Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
CURRENT ASSETS
Cash	$ 609	$ 602
Accounts receivable, less allowance of $57 for doubtful accounts	1,421	1,503
Prepaid expenses and other current assets	264	190
Assets held for sale	212	459
Total current assets	2,506	2,754
PROPERTY	65,640	58,959
Accumulated depreciation	(34,511)	(33,215)
Net property	31,129	25,744
OTHER ASSETS
Deferred development costs	10,314	8,843
Other noncurrent assets	1,413	1,542
Total other assets	11,727	10,385
TOTAL ASSETS	45,362	38,883
CURRENT LIABILITIES
Accounts payable	606	569
Payroll and employee benefits	588	607
Current portion of accrued retirement benefits	164	175
Income taxes payable		443
Deferred revenue	198	24
Other current liabilities	171	580
Total current liabilities	1,727	2,398
LONG-TERM LIABILITIES
Long-term debt	1,235	6,857
Accrued retirement benefits	8,980	9,059
Deposits	2,464	2,378
Deferred revenue	280	409
Other noncurrent liabilities	50	40
Total long-term liabilities	13,009	18,743
COMMITMENTS AND CONTINGENCIES (Note 11)
STOCKHOLDERS' EQUITY
Common stock--no par value, 43,000,000 shares authorized, 19,031,289 and 18,958,018 shares issued and outstanding	78,566	78,123
Additional paid in capital	9,246	9,246
Accumulated deficit	(35,503)	(47,332)
Accumulated other comprehensive loss	(21,683)	(22,295)
Total stockholders' equity	30,626	17,742
TOTAL LIABILITIES & STOCKHOLDERS' EQUITY	$ 45,362	$ 38,883