CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance for doubtful accounts receivable	$ 99	$ 97
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, par value	$ 0.10	$ 0.10
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, shares authorized	50,000,000	50,000,000
Common stock, par value	$ 0.10	$ 0.10
Common stock, shares issued	13,010,440	13,035,440
Common stock, shares outstanding	13,010,440	13,035,440