CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data	Jun. 30, 2011	Dec. 31, 2010
Condensed Balance Sheets
Accounts receivable, allowance for doubtful accounts receivable	$ 94	$ 242
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	13,057,107	12,860,759
Common stock, shares outstanding	13,057,107	12,860,759