Computation of Earnings Per Share (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Basic and diluted earnings per share [Abstract]
Net (loss)/income	$ (4,483,700)	$ 384,500	$ (4,247,600)	$ 1,381,700
Weighted average shares outstanding for the period (in shares)	1,416,699	1,416,699	1,416,699	1,460,655
Basic (loss)/earnings per share (in dollars per share)	$ (3.16)	$ 0.27	$ (3.00)	$ 0.95
Diluted (loss)/earnings per share (in dollars per share)	$ (3.16)	$ 0.27	$ (3.00)	$ 0.95