The number of warrants cancelled during the period.

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Value of exercised derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

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The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Dividend or interest rate associated with the financial instrument issued in exchange for the original debt being converted in a noncash or part noncash transaction. Noncash are transactions that affect recognized assets or liabilities but that do not result in cash receipts or cash payments. Part noncash refers to that portion of the transaction not resulting in cash receipts or cash payments.

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The price per share of the conversion feature embedded in the debt instrument.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Carrying amount as of the balance sheet date of obligations due all related parties.

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Gross amount of debt extinguished.

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Amount of interest expense incurred on a debt or other obligation to related party.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The effective interest rate at the end of the reporting period.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The amount for notes payable (written promise to pay), due to related parties.

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The cash outflow for a borrowing supported by a written promise to pay an obligation.

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Note 11 - Related Party Transactions (Details Textual) - USD ($)						1 Months Ended	12 Months Ended
	Dec. 27, 2018	Aug. 31, 2017	Apr. 07, 2017	Nov. 19, 2015	Dec. 16, 2008	Aug. 29, 2008	Dec. 31, 2018	Dec. 31, 2017	Jun. 30, 2016	Feb. 29, 2016	Feb. 03, 2015	Jan. 31, 2015	Dec. 31, 2013	Dec. 18, 2013	Mar. 18, 2013	Feb. 22, 2013	Oct. 16, 2012	Sep. 30, 2009	Jun. 30, 2008	Feb. 29, 2008
Convertible Notes Payable, Total							$ 5,970,000	$ 6,170,000
Debt Instrument, Interest Rate, Stated Percentage															2.00%
Repayments of Notes Payable							345,000	915,000
Warrants and Rights Exercised							400,000	0
Line of Credit Facility, Maximum Borrowing Capacity											$ 5,000,000			$ 4,000,000	$ 2,000,000
Long-term Line of Credit, Total							$ 2,900,000
Line of Credit Facility, Interest Rate at Period End							4.50%
Interest Expense, Related Party							$ 935,839	$ 947,688
Class of Warrant or Right, Exercised During Period							(4,000,000)	0
The Northern Trust Company [Member]
Line of Credit Facility, Maximum Borrowing Capacity											$ 5,000,000			$ 4,000,000	$ 2,000,000
Line of Credit Facility, Interest Rate During Period			2.00%
Long-term Line of Credit, Total							$ 2,900,000
Line of Credit Facility, Interest Rate at Period End							4.50%
Director Mr. Wit [Member]
Class of Warrant or Right Cancelled During the Period				1,900,000
Interest Expense, Related Party Approximately Monthly Amount			$ 9,500
Chief Executive Officer [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	2,000,000									1,800,000
Debt Instrument, Interest Rate, Stated Percentage										12.00%
Notes Payable, Related Parties										$ 450,000
Extinguishment of Debt, Amount	$ 400,000
Repayments of Notes Payable		$ 50,000
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 0.25									$ 0.25
Interest Payable										$ 450,000
Warrants and Rights Exercised	$ 400,000
Class of Warrant or Right, Exercised During Period	1,600,000
Convertible Debentures [Member] \| Director Mr. Wit [Member]
Due to Related Parties, Total							$ 5,770,000
Convertible Notes Payable, Total																			$ 510,000
Debt Conversion, Converted Instrument, Amount						$ 510,000
Convertible Debenture Initiated In June 2008 [Member] \| Director Mr. Wit [Member]
Convertible Notes Payable, Total						$ 1,260,000			$ 1,770,000			$ 1,770,000				$ 1,770,000		$ 1,770,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights						3,540,000
Debt Instrument, Interest Rate, Stated Percentage						10.00%
Debt Instrument, Convertible, Conversion Price						$ 0.50
Convertible Debenture Initiated In February 2008 [Member] \| Director Mr. Wit [Member]
Convertible Notes Payable, Total												4,475,000				4,475,000	$ 125,000	$ 4,350,000		$ 4,200,000
Debt Conversion, Converted Instrument, Amount					$ 4,350,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights				1,680,000	8,700,000												250,000
Debt Instrument, Convertible, Conversion Price					$ 0.50
Notes Payable, Related Parties																				$ 150,000
Debt Conversion, Converted Instrument, Rate					12.00%
Extinguishment of Debt, Amount				$ 420,000
Class of Warrant or Right Cancelled During the Period				1,680,000
Convertible Debenture Initiated In February 2008 [Member] \| Director Mr. Wit [Member] \| Extended Maturity Debentures [Member]
Convertible Notes Payable, Total									$ 4,055,000
Convertible Debentures Issued December 2008 [Member]
Convertible Notes Payable, Total					$ 5,075,000
Convertible Debentures Issued December 2008 [Member] \| Extended Maturity Debentures [Member]
Convertible Notes Payable, Total													$ 360,000
Convertible Debentures Issued December 2008 [Member] \| Director Mr. Wit [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights				1,680,000
Extinguishment of Debt, Amount				$ 420,000
Class of Warrant or Right Cancelled During the Period				1,680,000
Convertible Debentures Issued December 2008 [Member] \| Director Mr. Wit [Member] \| Extended Maturity Debentures [Member]
Convertible Notes Payable, Total												$ 4,475,000
Convertible Debentures Issued December 2008 [Member] \| Chief Executive Officer and Director Mr. Wit [Member]
Repayments of Notes Payable		$ 55,000
Convertible Debentures Issued December 2008 [Member] \| Chief Executive Officer [Member]
Convertible Notes Payable, Total																$ 4,475,000