Note 10 - Purchase of Interests in Subsidiaries (Details Textual) - Sep. 13, 2016	USD ($)	BRL
NM Acquisition [Member] \| SGRP Holdings and SPAR BSMT [Member]
Business Acquisition, Number of Acquired Entity	2	2
Business Combination, Consideration Transferred	$ 358,000	BRL 1,163,263
NM Acquisition [Member] \| SPAR BSMT [Member]
Business Acquisition, Percentage of Voting Interests Acquired	99.00%	99.00%
NM Acquisition [Member] \| SGRP Holdings [Member]
Business Acquisition, Percentage of Voting Interests Acquired	1.00%	1.00%
Sublease Agreement [Member]
Lessee Leasing Arrangements, Operating Leases, Term of Contract	1 year	1 year
Operating Lease, Monthly Rent	$ 65,700	BRL 205,417
Transition Agreement, Monthly Service Payments	$ 23,850	BRL 74,534

The number of acquired entity in a business acquisition.

No definition available.

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- Definition

Amount of the monthly rent required for operating lease.

+ References

No definition available.

+ Details

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- Definition

Amount of the monthly service payments required for the transition agreement.

+ References

No definition available.

+ Details

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

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- Definition

Term of the lessee's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Details

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