CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current Assets
Accounts receivable, allowance for doubtful accounts	$ 0	$ 0
Stockholders' Equity
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, authorized (in shares)	2,000,000	2,000,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, authorized (in shares)	50,000,000	50,000,000
Common stock, issued (in shares)	12,156,760	11,717,310
Common stock, outstanding (in shares)	12,116,833	11,677,383
Treasury stock, at cost (in shares)	24,371	24,371