Earnings (loss) per Share (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Numerator:
Net income (loss)	$ (1,224,667)	$ 724,569
Denominator:
Denominator for basic earnings (loss) per share - weighted average shares	12,870,000	12,666,000
Dilutive effect of employee stock options and other warrants	0	145,000
Denominator for diluted earnings (loss) per share - adjusted weighted average shares	12,870,000	12,811,000
Basic earnings (loss) per share	$ (0.10)	$ 0.06
Diluted earnings (loss) per share	$ (0.10)	$ 0.06