Note 9 - Stockholders' Equity (Details Textual)				1 Months Ended		12 Months Ended
	Jun. 30, 2016 USD ($) $ / shares $ / item shares	Feb. 10, 2015 $ / shares shares	Jul. 02, 2014 $ / shares shares	Jun. 30, 2016 USD ($) $ / shares $ / item shares	Jan. 31, 2016 USD ($)	Jun. 30, 2016 USD ($) $ / shares $ / item shares	Jun. 30, 2015 USD ($) $ / shares $ / item shares
Series B Preferred Stock [Member]
Preferred Stock, Shares Outstanding | shares	200		200	200		200	200
Preferred Stock, Par or Stated Value Per Share | $ / shares	$ 0.01		$ 0.01	$ 0.01		$ 0.01	$ 0.01
Preferred Stock, Redemption Price Per Share | $ / shares			$ 2
Preferred Stock, Dividend Rate, Percentage			2.50%
Convertible Preferred Stock Redemption Period			3 years
Dividends, Preferred Stock						$ 2,000	$ 2,000
Dividends Payable	$ 10,000			$ 10,000		$ 10,000
Centerpoint [Member]
Shares Held by Subsidiaries | shares	704,309			704,309		704,309
Employees and Consultants [Member] | Minimum [Member]
Share Price | $ / shares	$ 0.76			$ 0.76		$ 0.76	$ 0.43
Employees and Consultants [Member] | Maximum [Member]
Share Price | $ / shares	1.15			1.15		$ 1.15	$ 1.22
President [Member] | Subscription Agreement [Member]
Sale of Units, Number Of Units Issued | shares							12,561
Sale of Units, Value							$ 6,280
President [Member]
Stock Issued During Period, Value, Issued for Services						$ 69,000
Stock Issued During Period Shares Vested But Not Issued ForServices | shares						75,000	75,000
Debt Conversion, Original Debt, Amount							$ 106,099
Debt Instrument, Convertible, Conversion Price | $ / shares							$ 0.45
Number of Share Per Unit							1
Number of Warrants Per Unit							1
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	0.75	$ 1.50		0.75		$ 0.75	$ 1.50
Class of Warrant or Right Exercised During Period | shares						6,280
Debt Conversion Converted Instrument Units Issued | shares							235,775
Deferred Compensation Converted to Common Stock Amount						$ 82,861
Deferred Compensation Converted to Common Stock Shares | shares						99,159
Warrants Exercise Bonus, Percentage of Exercise Price						50.00%
Class of Warrant or Right, Exercise Price of Warrants or Rights, After Exercise Bonus | $ / shares	0.375			0.375		$ 0.375
Deferred Compensation to Exercise Warrants						$ 2,355
Deferred Compensation, Shares Issued, Warrants Exercised | shares						6,280
Extension of Expiration Date Number of Warrants | shares							1,883,324
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares		150,000
Chief Executive Officer [Member] | Warrants Expiration Extended until December 31, 2020 [Member]
Extension of Expiration Date Number of Warrants | shares							3,906,953
Chief Executive Officer [Member]
Stock Issued During Period, Shares, Conversion of Convertible Securities | shares							130,953
Debt Conversion, Original Debt, Amount							$ 110,000
Debt Instrument, Convertible, Conversion Price | $ / shares							$ 0.84
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	1.50			1.50		$ 1.50
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares						450,000
Certain Brokers [Member] | Subscription Agreement [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares							$ 0.75
Payments for Commissions						$ 24,496	$ 61,522
Class of Warrant or Right Issued During Period Per Dollar of Principal | shares							123,044
Warrant Fair Value Price Per Share | $ / shares							$ 0.05
Interest Expense							$ 6,152
Class of Warrant or Right Issued During Period | shares							123,044
Various Warrant Holders [Member] | Subscription Agreement [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 0.75			$ 0.75		$ 0.75
Class of Warrant or Right Exercised During Period | shares	10,000					284,445
Common Stock Shares Issued upon Exercise of Warrants | shares						284,445
Proceeds from Warrant Exercises						$ 213,333
Common Stock, Share Subscribed but Unissued, Subscriptions Receivable	$ 7,500			$ 7,500		$ 7,500
Various Warrant Holders [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 0.75			$ 0.75		$ 0.75
Class of Warrant or Right Exercised During Period | shares						284,445
Common Stock Shares Issued upon Exercise of Warrants | shares						284,445
Proceeds from Warrant Exercises						$ 213,333
Various Consultants [Member]
Deferred Compensation Converted to Common Stock Amount						$ 200,877
Deferred Compensation Converted to Common Stock Shares | shares						236,539
President and Various Consultants [Member] | Minimum [Member]
Deferred Compensation Converted to Common Stock Conversion Rate | $ / shares						$ 0.76
President and Various Consultants [Member] | Maximum [Member]
Deferred Compensation Converted to Common Stock Conversion Rate | $ / shares						$ 1.15
CEO and Shareholder [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares							$ 0.85
Interest Expense							$ 6,750
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares							67,500
Fair Value Per Share for Warrants | $ / shares							$ 0.10
CEO and President [Member]
Modification of Warrants							$ 223,589
Board of Directors Chairman [Member] | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Incremental Compensation Cost						$ 42,550	11,783
CEO, President, and Executive Vice Chairman [Member] | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Incremental Compensation Cost							$ 357,500
Minimum [Member] | Expired [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	2.25			2.25		$ 2.25
Minimum [Member] | President and Various Consultants [Member]
Deferred Compensation Converted to Common Stock Conversion Rate | $ / shares							$ 0.72
Minimum [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	0.75			0.75		0.75
Maximum [Member] | Expired [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	3.10			3.10		$ 3.10
Maximum [Member] | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period						10 years
Maximum [Member] | President and Various Consultants [Member]
Deferred Compensation Converted to Common Stock Conversion Rate | $ / shares							$ 1.24
Maximum [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 3			$ 3		$ 3
Restricted Stock [Member] | Subscriptions Receivable [Member]
Stock Issued During Period, Shares, New Issues | shares						12,500	40,000
Stock Issued During Period, Value, New Issues						$ 13,125	$ 30,000
Restricted Stock [Member] | Subscription Agreement [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares							$ 0.75
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares							900,000
Restricted Stock [Member]
Share Price | $ / shares							$ 0.75
Stock Issued During Period, Shares, New Issues | shares							35,000
Proceeds from Issuance of Common Stock							$ 26,250
Expired [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares	1,047,806			1,047,806		1,047,806
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | shares	22,000,000			22,000,000		22,000,000
Allocated Share-based Compensation Expense						$ 99,553	$ 501,609
Subscriptions Receivable [Member]
Class of Warrant or Right Exercised During Period | shares						12,500
Subscription Agreement [Member] | Certain Warrants with Expiry Dates on or before December 31, 2015 [Member] | For the Period from June 30, 2015 through July 15, 2015 [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 1.05			$ 1.05		$ 1.05	$ 1.05
Class of Warrant or Right Offering Period Extension							15 days
Induced Conversion of Convertible Debt Expense							$ 9,593
Class of Warrant or Right Exercised During Period | shares						265,894	71,133
Common Stock Shares Issued upon Exercise of Warrants | shares						265,894	71,133
Proceeds from Warrant Exercises						$ 174,189	$ 74,690
Subscription Agreement [Member] | Certain Warrants with Expiry Dates on or before December 31, 2015 [Member] | For the Period from May 13, 2015 through June 30, 2015 [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares							$ 1.05
Class of Warrant or Right Offering Period Extension							15 days
Class of Warrant or Right Exercised During Period | shares							71,133
Common Stock Shares Issued upon Exercise of Warrants | shares							71,133
Proceeds from Warrant Exercises							$ 74,690
Subscription Agreement [Member] | Certain Warrants with Expiry Dates on or before December 31, 2015 [Member] | For the Period from July 1, 2015 through July 15, 2015 [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 1.05			$ 1.05		$ 1.05
Subscription Agreement [Member]
Sale Of Units Price Per Unit Issued | $ / item	0.8			0.8		0.8	0.5
Number of Share Per Unit	1			1		1	1
Number of Warrants Per Unit	1			1		1	1
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 1.10			$ 1.10		$ 1.10
Sale of Units, Number Of Units Issued | shares						393,698	1,800,000
Sale of Units, Value						$ 314,957	$ 900,000
Warrant Fair Value Price Per Share | $ / shares	0.05			0.05		$ 0.05	$ 0.05
Adjustments to Additional Paid in Capital, Warrant Issued						$ 8,041	$ 34,826
Adjustments to Additional Paid in Capital, Other						306,916	865,174
Common Stock, Share Subscribed but Unissued, Subscriptions Receivable							$ 13,125
Certain Warrants with Expiry Dates on or before December 31, 2015 [Member] | For the Period from July 1, 2015 through July 15, 2015 [Member]
Proceeds from Warrant Exercises						174,189
Certain Warrants with Expiry Dates on or before December 31, 2015 [Member] | Note Receivable as Consideration for Warrants Exercise [Member]
Other Significant Noncash Transaction, Value of Consideration Received						$ 105,000
Certain Warrants with Expiry Dates on or before December 31, 2015 [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 1.05			$ 1.05		$ 1.05
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares	100,000			100,000		100,000
Warrants Expire March 31,2015 [Member]
Extension of Expiration Date Number of Warrants | shares							985,833
Modification of Warrants							$ 986
Warrants Expire June 30,2015 [Member]
Extension of Expiration Date Number of Warrants | shares							1,260,833
Modification of Warrants							$ 6,061
President and Various Consultants [Member]
Deferred Compensation Converted to Common Stock Amount							$ 80,780
Deferred Compensation Converted to Common Stock Shares | shares							99,523
Note Receivable as Consideration for Warrants Exercise [Member]
Other Significant Noncash Transaction, Value of Consideration Received						$ 105,000
Proceeds from Collection of Notes Receivable				$ 10,000	$ 35,000	45,000
Cancellation of Promissory Note, Resulting in Cancellation of Restricted Common Shares [Member]
Financing Receivable, Principal Balance Cancelled						60,000
Accrued Interest Receivable Cancelled						$ 2,727
Common Stock Shares Cancelled | shares						57,142
Common Stock Voting Rights Votes Per Share						1
Shares Held by Subsidiaries | shares	704,309			704,309		704,309	704,309
Stock Issued During Period, Shares, Issued for Services | shares						242,034	45,647
Stock Issued During Period, Value, Issued for Services						$ 228,558	$ 41,028
Proceeds from Issuance of Common Stock							26,250
Stock Issued During Period, Value, New Issues							26,250
Sale of Units, Value						314,957	900,000
Interest Expense						382,686	375,705
Induced Conversion of Convertible Debt Expense							9,593
Proceeds from Warrant Exercises						387,522	$ 74,690
Subscription Agreement Warrants Agreed to Exercise | shares							12,500
Common Stock, Share Subscribed but Unissued, Subscriptions Receivable	$ 7,500			$ 7,500		7,500	$ 13,125
Other Significant Noncash Transaction, Value of Consideration Received						105,000
Proceeds from Collection of Notes Receivable						$ 45,000
Class of Warrant or Right, Outstanding | shares	8,100,000			8,100,000		8,100,000
Weighted Average Exercise Price for Outstanding Warrants | $ / shares						$ 1.24
Weighted Average Remaining Contractual Life for Outstanding Warrants						3 years 328 days
Modification of Warrants							$ 230,636
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares						100,000	957,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period | shares						288,333	802,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value						$ 97,000	$ 476,075
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options	$ 9,913			$ 9,913		$ 9,913