Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) - $ / shares	Mar. 31, 2018	Dec. 31, 2017
Common stock, par value	$ 0.025	$ 0.025
Common stock, shares authorized	75,000,000	75,000,000
Common stock, shares issued	17,184,641	14,658,979
Common stock, shares outstanding	17,131,141	14,647,749
Treasury stock, shares	11,500	11,500
Preferred Series A stock
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	51	51
Preferred stock, shares issued	51	51
Preferred stock, shares outstanding	51	51
Preferred Series B stock
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	71,210	71,210
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Preferred Series C stock
Preferred stock, stated value	$ 100	$ 100
Preferred Series D stock
Preferred stock, stated value	100	100
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	141,000	141,000
Preferred stock, shares issued	106,950	141,000
Preferred stock, shares outstanding	106,950	141,000
Preferred Series E stock
Preferred stock, stated value	$ 100	$ 100
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	300,000	300,000
Preferred stock, shares issued	223,950	300,000
Preferred stock, shares outstanding	223,950	300,000
Preferred Series F stock
Preferred stock, stated value	$ 1,000	$ 1,000
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	2,500	2,500
Preferred stock, shares issued	2,500	0
Preferred stock, shares outstanding	2,500	0