CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash	$ 2,423	$ 3,939
Short term investment (certificate of deposit)	1,026	1,017
Accounts receivable, net of allowance of $10	4,774	4,142
Contract Assets	653	925
Prepaid expenses and other current assets	126	302
Total current assets	9,002	10,325
Property, plant and equipment, net	12,367	12,352
Intangibles, net	60	63
Other assets	1,017	1,230
Total assets	22,446	23,970
Current liabilities:
Accounts payable and accrued liabilities	844	1,511
Contract liabilities	241	612
Current portion of long-term debt	9	0
Total current liabilities	1,094	2,123
Long-term debt	53	0
Total liabilities	1,147	2,123
Commitments and contingencies (Note 8)	0	0
Stockholders' equity:
Preferred stock, $0.001 par value, 10,000,000 shares authorized, 0 shares issued and outstanding	0	0
Common stock, $0.001 par value, 24,500,000 shares authorized, 15,438,660 shares issued	15	15
Treasury stock	(2,040)	(2,040)
Additional paid-in capital	73,256	73,246
Accumulated deficit	(49,932)	(49,374)
Total stockholders' equity	21,299	21,847
Total liabilities and stockholders' equity	$ 22,446	$ 23,970