CONSOLIDATED BALANCE SHEETS (Parenthetical) (in thousands, except per share data) (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
CURRENT ASSETS:
Trade accounts receivable, net of allowance	$ 92	$ 89
STOCKHOLDERS' EQUITY
Preferred stock, authorized shares (including Series A)	5,000,000	5,000,000
Preferred stock, issued shares	0	0
Preferred stock, outstanding shares	0	0
Common stock, authorized shares	30,000,000	30,000,000
Common stock, issued shares	7,769,954	7,741,686
Common stock, outstanding shares	7,769,954	7,741,686