UNAUDITED CONSOLIDATED CONDENSED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Accounts receivable, allowances for bad debts and customer credits	$ 711	$ 405
Stockholders' equity:
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, authorized (in shares)	11,445,187	11,445,187
Preferred stock, outstanding (in shares)
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized (in shares)	55,000,000	55,000,000
Common stock, issued (in shares)	9,028,733	8,909,737
Common stock, outstanding (in shares)	9,028,733	8,909,737