LONG TERM DEBT AND NOTES PAYABLE TO BANK (Schedule of Long-Term Debt) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Total debt	$ 8,721	$ 7,745
Debt issuance costs	(170)	(175)
Total debt and debt issuance costs	8,551	7,570
Less amounts classified as current maturities	5,498	3,941
Long-term Debt	3,053	3,629
Revolving credit facility with MidCap, see above description for additional details
Debt Instrument [Line Items]
Total debt	5,144	3,646
Equipment note [Member]
Debt Instrument [Line Items]
Total debt	146	63
Bank of America term loan [Member]
Debt Instrument [Line Items]
Total debt	2,411	2,500
K and R, LLC [Member]
Debt Instrument [Line Items]
Total debt	136	652
Grade Lane 7100, LLC [Member]
Debt Instrument [Line Items]
Total debt	$ 884	$ 884