Fair Value Measurements - Summary of equity investment within fair value hierarchy utilized to measure fair value on recurring basis (Details) - USD ($)	Dec. 31, 2015	Dec. 28, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity investment in Paradise on Wings	$ 570,828	$ 818,545
Recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity investment in Paradise on Wings	0	0
Recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity investment in Paradise on Wings	570,828	818,545
Recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity investment in Paradise on Wings	$ 0	$ 0