on an estimate of revenues during these periods and discount factors ranging from 5.8% to 14.5%. |  |  |
Business Combination, Consideration Transferred | $ 11,902,000 |  |  |
Business acquistion intangible assets | $ 3,900,000 |  |  |
Marine Advanced Robotics, Inc. [Member] | Restricted Stock [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | 3,330,162 |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned | $ 5,900,000 |  |  |
Business Acquisition, Share Price | $ 2.10 |  |  |

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- Definition Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 + Details
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- Definition Number of shares of equity interests issued or issuable to acquire entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 + Details
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- Definition Description of the pro forma information, nature of adjustments made to historical information to arrive at pro forma amounts, amounts excluded from pro forma information, any material-nonrecurring items included in the pro forma information and limitations of pro forma disclosures. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=123586518&loc=d3e1043-128460 + Details
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- Definition Amount of asset recognized arising from contingent consideration in a business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6411-128476 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=116859824&loc=d3e6819-128478 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 + Details
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