Summary of Significant Accounting Policies (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Assets:
Cash and money market accounts	$ 6,505,141	$ 6,293,293
Bank certificates of deposit	493,821	2,480,753
Liabilities:
Interest rate swaps		(58,526)
Total, net	6,998,962	8,715,520
Fair Value, Inputs, Level 1 [Member]
Assets:
Cash and money market accounts	6,505,141	6,293,293
Bank certificates of deposit
Liabilities:
Interest rate swaps
Total, net	6,505,141	6,293,293
Fair Value, Inputs, Level 2 [Member]
Assets:
Cash and money market accounts
Bank certificates of deposit	493,821	2,480,753
Liabilities:
Interest rate swaps		(58,526)
Total, net	493,821	2,422,227
Fair Value, Inputs, Level 3 [Member]
Assets:
Cash and money market accounts
Bank certificates of deposit
Liabilities:
Interest rate swaps
Total, net