Note 7 - Stockholders' Equity (Details Textual)																														1 Months Ended				3 Months Ended			9 Months Ended		12 Months Ended
	Apr. 02, 2018 shares	Feb. 16, 2018 $ / shares shares	Feb. 02, 2018 $ / shares shares	Jan. 18, 2018 $ / shares shares	Jan. 11, 2018 $ / shares shares	Dec. 27, 2017 USD ($) $ / shares shares	Dec. 21, 2017 $ / shares shares	Dec. 04, 2017 USD ($) $ / shares shares	Nov. 29, 2017 USD ($) shares	Nov. 27, 2017 USD ($) $ / shares shares	Sep. 28, 2017 USD ($) $ / shares shares	Aug. 29, 2017 $ / shares shares	Aug. 11, 2017 $ / shares shares	Jun. 01, 2017 $ / shares shares	May 31, 2017 USD ($) $ / shares shares	May 22, 2017 USD ($) shares	May 16, 2017 $ / shares shares	May 11, 2017 USD ($) shares	May 01, 2017 USD ($) $ / shares shares	Mar. 31, 2017 $ / shares shares	Mar. 23, 2017 shares	Mar. 07, 2017 USD ($) $ / shares shares	Mar. 03, 2017 USD ($) $ / shares shares	Mar. 01, 2017 USD ($) $ / shares shares	Feb. 15, 2017 USD ($) shares	Nov. 11, 2016 shares	Oct. 28, 2016 shares	Oct. 13, 2016 USD ($) $ / shares shares	Mar. 18, 2015	Nov. 30, 2017 shares	Apr. 30, 2017 USD ($) shares	Jan. 31, 2017 USD ($) shares	Dec. 31, 2016 USD ($) shares	Mar. 31, 2018 $ / shares shares	Feb. 28, 2018 USD ($) $ / shares shares	Feb. 28, 2017 USD ($)	Feb. 28, 2018 USD ($) $ / shares shares	Feb. 28, 2017 USD ($)	May 31, 2017 USD ($) $ / shares shares	Aug. 28, 2017 $ / shares	Apr. 28, 2017 $ / shares	Apr. 27, 2017 USD ($) shares	Aug. 31, 2016 USD ($)	Mar. 17, 2014 shares
Preferred Stock, Par or Stated Value Per Share | $ / shares															$ 0.0001																				$ 0.0001		$ 0.0001		$ 0.0001		$ 0.001
Preferred Stock, Shares Authorized															5,000,000																				5,000,000		5,000,000		5,000,000
Preferred Stock, Shares Issued															0																				4,000,000		4,000,000		0
Common Stock, Shares Authorized															600,000,000																				600,000,000		600,000,000		600,000,000					100,000,000
Stock Issued During Period, Shares, Issued for Services		150,000											200,000	160,000																			50,000		210,000		1,220,000
Shares Issued, Price Per Share | $ / shares		$ 88,500	$ 18,600
Stock Issued During Period, Value, Issued for Services | $																																	$ 55,000		$ 192,445		$ 954,775
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period																																							175,000
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares																																			$ 1.25		$ 1.25
Class of Warrant or Right Exercised in Period																														3,182,162
Stock Issued During Period, Shares, Conversion of Convertible Securities			30,000						60,606
Stock Issued During Period, Value, Conversion of Convertible Securities | $									$ 15,000
Share Price | $ / shares													$ 124,000	$ 112,000
Stock Issued During Period, Shares, Warrants Exercise																														2,370,318
Gain (Loss) on Extinguishment of Debt | $																																				$ (138,228)	$ (101,223)	$ (120,580)
Stock Issued During Period, Shares, Payment Forbearance					102,664
Preferred Stock, Shares Outstanding															0																				4,000,000		4,000,000		0
Subsequent Event [Member]
Stock Issued During Period, Shares, New Issues	200,000
Minimum [Member]
Class of Warrant or Right, Term																																					3 years
Maximum [Member]
Class of Warrant or Right, Term																																					5 years
Law Firm [Member]
Stock Issued During Period, Shares, Issued for Services																			100,000
Stock Issued During Period, Value, Issued for Services | $																			$ 128,000
The 10% Secured Convertible Promissory Notes [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights																			2,500,000
Warrants Issued in Connection with AIP Financing [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights												2,500,000
Class of Warrant or Right, Term																			5 years
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares												$ 0.60							$ 1																					$ 0.80
Employee [Member]
Stock Issued During Period, Shares, New Issues				310,000
Shares Issued, Price Per Share | $ / shares				$ 179,800
AIP Note Purchase Agreement [Member]
Stock Issued During Period, Shares, Issued for Monetary Penalty												150,001
AIP [Member]
Shares Issued, Price Per Share | $ / shares							$ 650,000
Stock Issued During Period, Shares, For Extending Date to File Registration Statement							1,000,000
LS and SBI [Member] | Subsequent Event [Member]
Stock Issued During Period, Shares, Issued for Extending Debt																																		400,000
LS and SBI [Member] | Minimum [Member] | Subsequent Event [Member]
Shares Issued, Price Per Share | $ / shares																																		$ 0.60
LS and SBI [Member] | Maximum [Member] | Subsequent Event [Member]
Shares Issued, Price Per Share | $ / shares																																		$ 0.87
Common Stock [Member]
Stock Issued During Period, Shares, New Issues																		50,000
Cashless Exercise of Warrants in Shares																	447,552
Stock Issued During Period, Shares, Conversion of Convertible Securities																															104,796
Common Stock [Member] | Interest Expense [Member]
Stock Issued During Period, Values, Inducement | $																		$ 62,500
Stock Issued During Period, Value, Conversion of Convertible Securities | $																															$ 79,454
Common Stock [Member] | Employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period																					44,403
Common Stock [Member] | Noteholder [Member]
Stock Issued During Period, Shares, Inducement																																15,000
Stock Issued During Period, Values, Inducement | $																																$ 14,398
Common Stock [Member] | Investor [Member]
Stock Issued During Period, Shares, Inducement																																20,000
Stock Issued During Period, Values, Inducement | $																																$ 14,400
Warrant [Member]
Class of Warrant or Right Exercised in Period																	831,168
Convertible Promissory Note [Member]
Shares Issued, Price Per Share | $ / shares					$ 56,465
Debt Instrument, Interest Rate, Stated Percentage																							10.00%
Debt Instrument, Face Amount | $																							$ 103,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights																							50,000
Class of Warrant or Right, Term																							3 years
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares																							$ 0.60
Convertible Promissory Note [Member] | Common Stock [Member]
Stock Issued During Period, Shares, New Issues																										50,000	20,000
Debt Instrument, Face Amount | $																		$ 150,000													$ 77,000
The 10% Secured Convertible Promissory Notes [Member]
Debt Instrument, Interest Rate, Stated Percentage																			10.00%
Debt Instrument, Face Amount | $																			$ 2,500,000
The 9% Convertible Promissory Notes [Member] | Private Placement [Member]
Debt Instrument, Interest Rate, Stated Percentage																																										9.00%
Debt Instrument, Face Amount | $																																										$ 899,999
Class of Warrant or Right, Number of Securities Called by Warrants or Rights																																										1,279,998
10% Promissory Note Due March 31, 2017 [Member]
Conversion of Stock, Shares Converted															169,886					169,886
Debt Instrument, Interest Rate, Stated Percentage																				6.00%		10.00%		10.00%																			10.00%
Debt Instrument, Face Amount | $																						$ 100,000		$ 100,000																			$ 150,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights												25,000								100,000		100,000		100,000
Class of Warrant or Right, Term												3 years								3 years		3 years		3 years
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares												$ 1					$ 0.60			$ 1		$ 0.60		$ 0.60
Class of Warrant or Right Exercised in Period																	831,168
Two Consulting Firms [Member]
Stock Issued During Period, Shares, Issued for Services																												400,000
Shares Issued, Price Per Share | $ / shares																												$ 0.67
Stock Issued During Period, Value, Issued for Services | $																												$ 268,000
Two Vendors [Member] | Common Stock [Member]
Stock Issued During Period, Shares, New Issues																									208,596
Stock Issued During Period, Value, New Issues | $																									$ 253,003
Accredited Investors [Member] | Common Stock [Member] | Private Placement [Member]
Stock Issued During Period, Shares, Issued for Services																			2,050,002
Proceeds from Issuance of Common Stock | $																			$ 1,230,000
Accredited Investors [Member] | Warrant [Member] | Private Placement [Member]
Debt Instrument, Face Amount | $																			$ 100,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights																			2,050,002
Class of Warrant or Right, Term																			3 years
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares																			$ 1
Accredited Investors [Member] | 10% Promissory Note Due March 31, 2017 [Member] | Common Stock [Member]
Conversion of Stock, Shares Converted																			169,886
Accredited Investors [Member] | 10% Promissory Note Due March 31, 2017 [Member] | Warrant [Member]
Conversion of Stock, Shares Converted																			169,886
Consultant [Member] | Common Stock [Member]
Stock Issued During Period, Shares, Issued for Services																60,000
Stock Issued During Period, Value, Issued for Services | $																$ 60,300
Two Noteholders [Member]
Stock Issued During Period, Shares, New Issues										400,000
Stock Issued During Period, Value, New Issues | $										$ 348,000
Three Consultants [Member]
Stock Issued During Period, Shares, Issued for Services										550,000
Three Consultants [Member] | Minimum [Member]
Shares Issued, Price Per Share | $ / shares										$ 0.65
Three Consultants [Member] | Maximum [Member]
Shares Issued, Price Per Share | $ / shares										$ 1.30
Vendor [Member]
Stock Issued During Period, Shares, Settlement of Accounts Payable										337,410
Settlement of Accounts Payable | $										$ 202,446
L2 [Member]
Stock Issued During Period, Shares, Conversion of Convertible Securities								101,010
L2 [Member] | The 9% Convertible Promissory Notes [Member]
Shares Issued, Price Per Share | $ / shares								$ 0.87
Stock Issued During Period, Value, Conversion of Convertible Securities | $								$ 25,000
Stock Issued During Period, Shares, Issued for Extending Debt								200,000
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio																													30
The 4% Series A Convertible Preferred Stock [Member]
Preferred Stock, Dividend Rate, Percentage																																					4.00%
Dividends | $																																					$ 100,000
Convertible Preferred Stock, Stated Value | $ / shares																																					$ 1.50
Preferred Stock, Liquidation Preference Per Share | $ / shares																																			$ 1.50		$ 1.50
AIP Note Purchase Agreement [Member]
Conversion of Stock, Shares Converted												150,001
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares												$ 0.60
Other Noncash Expense | $																																					$ 594,583
AIP Note Purchase Agreement [Member] | The 10% Secured Convertible Promissory Notes [Member]
Debt Instrument, Interest Rate, Stated Percentage																			10.00%
Debt Instrument, Face Amount | $																			$ 2,500,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights																			2,500,000
Class of Warrant or Right, Term																			5 years
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares																			$ 1
Consulting Agreement [Member] | Consultant [Member]
Stock Issued During Period, Shares, Issued for Services						25,000
Shares Issued, Price Per Share | $ / shares						$ 16,250
Stock Issued During Period, Value, Issued for Services | $						$ 15,000
Consulting Agreement [Member] | Governance Box, Inc [Member]
Stock Issued During Period, Shares, Issued for Services					160,000
Shares Issued, Price Per Share | $ / shares					$ 104,000
SolBright Renewable Energy, LLC [Member] | Common Stock [Member]
Stock Issued During Period, Shares, Acquisitions																			4,000,000
Stock Issued During Period, Value, Acquisitions | $																			$ 5,120,000
SolBright Renewable Energy, LLC [Member] | Convertible Promissory Note [Member]
Debt Instrument, Face Amount | $															$ 6,000,000																								$ 6,000,000
SolBright Renewable Energy, LLC [Member] | The 4% Series A Convertible Preferred Stock [Member]
Preferred Stock, Par or Stated Value Per Share | $ / shares																			$ 0.0001
Debt Instrument, Interest Rate, Stated Percentage																			4.00%
SolBright Renewable Energy, LLC [Member] | Asset Purchase Agreement [Member] | Common Stock [Member]
Shares Issued, Price Per Share | $ / shares																			$ 1.28
Business Acquisition, Anti Dilution Protection, Value of Stock Issued | $																			$ 4,000,000
SolBright Renewable Energy, LLC [Member] | Asset Purchase Agreement [Member] | The 4% Series A Convertible Preferred Stock [Member]
Conversion of Stock, Shares Converted											4,000,000
SolBright Renewable Energy, LLC [Member] | Asset Purchase Agreement [Member] | Common Stock Consideration [Member]
Stock Issued During Period, Shares, New Issues																			4,000,000
Business Acquisition, Anti Dilution Protection, Value of Stock Issued | $																			$ 4,000,000
SolBright Renewable Energy, LLC [Member] | Asset Purchase Agreement [Member] | Common Stock Consideration [Member] | The 4% Series A Convertible Preferred Stock [Member]
Preferred Stock, Par or Stated Value Per Share | $ / shares											$ 0.0001
Preferred Stock, Shares Authorized											5,000,000
Aggregate Indebtedness | $											$ 6,000,000