Share Repurchase Program (Details) - USD ($)		3 Months Ended
	Feb. 12, 2015	Mar. 31, 2017	Mar. 31, 2016	May 04, 2017
Stock Repurchase Program, Authorized Amount	$ 20,000,000			$ 30,000,000
Stock Repurchase Program, Period in Force	2 years
Treasury Stock Acquired, Average Cost Per Share (in USD per Share)		$ 9.64
Stock Repurchased During Period, Shares		569,624
Stock Repurchased During Period, Value		$ (5,490,956)	$ 0
Additional Paid-in Capital [Member]
Stock Repurchased During Period, Value		$ 4,300,000
Other Current Liabilities [Member]
Stock Repurchased During Period, Value			$ (1,200,000)