Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash	$ 3,372	$ 2,416
Accounts receivable, net	15,337	18,310
Contract assets	2,253
Inventories, net	26,724	31,863
Prepaid expenses and other current assets	2,909	2,124
Total current assets	50,595	54,713
LONG-TERM ASSETS:
Property and equipment, net	45,195	46,940
Operating lease right-of-use assets	19,321	15,980
Intangible assets, net	4,186	4,919
Other assets	385	314
TOTAL ASSETS	119,682	122,866
CURRENT LIABILITIES:
Line of credit and other notes payable	1,406	12,917
Current portion of finance lease obligations	1,427	546
Current portion of operating lease obligations	1,832	1,326
Accounts payable	18,180	21,876
Accrued liabilities	6,307	4,911
Customer deposits	18,819	22,717
Total current liabilities	47,971	64,293
LONG-TERM LIABILITIES:
Long-term debt, net of current maturities	9,381	505
Long-term finance lease obligations, net of current portion	1,996	673
Long-term operating lease obligations, net of current portion	19,569	16,591
Other	104	44
Total long-term liabilities	31,050	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 December 31, 2020, and December 31, 2019, respectively	17	17
Treasury stock, at cost, 273,937 shares as of December 31, 2020 and December 31, 2019	(1,842)	(1,842)
Additional paid-in capital	384,749	383,361
Accumulated deficit	(342,263)	(340,776)
Total stockholders’ equity	40,661	40,760
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 119,682	$ 122,866