Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Federal statutory rate	35.00%	35.00%	35.00%
Increase in valuation allowance	$ 378,000	$ 240,000	$ 138,000
U.S federal net operating loss carryforwards	$ 32,700,000	38,700,000
Period to utilize the net operating loss carryforwards	11 years
NOL carryforward used in period	$ 6,000,000	13,500,000
Foreign operating loss carryforwards	0	53,000
Unrecognized tax benefts including interest and penalties	2,200,000	1,900,000
Unrecognized tax benefits that would impact effective rate	2,200,000	1,600,000
Reduction in valuation allowance	1,400,000	563,000
Accrued interest and penalties	187,000	181,000
Income tax penalties and interest expense	6,000	$ 42,000	$ 22,000
Maximum
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Estimated change in unrecognized tax benefit in next twelve months, lower bound	$ 400,000