Stock-Based Compensation Plan (Details) - Independent directors compensation plan [Member] - $ / shares	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Number of Shares
Beginning Balance, Outstanding	4,000	4,000
Beginning Balance, Exercisable	4,000	4,000
Granted
Exercised
Forfeited
Ending Balance, Outstanding	4,000	4,000
Ending Balance, Exercisable	4,000	4,000
Average Exercise Price per Share
Beginning Balance, Outstanding	$ 10.2	$ 10.2
Beginning Balance, Exercisable	10.2	10.2
Granted
Exercised
Forfeited
Ending Balance, Outstanding	10.2	10.2
Ending Balance, Exercisable	$ 10.2	$ 10.2
Weighted Average Remaining Contractual Term in Years
Outstanding	3 years 9 months 7 days	4 years 9 months 7 days
Exercisable	3 years 9 months 7 days	4 years 9 months 7 days
Granted	0 years	0 years
Exercised	0 years	0 years
Forfeited	0 years	0 years
Outstanding	3 years 6 months 7 days	3 years 9 months 7 days
Exercisable	3 years 6 months 7 days	3 years 9 months 7 days