BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
BALANCE SHEETS
Accounts receivable, allowance (in dollars)	$ 120	$ 125
Deferred debt issuance costs, accumulated amortization (in dollars)	$ 16	$ 11
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	8,026,309	7,642,475
Common stock, shares outstanding	8,026,309	7,642,475