CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - USD ($)	1 Months Ended	12 Months Ended
	Nov. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other Comprehensive Income (Loss), Tax		$ (14,196)	$ (1,836)	$ 24,364
Cash dividends declared, Common, per share	$ 0.051	$ 0	$ 0.666	$ 0.82
Vesting of restricted stock units, shares		80,598	31,147	130,925
Treasury shares repurchased, shares			0	0
Treasury Stock [Member]
Treasury shares repurchased, shares		0	596,632	150,000