XML 32 R18.htm IDEA: XBRL DOCUMENT v2.3.0.15

PROFIT SHARING PLAN:	12 Months Ended
	Sep. 30, 2011
PROFIT SHARING PLAN:
PROFIT SHARING PLAN:	11. PROFIT SHARING PLAN: The Company sponsors a profit sharing plan (i.e. a section 401(k) plan) covering substantially all employees. The plan allows employees to make voluntary contributions up to 100% of their compensation, subject to Internal Revenue Service limits. The Company matches 50% of the first 4% contributed and 100% of the next 2% contributed for a maximum match of 4% of employee compensation. The Company made matching contributions to the profit sharing plan of approximately $0.6 million (net of employee forfeitures) for fiscal 2011 and fiscal 2010.

X

- Details

Name:	dit_ProfitSharingPlanDisclosureAbstract
Namespace Prefix:	dit
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents entire disclosure for Profit sharing plan.

+ Details

Name:	dit_ProfitSharingPlanDisclosureTextBlock
Namespace Prefix:	dit
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration