Bion Environmental (BNET) 10-K 24 Sep 19 2019 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2019	Aug. 21, 2019	Dec. 31, 2018
Document Information [Line Items]
Entity Registrant Name	BION ENVIRONMENTAL TECHNOLOGIES INC
Entity Central Index Key	0000875729
Trading Symbol	bnet
Current Fiscal Year End Date	--06-30
Entity Filer Category	Non-accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Common Stock, Shares Outstanding (in shares)		27,411,379
Entity Public Float			$ 10.5
Entity Shell Company	false
Document Type	10-K
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Amendment Flag	false
Title of 12(g) Security	Common Stock

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($)	Jun. 30, 2019	Jun. 30, 2018
Current assets:
Cash	$ 41,335	$ 22,013
Prepaid expenses	8,005	7,474
Deposits and other receivables	1,000	1,000
Total current assets	50,340	30,487
Property and equipment, net (Note 3)	2,616	1,448
Total assets	52,956	31,935
Current liabilities:
Accounts payable and accrued expenses	715,554	719,633
Series B Redeemable Convertible Preferred stock, $0.01 par value, 50,000 shares authorized; 200 shares issued and outstanding, liquidation preference of $36,000 and $34,000, respectively (Note 7)	33,400	31,400
Deferred compensation (Note 4)	874,162	421,641
Loan payable and accrued interest (Note 5)	9,303,270	9,028,983
Total current liabilities	10,926,386	10,201,657
Convertible notes payable - affiliates (Note 6)	3,801,168	3,525,216
Total liabilities	14,727,554	13,726,873
Deficit:
Common stock, no par value, 100,000,000 shares authorized, 28,068,688 and 25,939,892 shares issued, respectively; 27,364,379 and 25,235,583 shares outstanding, respectively
Additional paid-in capital	110,126,802	108,117,330
Subscription receivable - affiliates (Note 7)	(504,650)	(174,650)
Accumulated deficit	(124,346,158)	(121,691,956)
Total Bion's stockholders’ deficit	(14,724,006)	(13,749,276)
Noncontrolling interest	49,408	54,338
Total deficit	(14,674,598)	(13,694,938)
Total liabilities and deficit	52,956	31,935
Series A Preferred Stock [Member]
Deficit:
Preferred stock
Series C Preferred Stock [Member]
Deficit:
Preferred stock

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($)	Jun. 30, 2019	Jun. 30, 2018
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	100,000,000	100,000,000
Common stock, issued (in shares)	28,068,688	25,939,892
Common stock, outstanding (in shares)	27,364,379	25,235,583
Series B Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)	50,000	50,000
Preferred stock, issued (in shares)	200	200
Preferred stock, outstanding (in shares)	200	200
Preferred stock, liquidation	$ 35,500	$ 34,000
Series A Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)	50,000	50,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Series C Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)	60,000	60,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Revenue
Operating expenses:
General and administrative (including stock-based compensation (Note 7))	1,724,677	2,335,499
Depreciation	1,314	1,744
Research and development (including stock-based compensation (Note 7))	520,084	1,185,317
Total operating expenses	2,246,075	3,522,560
Loss from operations	(2,246,075)	(3,522,560)
Other expense (income):
Gain on extinguishment of liabilities		(875,852)
Conversion inducement		10,784
Interest expense	413,057	360,492
Total other expense (income)	413,057	(504,576)
Net loss	(2,659,132)	(3,017,984)
Net loss attributable to the noncontrolling interest	4,930	2,994
Net loss applicable to Bion's common stockholders	$ (2,654,202)	$ (3,014,990)
Net loss applicable to Bion's common stockholders per basic and diluted common share (in dollars per share)	$ (0.10)	$ (0.12)
Weighted-average number of common shares outstanding:
Basic and diluted (in shares)	26,522,326	24,439,059

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity (Deficit) - USD ($)	Preferred Stock [Member]Series A Preferred Stock [Member]	Preferred Stock [Member]Series C Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Subscriptions Receivable [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	Total
Balances (in shares) at Jun. 30, 2017			24,748,213
Balances at Jun. 30, 2017				$ 103,540,352	$ (40,000)	$ (118,676,966)	$ 57,332	$ (15,119,282)
Issuance of common stock for services (in shares)			57,790
Issuance of common stock for services				42,583				42,583
Vesting of options and stock bonuses for services				1,391,671				1,391,671
Modification of options				349,656				349,656
Sale of units (in shares)			567,331
Sale of units				350,496				350,496
Commissions on sale of units (in shares)			3,441
Commissions on sale of units				(14,875)				(14,875)
Issuance of warrants				183,000	(134,650)			48,350
Warrants exercised for common stock (in shares)			135,681
Warrants exercised for common stock				78,625				78,625
Modification of warrants				296,852				296,852
Conversion of debt and liabilities (in shares)			427,436
Conversion of debt and liabilities				213,718				213,718
Extinguishment of deferred compensation - related parties				1,685,252				1,685,252
Net loss						(3,014,990)	(2,994)	(3,017,984)
Conversion of debt and liabilities (in shares)			427,436
Balances (in shares) at Jun. 30, 2018			25,939,892
Balances at Jun. 30, 2018				108,117,330	(174,650)	(121,691,956)	54,338	(13,694,938)
Issuance of common stock for services (in shares)			134,162
Issuance of common stock for services				93,408				93,408
Vesting of options and stock bonuses for services				236,100				236,100
Modification of options				222,300				222,300
Sale of units (in shares)			1,793,606
Sale of units				896,801				$ 896,801
Commissions on sale of units (in shares)			1,028					1,028
Issuance of warrants				336,250	(330,000)			$ 6,250
Modification of warrants				188,493				188,493
Conversion of debt and liabilities (in shares)			200,000
Conversion of debt and liabilities				100,000				100,000
Net loss						(2,654,202)	(4,930)	(2,659,132)
Commissions on sale of units				(63,880)				(63,880)
Conversion of debt and liabilities (in shares)			200,000
Balances (in shares) at Jun. 30, 2019			28,068,688
Balances at Jun. 30, 2019				$ 110,126,802	$ (504,650)	$ (124,346,158)	$ 49,408	$ (14,674,598)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (2,659,132)	$ (3,017,984)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation expense	1,314	1,744
Accrued interest on loan payable, deferred compensation and other	448,690	395,659
Stock-based compensation	721,084	2,129,112
Gain on extinguishment of liabilities		(875,852)
Conversion inducement		10,784
Increase in prepaid expenses	(531)	(1,048)
Increase in accounts payable and accrued expenses	8,858	76,604
Increase in deferred compensation	668,600	813,600
Net cash used in operating activities	(811,117)	(467,381)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of property and equipment	(2,482)
Net cash used by investing activities	(2,482)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from sale of units	896,801	350,496
Commissions on sale of units	(63,880)	(14,875)
Proceeds from exercise of warrants		67,841
Repayment of loans and note payable - affiliates		(17,500)
Proceeds from loans payable - affiliates		30,500
Net cash provided by financing activities	832,921	416,462
Net increase (decrease) in cash	19,322	(50,919)
Cash at beginning of period	22,013	72,932
Cash at end of period	41,335	22,013
Supplemental disclosure of cash flow information:
Cash paid for interest
Non-cash investing and financing transactions:
Shares issued for warrant exercise commissions	514
Warrants issued for unit commissions	4,850
Purchase of warrants for subscription receivable - affiliates	330,000	134,650
Forgiveness of deferred compensation - related parties		1,685,252
Conversion of debt and liabilities	100,000	213,718
Conversion of deferred compensation into note payable - affiliate	$ 150,000

Note 1 - Organization, Nature o

Note 1 - Organization, Nature of Business, Going Concern and Management's Plans	12 Months Ended
	Jun. 30, 2019
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	1. Organization and nature of business: Bion Environmental Technologies, Inc. (“Bion” or “We” or the “Company”) was incorporated in 1987 third third From 2014 2019 third “3G 2019 no may 3G 2 For the past decade, Bion has been directed toward creating applications of our patented and proprietary waste management technologies and technology platform to pursue JVs in three 1 a) government policy supports such efforts (such as the Chesapeake Bay watershed, Great Lakes Basin states, and/or other states and watersheds facing EPA ‘total maximum daily load’ (“TMDL”) issues), and/or b) CAFO’s need our technology to obtain permits to expand or develop without negative environmental consequences. 2 3G may one may 3G 3 In both categories 1 2 The opportunities described at 1 2 At this time, our primary focus is on category 2 3G 2 3G may During 2008 first 1 2011. January 26, 2009 $7.75 1, “PA1” 1 August 12, 2010 PA1 1 November 2010. November 3, 2010. PA1 1 May 2011. 1 2012 2011 1 August 1, 2012 1 PA1 1 PA1’s 1 PA1 1 PA1 1 PA1 four PA1 not January 2013. not 2013, June 30, 2019. three 1 PA1 1 $3,750,000 June 30, 2015. 2016 PA1 $1,684,562 1 1 PA1’s 1 1 On September 25, 2014, PA1 $8,137,117 October 24, 2014. PA1 not not PA1 PA1’s 2014. No 5 not 1 may no PA1 1 180 During August 2012, 1 PA1 The economics (potential revenues, profitability and continued operation) of the Kreider 1 On May 5, 2016, PA2 “PA2” 2” The Kreider projects are owned and operated by Bion through separate subsidiaries, in which Kreider has the option to acquire a noncontrolling interest. Substantial capital (equity and/or debt) has been and will continue to be expended on these projects. Additional funds will be required for continuing operations and additional capital expenditures for upgrades at Kreider 1 no 1 1 Kreider Farms – 3G Bion is completing an envelope of policy change and technology pilots that will allow it to move forward with the first 3G 3G two 2019 2 2019: 1. 575 799 2 2 2. 3G The 3G 2 two 1,800 six million three million 2 450 2 three may Bion has a long-standing relationship with Kreider Farms including a 2016 SB575 SB799 2. may 6 SB575 2 2019. Assuming there are positive developments related to the market for nutrient reductions in Pennsylvania, the Company intends to pursue development, design and construction of the Kreider 2 2020. Bion’s current long-term goal is to acquire or develop, or have in a development pipeline, 6 12 36 48 A significant portion of Bion’s activities concern efforts with private and public stakeholders (at local and state level) in Pennsylvania (and other Chesapeake Bay and Midwest and Great Lakes states) and at the federal level EPA and the Department of Agriculture (“USDA”) (and other executive departments) and Congress) to establish appropriate public policies which will create regulations and funding mechanisms that foster installation of the low cost environmental solutions that Bion (and others) can provide through clean-up of agricultural waste streams. The Company anticipates that such efforts will continue in Pennsylvania and other Chesapeake Bay watershed states throughout the next 12 Going concern and management’s plans: The consolidated financial statements have been prepared assuming the Company will continue as a going concern. The Company has not $2,659,000 $3,018,000 June 30, 2019 2018, June 30, 2019, $10,876,000 $14,724,000, not may The Company continues to explore sources of additional financing (including potential agreements with strategic partners – both financial and ag-industry) to satisfy its current and future operating and capital expenditure requirements as it is not During the years ended June 30, 2019 2018, $897,000 $418,000 2019 2018 During fiscal years 2019 2018, 4 6 June 30, 2018, one $2,404,000. June 30, 2014 2015 June 30, 2018. not 1 The Company will need to obtain additional capital to fund its operations and technology development, to satisfy existing creditors, to develop Projects (including Integrated Projects and the Kreider 2 1 $2,500,000 $50,000,000 twelve no There is no twelve no not

Note 2 - Significant Accounting

Note 2 - Significant Accounting Policies	12 Months Ended
	Jun. 30, 2019
Notes to Financial Statements
Significant Accounting Policies [Text Block]	2. Principles of consolidation: The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, Bion Integrated Projects Group, Inc. (“Projects Group”), Bion Technologies, Inc., BionSoil, Inc., Bion Services, PA1, and PA2; and its 58.9% owned subsidiary, Centerpoint Corporation (“Centerpoint”). All significant intercompany accounts and transactions have been eliminated in consolidation. Cash and cash equivalents: The Company considers all highly liquid investments purchased with an original maturity of three months or less to be cash and cash equivalents. Property and equipment: Property and equipment are stated at cost and are depreciated, when placed into service, using the straight-line method over the estimated useful lives of the related assets, generally three to twenty years. The Company capitalizes all direct costs and all indirect incrementally identifiable costs related to the design and construction of its Integrated Projects. The Company reviews its property and equipment for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. An impairment loss would be recognized based on the amount by which the carrying value of the assets or asset group exceeds its estimated fair value, and is recognized as a loss from operations. Patents: The Company has elected to expense all costs and filing fees related to obtaining patents (resulting in no related asset being recognized in the Company’s balance sheet) because the Company believes such costs and fees are immaterial (in the context of the Company’s total costs/expenses) and have no direct relationship to the value of the Company’s patents. Stock-based compensation: The Company follows the provisions of Accounting Standards Codification (“ASC”) 718, which generally requires that share-based compensation transactions be accounted and recognized in the statement of operations based upon their grant date fair values. Derivative Financial Instruments: Pursuant to ASC Topic 815 “Derivatives and Hedging” (“Topic 815” ), the Company reviews all financial instruments for the existence of features which may require fair value accounting and a related mark-to-market adjustment at each reporting period end. Once determined, the Company assesses these instruments as derivative liabilities. The fair value of these instruments is adjusted to reflect the fair value at each reporting period end, with any increase or decrease in the fair value being recorded in results of operations as an adjustment to fair value of derivatives. Warrants: The Company has issued warrants to purchase common shares of the Company. Warrants are valued using a fair value based method, whereby the fair value of the warrant is determined at the warrant issue date using a market-based option valuation model based on factors including an evaluation of the Company’s value as of the date of the issuance, consideration of the Company’s limited liquid resources and business prospects, the market price of the Company’s stock in its mostly inactive public market and the historical valuations and purchases of the Company’s warrants. When warrants are issued in combination with debt or equity securities, the warrants are valued and accounted for based on the relative fair value of the warrants in relation to the total value assigned to the debt or equity securities and warrants combined. Concentrations of credit risk: The Company's financial instruments that are exposed to concentrations of credit risk consist of cash. The Company's cash is in demand deposit accounts placed with federally insured financial institutions and selected brokerage accounts. Such deposit accounts at times may exceed federally insured limits. The Company has not experienced any losses on such accounts. Noncontrolling interests: In accordance with ASC 810, “Consolidation”, the Company separately classifies noncontrolling interests within the equity section of the consolidated balance sheets and separately reports the amounts attributable to controlling and noncontrolling interests in the consolidated statements of operations. In addition, the noncontrolling interest continues to be attributed its share of losses even if that attribution results in a deficit noncontrolling interest balance. Fair value measurements: Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date in the principal or most advantageous market. The Company uses a fair value hierarchy that has three levels of inputs, both observable and unobservable, with use of the lowest possible level of input to determine fair value. Level 1 – quoted prices (unadjusted) in active markets for identical assets or liabilities; Level 2 – observable inputs other than Level 1, quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active, and model-derived prices whose inputs are observable or whose significant value drivers are observable; and Level 3 – assets and liabilities whose significant value drivers are unobservable. Observable inputs are based on market data obtained from independent sources, while unobservable inputs are based on the Company’s market assumptions. Unobservable inputs require significant management judgment or estimation. In some cases, the inputs used to measure an asset or liability may fall into different levels of the fair value hierarchy. In those instances, the fair value measurement is required to be classified using the lowest level of input that is significant to the fair value measurement. Such determination requires significant management judgment. The fair value of cash and accounts payable approximates their carrying amounts due to their short-term maturities. The fair value of the loan payable is indeterminable at this time due to the nature of the arrangement with a state agency and the fact that it is in default. The fair value of the redeemable preferred stock approximates its carrying value due to the dividends accrued on the preferred stock which are reflected as part of the redemption value. The fair value of the deferred compensation and convertible notes payable - affiliates are not practicable to estimate due to the related party nature of the underlying transactions. Revenue Recognition: The Company currently does not generate revenue and if and when the Company begins to generate revenue the Company will comply with the provisions of Accounting Standards Codification (“ASC”) 606 “Revenue from Contracts with Customers”. Income taxes: The Company recognizes deferred tax assets and liabilities for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their tax bases, as well as net operating losses. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets or liabilities of a change in tax rates is recognized in the period in which the tax change occurs. A valuation allowance is provided to reduce the deferred tax assets by 100%, since the Company believes that at this time it is more likely than not that the deferred tax asset will not be realized. The Company is no longer subject to U.S. federal and state tax examinations for fiscal years before 2009. Management does not believe there will be any material changes in the Company’s unrecognized tax positions over the next 12 months. The Company's policy is to recognize interest and penalties accrued on any unrecognized tax benefits as a component of income tax expense. As of June 30, 2019, there were no penalties or accrued interest amounts associated with any unrecognized tax benefits, nor was any interest expense recognized during the years ended June 30, 2019 and 2018. Loss per share: Basic loss per share amounts are calculated using the weighted average number of shares of common stock outstanding during the period. Diluted loss per share assumes the conversion, exercise or issuance of all potential common stock instruments, such as options or warrants, unless the effect is to reduce the loss per share or increase the earnings per share. During the years ended June 30, 2019 and 2018, the basic and diluted loss per share was the same, as the impact of potential dilutive common shares was anti-dilutive. The following table represents the warrants, options and convertible securities excluded from the calculation of basic loss per share: June 30, 2019 June 30, 2018 Warrants 16,696,007 12,245,452 Options 7,411,600 6,827,225 Convertible debt 8,631,772 7,549,082 Convertible preferred stock 18,000 17,000 The following is a reconciliation of the denominators of the basic and diluted loss per share computations for the years ended June 30, 2019 and 2018: Year ended June 30, 2019 Year ended June 30, 2018 Shares issued – beginning of period 25,939,892 24,748,213 Shares held by subsidiaries (Note 7) (704,309 ) (704,309 ) Shares outstanding – beginning of period 25,235,583 24,043,904 Weighted average shares issued during the period 1,286,743 395,155 Diluted weighted average shares – end of period 26,522,326 24,439,059 Use of estimates: In preparing the Company’s consolidated financial statements in conformity with accounting principles generally accepted in the United States of America, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Recent Accounting Pronouncements: The Company continually assesses any new accounting pronouncements to determine their applicability. When it is determined that a new accounting pronouncement affects the Company’s financial reporting, the Company undertakes a study to determine the consequences of the change to its financial statements and assures that there are proper controls in place to ascertain that the Company’s financial statements properly reflect the change. In May 2017, the FASB issued ASU No. 2017 - 09 “Scope of Modification Accounting” which clarifies when changes to the terms or conditions of a share-based payment awards must be accounted for as modifications. The new guidance will reduce diversity in practice and result in fewer changes to the terms of an award being accounted for as modifications. ASU No. 2017 - 09 will be applied prospectively to awards modified on or after the adoption date. The guidance is effective for annual periods, and interim periods within those annual periods beginning after December 15, 2017, with early adoption permitted. The adoption of ASU 2017 - 09 did not have a material impact on the Company’s financial statements. In June 2018, the FASB issued ASU No. 2018 - 07 “Compensation – Stock Compensation – Improvements to Nonemployee Share-Based Payment Accounting” to simplify the accounting for share based payments granted to nonemployees. Under this guidance, payments to nonemployees would be aligned with the requirements for share based payments granted to employees and is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. The Company does not believe the adoption of this guidance will have a material impact on the Company’s financial statements.

Note 3 - Property and Equipment

Note 3 - Property and Equipment	12 Months Ended
	Jun. 30, 2019
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	3. Property and equipment consists of the following: June 30, 2019 June 30, 2018 Machinery and equipment $ 2,222,670 $ 2,222,670 Buildings and structures 401,470 401,470 Computers and office equipment 173,245 171,613 2,797,385 2,795,753 Less accumulated depreciation (2,794,769 ) (2,794,305 ) $ 2,616 $ 1,448 As of June 30, 2019, 1 June 30, 2019 no Depreciation expense was $1,314 $1,744 June 30, 2019 2018,

Note 4 - Deferred Compensation

Note 4 - Deferred Compensation	12 Months Ended
	Jun. 30, 2019
Notes to Financial Statements
Share-based Payment Arrangement [Text Block]	4. The Company owes deferred compensation to various employees, former employees and consultants totaling $874,162 $421,641 June 30, 2019 2018, June 30, 2019, $363,761 $133,972 January 1, 2015, January 1, 2015, 4% first five 10 June 30, 2018 $219,157 $56,892, $302,945 $72,108 June 30, 2019 2018, 3% $300,000 $ 0.75 December 31, 2019 ( 2006 2006 no $984 1,406 June 30, 2019 $72,500, not During the year ended June 30, 2019, $87,063 $12,937, 200,000 $0.50 one one one $0.75 December 31, 2022. During the year ended June 30, 2019, $150,000 2019 6 4% May 15, 2021. The Company recorded interest expense of $20,983 $15,747 $34,789 $28,166 June 30, 2019 2018,

Note 5 - Loan Payable

Note 5 - Loan Payable	12 Months Ended
	Jun. 30, 2019
Notes to Financial Statements
Debt Disclosure [Text Block]	5. PA1, $9,303,270 June 30, 2019 1 $1,549,270 June 30, 2019. $7,754,000 three ten 2.547% 1 5 3.184% 6 $4,273,000 2013 2019, $794,000 2020, $819,000 2021, $846,000 2022, $873,000 2023 $149,000 2024. 1 1 not 1 $238,655 $197,494 June 30, 2019 2018, PA1 PA1 not January 2013. not 2013, June 30, 2019. On September 25, 2014, PA1 $8,137,117 October 24, 2014. PA1 not not PA1 no no 5 not may PA1 1 180 In connection with the Pennvest Loan financing documents, the Company provided a ‘technology guaranty’ regarding nutrient reduction performance of Kreider 1 1’s August 2012 1 PA1.

Note 6 - Convertible Notes Paya

Note 6 - Convertible Notes Payable - Affiliates	12 Months Ended
	Jun. 30, 2019
Notes to Financial Statements
Convertible Debt [Text Block]	6. January 2015 The January 2015 4% December 31, 2017. June 30, 2017, January 2015 July 1, 2019 July 1, 2021 September 30, 2018. January 2015 one one $0.50 December 31, 2020. $1.00 December 31, 2020. $0.50 no 815 15 not not not 815 10, As of June 30, 2019, January 2015 $1,727,923, $897,287 $446,320, June 30, 2018, January 2015 $1,669,342, $866,866 $431,188, $104,134 $104,135 June 30, 2019 2018, During the year ended June 30, 2019, 3,000,000 300,000 $0.60 June 30, 2025 June 30, 2023, $0.10 $300,000 $30,000 January 2015 7 4% June 30, 2019 $10,948 $1,095, September 2015 During the year ended June 30, 2016, September 2015 September 2015 4% December 31, 2017 may $0.60 June 30, 2017, September 2015 July 1, 2019 June 30, 2018, July 1, 2019. June 30, 2019, September 2015 July 1, 2021. $0.60 September 2015 no June 30, 2018, September 2015 two $130,000, June 30, 2019, $300,000 second The balances of the September 2015 June 30, 2019, $159,963, $18,879 $400,405, September 2015 June 30, 2018, $452,400, $18,224 $87,196, The Company recorded interest expense of $21,428 $21,094 June 30, 2019 2018, 2019 During the year ended June 30, 2019, $150,000 2019 2019 4% May 31, 2021 June 30, 2019 2019 $150,391. 2019 one one $0.50 $0.75 December 31, 2021. $0.50 no

Note 7 - Stockholders' Equity

Note 7 - Stockholders' Equity	12 Months Ended
	Jun. 30, 2019
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	7. Series B Preferred stock: Since July 1, 2014, 200 $0.01 $2.00 2.5% $100 three 200 not During the years ended June 30, 2019 2018, $2,000 $2,000 June 30, 2019, $16,000. Common stock: Holders of common stock are entitled to one no may may Centerpoint holds 704,309 During the year ended June 30, 2018, 57,790 $0.52 $0.91 $42,583, two During the year ended June 30, 2018, $0.75 one one one $1.00 June 30, 2018 267,331 $200,496, $185,621 267,331 133,666 $0.05 $6,152 $194,344 During the year ended June 30, 2018, $0.50 one one one $0.75 September 30, 2018 300,000 $150,000. 300,000 150,000 $0.05 $4,991 $145,009 During the year ended June 30, 2018, two March 31, 2018 June 30, 2018, $0.50 March 1, 2018 March 31, 2018and May 18, 2018 June 15, 2018, March 31, 2018 first 15 April 15, 2018 March 31, 2018 April 15, 2018. June 15, 2018 second 15 June 30, 2018. $0.50 $1.00, $10,784 135,681 135,681 $67,841 June 30, 2018. 3,441 During the year ended June 30, 2018, $60,178 120,356 $0.50 one one one 60,178 $0.75 September 30, 2018. During the year ended June 30, 2018, $70,000, $18,000 $65,540, 307,080 $0.50 one one one $0.75 December 31, 2020. During the year ended June 30, 2019, 134,162 $0.50 $0.74 $93,408 two During the year ended June 30, 2019, 1,028 June 30, 2018 $514. During the year ended June 30, 2019, four $0.50 one one one $0.75 June 30, 2019 December 31, 2020, 1,793,606 $896,801, $832,921 1,793,606 896,806 $0.05 $31,560 $865,241 During the year ended June 30, 2019, $87,063 $12,937, 200,000 $0.50 one one one $0.75 December 31, 2022. Warrants: As of June 30, 2019, 16.7 $0.60 $2.00 June 30, 2025. The weighted-average exercise price for the outstanding warrants is $0.95, June 30, 2019 3.6 During the year ended June 30, 2019, 70,069 $0.85 $3.00 During the year ended June 30, 2019, four $0.50 one one one $0.75 June 30, 2019 December 31, 2020, 1,793,606 $896,801, $832,921 1,793,606 896,806 $0.05 $31,560 $865,241 During the year ended June 30, 2019, $300,000 3,000,000 $0.60 December 31, 2025. 4% January 2015 June 30, 2019 $10,948. July 1, 2020. During the year ended June 30, 2019, $30,000 300,000 $0.60 December 31, 2023. 75% 4% $30,000 January 2015 June 30, 2019 $1,095. July 1, 2020. During the year ended June 30, 2019, $87,063 $12,937, 200,000 $0.50 one one one $0.75 December 31, 2022. During the year ended June 30, 2019, 125,000 125,000 $0.74 $1.20 August 27, 2020 October 27, 2020. $6,250, During the year ended June 30, 2019, 5,947,864 1,765,000 3,104,010 September 30, 2018 December 31, 2021. $163,026 $88,250 $68,758 $25,467 Stock options: The Company’s 2006 “2006 30,000,000 2006 may no may ten During the year ended June 30, 2018, $349,656 $119,350 $68,000 During the year ended June 30, 2019, $222,300. The Company recorded compensation expense related to employee stock options of $236,100 $1,369,350 June 30, 2019 2018, 655,000 2,647,500 June 30, 2019 2018, The fair value of the options granted during the years ended June 30, 2019 2018 Weighted Average, June 30, 2019 Range, June 30, 2019 Weighted Average, June 30, 2018 Range, June 30, 2018 Volatility 68% 58% - 76% 74% 68% - 75% Dividend yield - - - - Risk-free interest rate 2.34% 1.92% - 2.78% 2.44% 1.75% - 2.64% Expected term (years) 4.1 1.9 to 4.6 5 3 - 6 The expected volatility was based on the historical price volatility of the Company’s common stock. The dividend yield represents the Company’s anticipated cash dividend on common stock over the expected term of the stock options. The U.S. Treasury bill rate for the expected term of the stock options was utilized to determine the risk-free interest rate. The expected term of stock options represents the period of time the stock options granted are expected to be outstanding based upon management’s estimates. A summary of option activity under the 2006 June 30, 2019 2018 Options Weighted- Average Exercise Price Weighted- Average Remaining Contractual Life Aggregate Intrinsic Value Outstanding at July 1, 2017 4,545,097 $ 1.42 2.9 $ 176,575 Granted 2,647,500 0.76 Exercised - - Forfeited - - Expired (365,312 ) 2.35 Outstanding at June 30, 2018 6,827,225 $ 1.11 3.8 $ - Granted 655,000 0.74 Exercised - - Forfeited - - Expired (70,625 ) 1.26 Outstanding at June 30, 2019 7,411,600 $ 1.08 3.1 $ 20,375 Exercisable at June 30, 2019 7,411,600 $ 1.08 3.1 $ 20,375 The following table presents information relating to nonvested stock options as of June 30, 2019: Options Weighted Average Grant-Date Fair Value Nonvested at July 1, 2018 - $ - Granted 655,000 0.36 Vested (655,000 ) 0.36 Nonvested at June 30, 2019 - $ - The total fair value of stock options that vested during the years ended June 30, 2019 2018 $236,100 $1,376,250 June 30, 2019, no Stock-based employee compensation charges in operating expenses in the Company’s financial statements for the years ended June 30, 2019 2018 Year ended June 30, 2019 Year ended June 30, 2018 General and administrative: Fair value of stock bonuses expensed $ - $ 8,723 Change in fair value from modification of option terms 211,185 243,761 Change in fair value from modification of warrant terms 118,233 163,956 Fair value of stock options expensed 206,525 782,135 Total $ 535,943 $ 1,198,575 Research and development: Fair value of stock bonus expensed $ - $ 15,098 Change in fair value from modification of option terms 11,115 105,895 Change in fair value from modification of warrant terms 44,793 132,896 Fair value of stock options expensed 29,575 587,215 Total $ 85,483 $ 841,104

Note 8 - Commitments and Contin

Note 8 - Commitments and Contingencies	12 Months Ended
	Jun. 30, 2019
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	8. Employment and consulting agreements: Smith has held the positions of Director, President and General Counsel of Company and its subsidiaries under various agreements (and extensions) and terms since March 2003. October 10, 2016, $18,000 October 1, 2016 $125,000 $0.75 March 15, 2018 ( April 27, 2017 $300,000 $0.75 December 31, 2019), third July 29, 2018 Since March 31, 2005, May 13, 2011. February 10, 2015, December 31, 2017, ( six $31,000 October 2016 $125,000 $0.75 March 15, 2018 ( April 27, 2017 $300,000 $0.75 December 31, 2019). February 2018, two $372,000 $2,000 August 1, 2018, December 31, 2022) 2 $300,000 3,000,000 $0.60 June 30, 2025. $300,000 January 2015 6 7 June 30, 2019 $10,948. Execution/exercise bonuses: As part of agreements the Company entered into with Bassani and Smith effective May 15, 2013, 50% 50% five one $.05 three three January 1, 2016 $.01 During the year ended June 30, 2014, 50% During the year ended June 30, 2018, 50% November 7, 2017, two During the year ended June 30, 2018, 50% 75% 75% During the year ended June 30, 2019, five one $0.01 one may As of June 30, 2019, 50 90% 7,239,600 12,032,095 Litigation: On September 25, 2014, PA1 $8,137,117 October 24, 2014. PA1 not not not August 2012, 1 PA1. No not 1 5 The Company currently is not

Note 9 - Related Party Transact

Note 9 - Related Party Transactions	12 Months Ended
	Jun. 30, 2019
Notes to Financial Statements
Related Party Transactions Disclosure [Text Block]	9. The Coalition for Affordable Bay Solutions (“CABS”), a not June 30, 2017 $165,650 $68,900 129,000 $96,750 third June 30, 2018, $41,000 During the year ended June 30, 2019, $30,000 16,000 $8,000 third June 30, 2019 $37,220 During the year ended June 30, 2019, not June 30, 2018 2017. not

Note 10 - Income Taxes

Note 10 - Income Taxes	12 Months Ended
	Jun. 30, 2019
Notes to Financial Statements
Income Tax Disclosure [Text Block]	10 . INCOME TAXES: The reconciliation between the expected federal income tax benefit computed by applying the Federal statutory rate to loss before income taxes and the actual benefit for taxes on loss for the years ended June 30, 2019 2018 2019 2018 Expected income tax benefit at statutory rate $ (557,000 ) $ (1,025,000 ) State taxes, net of federal benefit (97,000 ) (110,000 ) Deferred compensation - 790,000 Permanent differences and other 2,000 3,000 Expiration of net operating allowances 850,000 1,201,000 Tax Cut and Jobs Act - (275,000 ) Change in valuation allowance (198,000 ) (584,000 ) Income tax benefit $ - $ - The Company has net operating loss carry-forwards (“NOLs”) for tax purposes of approximately $50,914,000 June 30, 2019. 2038. The utilization of the NOLs may 382 The Company’s deferred tax assets for the years ended June 30, 2019 2018 2019 2018 NOL Carryforwards (Federal and State) $ 11,864,000 $ 12,394,000 Stock-based compensation 4,424,000 4,244,000 Impairment 1,340,000 1,340,000 Deferred compensation 1,027,000 875,000 Gross deferred tax assets 18,655,000 18,853,000 Valuation allowance (18,655,000 ) (18,853,000 ) Net deferred tax assets $ - $ - The Company has provided a valuation allowance of 100%

Note 11 - 401(k) Plan

Note 11 - 401(k) Plan	12 Months Ended
	Jun. 30, 2019
Notes to Financial Statements
Pension and Other Postretirement Benefits Disclosure [Text Block]	11 . 401 The Company has adopted the Bion Technologies, Inc. 401 “401 401 not 401 21 no

Note 12 - Subsequent Events

Note 12 - Subsequent Events	12 Months Ended
	Jun. 30, 2019
Notes to Financial Statements
Subsequent Events [Text Block]	12. The Company has evaluated events that occurred subsequent to June 30, 2019 From July 1, 2019 September 23, 2019, 29,000 $16,350. From July 1, 2019 September 23, 2019, 18,000 $0.50 $9,000. one one $0.75 December 31, 2020. From July 1, 2019 September 23, 2019, 205,914 $0.50 $102,957. one one $0.75 December 31, 2020. From July 1, 2019 September 23, 2019, $20,000 $15,000,

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	Principles of consolidation: The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, Bion Integrated Projects Group, Inc. (“Projects Group”), Bion Technologies, Inc., BionSoil, Inc., Bion Services, PA1, PA2; 58.9%
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash and cash equivalents: The Company considers all highly liquid investments purchased with an original maturity of three
Property, Plant and Equipment, Policy [Policy Text Block]	Property and equipment: Property and equipment are stated at cost and are depreciated, when placed into service, using the straight-line method over the estimated useful lives of the related assets, generally three twenty may not
Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block]	Patents: The Company has elected to expense all costs and filing fees related to obtaining patents (resulting in no no
Share-based Payment Arrangement [Policy Text Block]	Stock-based compensation: The Company follows the provisions of Accounting Standards Codification (“ASC”) 718,
Derivatives, Policy [Policy Text Block]	Derivative Financial Instruments: Pursuant to ASC Topic 815 815” may
Equity Issuances Warrants Policy [Policy Text Block]	Warrants: The Company has issued warrants to purchase common shares of the Company. Warrants are valued using a fair value based method, whereby the fair value of the warrant is determined at the warrant issue date using a market-based option valuation model based on factors including an evaluation of the Company’s value as of the date of the issuance, consideration of the Company’s limited liquid resources and business prospects, the market price of the Company’s stock in its mostly inactive public market and the historical valuations and purchases of the Company’s warrants. When warrants are issued in combination with debt or equity securities, the warrants are valued and accounted for based on the relative fair value of the warrants in relation to the total value assigned to the debt or equity securities and warrants combined.
Concentration Risk, Credit Risk, Policy [Policy Text Block]	Concentrations of credit risk: The Company's financial instruments that are exposed to concentrations of credit risk consist of cash. The Company's cash is in demand deposit accounts placed with federally insured financial institutions and selected brokerage accounts. Such deposit accounts at times may not
Minority Interest Policy [Policy Text Block]	Noncontrolling interests: In accordance with ASC 810,
Fair Value Measurement, Policy [Policy Text Block]	Fair value measurements: Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date in the principal or most advantageous market. The Company uses a fair value hierarchy that has three Level 1 Level 2 1, not Level 3 Observable inputs are based on market data obtained from independent sources, while unobservable inputs are based on the Company’s market assumptions. Unobservable inputs require significant management judgment or estimation. In some cases, the inputs used to measure an asset or liability may The fair value of cash and accounts payable approximates their carrying amounts due to their short-term maturities. The fair value of the loan payable is indeterminable at this time due to the nature of the arrangement with a state agency and the fact that it is in default. The fair value of the redeemable preferred stock approximates its carrying value due to the dividends accrued on the preferred stock which are reflected as part of the redemption value. The fair value of the deferred compensation and convertible notes payable - affiliates are not
Revenue [Policy Text Block]	Revenue Recognition: The Company currently does not 606
Income Tax, Policy [Policy Text Block]	Income taxes: The Company recognizes deferred tax assets and liabilities for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their tax bases, as well as net operating losses. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets or liabilities of a change in tax rates is recognized in the period in which the tax change occurs. A valuation allowance is provided to reduce the deferred tax assets by 100%, not not The Company is no 2009. not 12 The Company's policy is to recognize interest and penalties accrued on any unrecognized tax benefits as a component of income tax expense. As of June 30, 2019, no June 30, 2019 2018.
Earnings Per Share, Policy [Policy Text Block]	Loss per share: Basic loss per share amounts are calculated using the weighted average number of shares of common stock outstanding during the period. Diluted loss per share assumes the conversion, exercise or issuance of all potential common stock instruments, such as options or warrants, unless the effect is to reduce the loss per share or increase the earnings per share. During the years ended June 30, 2019 2018, The following table represents the warrants, options and convertible securities excluded from the calculation of basic loss per share: June 30, 2019 June 30, 2018 Warrants 16,696,007 12,245,452 Options 7,411,600 6,827,225 Convertible debt 8,631,772 7,549,082 Convertible preferred stock 18,000 17,000 The following is a reconciliation of the denominators of the basic and diluted loss per share computations for the years ended June 30, 2019 2018: Year ended June 30, 2019 Year ended June 30, 2018 Shares issued – beginning of period 25,939,892 24,748,213 Shares held by subsidiaries (Note 7) (704,309 ) (704,309 ) Shares outstanding – beginning of period 25,235,583 24,043,904 Weighted average shares issued during the period 1,286,743 395,155 Diluted weighted average shares – end of period 26,522,326 24,439,059
Use of Estimates, Policy [Policy Text Block]	Use of estimates: In preparing the Company’s consolidated financial statements in conformity with accounting principles generally accepted in the United States of America, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
New Accounting Pronouncements, Policy [Policy Text Block]	Recent Accounting Pronouncements: The Company continually assesses any new accounting pronouncements to determine their applicability. When it is determined that a new accounting pronouncement affects the Company’s financial reporting, the Company undertakes a study to determine the consequences of the change to its financial statements and assures that there are proper controls in place to ascertain that the Company’s financial statements properly reflect the change. In May 2017, No. 2017 09 No. 2017 09 December 15, 2017, 2017 09 not In June 2018, No. 2018 07 December 15, 2018. not

Note 2 - Significant Accounti_2

Note 2 - Significant Accounting Policies (Tables)	12 Months Ended
	Jun. 30, 2019
Notes Tables
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	June 30, 2019 June 30, 2018 Warrants 16,696,007 12,245,452 Options 7,411,600 6,827,225 Convertible debt 8,631,772 7,549,082 Convertible preferred stock 18,000 17,000
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Year ended June 30, 2019 Year ended June 30, 2018 Shares issued – beginning of period 25,939,892 24,748,213 Shares held by subsidiaries (Note 7) (704,309 ) (704,309 ) Shares outstanding – beginning of period 25,235,583 24,043,904 Weighted average shares issued during the period 1,286,743 395,155 Diluted weighted average shares – end of period 26,522,326 24,439,059

Note 3 - Property and Equipme_2

Note 3 - Property and Equipment (Tables)	12 Months Ended
	Jun. 30, 2019
Notes Tables
Property, Plant and Equipment [Table Text Block]	June 30, 2019 June 30, 2018 Machinery and equipment $ 2,222,670 $ 2,222,670 Buildings and structures 401,470 401,470 Computers and office equipment 173,245 171,613 2,797,385 2,795,753 Less accumulated depreciation (2,794,769 ) (2,794,305 ) $ 2,616 $ 1,448

Note 7 - Stockholders' Equity (

Note 7 - Stockholders' Equity (Tables)	12 Months Ended
	Jun. 30, 2019
Notes Tables
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	Weighted Average, June 30, 2019 Range, June 30, 2019 Weighted Average, June 30, 2018 Range, June 30, 2018 Volatility 68% 58% - 76% 74% 68% - 75% Dividend yield - - - - Risk-free interest rate 2.34% 1.92% - 2.78% 2.44% 1.75% - 2.64% Expected term (years) 4.1 1.9 to 4.6 5 3 - 6
Share-based Payment Arrangement, Option, Activity [Table Text Block]	Options Weighted- Average Exercise Price Weighted- Average Remaining Contractual Life Aggregate Intrinsic Value Outstanding at July 1, 2017 4,545,097 $ 1.42 2.9 $ 176,575 Granted 2,647,500 0.76 Exercised - - Forfeited - - Expired (365,312 ) 2.35 Outstanding at June 30, 2018 6,827,225 $ 1.11 3.8 $ - Granted 655,000 0.74 Exercised - - Forfeited - - Expired (70,625 ) 1.26 Outstanding at June 30, 2019 7,411,600 $ 1.08 3.1 $ 20,375 Exercisable at June 30, 2019 7,411,600 $ 1.08 3.1 $ 20,375
Schedule of Nonvested Share Activity [Table Text Block]	Options Weighted Average Grant-Date Fair Value Nonvested at July 1, 2018 - $ - Granted 655,000 0.36 Vested (655,000 ) 0.36 Nonvested at June 30, 2019 - $ -
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]	Year ended June 30, 2019 Year ended June 30, 2018 General and administrative: Fair value of stock bonuses expensed $ - $ 8,723 Change in fair value from modification of option terms 211,185 243,761 Change in fair value from modification of warrant terms 118,233 163,956 Fair value of stock options expensed 206,525 782,135 Total $ 535,943 $ 1,198,575 Research and development: Fair value of stock bonus expensed $ - $ 15,098 Change in fair value from modification of option terms 11,115 105,895 Change in fair value from modification of warrant terms 44,793 132,896 Fair value of stock options expensed 29,575 587,215 Total $ 85,483 $ 841,104

Note 10 - Income Taxes (Tables)

Note 10 - Income Taxes (Tables)	12 Months Ended
	Jun. 30, 2019
Notes Tables
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	2019 2018 Expected income tax benefit at statutory rate $ (557,000 ) $ (1,025,000 ) State taxes, net of federal benefit (97,000 ) (110,000 ) Deferred compensation - 790,000 Permanent differences and other 2,000 3,000 Expiration of net operating allowances 850,000 1,201,000 Tax Cut and Jobs Act - (275,000 ) Change in valuation allowance (198,000 ) (584,000 ) Income tax benefit $ - $ -
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	2019 2018 NOL Carryforwards (Federal and State) $ 11,864,000 $ 12,394,000 Stock-based compensation 4,424,000 4,244,000 Impairment 1,340,000 1,340,000 Deferred compensation 1,027,000 875,000 Gross deferred tax assets 18,655,000 18,853,000 Valuation allowance (18,655,000 ) (18,853,000 ) Net deferred tax assets $ - $ -

Note 1 - Organization, Nature_2

Note 1 - Organization, Nature of Business, Going Concern and Management's Plans (Details Textual) - USD ($)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2016	Jun. 30, 2015	Sep. 25, 2014	Jan. 26, 2009
Construction Loan						$ 7,750,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	$ (2,659,132)	$ (3,017,984)
Working Capital	(10,876,000)
Stockholders' Equity Attributable to Parent, Ending Balance	(14,724,006)	(13,749,276)
Proceeds from Issuance or Sale of Equity, Total	897,000	418,000
Deferred Compensation Liability, Amount Cancelled		$ 2,404,000
Minimum [Member]
Capital Required for Capital Adequacy	2,500,000
Maximum [Member]
Capital Required for Capital Adequacy	50,000,000
PA-1 [Member]
Debt Instrument, Debt Default, Amount					$ 8,137,117
Property, Plant and Equipment of PA1 [Member]
Impairment of Long-Lived Assets Held-for-use	$ 0		$ 1,684,562	$ 3,750,000

Note 2 - Significant Accounti_3

Note 2 - Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total	$ 0	$ 0
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	$ 0
Minimum [Member]
Property, Plant and Equipment, Useful Life	3 years
Maximum [Member]
Property, Plant and Equipment, Useful Life	20 years
Centerpoint [Member]
Noncontrolling Interest, Ownership Percentage by Parent	58.90%

Note 2 - Significant Accounti_4

Note 2 - Significant Accounting Policies - Antidilutive Securities (Details) - shares	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Warrant [Member]
Antidilutive securities (in shares)	16,696,007	12,245,452
Share-based Payment Arrangement, Option [Member]
Antidilutive securities (in shares)	7,411,600	6,827,225
Convertible Debt Securities [Member]
Antidilutive securities (in shares)	8,631,772	7,549,082
Convertible Preferred Stock Antidilutive Securities [Member]
Antidilutive securities (in shares)	18,000	17,000

Note 2 - Significant Accounti_5

Note 2 - Significant Accounting Policies - Earnings Per Share, Basic and Diluted (Details) - shares	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Shares issued – beginning of period (in shares)	28,068,688	25,939,892	24,748,213
Shares held by subsidiaries (Note 7) (in shares)		(704,309)	(704,309)
Shares outstanding – beginning of period (in shares)	27,364,379	25,235,583	24,043,904
Weighted average shares issued during the period (in shares)	1,286,743	395,155
Diluted weighted average shares – end of period (in shares)	26,522,326	24,439,059

Note 3 - Property and Equipme_3

Note 3 - Property and Equipment (Details Textual) - USD ($)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2016	Jun. 30, 2015
Depreciation, Total	$ 1,314	$ 1,744
Property, Plant and Equipment, Net, Ending Balance	2,616	$ 1,448
Property, Plant and Equipment of PA1 [Member]
Impairment of Long-Lived Assets Held-for-use	$ 0		$ 1,684,562	$ 3,750,000
Property, Plant and Equipment, Net, Ending Balance			$ 0

Note 3 - Property and Equipme_4

Note 3 - Property and Equipment - Property and Equipment (Details) - USD ($)	Jun. 30, 2019	Jun. 30, 2018
Machinery and equipment	$ 2,222,670	$ 2,222,670
Buildings and structures	401,470	401,470
Computers and office equipment	173,245	171,613
Total	2,797,385	2,795,753
Less accumulated depreciation	(2,794,769)	(2,794,305)
Net	$ 2,616	$ 1,448

Note 4 - Deferred Compensation

Note 4 - Deferred Compensation (Details Textual) - USD ($)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2019
Deferred Compensation Liability, Current, Total	$ 874,162	$ 421,641
Interest Rate on Deferred Compensation	4.00%
Deferred Compensation Conversion Days	5 days
Deferred Compensation Consecutive Trading Days	10 days
Conversion of Deferred Compensation into Note Payable Affiliate	$ 150,000
Interest Expense, Total	413,057	360,492
Interest Expense on Deferred Compensation Obligation [Member]
Interest Expense, Total	20,983	34,789
Interest Expense, Related Party	$ 15,747	28,166
2019 Convertible Notes [Member] | Convertible Debt [Member]
Debt Instrument, Interest Rate, Stated Percentage	4.00%
Chief Executive Officer [Member]
Deferred Compensation Liability, Current, Total	$ 363,761	219,157
Deferred Compensation, Convertible to Common Stock	$ 300,000
Deferred Compensation, Convertible to Common Stock, Price Per Share	$ 0.75
Deferred Compensation, Converted to Units, Amount		70,000
Accounts Payable, Converted to Units, Amount		65,540
Chief Executive Officer [Member] | 2019 Convertible Notes [Member]
Conversion of Deferred Compensation into Note Payable Affiliate	$ 150,000
Chief Executive Officer [Member] | 2019 Convertible Notes [Member] | Convertible Debt [Member]
Conversion of Deferred Compensation into Note Payable Affiliate	$ 150,000
Debt Instrument, Interest Rate, Stated Percentage	4.00%
President [Member]
Deferred Compensation Liability, Current, Total	$ 133,972	56,892
Deferred Compensation, Convertible to Common Stock	$ 300,000
Deferred Compensation, Convertible to Common Stock, Price Per Share	$ 0.75		$ 0.75
Deferred Compensation, Converted to Units, Amount	$ 87,063
Accounts Payable, Converted to Units, Amount	$ 12,937
Deferred Compensation and Accounts Payable Converted to Units, Shares	200,000
Deferred Compensation and Accounts Payable Converted to Units, Price Per Unit			$ 0.50
Consultants [Member]
Deferred Compensation Liability, Current, Total	$ 302,945	72,108
Interest Rate on Deferred Compensation	3.00%
Deferred Compensation, Converted to Units, Amount		$ 60,178
Individual Employee [Member]
Deferred Compensation Liability, Current, Total	$ 984
Deferred Compensation Shares Issued upon Conversion	1,406
Former Employee [Member]
Deferred Compensation Liability, Current, Total			$ 72,500

Note 5 - Loan Payable (Details

Note 5 - Loan Payable (Details Textual) - USD ($)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Sep. 25, 2014	Jan. 26, 2009
Construction Loan				$ 7,750,000
PA-1 [Member]
Debt Instrument, Debt Default, Amount			$ 8,137,117
Pennvest Loan [Member]
Construction Loan	$ 9,303,270
Accrued Interest and Late Charges Payable	1,549,270
Line of Credit Facility, Maximum Borrowing Capacity	$ 7,754,000
Term Loan, Period for Interest Only Payments	3 years
Term Loan, Period for Amortization of Principal	10 years
Debt Instrument, Annual Principal Payment	$ 4,273,000
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	794,000
Long-term Debt, Maturities, Repayments of Principal in Year Two	819,000
Long-term Debt, Maturities, Repayments of Principal in Year Three	846,000
Long-term Debt, Maturities, Repayments of Principal in Year Four	873,000
Long-term Debt, Maturities, Repayments of Principal in Year Five	149,000
Interest Expense, Debt, Total	$ 238,655	$ 197,494
Pennvest Loan [Member] | Years One Through Five [Member]
Debt Instrument, Interest Rate During Period	2.547%
Pennvest Loan [Member] | Years Six Through Maturity [Member]
Debt Instrument, Interest Rate During Period	3.184%

Note 6 - Convertible Notes Pa_2

Note 6 - Convertible Notes Payable - Affiliates (Details Textual) - USD ($)	9 Months Ended	12 Months Ended
	Mar. 31, 2019	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Convertible Notes Payable, Noncurrent		$ 3,801,168	$ 3,525,216
Interest Expense, Total		413,057	360,492
Conversion of Deferred Compensation into Note Payable Affiliate		$ 150,000
Secured Promissory Note, Consideration for Warrants Expiring on December 31, 2025 [Member]
Financing Receivable, Interest Rate, Stated Percentage		4.00%
Warrants Payable With Secured Promissory Notes [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 0.60
Class of Warrant or Right, Purchase Price of Warrants or Rights, Per Share		$ 0.10
Chief Executive Officer [Member]
Number of Shares Per Unit			1
Number of Warrants Per Unit			1
Class of Warrant or Right, Exercise Price of Warrants or Rights			$ 0.75
Chief Executive Officer [Member] | Secured Promissory Note, Consideration for Warrants Expiring on December 31, 2025 [Member]
Financing Receivable, Interest Rate, Stated Percentage		4.00%
Interest Receivable		$ 10,948
Chief Executive Officer [Member] | Warrants Payable With Secured Promissory Notes [Member]
Class of Warrant or Right, Number Agreed to Sell		3,000,000
President [Member]
Number of Shares Per Unit		1
Number of Warrants Per Unit		1
President [Member] | Secured Promissory Note, Consideration for Warrants Expiring on December 31, 2025 [Member]
Interest Receivable		$ 1,095
President [Member] | Warrants Payable With Secured Promissory Notes [Member]
Class of Warrant or Right, Number Agreed to Sell		300,000
January 2015 Convertible Notes [Member] | Chief Executive Officer [Member] | Warrants Payable With Secured Promissory Notes [Member]
Secured Promissory Notes Payable with Warrants		$ 300,000
January 2015 Convertible Notes [Member] | President [Member] | Warrants Payable With Secured Promissory Notes [Member]
Secured Promissory Notes Payable with Warrants		$ 30,000
January 2015 Convertible Notes [Member] | Convertible Debt [Member]
Debt Instrument, Interest Rate, Stated Percentage					4.00%
Number of Shares Per Unit		1
Number of Warrants Per Unit		0.5
Conversion Price Per Unit		$ 0.50
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 1
Debt Instrument, Convertible, Beneficial Conversion Feature		$ 0
Interest Expense, Total		104,134	$ 104,135
January 2015 Convertible Notes [Member] | Convertible Debt [Member] | Chief Executive Officer [Member]
Convertible Notes Payable, Noncurrent		1,727,923	1,669,342
January 2015 Convertible Notes [Member] | Convertible Debt [Member] | President [Member]
Convertible Notes Payable, Noncurrent		897,287	866,866
January 2015 Convertible Notes [Member] | Convertible Debt [Member] | Executive Vice Chairman [Member]
Convertible Notes Payable, Noncurrent		446,320	431,188
September 2015 Convertible Notes [Member] | Chief Executive Officer [Member]
Convertible Notes Payable, Total		159,963	452,400
September 2015 Convertible Notes [Member] | Executive Vice Chairman [Member]
Convertible Notes Payable, Total		18,879	18,224
September 2015 Convertible Notes [Member] | Shareholder [Member]
Convertible Notes Payable, Total		$ 400,405	87,196
September 2015 Convertible Notes [Member] | Convertible Debt [Member]
Debt Instrument, Interest Rate, Stated Percentage				4.00%
Conversion Price Per Unit		$ 0.60
Debt Instrument, Convertible, Beneficial Conversion Feature		$ 0
Interest Expense, Total		21,428	$ 21,094
Replacement Note Held as Collateral [Member] | Chief Executive Officer [Member]
Convertible Notes Payable, Total		130,000
Convertible Debt, Amount Sold to a Shareholder By an Officer	$ 300,000
2019 Convertible Notes [Member] | Chief Executive Officer [Member]
Conversion of Deferred Compensation into Note Payable Affiliate		$ 150,000
2019 Convertible Notes [Member] | Convertible Debt [Member]
Debt Instrument, Interest Rate, Stated Percentage		4.00%
2019 Convertible Notes [Member] | Convertible Debt [Member] | Chief Executive Officer [Member]
Debt Instrument, Interest Rate, Stated Percentage		4.00%
Number of Shares Per Unit		1
Number of Warrants Per Unit		0.5
Conversion Price Per Unit		$ 0.50
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 0.75
Debt Instrument, Convertible, Beneficial Conversion Feature		$ 0
Convertible Notes Payable, Total		150,391
Conversion of Deferred Compensation into Note Payable Affiliate		$ 150,000

Note 7 - Stockholders' Equity_2

Note 7 - Stockholders' Equity (Details Textual)	Jul. 01, 2014$ / sharesshares	Jun. 03, 2019shares	Jun. 30, 2019USD ($)$ / sharesshares	Jun. 30, 2018USD ($)$ / sharesshares	Jun. 30, 2018USD ($)$ / sharesshares	Aug. 01, 2018USD ($)$ / sharesshares	Jun. 30, 2017shares
Common Stock Voting Rights Votes Per Share			1
Shares Held by Subsidiaries				704,309	704,309		704,309
Stock Issued During Period, Value, Issued for Services | $			$ 93,408		$ 42,583
Proceeds from the Sale of Units | $			896,801		350,496
Adjustments to Additional Paid in Capital, Warrant Issued | $			6,250		48,350
Common Stock Conversions, Inducements | $					10,784
Proceeds from Warrant Exercises | $					67,841
Class of Warrant or Right, Outstanding			16,700,000
Stock Issued During Period, Shares, CommissionsOnSaleOfUnits			1,028
Shares Issued for Warrant Exercise Commissions | $			$ 514
Weighted Average Exercise Price for Outstanding Warrants | $ / shares			$ 0.95
Weighted Average Remaining Contractual Life for Outstanding Warrants			3 years 219 days
Modification of Warrants | $			$ 163,026
Interest Expense Related to the Modification of Warrants | $			25,467
Share-based Payment Arrangement, Noncash Expense, Total | $			$ 721,084		$ 2,129,112
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			655,000		2,647,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value | $			$ 236,100		$ 1,376,250
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount | $			$ 0
Secured Promissory Note, Consideration for Warrants Expiring on December 31, 2025 [Member]
Financing Receivable, Interest Rate, Stated Percentage			4.00%
Expired [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights			70,069
Warrants with Extended Expiration Dates [Member]
Class of Warrant or Right, Outstanding			5,947,864
Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized			30,000,000
Share-based Payment Arrangement, Expense | $			$ 236,100		$ 1,369,350
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			655,000		2,647,500
Stock Option Held by Employees and Consultants [Member]
Share-based Payment Arrangement, Noncash Expense, Total | $					$ 349,656
Subscription Agreement [Member]
Share Price | $ / shares			$ 0.75	$ 1	$ 1
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares			$ 0.50	$ 0.75	$ 0.75
Number of Warrants Per Unit			1	1	1
Warrant Component of Equity Unit, Number of Shares of Restricted Common Stock Called by Each Warrant			0.5	0.5	0.5
Sale of Units, Number Of Units Issued			1,793,606		267,331
Proceeds from the Sale of Units | $			$ 896,801		$ 200,496
Proceeds from Sale of Units, Net of Commissions | $			$ 832,921		$ 185,621
Stock Issued During Period, Shares, New Issues			1,793,606		267,331
Class of Warrant or Right, Issued During Period			896,806		133,666
Warrant Fair Value Price Per Share | $ / shares			$ 0.05	$ 0.05	$ 0.05
Adjustments to Additional Paid in Capital, Warrant Issued | $			$ 31,560		$ 6,152
Adjustments to Additional Paid in Capital, Other | $			$ 865,241		$ 194,344
Subscription Agreement [Member] | Restricted Stock [Member]
Number of Shares Per Unit			1	1	1
Subscription Agreement Two [Member]
Share Price | $ / shares			$ 0.75	$ 0.75	$ 0.75
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares			$ 0.50	$ 0.50	$ 0.50
Number of Warrants Per Unit			1	1	1
Warrant Component of Equity Unit, Number of Shares of Restricted Common Stock Called by Each Warrant			0.5	0.5	0.5
Sale of Units, Number Of Units Issued			1,793,606	300,000
Proceeds from the Sale of Units | $			$ 896,801	$ 150,000
Proceeds from Sale of Units, Net of Commissions | $			$ 832,921
Stock Issued During Period, Shares, New Issues			1,793,606	300,000
Class of Warrant or Right, Issued During Period			896,806	150,000
Warrant Fair Value Price Per Share | $ / shares			$ 0.05	$ 0.05	$ 0.05
Adjustments to Additional Paid in Capital, Warrant Issued | $			$ 31,560	$ 4,991
Adjustments to Additional Paid in Capital, Other | $			$ 865,241	$ 145,009
Subscription Agreement Two [Member] | Restricted Stock [Member]
Number of Shares Per Unit			1	1	1
Subscription Agreement Three [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares				$ 1	$ 1
Stock Issued During Period, Shares, New Issues					3,441
Class of Warrant or Right, Reduced Exercise Price From Previous Exercise Price of Warrants or Rights | $ / shares				0.50	$ 0.50
Common Stock Conversions, Inducements | $					$ 10,784
Class of Warrant or Right, Exercised During Period					135,681
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures, Total					135,681
Proceeds from Warrant Exercises | $					$ 67,841
Minimum [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares			$ 0.60
Minimum [Member] | Expired [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares			0.85
Maximum [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares			2
Maximum [Member] | Expired [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares			$ 3
Maximum [Member] | Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period			10 years
Employees and Consultants [Member]
Stock Issued During Period, Shares, Issued for Services			134,162		57,790
Stock Issued During Period, Value, Issued for Services | $			$ 93,408		$ 42,583
Employees and Consultants [Member] | Minimum [Member]
Share Price | $ / shares			$ 0.50	0.52	$ 0.52
Employees and Consultants [Member] | Maximum [Member]
Share Price | $ / shares			$ 0.74	0.91	0.91
Consultants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares				$ 0.75	$ 0.75
Number of Shares Per Unit				1	1
Number of Warrants Per Unit				1	1
Deferred Compensation, Converted to Units, Amount | $					$ 60,178
Deferred Compensation Converted to Units, Shares					120,356
Deferred Compensation Converted to Units, Price Per Unit | $ / shares				$ 0.50	$ 0.50
Class of Warrant or Right, Outstanding				60,178	60,178
Consultants [Member] | Warrants Related to the Conversion of Deferred Compensation Into Units [Member]
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right				0.5	0.5
Chief Executive Officer [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares				$ 0.75	$ 0.75
Number of Shares Per Unit				1	1
Number of Warrants Per Unit				1	1
Deferred Compensation, Converted to Units, Amount | $					$ 70,000
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right				0.5	0.5
Debt Conversion, Original Debt, Amount | $					$ 18,000
Accounts Payable, Converted to Units, Amount | $					$ 65,540
Deferred Compensation, Loan Payable, and Accounts Payable Converted to Units, Shares					307,080
Deferred Compensation, Loan Payable, and Accounts Payable Converted to Units, Price Per Unit | $ / shares				$ 0.50	$ 0.50
Class of Warrant or Right, Number for Which Expiration Date Extended			1,765,000
Modification of Warrants | $			$ 88,250
Chief Executive Officer [Member] | Secured Promissory Note, Consideration for Warrants Expiring on December 31, 2025 [Member]
Financing Receivable, after Allowance for Credit Loss, Total | $			$ 300,000			$ 300,000
Financing Receivable, Interest Rate, Stated Percentage			4.00%
Interest Receivable | $			$ 10,948
Chief Executive Officer [Member] | Warrants Expiring on December 31, 2025 [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares			$ 0.60			$ 0.60
Class of Warrant or Right, Number of Securities Called by Warrants or Rights			3,000,000			3,000,000
Chief Executive Officer [Member] | Stock Option Held by Employees and Consultants [Member]
Share-based Payment Arrangement, Noncash Expense, Total | $					$ 119,350
President [Member]
Number of Shares Per Unit			1
Number of Warrants Per Unit			1
Deferred Compensation, Converted to Units, Amount | $			$ 87,063
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right			0.5
Accounts Payable, Converted to Units, Amount | $			$ 12,937
Deferred Compensation, Loan Payable, and Accounts Payable Converted to Units, Price Per Unit | $ / shares			$ 0.50
Deferred Compensation and Accounts Payable Converted to Units, Shares			200,000
Class of Warrant or Right, Number for Which Expiration Date Extended			3,104,010
Modification of Warrants | $			$ 68,758
President [Member] | Secured Promissory Note, Consideration for Warrants Expiring on December 31, 2025 [Member]
Interest Receivable | $			1,095
President [Member] | Secured Promissory Note, Consideration for Warrants Expiring on December 31, 2023 [Member]
Financing Receivable, after Allowance for Credit Loss, Total | $			$ 30,000
Financing Receivable, Interest Rate, Stated Percentage			4.00%
Interest Receivable | $			$ 1,095
Debt Instrument, Collateral Amount | $			$ 30,000
President [Member] | Warrants Related to the Conversion of Deferred Compensation and Accounts Payable into Units [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares			$ 0.75
President [Member] | Warrants Expiring on December 31, 2023 [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares			$ 0.60
Class of Warrant or Right, Number of Securities Called by Warrants or Rights			300,000
Execution Bonus as Percentage of Exercised Options and Warrants			75.00%
President [Member] | Share-based Payment Arrangement, Option [Member]
Share-based Payment Arrangement, Plan Modification, Incremental Cost | $			$ 222,300
President [Member] | Stock Option Held by Employees and Consultants [Member]
Share-based Payment Arrangement, Noncash Expense, Total | $					$ 68,000
Consultant [Member]
Class of Warrant or Right, Issued During Period		125,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights			125,000
Class of Warrant or Right, Issued During the Period, Value Issued for Expenses | $			$ 6,250
Consultant [Member] | Minimum [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares			$ 0.74
Consultant [Member] | Maximum [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares			$ 1.20
Centerpoint [Member]
Shares Held by Subsidiaries			704,309
Series B Preferred Stock [Member]
Preferred Stock, Shares Outstanding, Ending Balance	200		200	200	200
Preferred Stock, Par or Stated Value Per Share | $ / shares	$ 0.01		$ 0.01	$ 0.01	$ 0.01
Preferred Stock, Convertible Option Per Share | $ / shares	$ 2
Preferred Stock, Dividend Rate, Percentage	2.50%
Preferred Stock, Redemption Price Per Share | $ / shares	$ 100
Convertible Preferred Stock Redemption Period	3 years
Dividends, Preferred Stock, Total | $			$ 2,000		$ 2,000
Dividends Payable | $			$ 16,000

Note 7 - Stockholders' Equity -

Note 7 - Stockholders' Equity - Black-scholes Valuation Assumptions for Options (Details) - Share-based Payment Arrangement, Option [Member]	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Weighted Average [Member]
Volatility	68.00%	74.00%
Risk-free interest rate	2.34%	2.44%
Expected term (Year)	4 years 36 days	5 years
Minimum [Member]
Volatility	58.00%	68.00%
Risk-free interest rate	1.92%	1.75%
Expected term (Year)	1 year 328 days	3 years
Maximum [Member]
Volatility	76.00%	75.00%
Risk-free interest rate	2.78%	2.64%
Expected term (Year)	4 years 219 days	6 years

Note 7 - Stockholders' Equity_3

Note 7 - Stockholders' Equity - Stock Options Activity (Details) - USD ($)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Outstanding, options (in shares)	6,827,225	4,545,097
Outstanding, weighted-average exercise price (in dollars per share)	$ 1.11	$ 1.42
Outstanding, weighted-average remaining contractual life (Year)	3 years 36 days	3 years 292 days	2 years 328 days
Outstanding, aggregate intrinsic value	$ 20,375		$ 176,575
Granted, options (in shares)	655,000	2,647,500
Granted, weighted-average exercise price (in dollars per share)	$ 0.74	$ 0.76
Exercised, options (in shares)
Exercised, weighted-average exercise price (in dollars per share)
Forfeited, options (in shares)
Forfeited, weighted-average exercise price (in dollars per share)
Expired, options (in shares)	(70,625)	(365,312)
Expired, weighted-average exercise price (in dollars per share)	$ 1.26	$ 2.35
Outstanding, options (in shares)	7,411,600	6,827,225	4,545,097
Outstanding, weighted-average exercise price (in dollars per share)	$ 1.08	$ 1.11	$ 1.42
Exercisable, options (in shares)	7,411,600
Exercisable, weighted-average exercise price (in dollars per share)	$ 1.08
Exercisable, weighted-average remaining contractual life (Year)	3 years 36 days
Exercisable, aggregate intrinsic value	$ 20,375

Note 7 - Stockholders' Equity_4

Note 7 - Stockholders' Equity - Nonvested Share Activity (Details) - $ / shares	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Nonvested (in shares)
Nonvested, weighted-average grant-date fair value (in dollars per share)
Granted, options (in shares)	655,000	2,647,500
Granted, weighted-average grant-date fair value (in dollars per share)	$ 0.36
Vested (in shares)	(655,000)
Vested, weighted-average grant-date fair value (in dollars per share)	$ 0.36
Nonvested (in shares)
Nonvested, weighted-average grant-date fair value (in dollars per share)

Note 7 - Stockholders' Equity_5

Note 7 - Stockholders' Equity - Allocation of Recognized Period Costs (Details) - USD ($)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Share-based Payment Arrangement, Option [Member]
Allocated Share-based Compensation Expense	$ 236,100	$ 1,369,350
General and Administrative Expense [Member]
Allocated Share-based Compensation Expense	535,943	1,198,575
Change in fair value from modification of warrant terms	118,233	163,956
General and Administrative Expense [Member] | Stock Bonus [Member]
Allocated Share-based Compensation Expense		8,723
General and Administrative Expense [Member] | Share-based Payment Arrangement, Option [Member]
Allocated Share-based Compensation Expense	206,525	782,135
Change in fair value from modification of option terms	211,185	243,761
Research and Development Expense [Member]
Allocated Share-based Compensation Expense	85,483	841,104
Change in fair value from modification of warrant terms	44,793	132,896
Research and Development Expense [Member] | Stock Bonus [Member]
Allocated Share-based Compensation Expense		15,098
Research and Development Expense [Member] | Share-based Payment Arrangement, Option [Member]
Allocated Share-based Compensation Expense	29,575	587,215
Change in fair value from modification of option terms	$ 11,115	$ 105,895

Note 8 - Commitments and Cont_2

Note 8 - Commitments and Contingencies (Details Textual) - USD ($)

Oct. 10, 2016

Sep. 25, 2014

May 15, 2013

Feb. 28, 2018

Jun. 30, 2019

Dec. 30, 2023

Aug. 01, 2018

Jun. 30, 2018

Jun. 30, 2017

Apr. 27, 2017

Oct. 31, 2016

Jun. 30, 2014

Extension of Exercise Period Annual Payment per Option or Warrant

$ 0.05

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance

7,411,600

6,827,225

4,545,097

Class of Warrant or Right, Outstanding

16,700,000

Pennvest Loan [Member]

Loss Contingency, Damages Sought, Value

$ 8,137,117

Minimum [Member]

Class of Warrant or Right, Exercise Price of Warrants or Rights

$ 0.60

Maximum [Member]

Class of Warrant or Right, Exercise Price of Warrants or Rights

$ 2

Exercise Bonus [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance

7,239,600

Class of Warrant or Right, Outstanding

12,032,095

Exercise Bonus [Member] | Minimum [Member]

Execution Bonus as Percentage of Exercised Options and Warrants

50.00%

Exercise Bonus [Member] | Maximum [Member]

Execution Bonus as Percentage of Exercised Options and Warrants

90.00%

President [Member]

Monthly Officers' Cash Compensation

$ 18,000

President [Member] | Secured Promissory Note, Consideration for Warrants Expiring on December 31, 2025 [Member]

Interest Receivable

$ 1,095

President [Member] | FY2016 Extension Agreement [Member] | Extension Bonus [Member]

Deferred Compensation, Maximum Convertible Amount

$ 125,000

$ 300,000

$ 125,000

Deferred Compensation, Stock Conversion, Price Per Share

$ 0.75

$ 0.75

$ 0.75

President [Member] | February 2018 Extension Agreement [Member] | Extension Bonus [Member]

Annual Salary

$ 372,000

Monthly Compensation, Life Insurance

$ 2,000

Chief Executive Officer [Member]

Monthly Officers' Cash Compensation

$ 31,000

Class of Warrant or Right, Exercise Price of Warrants or Rights

$ 0.75

Chief Executive Officer [Member] | Warrants Expiring on December 31, 2025 [Member]

Class of Warrant or Right, Number of Securities Called by Warrants or Rights

3,000,000

3,000,000

Class of Warrant or Right, Exercise Price of Warrants or Rights

$ 0.60

$ 0.60

Chief Executive Officer [Member] | Secured Promissory Note, Consideration for Warrants Expiring on December 31, 2025 [Member]

Financing Receivable, after Allowance for Credit Loss, Total

$ 300,000

$ 300,000

Note Receivable, Collateral

$ 300,000

Interest Receivable

$ 10,948

Chief Executive Officer [Member] | Stock Bonus [Member]

Execution Bonus as Percentage of Exercised Options and Warrants

50.00%

Chief Executive Officer [Member] | FY2016 Extension Agreement [Member] | Extension Bonus [Member]

Deferred Compensation, Maximum Convertible Amount

$ 300,000

Deferred Compensation, Stock Conversion, Price Per Share

$ 0.75

CEO and President [Member] | Exercise Bonus [Member]

ContingentStockBonusPercentageThresholdForIssuance

50.00%

Extension of Exercise Period

5 years

Extension of Exercise Period Annual Payment per Option or Warrant

$ 0.01

Executive Vice Chairman and Other Board Member [Member] | Exercise Bonus [Member]

Execution Bonus as Percentage of Exercised Options and Warrants

50.00%

Two Former Employees [Member] | Exercise Bonus [Member]

Execution Bonus as Percentage of Exercised Options and Warrants

50.00%

CEO, President, and Executive Vice Chairman [Member]

Execution Bonus, Annual Payment Per Option or Warrant

$ 0.01

CEO, President, and Executive Vice Chairman [Member] | Exercise Bonus [Member]

Execution Bonus as Percentage of Exercised Options and Warrants

75.00%

50.00%

Note 9 - Related Party Transa_2

Note 9 - Related Party Transactions (Details Textual) - USD ($)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Stock Issued During Period, Value, Issued for Services	$ 93,408	$ 42,583
Coalition for Affordable Bay Solutions [Member]
Related Party Transaction, Expenses from Transactions with Related Party			$ 165,650
Related Party Transaction, Contributions			$ 68,900
Stock Issued During Period, Shares, Issued for Services	16,000		129,000
Stock Issued During Period, Value, Issued for Services	$ 8,000		$ 96,750
Related Party Transaction, Reimbursements	30,000	$ 41,000
Related Party Transaction, Amounts of Transaction	$ 37,220

Note 10 - Income Taxes (Details

Note 10 - Income Taxes (Details Textual)	12 Months Ended
	Jun. 30, 2019USD ($)
Operating Loss Carryforwards, Total	$ 50,914,000
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent	100.00%

Note 10 - Income Taxes - Reconc

Note 10 - Income Taxes - Reconciliation Schedule of Federal Income Tax Benefits (Details) - USD ($)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Expected income tax benefit at statutory rate	$ (557,000)	$ (1,025,000)
State taxes, net of federal benefit	(97,000)	(110,000)
Deferred compensation		790,000
Permanent differences and other	2,000	3,000
Expiration of net operating allowances	850,000	1,201,000
Tax Cut and Jobs Act		(275,000)
Change in valuation allowance	(198,000)	(584,000)
Income tax benefit

Note 10 - Income Taxes - Table

Note 10 - Income Taxes - Table of Estimated Deferred Tax Assets and Liabilities (Details) - USD ($)	Jun. 30, 2019	Jun. 30, 2018
NOL Carryforwards (Federal and State)	$ 11,864,000	$ 12,394,000
Stock-based compensation	4,424,000	4,244,000
Impairment	1,340,000	1,340,000
Deferred compensation	1,027,000	875,000
Gross deferred tax assets	18,655,000	18,853,000
Valuation allowance	(18,655,000)	(18,853,000)
Net deferred tax assets

Note 11 - 401(k) Plan (Details

Note 11 - 401(k) Plan (Details Textual)	12 Months Ended
	Jun. 30, 2019
Defined Contribution Pension and Other Postretirement Plans Minimum Age	21 years

Note 12 - Subsequent Events (De

Note 12 - Subsequent Events (Details Textual) - USD ($)	3 Months Ended	12 Months Ended
	Sep. 23, 2019	Jun. 30, 2019	Jun. 30, 2018
Stock Issued During Period, Value, Issued for Services		$ 93,408	$ 42,583
Sale of Units, Value		896,801	350,496
Proceeds from Related Party Debt			$ 30,500
Chief Executive Officer [Member]
Number of Shares Per Unit			1
Number of Warrants Per Unit			1
Class of Warrant or Right, Exercise Price of Warrants or Rights			$ 0.75
President [Member]
Number of Shares Per Unit		1
Number of Warrants Per Unit		1
Subsequent Event [Member]
Stock Issued During Period, Shares, Issued for Services	29,000
Stock Issued During Period, Value, Issued for Services	$ 16,350
Subsequent Event [Member] | Chief Executive Officer [Member]
Proceeds from Related Party Debt	20,000
Subsequent Event [Member] | President [Member]
Proceeds from Related Party Debt	$ 15,000
Subsequent Event [Member] | Sale of Units, One [Member]
Sale of Units, Number Of Units Issued	18,000
Shares Issued, Price Per Share	$ 0.50
Sale of Units, Value	$ 9,000
Number of Shares Per Unit	1
Number of Warrants Per Unit	0.5
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 0.75
Subsequent Event [Member] | Sale of Units, Two [Member]
Sale of Units, Number Of Units Issued	205,914
Shares Issued, Price Per Share	$ 0.50
Sale of Units, Value	$ 102,957
Number of Shares Per Unit	1
Number of Warrants Per Unit	0.5
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 0.75