CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net loss	$ (6,057)	$ (2,774)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	1,082	1,381
Share-based compensation	117	250
Non-cash lease expense	10	27
Bad debt expense	238	20
Gain on sale of property, plant and equipment	0	(7)
Loss on asset impairment	4,490	396
Changes in operating assets and liabilities:
Accounts receivable, net	(433)	(86)
Contract assets	625	1,117
Inventories	(187)	0
Prepaid expenses and other current assets	(8)	(52)
Other assets	26	93
Accounts payable and accrued liabilities	(216)	222
Contract Liabilities	107	(350)
Net cash (used in) provided by operating activities	(206)	237
Cash flows from investing activities:
Proceeds from sale of property, plant and equipment	0	88
Purchases of property, plant and equipment	(171)	(91)
Payments received on note receivable (included in Prepaid expenses and other current assets)	13	517
Short term investment - (certificate of deposit)	0	1,035
Net cash (used in) provided by investing activities	(158)	1,549
Cash flows from financing activities:
Principal payment on long-term debt	0	(56)
Repurchase of common shares	(525)	(222)
Proceeds from PPP loan	1,111	0
Net cash provided by (used in) financing activities	586	(278)
Change in cash	222	1,508
Cash, beginning of year	3,523	2,015
Cash, end of year	$ 3,745	$ 3,523