Share Repurchase Program (Details) (USD $)	0 Months Ended	3 Months Ended
Jul. 26, 2012	Mar. 31, 2013 Maximum [Member]
Share Repurchase Program (Textual) [Abstract]
Stock Repurchase Program, Additional Authorized Amount	$ 30,000,000
Share repurchase program		$ 19,100,000

The additional amount authorized by an entity's Board of Directors under a stock repurchase plan.

No definition available.

Name:	mcrl_StockRepurchaseProgramAdditionalAuthorizedAmount
Namespace Prefix:	mcrl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration