|12 Months Ended|
Dec. 31, 2018
|Debt Disclosure [Abstract]|
|Notes Payable Disclosure [Text Block]||
6. NOTES PAYABLE
During the three months ended March 31, 2017, the two loans with initial principal amounts totaling $450,000 from the Wisconsin Economic Development Corporation, dated September 15, 2010, were paid in full.
The entire disclosure for long-term debt.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef