CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - shares	Mar. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Common stock, authorized	12,000,000	12,000,000
Common stock, issued	5,755,503	5,753,743
Common stock, outstanding	5,489,967	5,488,207
Treasury stock, shares	265,536	265,536