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Consolidated Balance Sheets (Parenthetical) - ₪ / shares
Dec. 31, 2016
Dec. 31, 2015
Statement of Financial Position [Abstract]    
Ordinary shares, par value ₪ 0.01 ₪ 0.01
Ordinary shares, authorized 10,000,000 10,000,000
Ordinary shares, issued 7,396,584 7,299,315
Ordinary shares, outstanding 7,381,613 7,284,344
Ordinary shares, treasury shares 14,971 14,971