Shareholders' Equity (Details)	1 Months Ended	9 Months Ended	28 Months Ended
	Sep. 30, 2018 USD ($) shares	Sep. 30, 2018 USD ($) shares	Sep. 30, 2018 USD ($) shares
Stock Repurchase Program [Abstract]
Stock repurchase program authorized amount	$ 16,000,000	$ 16,000,000	$ 16,000,000
Additional amount approved	$ 1,500,000
Treasury stock shares acquired (in shares) | shares		47,658
Amount paid to repurchase shares during the year		$ 1,217,802
Amount of common stock repurchased			$ 13,800,000
Number of common stock acquired (in shares) | shares	1,136,842	1,136,842	1,136,842
Number of shares issued to management and employees (in shares) | shares		9,870
Cost of shares issued		$ 246,757