Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash	$ 2,541	$ 2,416
Accounts receivable, net	24,161	18,310
Contract assets	1,475
Inventories, net	25,480	31,863
Prepaid expenses and other current assets	2,463	2,124
Total current assets	56,120	54,713
LONG-TERM ASSETS:
Property and equipment, net	46,101	46,940
Operating lease right-of-use assets	19,067	15,980
Intangible assets, net	4,369	4,919
Other assets	399	314
TOTAL ASSETS	126,056	122,866
CURRENT LIABILITIES:
Line of credit and other notes payable	8,176	12,917
Current portion of finance lease obligations	1,174	546
Current portion of operating lease obligations	1,588	1,326
Accounts payable	17,631	21,876
Accrued liabilities	5,750	4,911
Customer deposits	18,524	22,717
Total current liabilities	52,843	64,293
LONG-TERM LIABILITIES:
Long-term debt, net of current maturities	9,497	505
Long-term portion of lease obligations, finance leases	1,856	673
Long-term portion of lease obligations, operating leases	19,529	16,591
Other	96	44
Total long-term liabilities	30,978	17,813
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS’ EQUITY:
Preferred stock, $0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding
Common stock, $0.001 par value; 30,000,000 shares authorized; 17,211,498 and 16,830,930 shares issued as of September 30, 2020, and December 31, 2019, respectively	17	17
Treasury stock, at cost, 273,937 shares as of September 30, 2020 and December 31, 2019	(1,842)	(1,842)
Additional paid-in capital	384,356	383,361
Accumulated deficit	(340,296)	(340,776)
Total stockholders’ equity	42,235	40,760
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 126,056	$ 122,866