Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Federal statutory rate	35.00%	35.00%	35.00%
Increase in valuation allowance	$ 1,805,000	$ 378,000	$ 240,000
U.S federal net operating loss carryforwards	$ 76,400,000	32,700,000
Period to utilize the net operating loss carryforwards	19 years
NOL carryforward used in period	$ 6,200,000	6,000,000
Foreign operating loss carryforwards	3,000,000	0
Unrecognized tax benefts including interest and penalties	2,800,000	2,200,000
Unrecognized tax benefits that would impact effective rate	2,800,000	2,200,000
Reduction in valuation allowance	2,300,000	1,401,000
Accrued interest and penalties	216,000	187,000
Income tax penalties and interest expense	30,000	$ 6,000	$ 42,000
Maximum
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Estimated change in unrecognized tax benefit in next twelve months, lower bound	$ 500,000