CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Sep. 30, 2012
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts and sales returns	$ 232	$ 212
Unamortized debt discount	$ 938	$ 1,017
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	6,474,794	6,372,465
Common stock, shares outstanding	6,460,548	6,358,219
Treasury stock, shares	14,246	14,246