Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended			6 Months Ended		12 Months Ended
	Jan. 22, 2016	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2014
Stock-based compensation expense					$ 2,033	$ 821
Common Stock, Shares, Issued		47,075,635			47,075,635		46,817,829
Common Stock, Shares, Outstanding		47,075,635			47,075,635		46,817,829
Common Stock
Authorized Common Stock		100,000,000			100,000,000		100,000,000
Par Value per share		$ 0.00001			$ 0.00001		$ 0.00001
Summary of Stock Option Activity
Proceeds from Stock Options Exercised					$ 1,005
Options
Exercised - in shares					3.94
Expired (in shares)							(86,000)
Forfeited (in shares)							11.30
Weighted-Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)						$ 7.88	$ 7.88
Exercised (in dollars per share)					$ 2.89
Expired (in dollars per share)							11.30
Outstanding at the end of the period ( in dollars per share)		9.94			$ 9.94		$ 6.94
Outstanding at the end of the period (in dollars per share)								$ 7.88
Weighted- Average Remaining Contractual Life (in years)					3 years 2 months 27 days		3 years 5 months 19 days
Aggregate Intrinsic Value
Aggregate Intrinsic Value					$ 900		$ 1,300
Summary of the RSU activity
Exercised - in shares					3.94
Forfeited							86,000
Weighted Average Grant Date Fair Value
Unvested outstanding as of beginning of period			$ 6.94		$ 6.94
Outstanding at the end of the period ( in dollars per share)		$ 9.94			$ 9.94		$ 6.94
Restricted stock units (RSUs)
Vesting Period					3 years
Fair Value	$ 10.77				$ 10.79
Recognition period of unrecognized compensation cost					1 year 10 months 28 days
Unrecognized Compensation Expense		$ 3,900			$ 3,900
Options
Outstanding at the beginning of the Period (in shares)			827,383		827,383
Granted (in shares)					410,371
Outstanding at the end of the Period (in shares)		1,035,323			1,035,323		827,383
Weighted-Average Exercise Price
Outstanding at the end of the period ( in dollars per share)		$ 6.46			$ 6.46		$ 4.09
Weighted- Average Remaining Contractual Life (in years)					1 year 10 months 28 days		2 years 1 month 13 days
Aggregate Intrinsic Value
Aggregate fair value					$ 6,700		$ 3,400
Summary of the RSU activity
Outstanding at the beginning of the Period (in shares)			827,383		827,383
Granted (in shares)					410,371
Vested					(202,431)
Outstanding at the end of the Period (in shares)		1,035,323			1,035,323		827,383
Weighted Average Grant Date Fair Value
Unvested outstanding as of beginning of period			$ 4.09		$ 4.09
Granted	$ 10.77				10.79
Vested					5.56
Outstanding at the end of the period ( in dollars per share)		$ 6.46			$ 6.46		$ 4.09
RSU And Performance Awards
Stock-based compensation expense		$ 600		$ 200	$ 2,000	$ 800
Stock options.
Vesting Period					3 years
Performance Awards
Options
Outstanding at the beginning of the Period (in shares)			475,409		475,409
Granted (in shares)					178,172
Outstanding at the end of the Period (in shares)							475,409
Summary of the RSU activity
Outstanding at the beginning of the Period (in shares)			475,409		475,409
Granted (in shares)					178,172
Outstanding at the end of the Period (in shares)							475,409
Percentage of target to be achieved to be eligible to receive performance awards					100.00%		135.00%
Time-based Awards
Options
Outstanding at the beginning of the Period (in shares)			351,974		351,974
Granted (in shares)					232,199
Outstanding at the end of the Period (in shares)							351,974
Summary of the RSU activity
Outstanding at the beginning of the Period (in shares)			351,974		351,974
Granted (in shares)					232,199
Outstanding at the end of the Period (in shares)							351,974
Percentage of target to be achieved to be eligible to receive time based awards					100.00%		100.00%
Outstanding as of beginning
Range of Exercise Price
Lower end of exercise price								2.44
Upper end of exercise price								$ 16.27
Granted
Options
Outstanding at the beginning of the Period (in shares)						398,200	398,200
Outstanding at the end of the Period (in shares)								398,200
Summary of the RSU activity
Outstanding at the beginning of the Period (in shares)						398,200	398,200
Outstanding at the end of the Period (in shares)								398,200
Expired
Options
Outstanding at the beginning of the Period (in shares)			312,200		312,200
Outstanding at the end of the Period (in shares)							312,200
Summary of the RSU activity
Outstanding at the beginning of the Period (in shares)			312,200		312,200
Outstanding at the end of the Period (in shares)							312,200
Forfeited
Options
Exercised - in shares					(132,900)
Summary of the RSU activity
Exercised - in shares					(132,900)
Outstanding as of the end
Options
Outstanding at the end of the Period (in shares)		179,300			179,300
Range of Exercise Price
Lower end of exercise price					$ 2.44		$ 2.44
Upper end of exercise price					$ 16.27		$ 16.27
Summary of the RSU activity
Outstanding at the end of the Period (in shares)		179,300			179,300
Ex Executive Officer
Severance Costs			$ 1,400
Ex Executive Officer | Restricted stock units (RSUs)
Stock-based compensation expense			$ 500
Summary of the RSU activity
Vested			(167,511)
Minimum
Performance Awards
Performance Period					1 year
Minimum | Plan 2015 Member
Payout range as a percent of award target					0.00%
Minimum | Performance Awards
Vesting Period					1 year
Maximum
Performance Awards
Performance Period					2 years
Maximum | Plan 2015 Member
Payout range as a percent of award target					200.00%
Maximum | Performance Awards
Vesting Period					2 years
Executive Officer [Member] | Restricted stock units (RSUs)
Granted (in shares)	367,519
Non Employee Board Member | Restricted stock units (RSUs)
Granted (in shares)	34,920				7,932