Stock-based Compensation (Details 1)	12 Months Ended
	Dec. 31, 2020 $ / shares shares
Nonvested Shares
Nonvested restricted stock outstanding, beginning balance | shares	3,540
Granted in 2020 | shares	0
Vested in 2020 | shares	(1,180)
Nonvested restricted stock outstanding, Ending balance | shares	2,360
Weighted Average Award Date Fair Value Per Share
Weighted Average Award Date Fair Value Per Share, beginning balance | $ / shares	$ 445.47
Weighted Average Award Date Fair Value Per Share, Granted in 2020 | $ / shares	0
Weighted Average Award Date Fair Value Per Share, Vested in 2020 | $ / shares	445.47
Weighted Average Award Date Fair Value Per Share, Ending balance | $ / shares	$ 445.47