Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Jun. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Preferred stock, par value (in usd per share)	$ 0.001	$ 0.001
Preferred sock, authorized (in shares)	2,000,000	2,000,000
Preferred stock, issued (in shares)	597,139	597,139
Preferred stock, outstanding (in shares)	597,139	597,139
Common stock, par value (in usd per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	7,500,000	7,500,000
Common stock, shares issued (in shares)	2,466,219	2,466,219
Common stock, shares outstanding (in shares)	2,466,219	2,466,219