Investments (Tables)

12 Months Ended

Dec. 29, 2012

Investments

Summary of marketable securities classified as available-for-sale securities

	December 29, 2012				December 31, 2011
	Cost		Fair Value		Cost		Fair Value
Equity securities	$	92,400	$	85,900	$	1,015,800	$	1,043,800

Schedule of the Company's unrealized gains and losses for marketable securities classified as available-for-sale securities in accumulated other comprehensive income

	Year Ended
	December 29, 2012			December 31, 2011
Unrealized gains	$	—		$	32,900
Unrealized losses	(6,500		)	(4,900		)
Net unrealized gains / (losses)	$	(6,500	)	$	28,000

Schedule of the Company's realized gains and losses recognized on sales of available-for-sale marketable securities

	Year Ended
	December 29, 2012			December 31, 2011
Realized gains	$	52,500		$	58,600
Realized losses	(31,300		)	(600		)
Net realized gains / (losses)	$	21,200		$	58,000

Schedule of the Company's long-term investments, net of allowance

	December 29, 2012		December 31, 2011
Tomsten, Inc.	$	—	$	2,492,900
BridgeFunds, LLC	—		1,324,500
	$	—	$	3,817,400