Condensed Consolidated Balance Sheets - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 7,056,000	$ 3,979,000
Accounts receivable, net	1,499,000	5,945,000
Inventories, net	187,000	209,000
Prepaid expenses and other current assets	2,114,000	3,583,000
Total current assets	10,856,000	13,716,000
Property, plant and equipment, net	55,983,000	60,363,000
Right-of-use assets	841,000	965,000
Goodwill	4,453,000	4,453,000
Investments in foreign joint ventures	9,174,000	10,521,000
Other noncurrent assets	303,000	308,000
Total assets	81,610,000	90,326,000
Current liabilities:
Current portion of long-term notes payable	313,000	0
Current portion of long-term notes payable - related parties	2,140,000	1,000,000
Current portion of finance lease obligation - related parties	2,394,000	3,440,000
Current portion of operating lease obligations	315,000	364,000
Short-term notes payable	307,000	558,000
Accrued liabilities	3,796,000	5,018,000
Accounts payable	2,979,000	4,728,000
Total current liabilities	12,244,000	15,108,000
Long-term notes payable, net of current portion	767,000	0
Long-term notes payable, net of current portion - related parties	4,937,000	6,077,000
Finance lease obligations, net of current portion - related parties	0	648,000
Long-term portion of operating lease obligations	594,000	650,000
Deferred compensation	87,000	0
Deferred income taxes	28,000	0
Total liabilities	18,657,000	22,483,000
Commitments and contingencies (Note 13)
Stockholders' Equity:
Preferred Stock; $0.001 par value, 1,000,000 shares authorized, no shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively	0	0
Stockholders’ equity:
Common stock; $0.001 par value, 37,500,000 shares authorized, 16,896,626 and 16,800,612 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively (Note 14)	17,000	17,000
Additional paid-in capital	90,906,000	90,748,000
Accumulated other comprehensive loss	(826,000)	(291,000)
Accumulated deficit	(27,144,000)	(22,631,000)
Total stockholders’ equity	62,953,000	67,843,000
Total liabilities and equity	$ 81,610,000	$ 90,326,000