Shareholders' Equity (Details) - USD ($)	1 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018
Stock Repurchase Program [Abstract]
Stock repurchase program authorized amount	$ 18,500,000	$ 18,500,000
Additional amount approved	$ 2,500,000
Stock repurchased during period (in shares)		18,343
Amount paid to repurchase shares during the year		$ 561,342	$ 953,419
Amount of common stock repurchased		$ 14,425,071
Number of common stock acquired (in shares)	1,158,449	1,158,449
Number of shares issued (in shares)		8,188
Cost of shares issued		$ 246,534