Stock Options (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2017

Dec. 31, 2016

Stock Options [Abstract]

Schedule of weighted-average assumptions Black-Scholes option-pricing model

	For the Three Months Ended  March 31,
	2017			2016
Risk-free interest rate		2.27	%		1.47	%
Expected life of option grants		7 years			7 years
Expected volatility of underlying stock		47.34	%		49.02	%
Dividends assumption	$	—		$	—

	2016	2015
Risk-free interest rate	1.35–1.47%	1.73–2.27%
Expected life of option grants	7 years	7 years
Expected volatility of underlying stock	47.47%–49.02%	39.4%–51.45%
Dividends assumption	$ —	$ —

Schedule of changes in options outstanding

	Number of  Options		Weighted Average Exercise Price		Aggregate Intrinsic Value (in thousands)
Outstanding at January 1, 2015	183,969		$	39.30	$	14,820
Granted	177,763			25.65		—
Exercised	(188	)		—		—
Expired	(8,694	)		—		—
Forfeitures	(35,980	)		—		—
Outstanding at December 31, 2015	316,870		$	30.00	$	1,815
Granted	105,460			7.64		—
Exercised	—			—		—
Expired	(28,500	)		—		—
Forfeitures	(26,971	)		—		—
Outstanding at December 31, 2016	366,859		$	24.87	$	(116,726	)
Exercisable at December 31, 2015	108,536		$	28.20	$	1,815
Exercisable at December 31, 2016	158,120		$	29.99	$	(62,454	)