Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2017	Dec. 31, 2016
Common stock, par value	$ 0.025	$ 0.025
Common stock, shares authorized	75,000,000	75,000,000
Common stock, shares issued	14,658,979	1,712,471
Common stock, shares outstanding	6,932,744	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	71,210
Preferred stock, shares outstanding	0	71,210
Preferred Series C stock
Preferred stock redeemable, cumulative, stated value		$ 100
Preferred stock redeemable, cumulative, par value		$ 0.001
Preferred stock redeemable, cumulative, authorized		67,361
Preferred stock redeemable, cumulative, shares issued		35,750
Preferred stock redeemable, cumulative, shares outstanding		0
Preferred Series D Stock
Preferred stock, stated value	$ 100
Preferred stock, par value	$ 0.001
Preferred stock, shares authorized	67,361
Preferred stock, shares issued	35,750
Preferred stock, shares outstanding	0
Preferred Series E stock
Preferred stock, stated value	$ 100
Preferred stock, par value	$ 0.001
Preferred stock, shares authorized	300,000
Preferred stock, shares issued	300,000
Preferred stock, shares outstanding	0