Accounts Receivable (Details 2) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance For Doubtful Accounts Receivable [Line Items]
Beginning balance	$ (162,000)	$ (234,000)
Provision for bad debts on trade receivables	(359,000)	(6,000)	$ (14,000)
Accounts receivable write offs	88,000	70,000	11,000
Ending balance	(554,000)	(162,000)	$ (234,000)
Trade Accounts Receivable
Allowance For Doubtful Accounts Receivable [Line Items]
Provision for bad debts on trade receivables	(359,000)	(6,000)
Other Receivable
Allowance For Doubtful Accounts Receivable [Line Items]
Provision for bad debts on trade receivables	$ (121,000)	$ (8,000)