Acquisitions of Selected Assets of Manatee Works, Inc. Contingent Consideration (Details)	3 Months Ended	9 Months Ended
	Oct. 04, 2015 USD ($)	Oct. 04, 2015 USD ($)
Business Combinations [Abstract]
Cash paid for acquisition	$ 1,023,000
contingent consideration payments, maximum years		3 years
Contingent Consideration, Range Low	0	$ 0
Contingent Consideration Arrangements, Range High	5,000,000	5,000,000
Business Combination, Liabilities Arising from Contingencies, Amount Recognized	3,790,000	3,790,000
Acquisition Purchase Price, total		4,813,000
Business Combination, Contingent Consideration, liability, Current	938,000	938,000
Business Combination, Contingent Consideration, Liability, Noncurrent	$ 2,852,000	$ 2,852,000
Developer network amortization, years		5 years
completed technology amortization, years		5 years