Consolidated Balance Sheets (Parenthetical) (Unaudited) - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Consolidated Balance Sheets [Parenthetical] [Abstract]
Allowances for accounts receivable (in dollars)	$ 50,000	$ 70,000
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	60,000,000	60,000,000
Common stock, shares issued	29,061,883	29,061,883
Common stock, shares outstanding	29,061,883	29,061,883