Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
ASSETS
Allowance for doubtful accounts, net	$ 39	$ 39
Stockholders equity:
Preferred stock, par value	$ 1	$ 1
Preferred stock, authorized shares	1,000,000	1,000,000
Preferred stock, issued shares	0	0
Preferred stock, outstanding shares	0	0
Common stock, par value	$ 0.60	$ 0.60
Common stock, authorized shares	20,000,000	20,000,000
Common stock, issued shares	13,580,471	13,545,482
Common stock, outstanding shares	13,580,471	13,545,482