Note 10 - Prepaid Rent Received (Details) - USD ($)	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Prepaid rent recognized as revenue during the year	$ 692,621	$ 465,765
Prepaid rent received during the year	13,048	39,598
Prepaid Expenses And Other Current Assets [Member]
Prepaid rent received, beginning of year	7,450
Prepaid rent recognized as revenue during the year	160,559	7,450
Prepaid rent received during the year	134,009	39,598
Prepaid rent received, end of year	$ 39,598	$ 7,450

Amount at the balance sheet date that has been received by the entity that represents rents paid in advance.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The current portion of prepayments received from customers for goods or services to be provided in the future.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=7501430&loc=d3e39896-112707

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: