Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents	$ 18,367	$ 17,672
Restricted cash	165	163
Accounts receivable, net	760	2,585
Inventories	7,227	8,000
Other inventory supplies	1,317	1,486
Prepaid expenses and other current assets	1,387	1,082
Assets held for sale	16,595	14,761
Total current assets	45,818	45,749
Property and equipment, net	2,486	7,110
Other assets	47	154
Total assets	48,351	53,013
Liabilities and stockholders' equity
Accounts payable	710	948
Accrued payroll	570	182
Accrued and other current liabilities	562	602
Corporate income and franchise taxes	456	568
Accrued real estate taxes	300	241
Advance payments	19	23
Total current liabilities	2,617	2,564
Commitments and contingencies
Stockholders' equity
Preferred stock, $0.001 par value, 5,000,000 undesignated shares authorized, no shares issued or outstanding
Common stock, $0.001 par value, 8,200,000 shares authorized and 2,865,374 and 2,860,367 shares issued; 2,687,889 and 2,682,882 shares outstanding	29	29
Additional paid-in capital	375,239	374,903
Treasury stock, at cost, 177,484 shares	(12,148)	(12,148)
Accumulated other comprehensive loss	(8)	(30)
Accumulated deficit	(317,378)	(312,305)
Total stockholders' equity	45,734	50,449
Total liabilities and stockholders' equity	$ 48,351	$ 53,013