XML 55 R42.htm IDEA: XBRL DOCUMENT v3.21.1
Accounting Policies and Nature of Operations (Details 2) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Number of shares, granted unvested 0 0
Unrecognized expense $ 0 $ 545
Robert Burnside | January 23, 2014    
Price of stock at grant date $ 2.18 $ 2.18
Number of shares, granted unvested 0 250
Unrecognized expense $ 0 $ 545