WEIGHTED AVERAGE COMMON SHARES (Details) - shares	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Shares used to compute basic and diluted loss income per share [Abstract]
Basic shares outstanding (in shares)	24,025,000	24,024,000	23,962,000	23,609,000	23,514,000	23,499,000	23,448,000	23,351,000	23,906,395	23,453,427	23,166,977
Dilutive effect of stock options (in shares)									0	0	0
Diluted shares outstanding (in shares)	24,590,000	24,024,000	23,962,000	23,609,000	23,514,000	23,499,000	23,448,000	23,351,000	23,906,395	23,453,427	23,166,977
Stock Option 2 [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from computation of income (loss) per share (in shares)									570,306	773,078	119,722
Stock Option 1 [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from computation of income (loss) per share (in shares)									167,667	218,167	391,935