Stock Repurchase Program (Details) - USD ($)	3 Months Ended			18 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Mar. 31, 2019	Feb. 21, 2018
Equity, Class of Treasury Stock [Line Items]
Repurchased Amount	$ 1,000,000.0		$ 2,718,000
Common Stock
Equity, Class of Treasury Stock [Line Items]
Repurchased Amount		$ 1,008,652		$ 1,008,652
Remaining authorized repurchase amount	$ 14,000,000.0			$ 14,000,000.0
February 2018, 15 Million Share Repurchase Program | Common Stock
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount					$ 15,000,000.0