CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net loss	$ (273)	$ (1,207)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Share-based compensation	200	15
Depreciation and amortization	1,046	1,059
Gain on sale of property, plant and equipment	(8)	(439)
Non-cash lease expense	22	0
Changes in operating assets and liabilities:
Accounts receivable, net	(2,334)	931
Contract assets	890	(249)
Prepaid expenses and other current assets	(57)	180
Other assets	(31)	102
Accounts payable and accrued liabilities	(543)	(299)
Contract liabilities	(443)	(104)
Net cash used in operating activities	(1,531)	(11)
Cash flows from investing activities:
Proceeds from sale of property, plant and equipment	88	538
Purchases of property, plant and equipment	(66)	(759)
Repayments on note receivable (included in Prepaid expenses and other current assets)	515	12
Short term investment - (certificate of deposit)	1,035	(15)
Net cash provided by (used in) investing activities	1,572	(224)
Cash flows from financing activities:
Principal payment on long-term debt	(56)	(7)
Cash paid for treasury shares purchased	(218)	0
Net cash used in financing activities	(274)	(7)
Change in cash	(233)	(242)
Cash, beginning of period	2,015	3,939
Cash, end of period	1,782	3,697
Supplemental schedule of investing and financing activities:
Addition of property, plant and equipment (non-cash)	$ 0	$ 277