Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2018	Dec. 31, 2017
Preferred Stock
Preferred stock, shares authorized (shares)	20,000,000	20,000,000
Preferred stock, liquidation preference (shares)	0.001	0.001
Preferred stock, par value (USD per share)	$ 0.01	$ 0.01
Preferred stock, shares designated (shares)	825,000	825,000
Preferred stock, shares issued (shares)	10,000	10,000
Preferred stock, shares outstanding (shares)	10,000	10,000
Common Stock
Common stock, par value (USD per share)	$ 0.001	$ 0.001
Common stock, shares authorized (shares)	500,000,000	500,000,000
Common stock, shares, issued (shares)	9,865,735	9,483,911
Common stock, shares, outstanding (shares)	9,865,735	9,483,911
Treasury Stock
Treasury stock (shares)	11,080	11,080