Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)	Jun. 30, 2016	Dec. 31, 2015
Allowance for accounts receivable	$ 30,000	$ 30,200
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	3,000,000	3,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares, issued	14,773,083	14,773,083
Common stock, shares, outstanding	12,919,110	12,919,110