Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Stockholders' equity:
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	1,000,000	1,000,000
Common stock, par value	$ 0.004	$ 0.004
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	19,567,140	19,324,549
Treasury stock, shares	86,000	86,000
Series A Convertible Preferred Stock [Member]
Stockholders' equity:
Preferred stock, shares issued	95,500
Preferred stock, shares outstanding	95,500
Preferred stock, liquidation value	$ 12,044,296
Series A Exchangeable Preferred Stock [Member]
Stockholders' equity:
Preferred stock, shares issued	54,500
Preferred stock, shares outstanding	54,500
Preferred stock, liquidation value	$ 6,873,447