Stock-Based Compensation and Stock Options - Narrative (Details) - USD ($)	1 Months Ended			12 Months Ended
	Mar. 31, 2016	Sep. 30, 2015	Jan. 31, 2012	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award
Share-based compensation, options, exercises in period (shares)				0	0	0
Excess tax benefit (tax deficiency) from share-based compensation, financing activities				$ 0	$ 0	$ 0
Options granted (in shares)				150,000	400,000
Exercise price of employee option shares of common stock (in dollars per share)				$ 8.55	$ 8.07
Options outstanding (in shares)				600,000	775,000	425,000	475,000
Options forfeited (in shares)				325,000	50,000	50,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Allocated share-based compensation expense (reversal of)				$ 933,000	$ 401,000	$ 982,000
Forfeiture rate (percent)				0.00%
Stock Options | Employee Options 2012
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)			100,000
Exercise price of employee option shares of common stock (in dollars per share)			$ 28.98
Options vest and become exercisable annually (in shares)			25,000
Options vested (in shares)				50,000
Options outstanding (in shares)				50,000,000
Options canceled (in shares)						25,000
Options forfeited (in shares)						25,000
Unrecognized stock-based compensation expense				$ 0
Stock Options | Employee Options 2015
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)		400,000
Exercise price of employee option shares of common stock (in dollars per share)		$ 8.07
Options vested (in shares)				200,000
Options outstanding (in shares)				400,000
Options vest and become exercisable quarterly (in shares)		50,000
Unrecognized stock-based compensation expense				$ 783,000
Unrecognized compensation expense, period for recognition (in years)				1 year
Stock Options | Employee Options 2016
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)	150,000
Exercise price of employee option shares of common stock (in dollars per share)	$ 8.55
Options vest and become exercisable annually (in shares)	37,500
Options vested (in shares)				0
Options outstanding (in shares)				150,000
Unrecognized stock-based compensation expense				$ 565,000
Unrecognized compensation expense, period for recognition (in years)				3 years 2 months 12 days