Summary of Significant Accounting Policies (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Jul. 31, 2016	Jul. 31, 2014
Summary of Significant Accounting Policies (Details) [Line Items]
Cash, FDIC Insured Amount	$ 250,000
Concentration Risk, Percentage	10.00%	12.50%
Goodwill	$ 744,000	$ 744,000
Certificates of Deposit, at Carrying Value			$ 400,000	$ 212,000
Shipping, Handling and Transportation Costs	610,000	689,000
Advertising Expense	147,000	$ 437,000
Operating Leases, Future Minimum Payments Receivable	4,398,000
Operating Leases, Future Minimum Payments Receivable, Current	1,678,000
Operating Leases, Future Minimum Payments Receivable, in Two Years	1,074,000
Operating Leases, Future Minimum Payments Receivable, in Three Years	944,000
Operating Leases, Future Minimum Payments Receivable, in Four Years	395,000
Operating Leases, Future Minimum Payments Receivable, in Five Years	218,000
Operating Leases, Future Minimum Payments Receivable, Thereafter	89,000
Accounts Receivable, Gross	76,000
Digital Display Sales [Member]
Summary of Significant Accounting Policies (Details) [Line Items]
Goodwill	$ 744,000