Significant Accounting Policies (Basic and Diluted Weighted Average Common Shares Outstanding) (Details) - shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Basic shares outstanding	64,052,777	59,443,207
Incremental shares from assumed conversion of warrants	119,499	393,363
Diluted shares outstanding	64,172,276	59,836,570