CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income (loss)	$ 100	$ (558)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Share-based compensation	128	10
Depreciation and amortization	697	725
Gain on sale of property, plant and equipment	(15)	(439)
Non-cash lease expense	17	0
Changes in operating assets and liabilities:
Accounts receivable, net	(760)	(842)
Contract Assets	712	272
Prepaid expenses and other current assets	(89)	176
Other assets	39	205
Accounts payable and accrued liabilities	(495)	(667)
Contract Liabilities	(731)	(371)
Net cash used in operating activities	(397)	(1,489)
Cash flows from investing activities:
Proceeds from sale of property, plant and equipment	42	538
Purchases of property, plant and equipment	(7)	(559)
Repayments on notes receivable (included in Prepaid expenses and other current assets)	510	8
Short term investment - (certificate of deposit)	1,035	(9)
Net cash provided by (used in) investing activities	1,580	(22)
Cash flows from financing activities:
Principal payment on long-term debt	(6)	(5)
Cash paid for treasury shares purchased	(218)	0
Net cash used in financing activities	(224)	(5)
Change in cash	959	(1,516)
Cash, beginning of period	2,015	3,939
Cash, end of period	2,974	2,423
Supplemental schedule of investing and financing activities:
Addition of property, plant and equipment (non-cash)	$ 0	$ 317