XML 102 R69.htm IDEA: XBRL DOCUMENT v3.22.1
Schedule II - Valuation and Qualifying Accounts - Bad Debt Expense and Reserves for Obsolete Inventory (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Bad debt expense $ (28,499) $ 320,270
SEC Schedule, 12-09, Reserve, Inventory [Member]    
Bad debt expense (28,499) 320,270
Reserve for obsolete inventory $ 162,651 $ 266,021