Equity (Tables)

9 Months Ended

Sep. 30, 2017

Stockholders' Equity Note [Abstract]

Schedule of weighted average number of shares outstanding

	Three Months Ended September 30,		Nine Months Ended September 30,
	2017	2016	2017	2016
Weighted average number of shares outstanding:
Common stock	20,864,470	20,732,767	20,849,325	20,719,900
Common stock equivalents-stock options, grants	30,003	128,334	43,951	125,940
Diluted shares outstanding	20,894,473	20,861,101	20,893,276	20,845,840