CONSOLIDATED BALANCE SHEETS - (UNAUDITED) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
ASSETS
Accounts receivable, allowance for doubtful accounts	$ 40	$ 20
Shareholders' equity:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	99,000,000	99,000,000
Common stock, shares issued (in shares)	2,773,972	2,768,972
Common stock, shares outstanding (in shares)	2,653,913	2,647,735
Treasury stock, shares (in shares)	120,059	121,237