Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
ASSETS
Allowance for doubtful accounts, net	$ 44	$ 44
Stockholders equity:
Preferred stock, par value	$ 1.00	$ 1.00
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	13,519,323	13,508,815
Common stock, outstanding shares	13,519,323	13,508,815