Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 46	$ 48
Restricted cash	597	482
Accounts receivable, net	2,239	3,840
Costs and estimated profit in excess of billings	0	565
Inventories	2,132	1,285
Fair value of contingent earn-out receivable, current	271	373
Other current assets	370	216
Total current assets	5,655	6,809
Property, plant and equipment, net	4,369	4,456
Fair value of contingent earn-out receivable, noncurrent	0	61
Intangible assets, net	1,510	1,589
Total assets	11,534	12,915
Current liabilities:
Notes payable	5,175	5,969
Current portion of long-term debt	800	1,068
Trade accounts payable	5,464	4,856
Customer deposits	1,078	0
Billings in excess of costs and estimated profit	0	983
Accrued compensation	379	416
Other accrued liabilities	1,880	2,370
Total current liabilities	14,776	15,662
Long-term debt	3,555	3,061
Deferred income taxes	28	28
Total long-term liabilities	3,583	3,089
Total liabilities	18,359	18,751
Commitments and contingencies
Shareholders' deficit:
Preferred stock, $.001 par value; 2,000,000 shares authorized; 562,860 shares issued and outstanding at March 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 March 31, 2018 and December 31, 2017, respectively; 2,396,219 shares issued and outstanding at March 31, 2018 and December 31, 2017, respectively	2	2
Additional paid-in capital	83,034	83,014
Accumulated deficit	(89,862)	(88,852)
Total shareholders' deficit	(6,825)	(5,836)
Total liabilities and shareholders' deficit	$ 11,534	$ 12,915