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Fair Value Measurement (Detail)
 12 Months Ended 3 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2013
USD ($)
Dec. 31, 2012
USD ($)
Dec. 31, 2011
USD ($)
Dec. 31, 2012
Note Receivable From Bakers [Member]
USD ($)
Dec. 31, 2013
Note Receivable From Bakers [Member]
USD ($)
Aug. 26, 2010
Note Receivable From Bakers [Member]
Dec. 31, 2013
SM Canada [Member]
USD ($)
Mar. 31, 2012
SM Canada [Member]
USD ($)
Mar. 31, 2012
SM Canada [Member]
CAD
Dec. 31, 2013
Cejon Acquisition [Member]
USD ($)
Dec. 31, 2012
Cejon Acquisition [Member]
USD ($)
Dec. 31, 2013
Big Buddha Acquisition [Member]
USD ($)
Proceeds from (Payments for) Other Financing Activities             $ 4,529     $ 5,139 $ 5,000 $ 1,813
Unregistered Shares Of Common Stock Acquired           1,844,860            
Financing Receivable, Gross       4,092,000 4,148,000     3,171,000 3,107,000      
Other than Temporary Impairment Losses, Investments       996,000                
Tangible Asset Impairment Charges       4,148,000                
Provision for Doubtful Accounts 0 4,218,000 2,961,000                  
Financing Receivable, Allowance for Credit Losses, Recovery $ 1,522,000