Shareholders' Equity (Details) - USD ($)	3 Months Ended	6 Months Ended
	Mar. 31, 2017	Jun. 30, 2016	Jul. 14, 2016	Jun. 15, 2016
STOCK REPURCHASE PROGRAM [Abstract]
Stock repurchase program authorized amount	$ 14,500,000
Additional amount approved			$ 4,500,000	$ 2,000,000
Treasury stock, shares, acquired (in shares)	1,500
Amount paid to repurchase shares during the year	$ 26,000
Amount of common stock repurchased		$ 12,000,000
Number of common stock acquired (in shares)		1,060,000