Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 187	$ 48
Restricted cash	501	482
Accounts receivable, net of allowance for doubtful accounts of $113 and $185 at December 31, 2018 and 2017, respectively	3,289	3,840
Costs and estimated profit in excess of billings	0	565
Inventories	1,790	1,285
Fair value of contingent earn-out receivable, current	63	373
Other current assets	343	216
Total current assets	6,173	6,809
Property, plant and equipment, net	4,131	4,456
Fair value of contingent earn-out receivable, noncurrent	0	61
Intangible assets, net	1,274	1,589
Total assets	11,578	12,915
Current liabilities:
Notes payable	6,513	5,969
Current portion of long-term debt	3,048	1,068
Trade accounts payable	6,240	4,856
Customer deposits	184	0
Billings in excess of costs and estimated profit	0	983
Accrued compensation	492	416
Other accrued liabilities	2,697	2,370
Total current liabilities	19,174	15,662
Long-term debt	2,113	3,061
Deferred income taxes	10	28
Total long-term liabilities	2,123	3,089
Total liabilities	21,297	18,751
Commitments and contingencies
Shareholders' deficit:
Preferred stock, $.001 par value; 2,000,000 shares authorized as of December 31, 2018 and 2017, respectively; 597,139 shares issued and outstanding at December 31, 2018 and 546,466 shares issued and outstanding at December 31, 2017	1	0
Common stock, $.001 par value; 7,500,000 shares authorized as of December 31, 2018 and 2017, respectively; 2,466,219 shares issued and outstanding at December 31, 2018 and 2,396,219 issued and outstanding at December 31, 2017	2	2
Additional paid-in capital	82,646	83,014
Accumulated deficit	(92,368)	(88,852)
Total shareholders' deficit	(9,719)	(5,836)
Total liabilities and shareholders' deficit	$ 11,578	$ 12,915