Net Loss Per Common Share (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Basic income per share
Net income	$ 1,691,307	$ 1,152,056	$ 2,020,455	$ 872,544
Weighted average shares outstanding (in shares)	4,924,366	4,893,548	4,924,366	4,892,977
Basic income (loss) per share (in dollars per share)	$ 0.34	$ 0.24	$ 0.41	$ 0.18
Diluted income per share
Dilutive effect of stock options (in shares)	40,599	52,197	34,107	51,008
Total weighted average shares outstanding (in shares)	4,964,965	4,945,745	4,958,473	4,943,985
Diluted income (loss) per share (in dollars per share)	$ 0.34	$ 0.23	$ 0.41	$ 0.18